10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒Quarterly Report Pursuant to Section 13 or 15(d) of the SecuritiesExchange Act of 1934

For the quarterly period ended September 30, 2016

or

☐Transition Report Pursuant to Section 13 or 15(d) of the SecuritiesExchange Act of 1934

For the transition period from ____________ to ____________

Commission File Number 1-10709

PS BUSINESS PARKS, INC.

(Exact name of registrant as specified in its charter)

California	95-4300881
(State or Other Jurisdiction	(I.R.S. Employer
of Incorporation)	Identification Number)

701 Western Avenue, Glendale, California 91201-2397

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (818) 244-8080

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes ☒  No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No ☒

As of October 24, 2016, the number of shares of the registrant’s common stock, $0.01 par value per share, outstanding was 27,120,001.

PS BUSINESS PARKS, INC.

INDEX

	Page
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
Consolidated balance sheets as of September 30, 2016 (unaudited) and December 31, 2015	3
Consolidated statements of income (unaudited) for the three and nine months ended
September 30, 2016 and 2015	4
Consolidated statement of equity (unaudited) for the nine months ended September 30, 2016	5
Consolidated statements of cash flows (unaudited) for the nine months ended
September 30, 2016 and 2015	6
Notes to consolidated financial statements (unaudited)	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3. Quantitative and Qualitative Disclosures About Market Risk	36
Item 4. Controls and Procedures	36
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	36
Item 1A. Risk Factors	36
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	36
Item 6. Exhibits	38

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

PS BUSINESS PARKS, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share data)

	September 30,		December 31,
	2016		2015
	(Unaudited)
ASSETS
Cash and cash equivalents	$	5,016	$	188,912
Real estate facilities, at cost:
Land		799,207		793,569
Buildings and improvements		2,238,804		2,215,515
		3,038,011		3,009,084
Accumulated depreciation		(1,147,187)		(1,082,603)
		1,890,824		1,926,481
Land held for future development		6,081		6,081
		1,896,905		1,932,562
Investment in and advances to unconsolidated joint venture		55,536		26,736
Rent receivable, net		2,013		2,234
Deferred rent receivable, net		29,717		28,327
Other assets		10,597		7,887
Total assets	$	1,999,784	$	2,186,658
LIABILITIES AND EQUITY
Accrued and other liabilities	$	83,093	$	76,059
Credit facility		60,000		—
Mortgage note payable		—		250,000
Total liabilities		143,093		326,059
Commitments and contingencies
Equity:
PS Business Parks, Inc.’s shareholders’ equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized,
36,800 shares issued and outstanding at
September 30, 2016 and December 31, 2015		920,000		920,000
Common stock, $0.01 par value, 100,000,000 shares authorized,
27,120,001 and 27,034,073 shares issued and outstanding at
September 30, 2016 and December 31, 2015, respectively		270		269
Paid-in capital		729,957		722,009
Cumulative net income		1,467,323		1,375,421
Cumulative distributions		(1,459,633)		(1,357,203)
Total PS Business Parks, Inc.’s shareholders’ equity		1,657,917		1,660,496
Noncontrolling interests:
Common units		198,774		200,103
Total noncontrolling interests		198,774		200,103
Total equity		1,856,691		1,860,599
Total liabilities and equity	$	1,999,784	$	2,186,658

See accompanying notes.

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PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited, in thousands, except per share data)

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Revenues:
Rental income	$	97,340	$	93,322	$	289,272	$	278,585
Facility management fees		130		130		389		410
Total operating revenues		97,470		93,452		289,661		278,995
Expenses:
Cost of operations		30,796		30,448		92,440		92,251
Depreciation and amortization		24,631		25,985		74,886		79,243
General and administrative		2,970		3,276		11,982		10,172
Total operating expenses		58,397		59,709		179,308		181,666
Other income and (expense):
Interest and other income		76		154		551		406
Interest and other expense		(155)		(3,368)		(5,507)		(10,029)
Total other income and (expense)		(79)		(3,214)		(4,956)		(9,623)
Gain on sale of real estate facilities		—		15,748		—		28,235
Net income	$	38,994	$	46,277	$	105,397	$	115,941
Net income allocation:
Net income allocable to noncontrolling interests:
Noncontrolling interests—common units	$	5,315	$	6,087	$	13,495	$	14,467
Total net income allocable to noncontrolling interests		5,315		6,087		13,495		14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders		13,833		17,609		41,498		47,853
Restricted stock unit holders		128		97		387		237
Common shareholders		19,718		22,484		50,017		53,384
Total net income allocable to PS Business Parks, Inc.		33,679		40,190		91,902		101,474
Net income	$	38,994	$	46,277	$	105,397	$	115,941
Net income per common share:
Basic	$	0.73	$	0.83	$	1.85	$	1.98
Diluted	$	0.72	$	0.83	$	1.84	$	1.97
Weighted average common shares outstanding:
Basic		27,103		26,985		27,076		26,956
Diluted		27,201		27,049		27,166		27,034
Dividends declared per common share	$	0.75	$	0.60	$	2.25	$	1.60

See accompanying notes.

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PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENT OF EQUITY

FOR THE NINE MONTHS ENDED SEPTEMBER30, 2016

(Unaudited, in thousands, except share data)

													Total PS
													Business Parks,
	Preferred Stock			Common Stock			Paid-in		Cumulative		Cumulative		Inc.’s Shareholders’		Noncontrolling		Total
	Shares	Amount		Shares	Amount		Capital		Net Income		Distributions		Equity		Interests		Equity
Balances at December 31, 2015	36,800	$	920,000	27,034,073	$	269	$	722,009	$	1,375,421	$	(1,357,203)	$	1,660,496	$	200,103	$	1,860,599
Exercise of stock options	—		—	49,882		1		2,955		—		—		2,956		—		2,956
Stock compensation, net	—		—	36,046		—		6,606		—		—		6,606		—		6,606
Net income	—		—	—		—		—		91,902		—		91,902		13,495		105,397
Distributions:
Preferred stock	—		—	—		—		—		—		(41,498)		(41,498)		—		(41,498)
Common stock	—		—	—		—		—		—		(60,932)		(60,932)		—		(60,932)
Noncontrolling interests	—		—	—		—		—		—		—		—		(16,437)		(16,437)
Adjustment to noncontrolling interests
in underlying operating partnership	—		—	—		—		(1,613)		—		—		(1,613)		1,613		—
Balances at September 30, 2016	36,800	$	920,000	27,120,001	$	270	$	729,957	$	1,467,323	$	(1,459,633)	$	1,657,917	$	198,774	$	1,856,691

See accompanying notes.

5

PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited, in thousands)

	For The Nine Months
	Ended September 30,
	2016		2015
Cash flows from operating activities:
Net income	$	105,397	$	115,941
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense		74,886		79,243
In-place lease adjustment		(437)		(1,004)
Tenant improvement reimbursements, net of lease incentives		(1,253)		(1,418)
Gain on sale of real estate facilities		—		(28,236)
Stock compensation		8,933		6,949
Increase in receivables and other assets		(4,248)		(4,258)
Increase in accrued and other liabilities		4,395		11,398
Total adjustments		82,276		62,674
Net cash provided by operating activities		187,673		178,615
Cash flows from investing activities:
Capital expenditures to real estate facilities		(24,230)		(35,067)
Capital expenditures to land held for development		—		(2,809)
Investment in and advances to unconsolidated joint venture		(28,800)		—
Acquisition of real estate facilities		(12,628)		—
Proceeds from sale of real estate facilities		—		55,160
Net cash (used in) provided by investing activities		(65,658)		17,284
Cash flows from financing activities:
Borrowings on credit facility		116,000		—
Repayment of borrowings on credit facility		(56,000)		—
Repayment of mortgage note payable		(250,000)		—
Proceeds from the exercise of stock options		2,956		3,987
Distributions paid to preferred shareholders		(41,498)		(45,366)
Distributions paid to noncontrolling interests		(16,437)		(11,689)
Distributions paid to common shareholders		(60,932)		(43,156)
Net cash used in financing activities		(305,911)		(96,224)
Net (decrease) increase in cash and cash equivalents		(183,896)		99,675
Cash and cash equivalents at the beginning of the period		188,912		152,467
Cash and cash equivalents at the end of the period	$	5,016	$	252,142
Supplemental schedule of non-cash investing and financing activities:
Adjustment to noncontrolling interests in underlying operating partnership:
Noncontrolling interests—common units	$	1,613	$	2,149
Paid-in capital	$	(1,613)	$	(2,149)
Non-cash distributions related to the redemption of preferred stock:
Paid-in capital	$	—	$	2,487
Cumulative distributions	$	—	$	(2,487)
Preferred stock called for redemption:
Preferred stock called for redemption and reclassified to liabilities	$	—	$	75,000
Preferred stock called for redemption and reclassified from equity	$	—	$	(75,000)

See accompanying notes.

6

PS BUSINESS PARKS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2016

1. Organization and description of business

PS Business Parks, Inc. (“PSB”) was incorporated in the state of California in 1990. As of September 30, 2016, PSB owned 77.9% of the common partnership units (the “common partnership units”) of PS Business Parks, L.P. (the “Operating Partnership”). The remaining common partnership units are owned by Public Storage (“PS”). PSB, as the sole general partner of the Operating Partnership, has full, exclusive and complete responsibility and discretion in managing and controlling the Operating Partnership. PSB and its subsidiaries, including the Operating Partnership, are collectively referred to as the “Company.” Assuming issuance of the Company’s common stock upon redemption of its common partnership units, PS would own 42.0% (or 14.5 million shares) of the outstanding shares of the Company’s common stock.

The Company is a fully-integrated, self-advised and self-managed real estate investment trust (“REIT”) that owns, operates, acquires and develops commercial properties, primarily multi-tenant flex, office and industrial space. As of September 30, 2016, the Company owned and operated 28.2 million rentable square feet of commercial space in six states. The Company also manages 737,000 rentable square feet on behalf of PS.

References to the number of properties or square footage are unaudited and outside the scope of the Company’s independent registered public accounting firm’s review of the Company’s financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States).

2. Summary of significant accounting policies

Basis of presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2016 are not necessarily indicative of the results that may be expected for the year ended December 31, 2016. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.  

Consolidation and Equity Method of Accounting

The Company accounts for its investment in a joint venture that it has significant influence over, but does not control, using the equity method of accounting eliminating intra-entity profits and losses as if the joint venture were a consolidated subsidiary.

The accompanying consolidated financial statements include the accounts of PSB and the Operating Partnership. All significant inter-company balances and transactions have been eliminated in the consolidated financial statements.

The Company consolidates all variable interest entities (each a “VIE”) for which it is the primary beneficiary. Generally, a VIE is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership may be considered a VIE if the limited partners do not participate in operating decisions. Under this criteria, the Operating Partnership is considered a VIE. The Company’s significant asset is its investment in the Operating Partnership, and consequently, substantially all of the Company’s assets and

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liabilities represent those assets and liabilities of the Operating Partnership. All of the Company’s debt is an obligation of the Operating Partnership.

Noncontrolling interests

The Company’s noncontrolling interests are reported as a component of equity separate from the parent’s equity. Purchases or sales of equity interests that do not result in a change in control are accounted for as equity transactions. In addition, net income attributable to the noncontrolling interests is included in consolidated net income on the face of the income statement and, upon a gain or loss of control, the interests purchased or sold, as well as any interests retained, are recorded at fair value with any gain or loss recognized in earnings. At the end of each reporting period, the Company determines the amount of equity (book value of net assets) which is allocable to the noncontrolling interests based upon the ownership interest, and an adjustment is made to the noncontrolling interests, with a corresponding adjustment to paid-in capital, to reflect the noncontrolling interests’ equity interest in the Company.

Use of estimates

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates.

Allowance for doubtful accounts

The Company monitors the collectability of its receivable balances including the deferred rent receivable on an ongoing basis. Based on these reviews, the Company maintains an allowance for doubtful accounts for estimated losses resulting from the possible inability of tenants to make contractual rent payments to the Company. A provision for doubtful accounts is recorded during each period. The allowance for doubtful accounts is netted against tenant and other receivables on the consolidated balance sheets. Tenant receivables are net of an allowance for uncollectible accounts totaling $400,000 at September 30, 2016 and December 31, 2015. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $919,000 and $909,000 at September 30, 2016 and December 31, 2015, respectively.

Financial instruments

The methods and assumptions used to estimate the fair value of financial instruments are described below. The Company has estimated the fair value of financial instruments using available market information and appropriate valuation methodologies. Considerable judgment is required in interpreting market data to develop estimates of market value. Accordingly, estimated fair values are not necessarily indicative of the amounts that could be realized in current market exchanges. The Company determines the estimated fair value of financial assets and liabilities utilizing a hierarchy of valuation techniques based on whether the inputs to a fair value measurement are considered to be observable or unobservable in a marketplace. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. This hierarchy requires the use of observable market data when available. The following is the fair value hierarchy:

* Level 1—quoted prices for identical instruments in active markets;

* Level 2—quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and

* Level 3—fair value measurements derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Financial assets that are exposed to credit risk consist primarily of cash and cash equivalents and receivables. The Company considers all highly liquid investments with a remaining maturity of three months or less at the date of

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purchase to be cash equivalents. Cash and cash equivalents, which consist primarily of money market investments, are only invested in entities with an investment grade rating. Receivables are comprised of balances due from a large number of customers. Balances that the Company expects to become uncollectible are reserved for or written off. Due to the short period to maturity of the Company’s cash and cash equivalents, accounts receivable, other assets and accrued and other liabilities, the carrying values as presented on the consolidated balance sheets are reasonable estimates of fair value.

Carrying values of the Company’s mortgage note payable and unsecured credit facility approximate fair value. The characteristics of these financial instruments, market data and other comparative metrics utilized in determining these fair values are “Level 2” inputs.

Real estate facilities

Real estate facilities are recorded at cost. Costs related to the renovation or improvement of the properties are capitalized. Expenditures for repairs and maintenance are expensed as incurred. Expenditures that are expected to benefit a period greater than two years and exceed $2,000 are capitalized and depreciated over their estimated useful life. Buildings and improvements are depreciated using the straight-line method over their estimated useful lives, which generally range from five to 30 years. Transaction costs, which include tenant improvements and lease commissions, of $1,000 or more for leases with terms greater than one year are capitalized and depreciated over their estimated useful lives. Transaction costs less than $1,000 or for leases of one year or less are expensed as incurred.

Land held for future development

Property taxes, insurance, interest and costs essential to the development of property for its intended use are capitalized during the period of development. Upon classification of an asset as held for development, depreciation of the asset is ceased.

Properties held for disposition

An asset is classified as an asset held for disposition when it meets certain requirements, which include, among other criteria, the approval of the sale of the asset, the marketing of the asset for sale and the expectation by the Company that the sale will likely occur within the next 12 months. Upon classification of an asset as held for disposition, depreciation of the asset is ceased, and the net book value of the asset is included on the balance sheet as properties held for disposition.

Intangible assets/liabilities

Intangible assets and liabilities include above-market and below-market in-place lease values of acquired properties based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. The capitalized above-market and below-market lease values (included in other assets and accrued liabilities in the accompanying consolidated balance sheets) are amortized to rental income over the remaining non-cancelable terms of the respective leases.

As of September 30, 2016, the value of in-place leases resulted in net intangible assets of $1.2 million, net of $9.0 million of accumulated amortization with a weighted average amortization period of 9.2 years, and net intangible liabilities of $990,000, net of $9.8 million of accumulated amortization with a weighted average amortization period of 6.3 years. As of December 31, 2015, the value of in-place leases resulted in net intangible assets of $1.7 million, net of $8.6 million of accumulated amortization and net intangible liabilities of $1.8 million, net of $9.0 million of accumulated amortization.

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The Company recorded net increases in rental income of $106,000 and $341,000 for the three months ended September 30, 2016 and 2015, respectively, and $437,000 and $1.0million for the nine months ended September 30, 2016 and 2015, respectively, due to the amortization of net intangible liabilities resulting from the above-market and below-market lease values.

Evaluation of asset impairment

The Company evaluates its assets used in operations for impairment by identifying indicators of impairment and by comparing the sum of the estimated undiscounted future cash flows for each asset to the asset’s carrying value. When indicators of impairment are present and the sum of the estimated undiscounted future cash flows is less than the carrying value of such asset, an impairment loss is recorded equal to the difference between the asset’s current carrying value and its value based on discounting its estimated future cash flows. In addition, the Company evaluates its assets held for disposition for impairment. Assets held for disposition are reported at the lower of their carrying value or fair value, less cost of disposition. At September 30, 2016, the Company did not consider any assets to be impaired.

Stock compensation

All share-based payments to employees, including grants of employee stock options, are recognized as stock compensation in the Company’s income statement based on their grant date fair values. See Note 12.

Revenue and expense recognition

The Company must meet four basic criteria before revenue can be recognized: persuasive evidence of an arrangement exists; the delivery has occurred or services have been rendered; the fee is fixed or determinable; and collectability is reasonably assured. All leases are classified as operating leases. Rental income is recognized on a straight-line basis over the terms of the leases. Straight-line rent is recognized for all tenants with contractual fixed increases in rent that are not included on the Company’s credit watch list. Deferred rent receivable represents rental revenue recognized on a straight-line basis in excess of billed rents. Reimbursements from tenants for real estate taxes and other recoverable operating expenses are recognized as rental income in the period the applicable costs are incurred. Property management fees are recognized in the period earned.

Costs incurred in connection with leasing (primarily tenant improvements and lease commissions) are capitalized and amortized over the lease period.

Gains from sales of real estate facilities

The Company recognizes gains from sales of real estate facilities at the time of sale using the full accrual method, provided that various criteria related to the terms of the transactions and any subsequent involvement by the Company with the properties sold are met. If the criteria are not met, the Company defers the gains and recognizes them when the criteria are met or uses the installment or cost recovery methods as appropriate under the circumstances.

General and administrative expenses

General and administrative expenses include executive and other compensation, office expenses, professional fees, acquisition transaction costs, state income taxes and other such administrative items.

Income taxes

The Company has qualified and intends to continue to qualify as a REIT, as defined in Section 856 of the Internal Revenue Code of 1986, as amended. As a REIT, the Company is not subject to federal income tax to the extent that it distributes its REIT taxable income to its shareholders. A REIT must distribute at least 90% of its taxable income each

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year. In addition, REITs are subject to a number of organizational and operating requirements. The Company may be subject to certain state and local taxes on its income and property and to federal income and excise taxes on its undistributed taxable income. The Company believes it met all organization and operating requirements to maintain its REIT status during 2015 and intends to continue to meet such requirements for 2016. Accordingly, no provision for income taxes has been made in the accompanying consolidated financial statements.

The Company can recognize a tax benefit only if it is “more likely than not” that a particular tax position will be sustained upon examination or audit. To the extent that the “more likely than not” standard has been satisfied, the benefit associated with a position is measured as the largest amount that is greater than 50% likely of being recognized upon settlement. As of September 30, 2016, the Company did not recognize any tax benefit for uncertain tax positions.

Accounting for preferred equity issuance costs

The Company records issuance costs as a reduction to paid-in capital on its balance sheet at the time the preferred securities are issued and reflects the carrying value of the preferred equity at the stated value. Such issuance costs are recorded as non-cash preferred equity distributions at the time the Company notifies the holders of preferred stock of its intent to redeem such shares.

Net income allocation

Net income was allocated as follows (in thousands):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to noncontrolling interests:
Noncontrolling interests—common units	$	5,315	$	6,087	$	13,495	$	14,467
Total net income allocable to noncontrolling interests		5,315		6,087		13,495		14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders
Distributions to preferred shareholders		13,833		15,122		41,498		45,366
Non-cash distributions related to the redemption of
preferred stock		—		2,487		—		2,487
Total net income allocable to preferred shareholders		13,833		17,609		41,498		47,853
Restricted stock unit holders		128		97		387		237
Common shareholders		19,718		22,484		50,017		53,384
Total net income allocable to PS Business Parks, Inc.		33,679		40,190		91,902		101,474
Net income	$	38,994	$	46,277	$	105,397	$	115,941

Net income per common share

Per share amounts are computed using the number of weighted average common shares outstanding. “Diluted” weighted average common shares outstanding includes the dilutive effect of stock options and restricted stock units under the treasury stock method. “Basic” weighted average common shares outstanding excludes such effect. The Company's restricted stock units are participating securities and are included in the computation of basic and diluted weighted average common shares outstanding. The Company’s restricted stock unit holders are paid non-forfeitable dividends in excess of the expenserecorded which results in a reduction in net income allocable to common shareholders and unit holders.

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Earnings per share has been calculated as follows (in thousands, except per share amounts):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to common shareholders	$	19,718	$	22,484	$	50,017	$	53,384
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		27,103		26,985		27,076		26,956
Net effect of dilutive stock compensation—based on
treasury stock method using average market price		98		64		90		78
Diluted weighted average common shares outstanding		27,201		27,049		27,166		27,034
Net income per common share—Basic	$	0.73	$	0.83	$	1.85	$	1.98
Net income per common share—Diluted	$	0.72	$	0.83	$	1.84	$	1.97

No options were excluded from the computation of diluted net income per share for the three months ended September 30, 2016as no options were considered anti-dilutive. Options to purchase 25,000 shares were excluded from the computation of diluted net income per share for the nine months ended September 30, 2016as such options were considered anti-dilutive.Options to purchase 46,000 shares were excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2015as such options were considered anti-dilutive.

Segment reporting

The Company views its operations as one segment.

Reclassifications

Certain reclassifications have been made to the consolidated financial statements for 2015 in order to conform to the 2016 presentation.

Recently issued accounting standards

In May, 2014, the Financial Accounting Standards Board(“FASB”) issued Accounting Standard Update (“ASU”) 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. The new accounting guidance establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. This guidance is currently effective for the Company’s fiscal year beginning January 1, 2018. Early adoption is permitted for the Company’s fiscal year beginning January 1, 2017. The amendment allows for full retrospective adoption applied to all periods presented or modified retrospective adoption with the cumulative effect of initially applying the standard recognized at the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In August, 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern for a period of one year after the date that the financial statements are issued. This guidance is effective for annual periods ending after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Company anticipates no impact upon adoption of the new accounting guidance on its consolidated financial statements.

In February, 2015, the FASB issued ASU 2015-02, Consolidation – Amendments to the Consolidation Analysis, which amended the existing accounting standards for consolidation under both the variable interest model and the voting model. On January 1, 2016, the Company adopted this guidance and as the Operating Partnership is already

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consolidated in the balance sheets of the Company, the identification of this entity as a VIE has no impact on the consolidated financial statements of the Company. Additionally, the Company’s accounting for its investment in its joint venture was not impacted by the adoption of this guidance.

In February, 2016, the FASB issued ASU 2016-02, Leases, which amends the existing accounting standards for lease accounting. The accounting applied by a lessor is largely unchanged under this guidance. However, the guidance requires lessees to recognize assets and liabilities for most leases on the balance sheet. This guidance is effective for annual periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted. The guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In March, 2016, the FASB issued ASU 2016-09,  Improvements to Employee Share-Based Payment Accounting, to amend the accounting guidance for share-based payment accounting. The guidance is intended to simplify the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods and early adoption is permitted. The Company is currently assessing the impact of the guidance on its consolidated financial statements.

3. Real estate facilities

The activity in real estate facilities for the nine months ended September 30, 2016 is as follows (in thousands):

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2015	$	793,569	$	2,215,515	$	(1,082,603)	$	1,926,481
Acquisition of real estate facilities		5,638		7,637		—		13,275
Capital expenditures, net		—		25,954		—		25,954
Disposals		—		(10,302)		10,302		—
Depreciation and amortization		—		—		(74,886)		(74,886)
Balances at September 30, 2016	$	799,207	$	2,238,804	$	(1,147,187)	$	1,890,824

The purchase price of acquired properties is recorded to land, buildings and improvements (including tenant improvements, unamortized lease commissions, acquired in-place lease values, and tenant relationships, if any) and intangible assets and liabilities associated with the value of above-market and below-market leases based on their respective estimated fair values. Acquisition-related costs are expensed as incurred.

In determining the fair value of the tangible assets of the acquired properties, management considers the value of the properties as if vacant as of the acquisition date. Management must make significant assumptions in determining the value of assets acquired and liabilities assumed. Using different assumptions in the recording of the purchase cost of the acquired properties would affect the timing of recognition of the related revenue and expenses. Amounts recorded to land are derived from comparable sales of land within the same region. Amounts recorded to buildings and improvements, tenant improvements and unamortized lease commissions are based on current market replacement costs and other market information. The amount recorded to acquired in-place leases is determined based on management’s assessment of current market conditions and the estimated lease-up periods for the respective spaces.

On September 28, 2016, the Company acquiredtwomulti-tenant office buildings  aggregating226,000 square feet  in Rockville, Maryland, for a purchase price of $13.3 million.The buildings are located within Shady Grove Executive Park, where the Company owns threeother buildings comprised of 352,000 square feet.

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The following table summarizes the assets acquired and liabilities assumed for the nine months ended September 30, 2016 (in thousands):

	2016
Land	$	5,638
Buildings and improvements		7,637
Below-market in-place lease value		(25)
Total purchase price		13,250
Net operating assets acquired and liabilities assumed		(622)
Total cash paid	$	12,628

During the nine months ended September 30, 2015,  the Company completed the sale of assets in Tempe, Arizona, Sacramento, California, Milwaukie, Oregon and Redmond, Washington. The assets soldaggregated574,000 square feet and generated net proceeds of $55.2 million, which resulted in an aggregate gain of $28.2 million.

4. Investment in and advances to unconsolidated joint venture

In 2013, the Company entered into a joint venture known as Amherst JV LLC (the “Joint Venture”), in which it has a 95.0% economic interest, with an unrelated real estate development company for the purpose of developing a 395-unit multi-family building on a five-acre site within its Westpark Business Park in Tysons, Virginia. The Company contributed the site, along with capitalized improvements, to the Joint Venture on October 5, 2015. Demolition, site preparation and construction commenced in October, 2015. The Company’s partner in the Joint Venture serves as the managing member, with mutual consent from both the Company and the managing member required for all significant decisions. As such, the Company accounts for its investment in the Joint Venture using the equity method.

Along with the equity capital the Company has committed to the Joint Venture, the Company has also agreed to provide the Joint Venture with a construction loan in the amount of $75.0 million. The Joint Venture will pay interest under the construction loan at a rate equal to the London Interbank Offered Rate (“LIBOR”) plus 2.25%. The loan will mature on April 5, 2019. The Company has reflected the aggregate value of the contributed site, its’ equity contributions, capitalized interest and loan advances to date as investment in and advances to unconsolidated joint venture. The aggregate amount of development costs are estimated to be $105.6 million (excluding unrealized land appreciation), of which the Company is committed to funding $75.0 million through a construction loan in addition to total equity and capital contributions of $28.5 million, which includes a land basis of $15.3 million, to the Joint Venture.

The Company’s investment in and advances to unconsolidated joint venture was $55.5 million and $26.7 million as of September 30, 2016 and December 31, 2015, respectively. For the nine months ended September 30, 2016, the Company made loan advances of $22.3 million, capital contributions of $5.7 million and capitalized $854,000of interest. For the nine months ended September 30, 2015, the Company capitalized costs of $2.8 million related to this development, of which $813,000was related to capitalized interest. The Company made no loan advances to the Joint Venture in 2015.

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5. Leasing activity

The Company leases space in its real estate facilities to tenants primarily under non-cancelable leases generally ranging from one to 10 years. Future minimum rental revenues, excluding recovery of operating expenses under these leases, are as follows as of September 30, 2016(in thousands):

2016	$	73,197
2017		257,375
2018		193,217
2019		130,527
2020		84,301
Thereafter		157,499
Total	$	896,116

In addition to minimum rental payments, certain tenants reimburse the Company for their pro rata share of specified operating expenses. Such reimbursements amounted to $20.3 million and $19.5 million for the three months ended September 30, 2016 and 2015, respectively, and $61.6 million and $59.5 million for the nine months ended September 30, 2016 and 2015, respectively. These amounts are included as rental income in the accompanying consolidated statements of income.

Leases accounting for 3.3% of total leased square footage are subject to termination options, of which 1.5% of total leased square footage have termination options exercisable through December 31, 2016. In general, these leases provide for termination payments should the termination options be exercised. The future minimum rental revenues in the above table assume such options are not exercised.

6. Bank loans

The Company has a line of credit (the “Credit Facility”) with Wells Fargo Bank, National Association (“Wells Fargo”). The Credit Facility has a borrowing limit of $250.0 million and expires May 1, 2019. The rate of interest charged on borrowings is based on the LIBOR plus 0.875% to LIBOR plus 1.70% depending on the Company’s credit ratings. Currently, the Company’s rate under the Credit Facility is LIBOR plus 0.875%. In addition, the Company is required to pay an annual facility fee ranging from 0.125% to 0.30% of the borrowing limit depending on the Company’s credit ratings (currently 0.125%). As of September 30, 2016, the Company had $60.0 million outstanding on the Credit Facility at an interest rate of 1.36%.  Subsequent to September 30, 2016, the Company repaid the outstanding balance in full. The Company had no balance outstanding on the Credit Facility at December 31, 2015. The Company had $596,000and $769,000 of unamortized commitment fees as of September 30, 2016 and December 31, 2015, respectively, which is included in other assets in the accompanying consolidated balance sheets. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance with as of September 30, 2016. Interest on outstanding borrowings is payable monthly.  

7. Mortgage note payable

On June 1, 2016, the Company repaid in full the $250.0 million mortgage note which had a fixed interest rate of 5.45%.

8. Noncontrolling interests

As described in Note 2, the Company reports noncontrolling interests within equity in the consolidated financial statements, but separate from the Company’s shareholders’ equity. In addition, net income allocable to noncontrolling interests is shown as a reduction from net income in calculating net income allocable to common shareholders.

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Common partnership units

The Company presents the accounts of PSB and the Operating Partnership on a consolidated basis. Ownership interests in the Operating Partnership that can be redeemed for common stock, other than PSB’s interest, are classified as noncontrolling interests—common units in the consolidated financial statements. Net income allocable to noncontrolling interests—common units consists of the common units’ share of the consolidated operating results after allocation to preferred units and shares. Beginning one year from the date of admission as a limited partner (common units) and subject to certain limitations described below, each limited partner other than PSB has the right to require the redemption of its partnership interest.

A limited partner (common units) that exercises its redemption right will receive cash from the Operating Partnership in an amount equal to the market value (as defined in the Operating Partnership Agreement) of the partnership interests redeemed. In lieu of the Operating Partnership redeeming the common units for cash, PSB, as general partner, has the right to elect to acquire the partnership interest directly from a limited partner exercising its redemption right, in exchange for cash in the amount specified above or by issuance of one share of PSB common stock for each unit of limited partnership interest redeemed.

A limited partner (common units) cannot exercise its redemption right if delivery of shares of PSB common stock would be prohibited under the applicable articles of incorporation, or if the general partner believes that there is a risk that delivery of shares of common stock would cause the general partner to no longer qualify as a REIT, would cause a violation of the applicable securities laws, or would result in the Operating Partnership no longer being treated as a partnership for federal income tax purposes.

At September 30, 2016, there were 7,305,355 common units owned by PS, which are accounted for as noncontrolling interests. Combined with PS’s existing common stock ownership, on a fully converted basis, PS has a combined ownership of 42.0% (or 14.5 million shares) of the Company’s common equity.

9. Related party transactions

The Operating Partnership manages industrial, office and retail facilities for PS. These facilities, all located in the United States, operate under the “Public Storage” or “PS Business Parks” names. The PS Business Parks name and logo are owned by PS and licensed to the Company under a non-exclusive, royalty-free license agreement. The license can be terminated by either party for any reason with six months written notice.

Under the property management contract with PS, the Operating Partnership is compensated based on a percentage of the gross revenues of the facilities managed. Under the supervision of the property owners, the Operating Partnership coordinates rental policies, rent collections, marketing activities, the purchase of equipment and supplies, maintenance activities, and the selection and engagement of vendors, suppliers and independent contractors. In addition, the Operating Partnership assists and advises the property owners in establishing policies for the hire, discharge and supervision of employees for the operation of these facilities, including property managers and leasing, billing and maintenance personnel.

The property management contract with PS is for a seven-year term with the agreement automatically extending for an additional one-year period upon each one-year anniversary of its commencement (unless cancelled by either party). Either party can give notice of its intent to cancel the agreement upon expiration of its current term. Management fee revenues under this contract were $130,000 for the three months ended September 30, 2016 and 2015 and $389,000 and $410,000 for the nine months ended September 30, 2016 and 2015, respectively.

PS also provides property management services for the self-storage component of two assets owned by the Company. These self-storage facilities, located in Palm Beach County, Florida, operate under the “Public Storage” name.

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Under the property management contract, PS is compensated based on a percentage of the gross revenues of the facilities managed. Under the supervision of the Company, PS coordinates rental policies, rent collections, marketing activities, the purchase of equipment and supplies, maintenance activities, and the selection and engagement of vendors, suppliers and independent contractors. In addition, PS is responsible for establishing the policies for the hire, discharge and supervision of employees for the operation of these facilities, including on-site managers, assistant managers and associate managers.

Either the Company or PS can cancel the property management contract upon 60 days’ notice. Management fee expenses under the contract were $22,000and $21,000for the three months ended September 30, 2016 and 2015, respectively, and $64,000 and$59,000 for the nine months ended September 30, 2016 and 2015, respectively.  

Pursuant to a cost sharing and administrative services agreement, the Company shares costs with PS for certain administrative services and rental of corporate office space, which are allocated to PS in accordance with a methodology intended to fairly allocate those costs. These costs totaled $123,000 and  $117,000 for the three months ended September 30, 2016 and 2015, respectively,  and $370,000 and$352,000 for the nine months ended September 30, 2016 and 2015, respectively.

The Company had net amounts due to PS of $131,000 atSeptember 30, 2016 and due from PS of $57,000 atDecember 31, 2015, respectively, for these contracts, as well as for certain operating expenses paid by the Company on behalf of PS.

10. Shareholders’ equity

Preferred stock

As of September 30, 2016 and December 31, 2015, the Company had the following series of preferred stock outstanding:

		Earliest Potential	Dividend	Shares	Amount
Series	Issuance Date	Redemption Date	Rate	Outstanding	(in thousands)
Series S	January, 2012	January, 2017	6.450%	9,200	$	230,000
Series T	May, 2012	May, 2017	6.000%	14,000		350,000
Series U	September, 2012	September, 2017	5.750%	9,200		230,000
Series V	March, 2013	March, 2018	5.700%	4,400		110,000
Total				36,800	$	920,000

On October 20, 2016, the Company issued $189.8 million or 7,590,000 depositary shares, each representing 1/1,000 of a share of the 5.20% Cumulative Preferred Stock, Series W, at $25.00 per depositary share.  The 5.20% Series W Cumulative Redeemable Preferred Units are non-callable for five years and have no mandatory redemption.

During the three months ended September 30, 2015, the Company called for the redemption of its 6.875% Cumulative Preferred Stock, Series R, at its par value of $75.0 million and subsequently completed the redemption on October 15, 2015. The Company reported the non-cash distributions of $2.5 million, representing the original issuance costs, as a reduction of net income allocable to common shareholders and unit holders for the three and nine months ended September 30, 2015.

The Company recorded $13.8 million and $17.6 million in distributions to its preferred shareholders for the three months ended September 30, 2016 and 2015, respectively, and $41.5 million and $47.9 million in distributions to its preferred shareholders for the nine months ended September 30, 2016 and 2015, respectively.

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Holders of the Company’s preferred stock will not be entitled to vote on most matters, except under certain conditions. In the event of a cumulative arrearage equal to six quarterly dividends, the holders of the preferred stock will have the right to elect two additional members to serve on the Company’s Board of Directors until all events of default have been cured. At September 30, 2016, there were no dividends in arrears.

Except under certain conditions relating to the Company’s qualification as a REIT, the preferred stock is not redeemable prior to the previously noted redemption dates. On or after the respective redemption dates, the respective series of preferred stock will be redeemable, at the option of the Company, in whole or in part, at $25.00 per depositary share, plus any accrued and unpaid dividends. The Company had $29.3 million of deferred costs in connection with the issuance of preferred stock as of September 30, 2016 and December 31, 2015, which the Company will report as additional non-cash distributions upon notice of its intent to redeem such shares.

Common stock

No shares of common stock were repurchased under the board-approved common stock repurchase program during either of the nine months ended September 30, 2016 and 2015.

The Company paid $20.3 million ($0.75 per common share) and $16.2 million ($0.60 per common share) in distributions to its common shareholders for the three months ended September 30, 2016 and 2015, respectively, and $60.9 million ($2.25 per common share) and $43.2 million ($1.60 per common share) in distributions to its common shareholders for the nine months ended September 30, 2016 and 2015, respectively.

Equity stock

In addition to common and preferred stock, the Company is authorized to issue 100.0 million shares of Equity Stock. The Articles of Incorporation provide that Equity Stock may be issued from time to time in one or more series and give the Board of Directors broad authority to fix the dividend and distribution rights, conversion and voting rights, redemption provisions and liquidation rights of each series of Equity Stock.

11. Commitments and contingencies

The Company currently is neither subject to any other material litigation nor, to management’s knowledge, is any material litigation currently threatened against the Company other than routine litigation and administrative proceedings arising in the ordinary course of business.

12. Stock compensation

PSB has a 2003 Stock Option and Incentive Plan (the “2003 Plan”) and a 2012 Equity and Performance-Based Incentive Compensation Plan (the “2012 Plan”) covering 1.5 million and 1.0 million shares of PSB’s common stock, respectively. Under the 2003 Plan and 2012 Plan, PSB has granted non-qualified options to certain directors, officers and key employees to purchase shares of PSB’s common stock at a price not less than the fair market value of the common stock at the date of grant. Additionally, under the 2003 Plan and 2012 Plan, PSB has granted restricted shares of common stock to certain directors and restricted stock units to officers and key employees.

The weighted average grant date fair value of options granted during the  nine months ended September 30, 2016 and 2015 was $9.05per share and $8.49 per share, respectively. The Company has calculated the fair value of each option grant on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions used for grants during the  nine months ended September 30, 2016 and 2015, respectively: a dividend yield of 2.9% and 2.5%; expected volatility of 15.5% and 16.1%; expected life of five years; and risk-free interest rates of 1.1% and 1.4%.

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The weighted average grant date fair value of restricted stock units granted during the nine months ended September 30, 2016and 2015 was $87.45 and$82.78, respectively. The Company calculated the fair value of each restricted stock unit grant using the market value on the date of grant.

At September 30, 2016, there was a combined total of 1.2million options and restricted stock units authorized to be granted.

Information with respect to outstanding options and nonvested restricted stock units granted under the 2003 Plan and 2012 Plan is as follows:

				Weighted		Aggregate
		Weighted		Average		Intrinsic
	Number of	Average		Remaining		Value
Options:	Options	Exercise Price		Contract Life		(in thousands)
Outstanding at December 31, 2015	258,674	$	60.76
Granted	39,000	$	102.58
Exercised	(49,882)	$	59.26
Forfeited	—	$	—
Outstanding at September 30, 2016	247,792	$	67.64	5.41 Years	$	11,380
Exercisable at September 30, 2016	169,498	$	57.69	4.00 Years	$	9,472

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2015	78,652	$	78.44
Granted	119,950	$	87.45
Vested	(47,779)	$	80.45
Forfeited	(5,430)	$	74.79
Nonvested at September 30, 2016	145,393	$	58.71

Effective March, 2014, the Company entered into a performance-based restricted stock unit program, the Senior Management Long-Term Equity Incentive Program for 2014-2017 (“LTEIP”), with certain employees of the Company. Under the LTEIP, the Company established three levels of targeted restricted stock unit awards for certain employees, which would be earned only if the Company achieved one of three defined targets during 2014 to 2017. Under the LTEIP there is an annual award following the end of each of the four years in the program, with the award subject to and based on the achievement of total returntargets during the previous year, as well as an award based on achieving total return targets during the cumulative four-year period 2014-2017. In the event the minimum defined target is not achieved for an annual award, the restricted stock units allocated to be awarded for such year are added to the restricted stock units that may be received if the four-year target is achieved. All restricted stock unit awards under the LTEIP vest in four equal annual installments beginning from the date of award. Up to 99,150 restricted stock units would be awarded for each of the four years assuming achievement was met and up to 92,900 restricted stock units would be awarded for the cumulative four-year period assuming achievement was met. Compensation expense is recognized based on the restricted stock units expected to be awarded based on the target level that is expected to be achieved. Net compensation expense of $1.6 million and $1.7 million related to the LTEIP was recognized during the three months ended September 30, 2016 and 2015, respectively, and $8.1 million and $6.2 million for the nine months ended September 30, 2016 and 2015, respectively.  Included in the 2016 year to date amount, the Company recorded a net non-cash stock compensation charge of $2.0 million during the second quarter of 2016 related to a change in senior management and the future issuance of restricted stock units our former Chief Executive Officer will receive under the Company’s LTEIP.

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In connection with theLTEIP, targets for 2015 were achieved at the highest threshold total return level. As such, 99,150 restricted stock units were granted during the nine months ended September 30, 2016 at a weighted average grant date fair value of $83.59.

Included in the Company’s consolidated statements of income for the three months ended September 30, 2016 and 2015, was $51,000 and $42,000, respectively, in net compensation expense related to stock options. Net compensation expense of $229,000 and $218,000 related to stock options was recognized during the nine months ended September 30, 2016 and 2015, respectively.  Net compensation expense of $1.7 million and $1.8 million related to restricted stock units was recognized during the three months ended September 30, 2016 and 2015, respectively. Net compensation expense of $8.5 million and $8.7 million related to restricted stock units was recognized during the nine months ended September 30, 2016 and 2015, respectively.

As of September 30, 2016, there was $588,000 of unamortized compensation expense related to stock options expected to be recognized over a weighted average period of 3.7 years. As of September 30, 2016, there was $15.3 million of unamortized compensation expense related to restricted stock units expected to be recognized over a weighted average period of 3.9 years.

Cash received from 49,882 stock options exercised during the nine months ended September 30, 2016 was $3.0 million. Cash received from 78,790 stock options exercised during the nine months ended September 30, 2015 was $4.0 million. The aggregate intrinsic value of the stock options exercised was $2.4 million and $2.0 million during the nine months ended September 30, 2016 and 2015, respectively.

During the nine months ended September 30, 2016,  47,779 restricted stock units vested; in settlement of these units,  28,046 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the nine months ended September 30, 2016 was $4.7 million.During the nine months ended September 30, 2015, 25,384 restricted stock units vested; in settlement of these units, 15,734 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the nine months ended September 30, 2015 was $2.0 million.

In April, 2015, the shareholders of the Company approved the issuance of up to 130,000 shares of common stock under the Retirement Plan for Non-Employee Directors (the “Director Plan”). Under the Director Plan, the Company grants 1,000 shares of common stock for each year served as a director up to a maximum of 8,000 shares issued upon retirement. The Company recognizes compensation expense over the requisite service period. As a result, included in the Company’s consolidated statements of income was $85,000and $79,000 in compensation expense for the three months ended September 30, 2016 and 2015, respectively, and $254,000 and $237,000 for the nine months ended September 30, 2016 and 2015, respectively. As of September 30, 2016 and 2015, there was $972,000 and $1.3 million, respectively, of unamortized compensation expense related to these shares. In April, 2016, the Company issued 8,000 shares to a director upon retirement with an aggregate fair value of $775,000.  No shares were issued during the nine months ended September 30, 2015.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTSOF OPERATIONS

Forward-Looking Statements: Forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, are made throughout this Quarterly Report on Form 10-Q. For this purpose, any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the foregoing, the words “may,” “believes,” “anticipates,” “plans,” “expects,” “seeks,” “estimates,” “intends,” and similar expressions are intended to identify forward-looking statements. There are a number of important factors that could cause the results of the Company to differ materially from those indicated by such forward-looking statements, including but not limited to: (a) changes in general economic and business conditions; (b) decreases in rental rates or increases in vacancy rates/failure to renew or replace expiring leases; (c) tenant defaults; (d) the effect of the recent credit and financial market conditions; (e) our failure to maintain our status as a real estate investment trust (“REIT”); (f) the economic health of our tenants; (g) increases in operating costs; (h) casualties to our properties not covered by insurance; (i) the availability and cost of capital; (j) increases in interest rates and its effect on our stock price; and (k) other factors discussed under the heading “Part I, Item 1A. Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2015. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that our objectives and plans will be achieved. Moreover, we assume no obligation to update these forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting such forward-looking statements, except as required by law.

Overview

As of September 30, 2016, the Company owned and operated 28.2 million rentable square feet of multi-tenant flex, industrial and office properties concentrated primarily in six states. All operating metrics discussed in this section as of and for the three and nine months ended September 30, 2015exclude sold assets. Management believes excluding the results of such assets provides the most relevant perspective on the ongoing operations of the Company. Please refer to “Part I, Item 1. Financial Statements” included in this Quarterly Report on Form 10-Q for financial metrics that include results from sold assets.

The Company focuses on increasing profitability and cash flow aimed at maximizing shareholder value. The Company strives to maintain high occupancy levels while increasing rental rates and minimizing capital expenditures when market conditions allow, although the Company may decrease rental rates in markets where conditions require. The Company also acquires properties it believes will create long-term value, and from time to time disposes of properties which no longer fit within the Company’s strategic objectives. Operating results are driven primarily by income from rental operations and are therefore substantially influenced by demand for rental space within our properties and our markets, which impacts occupancy, rental rates and capital requirements.

During the first nine months of 2016, the Company executed leases comprising 5.5 million square feet of space including 3.8 million square feet of renewals of existing leases and 1.7 million square feet of new leases. Overall, the change in rental rates for the Company continued to improve. See further discussion of operating results below.

Critical Accounting Policies and Estimates: Our accounting policies are described in Note 2 to the consolidated financial statements included in this Quarterly Report on Form 10-Q. We believe our most critical accounting policies relate to revenue recognition, property acquisitions, allowance for doubtful accounts, impairment of long-lived assets, depreciation, accruals of operating expenses and accruals for contingencies, each of which are more fully described in “Part I, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our annual report on Form 10-K for the year ended December 31, 2015.  

Effect of Economic Conditions on the Company’s Operations: During the first nine months of 2016, most markets continued to reflect favorable conditions allowing for stable and improving occupancy as well as increasing rental rates. With the exception of the Virginia and Maryland markets, new rental rates for the Company improved

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over expiring rental rates on executed leases as economic conditions and tenant demand remained healthy. The Virginia and Maryland markets continue to experience soft market conditions as evidenced by continued pressure on occupancy and rental rates. In these markets, rental rates on executed leases declined 7.7% and 5.2%, respectively, over expiring rents for the nine months ended September 30, 2016. Given lease expirations of 1.2 million square feet in Virginia and 418,000 square feet in Maryland through December 31, 2017, the Company may continue to experience a decrease in rental income in these markets.

Tenant Credit Risk: The Company historically has experienced a low level of write-offs of uncollectable rents, but there is inherent uncertainty in a tenant’s ability to continue paying rent and meet its full lease obligation. The table below summarizes the impact to the Company from tenants’ inability to pay rent or continue to meet their lease obligations (in thousands):

	For The Nine Months
	Ended September 30,
	2016		2015
Write-offs of uncollectible rent	$	457	$	584
Write-offs as a percentage of rental income		0.2%		0.2%
Square footage of leases terminated prior to their scheduled expiration
due to business failures/bankruptcies		281		415
Accelerated depreciation and amortization related to unamortized tenant improvements
and lease commissions associated with early terminations	$	438	$	539

As of October 24, 2016, the Company had 12,000 square feet of leased space occupied by tenants that are protected by Chapter 11 of the U.S. Bankruptcy Code. From time to time, tenants contact us, requesting early termination of their lease, reductions in space under lease, or rent deferment or abatement. At this time, the Company cannot anticipate what impact, if any, the ultimate outcome of these discussions will have on our future operating results.

Company Performance and Effect of Economic Conditions on Primary Markets: During the nine months ended September 30, 2016, initial rental rates on new and renewed leases within the Company’s total portfolio increased 5.2% over expiring rents, an improvement from the year ended December 31, 2015 in which initial rental rates on new and renewed leases increased 4.4%. The Company’s Same Park (defined below) occupancy rate at September 30, 2016 was 94.5%, compared to 93.7% at September 30, 2015. The Company’s operations are substantially concentrated in eight regions. Each of the eight regions in which the Company owns assets is subject to its own unique market influences. See “Supplemental Property Data and Trends” below for more information on regional operating data.

Effect of Acquisitions and Dispositions ofProperties on the Company’s Operations: The Company is focused on growing its operations by looking for opportunities to expand its presence in existing and new markets through strategic acquisitions that meet the Company’s focus on multi-tenant flex, industrial and office parks in markets where it has or may obtain a substantial market presence. The Company may also from time to time dispose of assets based on market conditions.

On September 28, 2016, the Company acquired two multi-tenant office buildings aggregating 226,000 square feet in Rockville, Maryland, for a purchase price of $13.3 million. The buildings, which were 18.5% leased at the time of acquisition, are located within Shady Grove Executive Park, where the Company owns three other buildings comprised of 352,000 square feet, which were 86.4% leased as of September 30, 2016.

22

As of September 30, 2016, the blended occupancy rate of the six assets acquired during 2014 and 2016, which comprise the 904,000 square feet of Non-Same Park portfolio (defined below), was 78.5% compared to a blended occupancy rate of 39.7% at the time of acquisition. The table below contains the assets acquired during 2014 and 2016(dollars and square feet in thousands):

					Square	Occupancy at	Occupancy at
Property	Date Acquired	Location	Purchase Price		Feet	Acquisition	September 30, 2016
Shady Grove	September, 2016	Rockville, Maryland	$	13,250	226	18.5%	18.5%
Charcot Business Park II	December, 2014	San Jose, California		16,000	119	96.7%	97.3%
McNeil 1	November, 2014	Austin, Texas		10,550	246	53.3%	100.0%
Springlake Business
Center II	August, 2014	Dallas, Texas		5,148	145	35.4%	95.2%
Arapaho Business Park 9	July, 2014	Dallas, Texas		1,134	19	100.0%	100.0%
MICC—Center 23	July, 2014	Miami, Florida		12,725	149	0.0%	100.0%
Total			$	58,807	904	39.7%	78.5%

During the nine months ended September 30, 2015, the Company completed the sale of assets in Tempe, Arizona, Sacramento, California, Milwaukie, Oregon and Redmond, Washington. The assets sold aggregated574,000 square feet and generated net proceeds of $55.2 million, which resulted in an aggregate gain of $28.2 million.

In 2013, the Company entered into a joint venture, in which it will maintain 95.0% economic interest, known as Amherst JV LLC, (the “Joint Venture”) with an unrelated real estate development company for the purpose of developing a 395-unit multi-family building on a five-acre site, to be known as Highgate, within its Westpark Business Park in Tysons, Virginia. The Company contributed the site, along with capitalized improvements, to the Joint Venture on October 5, 2015. Subsequent to the contribution date, demolition, site preparation and construction commenced and is expected to be completed in late 2017.

Along with the equity capital the Company has committed to the Joint Venture, the Company has also agreed to provide the Joint Venture with a construction loan in the amount of $75.0 million. The Joint Venture will pay interest under the construction loan at a rate equal to the London Interbank Offered Rate (“LIBOR”) plus 2.25%. The loan will mature on April 5, 2019. The aggregate amount of development costs are estimated to be $105.6 million (excluding unrealized land appreciation), of which the Company is committed to funding $75.0 million through a construction loan in addition to total equity and capital contributions of $28.5 million, which includes a land basis of $15.3 million, to the Joint Venture.

The Company’s investment in and advances to unconsolidated joint venture was $55.5 million and $26.7 million at September 30, 2016 and December 31, 2015, respectively. For the nine months ended September 30, 2016, the Company made loan advances of $22.3 million, capital contributions of $5.7 million and capitalized $854,000of interest. For the nine months ended September 30, 2015, the Company capitalized costs of $2.8 million related to this development, of which $813,000 was capitalized interest. The Company made no loan advances to the Joint Venture in 2015.

Scheduled Lease Expirations: In addition to the 1.7 million square feet, or 6.0%, of vacancy in our total portfolio as of September 30, 2016,  557 leases,  representing 1.4 million square feet, or 5.3%, of the leased square footage of our total portfolio are scheduled to expire during the remainder of 2016. Our ability to re-lease available space will depend upon market conditions in the specific submarkets in which our properties are located. As a result, we cannot predict with certainty the rate at which expiring leases will be re-leased.

Impact of Inflation: Although inflation has not been significant in recent years, it remains a potential factor in our economy, and the Company continues to seek ways to mitigate its potential impact. A substantial portion of the Company’s leases require tenants to pay operating expenses, including real estate taxes, utilities, and insurance, as well as increases in common area expenses, partially reducing the Company’s exposure to inflation.

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Net Operating Income: Rental income, cost of operations and rental income less cost of operations, excluding depreciation and amortization, or net operating income (defined as “NOI” for purposes of the following tables), are summarized for the three and nine months ended September 30, 2016 and 2015.  NOI is a non-GAAP financial measure that is often used by investors to determine the performance and value of commercial real estate.  Depreciation and amortization have been excluded from NOI as they are generally not used in determining the value of commercial real estate by management or the investment community. Depreciation and amortization are generally not used in determining value as they consider the historical costs of an asset compared to its current value; therefore, to understand the effect of the assets’ historical cost on the Company’s results, investors should look at GAAP financial measures, such as total operating costs including depreciation and amortization. The Company’s calculation of NOI may not be comparable to those of other companies and should not be used as an alternative to measures of performance calculated in accordance with GAAP. As part of the tables below, we have reconciled total NOI to net income, which we consider the most directly comparable financial measure calculated in accordance with GAAP.

In order to provide a meaningful period-to-period comparison, for the purpose of computing NOI, the tables below exclude amortization of the Senior Management Long-Term Equity Incentive Plan (“LTEIP”).

Concentration of Portfolio by Region: The table below reflects the Company’s square footage based on regional concentration as of September 30, 2016. As part of the table below, we have reconciled total NOI to net income (in thousands):

		Percent of	NOI
	Square	Square	For The Nine Months		Percent
Region	Footage	Footage	Ended September 30, 2016		of Total NOI
California
Northern California	7,245	25.7%	$	47,687	24.0%
Southern California	3,988	14.1%		30,926	15.6%
Texas
Northern Texas	3,125	11.1%		15,168	7.6%
Southern Texas	1,963	7.0%		13,544	6.8%
Virginia	4,040	14.3%		39,801	20.0%
Florida	3,866	13.7%		20,384	10.3%
Maryland	2,578	9.2%		22,853	11.5%
Washington	1,390	4.9%		8,253	4.2%
Total	28,195	100.0%	$	198,616	100.0%
Reconciliation of NOI to net income
Total NOI			$	198,616
Other income and (expenses):
LTEIP amortization:
Cost of operations				(2,312)
General and administrative				(5,804)
Lease buyout payment (1)				528
Facility management fees				389
Interest and other income				551
Interest and other expenses				(5,507)
Depreciation and amortization				(74,886)
Acquisition transaction costs				(328)
Adjusted general and administrative (2)				(5,850)
Net income			$	105,397

____________________________

⁽¹⁾ Represents a material lease buyout payment recorded in the third quarter of 2016 associated with a 58,000 square foot lease in Northern Virginia, which was terminated pursuant to an option as of the beginning of the third quarter of 2016.

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⁽²⁾ Adjusted general and administrative expenses exclude LTEIP amortization of $5.8 million and acquisition transaction costs of $328,000 for the nine months ended September 30, 2016.

Concentration of Credit Risk by Industry: The information below depicts the industry concentration of our tenant base as of September 30, 2016.  The Company analyzes this concentration to minimize significant industry exposure risk.

	Percent of
	Annualized
Industry	Rental Income
Business services	18.2%
Warehouse, distribution, transportation and logistics	10.4%
Computer hardware, software and related services	9.9%
Health services	9.7%
Government	8.9%
Retail, food, and automotive	7.4%
Engineering and construction	6.8%
Insurance and financial services	4.2%
Electronics	3.1%
Home furnishings	3.0%
Aerospace/defense products and services	2.7%
Communications	2.2%
Educational services	1.8%
Other	11.7%
Total	100.0%

The information below depicts the Company’s top 10 customers by annualized rental income as of September 30, 2016(in thousands):

				Percent of
		Annualized		Annualized
Tenants	Square Footage	Rental Income (1)		Rental Income
US Government	815	$	18,108	4.7%
Kaiser Permanente	199		4,709	1.2%
Lockheed Martin Corporation	168		4,500	1.2%
Keeco, L.L.C.	460		3,458	0.9%
Luminex Corporation	185		3,255	0.8%
MAXIMUS, Inc.	102		2,044	0.5%
KZ Kitchen Cabinet & Stone	181		1,860	0.5%
Investorplace Media, LLC	46		1,775	0.5%
Kuehne + Nagel, Inc.	163		1,775	0.5%
Inova Health Care Services	63		1,739	0.5%
Total	2,382	$	43,223	11.3%

____________________________

⁽¹⁾ For leases expiring prior to September 30, 2017, annualized rental income represents income to be received under existing leases from October 1, 2016 through the date of expiration.

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Comparative Analysis of the Three and Nine Months Ended September 30, 2016 to the Three and Nine Months Ended September 30, 2015

Results of Operations: In order to evaluate the performance of the Company’s portfolio over comparable periods, management analyzes the operating performance of properties owned and operated throughout both periods (herein referred to as “Same Park”). The Same Park portfolio includes all operating properties acquired prior to January 1, 2014. Operating properties acquired subsequently are referred to as “Non-Same Park.” For the three and nine months ended September 30, 2016 and 2015, the Same Park facilities constitute 27.3 million rentable square feet, representing 96.8% of the 28.2 million square feet in the Company’s total portfolio as of September 30, 2016.

The following table presents the operating results of the Company’s properties for the three and nine months ended September 30, 2016 and 2015 in addition to other income and expenses items affecting net income (inthousands, except per square foot data):

	For The Three Months					For The Nine Months
	Ended September 30,					Ended September 30,
	2016		2015		Change	2016		2015		Change
Adjusted rental income:
Same Park (27.3 million rentable square feet)	$	95,080	$	91,625	3.8%	$	283,661	$	272,189	4.2%
Non-Same Park (904,000 rentable square feet)		1,732		1,352	28.1%		5,083		3,685	37.9%
Total adjusted rental income (1)		96,812		92,977	4.1%		288,744		275,874	4.7%
Adjusted cost of operations:
Same Park		29,607		29,439	0.6%		88,564		87,637	1.1%
Non-Same Park		532		522	1.9%		1,564		1,577	(0.8%)
Total adjusted cost of operations (2)		30,139		29,961	0.6%		90,128		89,214	1.0%
Net operating income
Same Park		65,473		62,186	5.3%		195,097		184,552	5.7%
Non-Same Park		1,200		830	44.6%		3,519		2,108	66.9%
Total net operating income		66,673		63,016	5.8%		198,616		186,660	6.4%
Other income and (expenses):
NOI from sold assets		—		142	(100.0%)		—		1,469	(100.0%)
LTEIP amortization:
Cost of operations		(657)		(284)	131.3%		(2,312)		(1,795)	28.8%
General and administrative		(907)		(1,383)	(34.4%)		(5,804)		(4,383)	32.4%
Lease buyout payment		528		—	100.0%		528		—	100.0%
Facility management fees		130		130	—		389		410	(5.1%)
Other income and expenses		(79)		(3,214)	(97.5%)		(4,956)		(9,623)	(48.5%)
Depreciation and amortization		(24,631)		(25,985)	(5.2%)		(74,886)		(79,243)	(5.5%)
Adjusted general and administrative (3)		(1,735)		(1,893)	(8.3%)		(5,850)		(5,789)	1.1%
Acquisition transaction costs		(328)		—	(100.0%)		(328)		—	(100.0%)
Gain on sale of real estate facilities		—		15,748	(100.0%)		—		28,235	(100.0%)
Net income	$	38,994	$	46,277	(15.7%)	$	105,397	$	115,941	(9.1%)
Same Park gross margin (4)		68.9%		67.9%	1.5%		68.8%		67.8%	1.5%
Same Park weighted average occupancy		94.1%		93.6%	0.5%		93.9%		92.8%	1.2%
Non-Same Park weighted average occupancy		96.7%		85.6%	13.0%		95.6%		75.3%	27.0%
Same Park annualized realized rent per square foot (5)	$	14.81	$	14.35	3.2%	$	14.76	$	14.33	3.0%

____________________________

⁽¹⁾ Adjusted rental income excludes a material lease buyout payment of $528,000 recorded in the third quarter of 2016 and rental income from sold assets of $345,000 and $2.7 million for the three and nine months ended September 30, 2015, respectively.

⁽²⁾ Adjusted cost of operations excludes LTEIP amortization of $657,000 and $2.3 million for the three and nine months ended September 30, 2016, respectively, and $284,000 and $1.8 million for the three and nine months 26  

ended September 30, 2015, respectively, as well as, cost of operations from sold assets of $203,000 and $1.2 million for the three and nine months ended September 30, 2015, respectively.

⁽³⁾ Adjusted general and administrative expenses exclude LTEIP amortization of $907,000 and $5.8 million for the three and nine months ended September 30, 2016, respectively, and $1.4 million and $4.4 million for the three and nine months ended September 30, 2015, respectively, as well as, acquisition transaction costs of $328,000 recorded during the third quarter of 2016.

⁽⁴⁾ Computed by dividing Same Park NOI by Same Park rental income.

⁽⁵⁾ Represents the annualized Same Park rental income earned per occupied square foot.

Rental Income:Rental income increased $4.0 million from $93.3 million for the three months ended September 30, 2015 to $97.3 million for the three months ended September 30, 2016. Rental income increased $10.7 million from $278.6 million for the nine months ended September 30, 2015 to $289.3 million for the nine months ended September 30, 2016. For comparative purposes, management has adjusted rental income for a material lease buyout payment of $528,000 recorded in the third quarter of 2016 and rental income from sold assets of $345,000 and $2.7 million for the three and nine months ended September 30, 2015, respectively. Adjusted rental income increased $3.8 million from $93.0 million for the three months ended September 30, 2015 to $96.8 million for the three months ended September 30, 2016 as a result of an increase in the Same Park portfolio of $3.5million,or 3.8%, combinedwith a $380,000,  or 28.1%, increase from Non-Same Park facilities. Adjusted rental income increased $12.9 million from $275.9 million for the nine months ended September 30, 2015 to $288.7 million for the nine months ended September 30, 2016 as a result of an increase in the Same Park portfolio of $11.5 million, or 4.2%, combined with a $1.4 million,  or 37.9%, increase from Non-Same Park facilities. The three and nine month increases in Same Park rental income were due to an increase in occupancy and executed rental rates.

Facility Management Fees: Facility management fees, derived from Public Storage (“PS”), account for a small portion of the Company’s revenues. The Company recognized facility management fees of $130,000 for the three months ended September 30, 2016 and 2015. During the nine months ended September 30, 2016, the Company recognized facility management fees of$389,000compared to $410,000 for the same period in 2015.  The nine month decrease resulted from a reduction in total square footage managed on behalf of PS beginning the latter half of 2015.

Cost of Operations: Cost of operations increased $348,000, or 1.1%,  from $30.4 million for the three months ended September 30, 2015 to $30.8 million for the three months ended September 30, 2016. Cost of operations increased $189,000, or 0.2%, from $92.3 million for the nine months ended September 30, 2015 to $92.4 million for the nine months ended September 30, 2016. For comparative purposes, management has adjusted cost of operations for LTEIP amortization of $657,000 and $2.3 million for the three and nine months ended September 30, 2016, respectively, and $284,000 and $1.8 million for the three and nine months ended September 30, 2015, respectively, as well as, cost of operations from sold assets of $203,000 and $1.2 million for the three and nine months ended September 30, 2015, respectively. Adjusted cost of operations increased $178,000,  or 0.6%,  from $30.0 million for the three months ended September 30, 2015 to $30.1 million for the three months ended September 30, 2016as a result of an increasein the Same Park portfolio of $168,000,  or 0.6%, combined with a$10,000, or 1.9%, increase in the Non-Same Park facilities.  The three month increase in Same Park cost of operations was due to an increase in property taxes as a result of increases in assessed values partially offset by a decrease in compensation expense. Adjusted cost of operations increased $914,000, or 1.0%, from $89.2 million for the nine months ended September 30, 2015 to $90.1 million for the nine months ended September 30, 2016 as a result of an increase in the Same Park portfolio of $927,000,  or 1.1%, partially offset by a decrease in the Non-Same Park facilities of $13,000,  or 0.8%.The nine month increase was due to increases in property taxes and repairs and maintenance costs partially offset by a decrease in compensation expense.

Depreciation and Amortization Expense: Depreciation and amortization expense was $24.6 million for the three months ended September 30, 2016 compared to $26.0 million for the same period in 2015. Depreciation and amortization expense was $74.9 million for the nine months ended September 30, 2016 compared to $79.2 million for the same period in 2015. The three and nine month decreases in depreciation and amortization expense was due to the disposition of assets.

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General and Administrative Expenses: General and administrative expenses decreased $306,000, or 9.3%,  from $3.3 million for the three months ended September 30, 2015 to $3.0 million for the three months ended September 30, 2016. General and administrative expense increased $1.8 million, or 17.8%, from $10.2 million for the nine months ended September 30, 2015 to $12.0 million for the nine months ended September 30, 2016. For comparative purposes, management has adjusted general and administrative expenses forLTEIP amortization of $907,000 and $5.8 million for the three and nine months ended September 30, 2016, respectively, and $1.4 million and $4.4 million for the three and nine months ended September 30, 2015, respectively, as well as, acquisition transaction costs of $328,000 recorded during the third quarter of 2016. The nine month increase in the LTEIP amortization was primarily due to a net non-cash stock compensation chargeof $2.0 million recorded during the second quarter of 2016related to a change in senior management and the future issuances of restricted stock units our former Chief Executive Officer will receive under the Company’s LTEIP.  Adjusted general and administrative expenses decreased $158,000, or 8.3%,  for the three months ended September 30, 2016 over the same period in 2015 due to a decrease in compensation expense resulting from a change in senior management. Adjusted general administrative expenses increased $61,000, or 1.1%, for the nine months ended September 31, 2016 over the same period in 2015 due to acquisition and development costs partially offset by a decrease in compensation expense.

Net Income Allocable to Noncontrolling Interests: Net income allocable to noncontrolling interests reflects the net income allocable to equity interests in PS Business Parks, L.P. (the “Operating Partnership”) that are not owned by the Company. Net income allocable to noncontrolling interests was $5.3 million and $6.1 million of allocated income to common unit holders for the three months ended September 30, 2016 and 2015, respectively. Net income allocable to noncontrolling interests was $13.5 million and $14.5 million of allocated income to common unit holders for the nine months ended September 30, 2016 and 2015, respectively. The three andnine month decreases  were primarily the result of the gain on sale of real estate facilities recognized in 2015 partially offset by an increase in overall NOI.

Supplemental Property Data and Trends: NOI is summarized for the three and nine months ended September 30, 2016 and 2015 by region below. See above for more information on NOI, including why the Company presents NOI and how the Company uses NOI. The Company’s calculation of NOI may not be comparable to those of other companies and should not be used as an alternative to measures of performance calculated in accordance with GAAP.

The following tables summarize the Same Park and Non-Same Park operating results by region for the three and nine months ended September 30, 2016 and 2015. In addition, the tables reflect the comparative impact on the overall rental income, cost of operations and NOI from properties that have been acquired since January 1, 2014, and the impact of such is included in Non-Same Park facilities in the tables below. As part of the tables below, we have reconciled total NOI to net income (in thousands):

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Three Months Ended September 30, 2016 and 2015:

	Adjusted		Adjusted			Adjusted		Adjusted
	Rental		Rental			Cost of		Cost of
	Income		Income			Operations		Operations			NOI		NOI
	September 30,		September 30,		Increase	September 30,		September 30,		Increase	September 30,		September 30,		Increase
Region	2016		2015		(Decrease)	2016		2015		(Decrease)	2016		2015		(Decrease)
Same Park
Northern California	$	21,121	$	19,248	9.7%	$	5,637	$	5,461	3.2%	$	15,484	$	13,787	12.3%
Southern California		15,487		14,601	6.1%		4,978		4,903	1.5%		10,509		9,698	8.4%
Northern Texas		7,629		7,313	4.3%		2,748		2,639	4.1%		4,881		4,674	4.4%
Southern Texas		6,377		5,716	11.6%		2,217		2,103	5.4%		4,160		3,613	15.1%
Virginia		19,695		20,142	(2.2%)		6,677		6,294	6.1%		13,018		13,848	(6.0%)
Florida		9,309		8,803	5.7%		2,622		2,978	(12.0%)		6,687		5,825	14.8%
Maryland		11,694		12,124	(3.5%)		3,755		4,060	(7.5%)		7,939		8,064	(1.6%)
Washington		3,768		3,678	2.4%		973		1,001	(2.8%)		2,795		2,677	4.4%
Total Same Park		95,080		91,625	3.8%		29,607		29,439	0.6%		65,473		62,186	5.3%
Non-Same Park
Northern California		519		471	10.2%		136		132	3.0%		383		339	13.0%
Northern Texas		389		278	39.9%		124		142	(12.7%)		265		136	94.9%
Southern Texas		446		273	63.4%		177		132	34.1%		269		141	90.8%
Florida		369		330	11.8%		92		116	(20.7%)		277		214	29.4%
Maryland		9		—	100.0%		3		—	100.0%		6		—	100.0%
Total Non-Same Park		1,732		1,352	28.1%		532		522	1.9%		1,200		830	44.6%
Total	$	96,812	$	92,977	4.1%	$	30,139	$	29,961	0.6%	$	66,673	$	63,016	5.8%
Reconciliation of NOI to net income
Total NOI											$	66,673	$	63,016	5.8%
Other income and (expenses):
NOI from sold assets												—		142	(100.0%)
LTEIP amortization:
Cost of operations												(657)		(284)	131.3%
General and administrative												(907)		(1,383)	(34.4%)
Lease buyout payment												528		—	100.0%
Facility management fees												130		130	—
Other income and expenses												(79)		(3,214)	(97.5%)
Depreciation and amortization												(24,631)		(25,985)	(5.2%)
Acquisition transaction costs												(328)		—	(100.0%)
Adjusted general and administrative												(1,735)		(1,893)	(8.3%)
Gain on sale of real estate facilities												—		15,748	(100.0%)
Net income											$	38,994	$	46,277	(15.7%)

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NineMonths Ended September 30, 2016 and 2015:

	Adjusted		Adjusted			Adjusted		Adjusted
	Rental		Rental			Cost of		Cost of
	Income		Income			Operations		Operations			NOI		NOI
	September 30,		September 30,		Increase	September 30,		September 30,		Increase	September 30,		September 30,		Increase
Region	2016		2015		(Decrease)	2016		2015		(Decrease)	2016		2015		(Decrease)
Same Park
Northern California	$	62,959	$	57,176	10.1%	$	16,420	$	16,055	2.3%	$	46,539	$	41,121	13.2%
Southern California		45,104		43,741	3.1%		14,178		14,270	(0.6%)		30,926		29,471	4.9%
Northern Texas		22,565		21,778	3.6%		8,193		7,900	3.7%		14,372		13,878	3.6%
Southern Texas		19,360		15,981	21.1%		6,548		5,895	11.1%		12,812		10,086	27.0%
Virginia		59,931		60,719	(1.3%)		20,130		20,055	0.4%		39,801		40,664	(2.1%)
Florida		27,369		25,283	8.3%		7,822		7,931	(1.4%)		19,547		17,352	12.6%
Maryland		35,144		36,728	(4.3%)		12,297		12,669	(2.9%)		22,847		24,059	(5.0%)
Washington		11,229		10,783	4.1%		2,976		2,862	4.0%		8,253		7,921	4.2%
Total Same Park		283,661		272,189	4.2%		88,564		87,637	1.1%		195,097		184,552	5.7%
Non-Same Park
Northern California		1,542		1,379	11.8%		394		402	(2.0%)		1,148		977	17.5%
Northern Texas		1,190		731	62.8%		394		419	(6.0%)		796		312	155.1%
Southern Texas		1,236		669	84.8%		504		426	18.3%		732		243	201.2%
Florida		1,106		906	22.1%		269		330	(18.5%)		837		576	45.3%
Maryland		9		—	100.0%		3		—	100.0%		6		—	100.0%
Total Non-Same Park		5,083		3,685	37.9%		1,564		1,577	(0.8%)		3,519		2,108	66.9%
Total	$	288,744	$	275,874	4.7%	$	90,128	$	89,214	1.0%	$	198,616	$	186,660	6.4%
Reconciliation of NOI to net income
Total NOI											$	198,616	$	186,660	6.4%
Other income and (expenses):
NOI from sold assets												—		1,469	(100.0%)
LTEIP amortization:
Cost of operations												(2,312)		(1,795)	28.8%
General and administrative												(5,804)		(4,383)	32.4%
Lease buyout payment												528		—	100.0%
Facility management fees												389		410	(5.1%)
Other income and expenses												(4,956)		(9,623)	(48.5%)
Depreciation and amortization												(74,886)		(79,243)	(5.5%)
Adjusted general and administrative												(5,850)		(5,789)	1.1%
Acquisition transaction costs												(328)		—	(100.0%)
Gain on sale of real estate facilities												—		28,235	(100.0%)
Net income											$	105,397	$	115,941	(9.1%)

The following tables summarize Same Park weighted average occupancy rates and annualized realized rent per square foot by region for the three and nine months ended September 30, 2016 and 2015.  Annualized realized rent per square foot for Virginia and Total Same Park excludes a material lease buyout payment of $528,000 for the three and nine months ended September 30, 2016.

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Three Months Ended September 30, 2016 and 2015:

				Annualized Realized
	Weighted Average Occupancy Rates			Rent Per Square Foot
Region	2016	2015	Change	2016		2015		Change
Northern California	96.5%	95.7%	0.8%	$	12.29	$	11.29	8.9%
Southern California	95.5%	94.1%	1.5%	$	16.27	$	15.57	4.5%
Northern Texas	91.0%	88.8%	2.5%	$	11.32	$	11.12	1.8%
Southern Texas	97.7%	92.7%	5.4%	$	15.20	$	14.37	5.8%
Virginia	91.8%	91.7%	0.1%	$	21.22	$	21.73	(2.3%)
Florida	93.2%	95.2%	(2.1%)	$	10.74	$	9.95	7.9%
Maryland	87.6%	90.3%	(3.0%)	$	22.70	$	22.84	(0.6%)
Washington	98.9%	98.5%	0.4%	$	10.97	$	10.74	2.1%
Total Same Park	94.1%	93.6%	0.5%	$	14.81	$	14.35	3.2%

Nine Months Ended September 30, 2016 and 2015:

				Annualized Realized
	Weighted Average Occupancy Rates			Rent Per Square Foot
Region	2016	2015	Change	2016		2015		Change
Northern California	96.5%	95.8%	0.7%	$	12.21	$	11.17	9.3%
Southern California	94.5%	93.4%	1.2%	$	15.96	$	15.67	1.9%
Northern Texas	89.8%	88.0%	2.0%	$	11.31	$	11.14	1.5%
Southern Texas	97.2%	92.3%	5.3%	$	15.46	$	13.45	14.9%
Virginia	92.6%	91.1%	1.6%	$	21.36	$	21.98	(2.8%)
Florida	93.6%	93.1%	0.5%	$	10.49	$	9.74	7.7%
Maryland	87.9%	89.4%	(1.7%)	$	22.67	$	23.29	(2.7%)
Washington	98.5%	96.3%	2.3%	$	10.94	$	10.75	1.8%
Total Same Park	93.9%	92.8%	1.2%	$	14.76	$	14.33	3.0%

Liquidity and Capital Resources

Cash and cash equivalents decreased $183.9 million from $188.9 million at December 31, 2015 to $5.0 million at September 30, 2016 for the reasons noted below.

Net cash provided by operating activities for the nine months ended September 30, 2016 and 2015 was $187.7 million and $178.6 million, respectively. The increase of $9.1 million in net cash provided by operating activities was primarily due to an increase in NOI. Management believes that the Company’s internally generated net cash provided by operating activities will be sufficient to enable it to meet its operating expenses, capital expenditures, debt service requirements and distributions to shareholders for the foreseeable future.

Net cash used in investing activities was $65.7 million for the nine months ended September 30, 2016 compared to net cash provided by investing activities of$17.3 million for the nine months ended September 30, 2015. The change was primarily due to net proceeds of $55.2 million received from assets sold in 2015 combined with a $28.8 million increase in cash investment in the Joint Venture and $12.6 million acquisition in Rockville, Maryland, in 2016. This change was partially offset by a decrease in cash paid related to capital improvements.

Net cash used in financing activities was $305.9 million and $96.2 million for the nine months ended September 30, 2016 and 2015, respectively.  The change was primarily due to repayment of a  mortgage note of $250.0 million in 2016 using cash on hand and borrowings from the Credit Facility (defined below). This change was also impacted by an increase in quarterly distributions paid to common shareholders of $22.5 million (year-to-date increase from $1.60 per share to $2.25 per share).

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The Company has a line of credit (the “Credit Facility”) with Wells Fargo Bank, National Association (“Wells Fargo”). The Credit Facility has a borrowing limit of $250.0 million and expires May 1, 2019. The rate of interest charged on borrowings is based on the LIBOR plus 0.875% to LIBOR plus 1.70% depending on the Company’s credit ratings. Currently, the Company’s rate under the Credit Facility is LIBOR plus 0.875%. In addition, the Company is required to pay an annual facility fee ranging from 0.125% to 0.30% of the borrowing limit depending on the Company’s credit ratings (currently 0.125%). As of September 30, 2016, the Company had $60.0 million outstanding on the Credit Facility at an interest rate of 1.36%. Subsequent to September 30, 2016, the Company repaid the outstanding balance in full. The Company had no balance outstanding on the Credit Facility at December 31, 2015. The Company had $596,000 and $769,000 of unamortized commitment fees as of September 30, 2016 and December 31, 2015, respectively, which is included in other assets in the accompanying consolidated balance sheets. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance as of September 30, 2016. Interest on outstanding borrowings is payable monthly.

The Company’s preferred equity outstanding decreased from 22.0% of its market capitalization at December 31, 2015 to 18.8% at September 30, 2016 primarily due to an increase in stock price from $87.43 at December 31, 2015 to $113.57 at  September 30, 2016. The Company calculates market capitalization by adding (1) the liquidation preference of the Company’s outstanding preferred equity, (2) principal value of the Company’s outstanding debt and (3) the total number of common shares and common units outstanding at September 30, 2016 multiplied by the closing price of the stock on that date.

The Company focuses on retaining cash for reinvestment, as we believe this provides us the greatest level of financial flexibility. As operating fundamentals improve, additional increases in distributions to the Company’s common shareholders may be required. The Company will continue to monitor its taxable income and the corresponding dividend requirements. During the first quarter of 2016, the Company increased its quarterly dividend from $0.60 per common share to $0.75 per common share, increasing quarterly distributions by $5.2 million per quarter.

Issuance of Preferred Stock: Subsequent to September 30, 2016, the Company issued $189.8 million or 7,590,000 depositary shares, each representing 1/1000 of a share of the 5.20% Cumulative Preferred Stock, Series W, at $25.00 per depositary share. The Company will use the net proceeds from this issuance to pay amounts outstanding under the Company’s Credit Facility and for general corporate purposes, including the potential redemption of preferred equity.

Repurchase of Common Stock: No shares of common stock were repurchased under the board-approved common stock repurchase program during the nine months ended September 30, 2016 or the year ended December 31, 2015.

Capital Expenditures: The Company defines recurring capital expenditures as those necessary to maintain and operate its commercial real estate at its current economic value. During the nine months ended September 30, 2016 and 2015, the Company expended $23.5 million and $32.1 million, respectively, in recurring capital expenditures, or $0.84 and $1.13 per weighted average square foot owned, respectively. Tenant improvement amounts exclude those amounts reimbursed by the tenants. Nonrecurring capital improvements include property renovations and expenditures related to repositioning acquisitions. The following table depicts capital expenditures (in thousands):

	For The Nine Months
	Ended September 30,
	2016		2015
Recurring capital expenditures
Capital improvements	$	5,300	$	6,988
Tenant improvements		13,109		18,494
Lease commissions		5,054		6,597
Total recurring capital expenditures		23,463		32,079
Nonrecurring capital improvements		767		2,988
Total capital expenditures	$	24,230	$	35,067

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Capital expenditures on a per square foot owned basis are as follows:

	For The Nine Months
	Ended September 30,
	2016		2015
Recurring capital expenditures
Capital improvements	$	0.19	$	0.25
Tenant improvements		0.47		0.65
Lease commissions		0.18		0.23
Total recurring capital expenditures		0.84		1.13
Nonrecurring capital improvements		0.03		0.11
Total capital expenditures	$	0.87	$	1.24

The decrease in recurring capital expenditures of $8.6 million, or 26.9%, was primarily due to lower tenant improvement costs and continued efforts to reduce capital expenditures.

Distributions: The Company has elected and intends to qualify as a REIT for federal income tax purposes. In order to maintain its status as a REIT, the Company must meet, among other tests, sources of income, share ownership and certain asset tests. As a REIT, the Company is not taxed on that portion of its taxable income that is distributed to its shareholders provided that at least 90% of its taxable income is distributed to its shareholders prior to the filing of its tax return.

The Company’s funding strategy has been to primarily use permanent capital, including common and preferred stock, along with internally generated retained cash flows to meet its liquidity needs. In addition, the Company may sell properties that no longer meet its investment criteria. From time to time, the Company may use its Credit Facility or other forms of debt to facilitate real estate acquisitions or other capital allocations. For the nine months ended September 30, 2016, the earnings to combined fixed charges and preferred distributions coverage ratio was 2.3 to 1.0. The Company targets a minimum ratio of FFO (as defined below) to combined fixed charges and preferred distributions of 3.0 to 1.0. Fixed charges include interest expense and capitalized interest while preferred distributions include amounts paid to preferred shareholders and preferred Operating Partnership unit holders. For the nine months ended September 30, 2016, the FFO to combined fixed charges and preferred distributions coverage ratio was 3.9 to 1.0.

Non-GAAP Supplemental Disclosure Measure: Funds from Operations: Management believes that Funds from Operations (“FFO”) and FFO, as adjusted are useful supplemental measures of the Company’s operating performance. The Company computes FFO in accordance with the White Paper on FFO approved by the Board of Governors of the National Association of Real Estate Investment Trusts. The White Paper defines FFO as net income, computed in accordance with GAAP, before depreciation, amortization, gains or losses on asset dispositions, net income allocable to noncontrolling interests —common units, net income allocable to restricted stock unit holders, impairment charges and nonrecurring items. Management believes that FFO provides a useful measure of the Company’s operating performance and when compared year over year, reflects the impact to operations from trends in occupancy rates, rental rates, operating costs, development activities, general and administrative expenses and interest costs, providing a perspective not immediately apparent from net income.

FFO and FFO, as adjusted should be analyzed in conjunction with net income. However, FFO and FFO, as adjusted should not be viewed as substitutes for net income as measures of operating performance or liquidity as they do not reflect depreciation and amortization costs or the level of capital expenditure and leasing costs necessary to maintain the operating performance of the Company’s properties, which are significant economic costs and could materially affect the Company’s results of operations.

Management believes FFO provides useful information to the investment community about the Company’s operating performance when compared to the performance of other real estate companies as FFO is generally

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recognized as the industry standard for reporting operations of REITs. Management believes FFO, as adjusted provides useful information to the investment community by adjusting FFO for certain items so as to provide more meaningful period-to-period comparisons of our operating performance. Other REITs may use different methods for calculating FFO and/or FFO, as adjusted and, accordingly, our FFO and FFO, as adjusted may not be comparable to other real estate companies’ FFO and/or FFO, as adjusted.

FFO for the Company is computed as follows (in thousands, except per share data):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to common shareholders	$	19,718	$	22,484	$	50,017	$	53,384
Gain on sale of real estate facilities		—		(15,748)		—		(28,235)
Depreciation and amortization		24,631		25,985		74,886		79,243
Net income allocable to noncontrolling interests—common units		5,315		6,087		13,495		14,467
Net income allocable to restricted stock unit holders		128		97		387		237
FFO allocable to common and dilutive shares		49,792		38,905		138,785		119,096
FFO allocated to noncontrolling interests—common units		(10,512)		(8,254)		(29,312)		(25,284)
FFO allocated to restricted stock unit holders		(279)		(160)		(827)		(512)
FFO allocated to common shares	$	39,001	$	30,491	$	108,646	$	93,300
Weighted average common shares outstanding		27,103		26,985		27,076		26,956
Weighted average common Operating Partnership units outstanding		7,305		7,305		7,305		7,305
Weighted average restricted stock units outstanding		268		124		256		115
Weighted average common share equivalents outstanding		98		64		90		78
Total common and dilutive shares		34,774		34,478		34,727		34,454
Net income per common share—diluted	$	0.72	$	0.83	$	1.84	$	1.97
Gain on sale of real estate facilities (1)		—		(0.45)		—		(0.81)
Depreciation and amortization (1)		0.71		0.75		2.16		2.30
FFO per common and dilutive shares (1)	$	1.43	$	1.13	$	4.00	$	3.46

____________________________

⁽¹⁾ Per share amounts are computed using additional dilutive shares related to noncontrolling interests and restricted stock units.

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The following table reconciles reported FFO to FFO, as adjusted, which excludes a  material lease buyout payment of $528,000 related to a 58,000 square foot lease in Virginia, non-cash distributions related to the redemption of preferred equity, acquisition transaction costs and a net non-cash stock compensation charge of $2.0 million.

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
FFO allocable to common and dilutive shares	$	49,792	$	38,905	$	138,785	$	119,096
LTEIP modification due to a change in senior management		—		—		2,018		—
Lease buyout payment		(528)		—		(528)		—
Acquisition transaction costs		328		—		328		—
Non-cash distributions related to the redemption of
preferred equity		—		2,487		—		2,487
FFO allocable to common and dilutive shares, as adjusted	$	49,592	$	41,392	$	140,603	$	121,583
FFO per common and dilutive shares	$	1.43	$	1.13	$	4.00	$	3.46
LTEIP modification due to a change in senior management		—		—		0.05		—
Lease buyout payment		(0.01)		—		(0.01)		—
Acquisition transaction costs		0.01		—		0.01		—
Non-cash distributions related to the redemption of preferred equity		—		0.07		—		0.07
FFO per common and dilutive share, as adjusted	$	1.43	$	1.20	$	4.05	$	3.53

FFO allocable to common and dilutive shares, as adjusted, increased $8.2 million and $19.0 million for the three and nine months ended September 30, 2016 compared to the same periods in 2015. The three and nine month increases were due to an increase in NOI and savings from preferred distributions relating to the redemption of preferred equity and lower interest expense.

Related Party Transactions: Assuming issuance of the Company’s common stock upon redemption of its common partnership units, PS would own 42.0% (or 14.5 million shares) of the outstanding shares of the Company’s common stock at September 30, 2016. As of September 30, 2016, PS owned 26.4% of the Operating Partnership (100.0% of the common units not owned by the Company). Ronald L. Havner, Jr., the Company’s chairman, is also the Chairman of the Board, Chief Executive Officer of PS. Joseph D. Russell, Jr. is a director of the Company and also President of PS. Gary E. Pruitt, an independent director of the Company is also a trustee of PS.

Pursuant to a cost sharing and administrative services agreement, the Company shares costs with PS for certain administrative services and rental of corporate office space. The administrative services include investor relations, legal, corporate tax and information systems, which were allocated to PS in accordance with a methodology intended to fairly allocate those costs. These costs totaled $123,000 and $117,000 for the three months ended September 30, 2016 and 2015, respectively, and $370,000 and $352,000 for the nine months ended September 30, 2016 and 2015, respectively. In addition, the Company provides property management services for properties owned by PS for a management fee of 5% of the gross revenues of such properties in addition to reimbursement of direct costs. These management fee revenues recognized under a management contract with PS totaled $130,000 for the three months ended September 30, 2016 and 2015 and $389,000 and $410,000 for the nine months ended September 30, 2016 and 2015, respectively. PS also provides property management services for the self-storage component of two assets owned by the Company for a fee of 6% of the gross revenues of such properties in addition to reimbursement of certain costs. Management fee expense recognized under the management contract with PS totaled $22,000 and $21,000 for the three months ended September 30, 2016 and 2015, respectively, and $64,000 and $59,000 for the nine months ended September 30, 2016 and 2015, respectively.

The PS Business Parks name and logo are owned by PS and licensed to the Company under a non-exclusive, royalty-free license agreement. The license can be terminated by either party for any reason with six months written notice.

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Off-Balance Sheet Arrangements: The Company does not have any off-balance sheet arrangements that have or are reasonably likely to have a material effect on the Company’s financial condition, results of operations, liquidity, capital expenditures or capital resources.

Contractual Obligations: The Company is scheduled to pay cash dividends of $55.3 million per year on its preferred equity outstanding as of September 30, 2016. Dividends are paid when and if declared by the Company’s Board of Directors and accumulate if not paid. Shares of preferred equity are redeemable by the Company in order to preserve its status as a REIT and are also redeemable five years after issuance.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

To limit the Company’s exposure to market risk, the Company principally finances its operations and growth with permanent equity capital consisting of either common or preferred stock. As a result, the Company’s debt as a percentage of total equity (based on book values) was 3.2% as of September 30, 2016.

Our exposure to market risk for changes in interest rates relates primarily to the Credit Facility, which is subject to variable interest rates. See Notes 2, 6 and 7 to the consolidated financial statements included in this Quarterly Report on Form 10-Q for additional information regarding the terms, valuations and approximate principal maturities of the Company’s indebtedness, including the mortgage note payable and Credit Facility. Based on borrowing rates currently available to the Company, the difference between the carrying amount of debt and its fair value is insignificant.

ITEM 4. CONTROLS AND PROCEDURES

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of September 30, 2016. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of the Company’s disclosure controls and procedures as of September 30, 2016, the Company’s Chief Executive Officer and Chief Financial Officer concluded that, as of such date, the Company’s disclosure controls and procedures were effective at the reasonable assurance level.

No change in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the fiscal quarter ended September 30, 2016 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The Company currently is not subject to any material litigation other than routine litigation and administrative proceedings arising in the ordinary course of business.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors included in our Annual Report on Form 10-K for the year ended December 31, 2015.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The Company’s Board of Directors has authorized the repurchase, from time to time, of up to 6.5 million shares

36

of the Company’s common stock on the open market or in privately negotiated transactions. The authorization has no expiration date. Purchases will be made subject to market conditions and other investment opportunities available to the Company.

During the three months ended September 30, 2016, there were no shares of the Company’s common stock repurchased. As of September 30, 2016, 1,614,721 shares remain available for purchase under the program.

See Note 10 to the consolidated financial statements for additional information on repurchases of equity securities.

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ITEM 6. EXHIBITS

Exhibits
Exhibit 3.1	Certificate of Determination of Preferences of 5.20% Series W Cumulative Redeemable Preferred Stock of PS Business Parks, Inc. Field with Registrant’s Current Report on Form 8-K dated October 12, 2016 and incorporated herein by reference.
Exhibit 4.1	Deposit Agreement Relating to 5.20% Cumulative Preferred Stock, Series W of PS Business Parks, Inc. dated as of October 11, 2016. Filed with Registrant’s Current Report on Form 8-K dated October 12, 2016, and incorporated herein by reference.
Exhibit 10.1	Amendment to Agreement of Limited Partnership of PS Business Parks, L.P. relating to 5.20% Series W Cumulative Preferred Stock, dated as of October 20, 2016. Filed herewith.
Exhibit 12	Statement re: Computation of Ratio of Earnings to Fixed Charges. Filed herewith.
Exhibit 31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 32.1	Certifications of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 101.INS	XBRL Instance Document. Filed herewith.
Exhibit 101.SCH	XBRL Taxonomy Extension Schema. Filed herewith.
Exhibit 101.CAL	XBRL Taxonomy Extension Calculation Linkbase. Filed herewith.
Exhibit 101.DEF	XBRL Taxonomy Extension Definition Linkbase. Filed herewith.
Exhibit 101.LAB	XBRL Taxonomy Extension Label Linkbase. Filed herewith.
Exhibit 101.PRE	XBRL Taxonomy Extension Presentation Linkbase. Filed herewith.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: October 28, 2016

PS BUSINESS PARKS, INC.

BY:/s/ Edward A. Stokx

Edward A. Stokx

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

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EXHIBIT INDEX

Exhibits
Exhibit 3.1	Certificate of Determination of Preferences of 5.20% Series W Cumulative Redeemable Preferred Stock of PS Business Parks, Inc. Field with Registrant’s Current Report on Form 8-K dated October 12, 2016 and incorporated herein by reference.
Exhibit 4.1	Deposit Agreement Relating to 5.20% Cumulative Preferred Stock, Series W of PS Business Parks, Inc. dated as of October 11, 2016. Filed with Registrant’s Current Report on Form 8-K dated October 12, 2016, and incorporated herein by reference.
Exhibit 10.1	Amendment to Agreement of Limited Partnership of PS Business Parks, L.P. relating to 5.20% Series W Cumulative Preferred Stock, dated as of October 20, 2016. Filed herewith.
Exhibit 12	Statement re: Computation of Ratio of Earnings to Fixed Charges. Filed herewith.
Exhibit 31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 32.1	Certifications of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Filed herewith.
Exhibit 101.INS	XBRL Instance Document. Filed herewith.
Exhibit 101.SCH	XBRL Taxonomy Extension Schema. Filed herewith.
Exhibit 101.CAL	XBRL Taxonomy Extension Calculation Linkbase. Filed herewith.
Exhibit 101.DEF	XBRL Taxonomy Extension Definition Linkbase. Filed herewith.
Exhibit 101.LAB	XBRL Taxonomy Extension Label Linkbase. Filed herewith.
Exhibit 101.PRE	XBRL Taxonomy Extension Presentation Linkbase. Filed herewith.

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EX-10.1

Exhibit 10.1

PS BUSINESS PARKS, L.P.

AMENDMENT TO AGREEMENT OF LIMITED

PARTNERSHIP RELATING TO

5.20% SERIES W CUMULATIVE REDEEMABLE

PREFERRED UNITS

This Amendment to the Agreement of Limited Partnership of PS Business Parks, L.P., a California limited partnership (the “Partnership”), dated as of October 20, 2016 (this “Amendment”), amends the Agreement of Limited Partnership of the Partnership, dated as of March 17, 1998, as amended, by and among PS Business Parks, Inc. (the “General Partner”) and each of the limited partners described on Exhibit A to that partnership agreement (the “Partnership Agreement”). Section references are (unless otherwise specified) references to sections in this Amendment.

WHEREAS, the General Partner agreed to issue up to 7,590,000 Depositary Shares each representing 1/1000th of a share of the General Partner’s preferred stock designated as the “5.20% Cumulative Preferred Stock, Series W” (the “Depositary Shares”) for a price of $25.00 per Depositary Share;

WHEREAS, Section 4.1(b)(2) of the Partnership Agreement requires the General Partner to contribute to the Partnership the funds raised through the issuance of additional shares of the General Partner in return for additional Partnership Units, and provides that the General Partner’s capital contribution shall be deemed to equal the amount of the gross proceeds of that share issuance (i.e., the net proceeds actually contributed, plus any underwriter’s discount or other expenses incurred, with any such discount or expense deemed to have been incurred on behalf of the Partnership);

WHEREAS, Section 4.2(a) of the Partnership Agreement provides generally for the creation and issuance of Partnership Units with such designations, preferences and relative, participating, optional or other special rights, powers and duties, including rights, powers and duties senior to other Partnership Interests, all as shall be determined by the General Partner, without the consent of the Limited Partners, and Section 4.2(b) of the Partnership Agreement specifically contemplates the issuance of Units to the General Partner having designations, preferences and other rights, all such that the economic interests are substantially similar to the designations, preferences and other rights of shares issued by the General Partner, such as the Depositary Shares;

WHEREAS, the General Partner desires to cause the Partnership to issue additional Units of a new class and series, with the designations, preferences and relative, participating, optional or other special rights, powers and duties set forth herein; and

WHEREAS, the General Partner desires by this Amendment to so amend the Partnership Agreement as of the date first set forth above to provide for the designation and issuance of such new class and series of Units.

NOW, THEREFORE, the Partnership Agreement is hereby amended by establishing and fixing the rights, limitations and preferences of a new class and series of Units as follows:

Section 1. Definitions. Capitalized terms not otherwise defined herein shall have their respective meanings set forth in the Partnership Agreement. Capitalized terms that are used in this Amendment shall have the meanings set forth below:

(a) “Liquidation Preference” means, with respect to the Series W Preferred Units (as defined below), $25.00 per Series W Preferred Unit, plus the amount of any accumulated and unpaid Priority Return (as defined below) with respect to such Series W Preferred Unit, whether or not declared, minus any distributions in excess of the Priority Return that has accrued with respect to such Series W Preferred Units, to the date of payment.

(b) “Parity Preferred Units” means any class or series of Partnership Interests (as such term is defined in the Partnership Agreement) of the Partnership now or hereafter authorized, issued or outstanding and expressly designated by the Partnership to rank on a parity with the Series W Preferred Units with respect to distributions and rights upon voluntary or involuntary liquidation, winding-up or dissolution of the Partnership, including the 6.45% Series S Cumulative Redeemable Preferred Units (the “Series S Preferred Units”), the 6.00% Series T Cumulative

Redeemable Preferred Units (the “Series T Preferred Units”), the 5.75% Series U Cumulative Redeemable Preferred Units (the “Series U Preferred Units”) and the 5.70% Series V Cumulative Redeemable Preferred Units (the “Series V Preferred Units”). Notwithstanding the differing allocation rights set forth in Section 4 below that apply to the Series S, T, U and V Preferred Units.

(c) “Priority Return” means an amount equal to 5.20% per annum, of the Liquidation Preference per Series W Preferred Unit, commencing on the date of issuance of such Series W Preferred Unit, determined on the basis of a 360-day year (and twelve 30-day months), cumulative to the extent not distributed on any Series W Preferred Unit Distribution Payment Date (as defined below).

Section 2. Creation of Series W Preferred Units. (a) Designation and Number. Pursuant to Section 4.2(a) of the Partnership Agreement, a series of Partnership Units (as such term is defined in the Partnership Agreement) in the Partnership designated as the “5.20% Series W Cumulative Redeemable Preferred Units” (the “Series W Preferred Units”) is hereby established effective as of October 20, 2016. The number of Series W Preferred Units shall be 7,590,000. The Holders of Series W Preferred Units shall not have any Percentage Interest (as such term is defined in the Partnership Agreement) in the Partnership.

(b) Capital Contribution. In return for the issuance to the General Partner of the Series W Preferred Units set forth on Exhibit C to this Amendment, the General Partner has contributed to the Partnership the funds raised through the General Partner’s issuance of the Depositary Shares (the General Partner’s capital contribution shall be deemed to equal the amount of the gross proceeds of that share issuance, i.e., the net proceeds actually contributed, plus any underwriter’s discount or other expenses incurred, with any such discount or expense deemed to have been incurred by the General Partner on behalf of the Partnership).

(c) Construction. The Series W Preferred Units have been created and are being issued in conjunction with the General Partner’s issuance of the Depositary Shares relating to the General Partner’s 5.20% Cumulative Preferred Stock, Series W, and as such, the Series W Preferred Units are intended to have designations, preferences and other rights, all such that the economic interests are substantially similar to the designations, preferences and other rights of the Depositary Shares, and the terms of this Amendment shall be interpreted in a fashion consistent with this intent.

Section 3. Distributions. (a) Payment of Distributions. Subject to the rights of holders of Parity Preferred Units as to the payment of distributions, pursuant to Section 5.1 of the Partnership Agreement, holders of Series W Preferred Units shall be entitled to receive, when, as and if declared by the Partnership acting through the General Partner, the Priority Return. Such distributions shall be cumulative, shall accrue from the original date of issuance of the Series W Preferred Units and, notwithstanding Section 5.1 of the Partnership Agreement, will be payable (i) quarterly in arrears on March 31, June 30, September 30 and December 31 of each year commencing on December 31, 2016 and (ii) in the event of a redemption of Series W Preferred Units (each a “Series W Preferred Unit Distribution Payment Date”). If any date on which distributions are to be made on the Series W Preferred Units is not a Business Day (as defined below), then payment of the distribution to be made on such date will be made on the Business Day immediately preceding such date with the same force and effect as if made on such date. Distributions on the Series W Preferred Units will be made to the holders of record of the Series W Preferred Units on the relevant record dates to be fixed by the Partnership acting through the General Partner, which record dates shall in no event exceed fifteen (15) Business Days prior to the relevant Series W Preferred Unit Distribution Payment Date. Business Day shall be any day other than a Saturday, Sunday or day on which banking institutions in the State of New York or the State of California are authorized or obligated by law to close, or a day which is or is declared a national or a New York or California state holiday.

(b) Prohibition on Distribution. No distributions on Series W Preferred Units shall be authorized by the General Partner or paid or set apart for payment by the Partnership at any such time as the terms and provisions of any agreement of the Partnership or the General Partner, including any agreement relating to their indebtedness, prohibits such authorization, payment or setting apart for payment or provides that such authorization, payment or setting apart for payment would constitute a breach thereof or a default thereunder, or to the extent that such authorization or payment shall be restricted or prohibited by law.

(c) Distributions Cumulative. Distributions on the Series W Preferred Units will accrue whether or not the terms and provisions of any agreement of the Partnership, including any agreement relating to its indebtedness, at

any time prohibit the current payment of distributions, whether or not the Partnership has earnings, whether or not there are funds legally available for the payment of such distributions and whether or not such distributions are authorized. Accrued but unpaid distributions on the Series W Preferred Units will accumulate as of the Series W Preferred Unit Distribution Payment Date on which they first become payable. Distributions on account of arrears for any past distribution periods may be declared and paid at any time, without reference to a regular Series W Preferred Unit Distribution Payment Date, to holders of record of the Series W Preferred Units on the record date fixed by the Partnership acting through the General Partner which date shall not exceed fifteen (15) Business Days prior to the payment date. Accumulated and unpaid distributions will not bear interest.

(d) Priority as to Distributions. Subject to the provisions of Article 13 of the Partnership Agreement:

(i) So long as any Series W Preferred Units are outstanding, no distribution of cash or other property shall be authorized, declared, paid or set apart for payment on or with respect to any class or series of Partnership Interests ranking junior as to the payment of distributions or rights upon a voluntary or involuntary liquidation, dissolution or winding-up of the Partnership to the Series W Preferred Units (collectively, “Junior Units”), nor shall any cash or other property be set aside for or applied to the purchase, redemption or other acquisition for consideration of any Series W Preferred Units, any Parity Preferred Units or any Junior Units, unless, in each case, all distributions accumulated on all Series W Preferred Units and all classes and series of outstanding Parity Preferred Units have been paid in full. The foregoing sentence shall not prohibit (x) distributions payable solely in Junior Units, or (y) the conversion of Junior Units or Parity Preferred Units into Partnership Interests ranking junior to the Series W Preferred Units.

(ii) So long as distributions have not been paid in full (or a sum sufficient for such full payment is not irrevocably deposited in trust for payment) upon the Series W Preferred Units, all distributions authorized and declared on the Series W Preferred Units and all classes or series of outstanding Parity Preferred Units shall be authorized and declared so that the amount of distributions authorized and declared per Series W Preferred Unit and such other classes or series of Parity Preferred Units shall in all cases bear to each other the same ratio that accrued distributions per Series W Preferred Unit and such other classes or series of Parity Preferred Units (which shall not include any accumulation in respect of unpaid distributions for prior distribution periods if such class or series of Parity Preferred Units do not have cumulative distribution rights) bear to each other.

(e) No Further Rights. Holders of Series W Preferred Units shall not be entitled to any distributions, whether payable in cash, other property or otherwise, in excess of the full cumulative distributions described herein.

Section 4. Allocations. Section 6.1(a)(ii) of the Partnership Agreement is amended to read, in its entirety, as follows:

“(ii) (A) Notwithstanding anything to the contrary contained in this Agreement, in any taxable year: (1) the holders of Series S, T, U, V and W Preferred Units shall be allocated an amount of gross income equal to the Priority Return distributed to such holders in such taxable year.

(B) After the Capital Account balances of all Partners other than holders of any series of Preferred Units have been reduced to zero, Losses of the Partnership that otherwise would be allocated so as to cause deficit Capital Account balances for those other Partners shall be allocated to the holders of the Series S, T, U, V and W Preferred Units in proportion to the positive balances of their Capital Accounts until those Capital Account balances have been reduced to zero. If Losses have been allocated to the holders of the Series S, T, U, V and W Preferred Units pursuant to the preceding sentence, the first subsequent Profits shall be allocated to those preferred partners so as to recoup, in reverse order, the effects of the loss allocations.

(C) Upon liquidation of the Partnership or the interest of the holders of Series S, T, U, V and W Preferred Units in the Partnership, items of gross income or deduction shall be allocated to the holders of Series S, T, U, V and W Preferred Units in a manner such that, immediately prior to such liquidation, the Capital Account balances of such holders shall equal the amount of their Liquidation Preferences.”

Section 5. Optional Redemption. The Series W Preferred Units shall be redeemed at the same time, to the same extent, and applying, except as set forth below, similar procedures, as any redemption by the General Partner of the Depositary Shares. The redemption price, payable in cash, shall equal the Liquidation Preference (the “Series W Redemption Price”). Unless otherwise agreed, the Partnership will deliver into escrow with an escrow agent

acceptable to the Partnership and the holders of the Series W Preferred Units being redeemed (the “Escrow Agent”) the Series W Redemption Price and an executed Redemption Agreement, in substantially the form attached as Exhibit A (the “Redemption Agreement”), and an Amendment to the Agreement of Limited Partnership evidencing the Redemption, in substantially the form attached as Exhibit B. The holders of the Series W Preferred Units to be redeemed will also deliver into escrow with the Escrow Agent an executed Redemption Agreement and an executed Amendment to the Agreement of Limited Partnership evidencing the redemption. Upon delivery of all of the above-described items by both parties, on the redemption date the Escrow Agent shall release the Series W Redemption Price to the holders of the Series W Preferred Units and the fully-executed Redemption Agreement and Amendment to Agreement of Limited Partnership to both parties. On and after the date of redemption, distributions will cease to accumulate on the Series W Preferred Units called for redemption, unless the Partnership defaults in the payment of the Series W Redemption Price. The Redemption Right (as such term is defined in the Partnership Agreement) given to Limited Partners (as such term is defined in the Partnership Agreement) in Section 8.6 of the Partnership Agreement shall not be available to the holders of the Series W Preferred Units and all references to Limited Partners in said Section 8.6 (and related provisions of the Partnership Agreement) shall not include holders of the Series W Preferred Units.

Section 6. Voting Rights. Holders of the Series W Preferred Units will not have any voting rights or right to consent to any matter requiring the consent or approval of the Limited Partners, except as set forth in Section 14.1 of the Partnership Agreement and in this Section 6. Solely for purposes of Section 14.1 of the Partnership Agreement, each Series W Preferred Unit shall be treated as one Partnership Unit.

Section 7. Transfer Restrictions. The holders of Series W Preferred Units shall be subject to all of the provisions of Section 11 of the Partnership Agreement.

Section 8. No Conversion Rights. The holders of the Series W Preferred Units shall not have any rights to convert such units into shares of any other class or series of stock or into any other securities of, or interest in, the Partnership.

Section 9. No Sinking Fund. No sinking fund shall be established for the retirement or redemption of Series W Preferred Units.

Section 10. Exhibit A to Partnership Agreement. In order to duly reflect the issuance of the Series W Preferred Units provided for herein, the Partnership Agreement is hereby further amended pursuant to Section 12.3 of the Partnership Agreement by replacing the current form of Exhibit A to the Partnership Agreement with the form of Exhibit A that is attached to this Amendment as

Exhibit C.  

Section 11. Inconsistent Provisions. Nothing to the contrary contained in the Partnership Agreement shall limit any of the rights or obligations set forth in this Amendment.

[The remainder of this page is intentionally left blank.]

IN WITNESS WHEREOF, this Amendment has been executed as of the date first above written.

PS BUSINESS PARKS, INC.

By: /s/ Maria R. Hawthorne

Name: Maria R. Hawthorne

Title: President and Chief Executive Officer

Exhibit A

FORM OF

REDEMPTION AGREEMENT

THIS REDEMPTION AGREEMENT (the “Agreement”) is entered into effective as of the                     day of                     ,                     , by and between                     (the “Retiring Partner”), and PS Business Parks, L.P., a California limited partnership (the “Partnership”).

RECITALS:

WHEREAS, the Agreement of Limited Partnership of the Partnership, dated as of March 17, 1998, as amended, was amended by an Amendment to Agreement of Limited Partnership Relating to 5.20% Series W Cumulative Redeemable Preferred Units (the “Amendment”), as further amended from time to time;

WHEREAS, the Retiring Partner owns                     of the 5.20% Series W Cumulative Redeemable Preferred Units in the Partnership (the “Series W Preferred Units”); and

WHEREAS, the Partnership desires to redeem the Series W Preferred Units of the Retiring Partner, and the Retiring Partner desires to liquidate its Series W Preferred Units (the “Redemption”) pursuant to the Amendment and based on the representations and under the terms and conditions set forth below;

NOW, THEREFORE, in consideration of the mutual covenants, representations and agreements herein contained, the parties hereto, intending to be legally bound, do covenant and agree as follows:

1. Liquidation of Retiring Partner. In satisfaction of the terms and conditions set forth herein and in the Amendment, the Retiring Partner’s Series W Preferred Units are hereby completely liquidated and the Retiring Partner immediately and automatically ceases to be a limited partner in the Partnership in exchange for the payment of the Series W Redemption Price (as defined in the Amendment and in accordance with the provisions set forth in the Amendment) and for other good and valuable consideration.

2. Representations of Retiring Partner. The Retiring Partner represents and warrants to the Partnership that:

(a) The Retiring Partner is duly organized and validly existing under the laws of the State of                     and has been duly authorized by all necessary and appropriate [limited liability company] [corporate] [partnership] action to enter into this Agreement and to consummate the transactions contemplated herein. This Agreement is a valid and binding obligation of the Retiring Partner, enforceable against the Retiring Partner in accordance with its terms, except insofar as such enforceability may be affected by bankruptcy, insolvency or similar laws affecting creditor’s rights generally and the availability of any particular equitable remedy.

(b) The Retiring Partner has not sold, assigned or otherwise disposed of all or any portion of the Series W Preferred Units and the Series W Preferred Units are free of any liens, security interests, encumbrances or other restrictions, whether existing of record or otherwise.

(c) The execution of this Agreement by the Retiring Partner and the performance of its obligations hereunder will not violate any contract, mortgage, indenture, or other similar restriction to which the Retiring Partner is a party or by which its assets are bound.

(d) Neither the execution nor the delivery of this Agreement nor the consummation of the transactions contemplated herein nor fulfillment of or compliance with the terms and conditions hereof (a) conflict with or will result in a breach of any of the terms, conditions or provisions of (i) the organizational and governing documents of the Retiring Partner or (ii) any agreement, order, judgment, decree, arbitration award, statute, regulation or instrument to which the Retiring Partner is a party or by which it or its assets are bound, or (b) constitutes or will constitute a breach, violation or default under any of the foregoing. No consent or approval, authorization, order, regulation or qualification of any governmental entity or any other person is required for the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby by the Retiring Partner.

3. Representations and Warranties of the Partnership. The Partnership represents and warrants to the Retiring Partner as follows:

(a) The Partnership is duly organized and validly existing under the laws of the State of California and has been duly authorized by all necessary and appropriate partnership action to enter into this Agreement and to consummate the transactions contemplated herein. This Agreement is a valid and binding obligation of the Partnership enforceable in accordance with its terms, except as such enforcement may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors’ rights generally.

(b) The execution of this Agreement by the Partnership and the performance of its obligations hereunder will not violate any contract, mortgage, indenture, or other similar restriction to which the Partnership is a party or by which the Partnership is bound.

(c) Neither the execution nor the delivery of this Agreement nor the consummation of the transactions contemplated herein nor fulfillment of or compliance with the terms and conditions hereof (a) conflict with or will result in a breach of any of the terms, conditions or provisions of (i) the organizational and governing documents of the Partnership or (ii) any agreement, order, judgment, decree, arbitration award, statute, regulation or instrument to which the Partnership is a party or by which it or its assets are bound, or (b) constitutes or will constitute a breach, violation or default under any of the foregoing. No consent or approval, authorization, order, regulation or qualification of any governmental entity or any other person is required for the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby by the Partnership.

(d) Consummation of the Redemption by the Partnership will not render the Partnership insolvent under California partnership law.

4. Indemnification.  

(a) The Retiring Partner covenants and agrees to indemnify the Partnership and hold it harmless against and with respect to any and all damage, loss, liability, deficiency, cost and expense, including reasonable attorneys’ fees, (i) resulting from any misrepresentation, breach of warranty or non-fulfillment of any agreement or covenant on the part of the Retiring Partner under this Agreement, and (ii) from any and all actions, suits, proceedings, demands, assessments, judgments, costs and legal and other expenses incident to any of the foregoing.

(b) The Partnership covenants and agrees to indemnify the Retiring Partner and hold it harmless against and with respect to any and all damage, loss, liability, deficiency, cost and expense, including reasonable attorneys’ fees, (i) resulting from any misrepresentation, breach of warranty or non-fulfillment of any agreement or covenant on the part of such Partnership under this Agreement and (ii) from any and all actions, suits, proceedings, demands, assessments, judgments, costs and legal and other expenses incident to any of the foregoing.

5. Survival of Representations and Warranties. All representations, warranties, covenants and agreements of any of the parties hereto made in this Agreement shall survive the execution and delivery hereof, the closing hereunder, and the execution and delivery of all instruments and documents executed in connection therewith.

6. Integration, Interpretation and Miscellaneous. This Agreement sets forth the entire understanding of the parties hereto with respect to the subject matter herein and it shall not be changed or terminated orally. This Agreement shall be construed in accordance with the laws of the State of California. This Agreement may be executed simultaneously in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective heirs, personal representatives, and successors, or successors and assigns, as the case may be. The headings in this Agreement are for reference purposes only and shall not affect the meaning or interpretation of this Agreement.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

RETIRING PARTNER:

By: ________________________________

     Name:

     Title:

PARTNERSHIP:

PS Business Parks, L.P.

By: PS Business Parks, Inc., its

     General Partner

     By: _____________________________

           Name:

           Title:

Exhibit B

FORM OF

AMENDMENT TO

AGREEMENT OF LIMITED PARTNERSHIP

OF

PS BUSINESS PARKS, L.P.

This Amendment to Agreement of Limited Partnership of PS Business Parks, L.P. (the “Partnership”), dated as of                     (this “Amendment”) is entered into by the General Partner of the Partnership, PS Business Parks, Inc., and                     , as a withdrawing Limited Partner of the Partnership (the “Withdrawing Partner”).

RECITALS:

WHEREAS, capitalized terms used herein, unless otherwise defined, have the meanings assigned to such terms in the Agreement of Limited Partnership of the Partnership entered into as of March 17, 1998, as amended (the “Partnership Agreement”).

WHEREAS, pursuant to the redemption by the Partnership of the 5.20% Series W Cumulative Redeemable Preferred Units pursuant to the terms and conditions set forth in that certain Redemption Agreement by and between the Partnership and the Withdrawing Partner, dated as of                     , 20     ,                     5.20% Series W Cumulative Redeemable Preferred Units of the Withdrawing Partner have been redeemed by the Partnership and the General Partner desires to amend the Partnership Agreement to (a) set forth a revised list of all Partners of the Partnership as of the date hereof and (b) reflect the withdrawal of the Withdrawing Partner from the Partnership.

NOW, THEREFORE, in consideration of the mutual covenants and agreements contained herein, the parties hereby agree as follows:

1. This Amendment shall be deemed effective as of the date first above written. Except as amended hereby, the Partnership Agreement shall remain in full force and effect and shall be otherwise unaffected hereby.

2. To evidence the redemption of the 5.20% Series W Cumulative Redeemable Preferred Units of the Withdrawing Partner and the withdrawal of the Withdrawing Partner as a Limited Partner of the Partnership, attached as Schedule A is a current list of Partners of the Partnership as of the date hereof.

3. The Withdrawing Partner is entering into this Amendment to evidence its withdrawal as a Limited Partner of the Partnership.

4. This Amendment shall be deemed to be a contract made under the laws of the State of California and for all purposes shall be governed by and construed in accordance with the laws of such state.

IN WITNESS WHEREOF, the undersigned has caused this Amendment to be executed and delivered as of the date first above written.

GENERAL PARTNER

PS Business Parks, Inc.

By: ________________________________

     Name:

     Title:

WITHDRAWING LIMITED PARTNER

By: ________________________________

     Name:

     Title:

Exhibit C

Revised Exhibit A to the Partnership Agreement

Please see attached.

[Attach revised Exhibit A to the Partnership Agreement]

EXHIBIT C (October 20, 2016)

Name of Partner (Date of Admission)	Address	Agreed Value of Contributed  Property (1)		Partnership Units		Percentage Interest
General Partner:
Total Common Shares		$	737,917,000		27,120,001		78.78	%
Total Common Units		$	121,890,000		7,305,355		21.22	%
TOTAL (General & Limited Partners; not Preferred Units)		$	859,807,000		34,425,356		100.00	%
Limited Partners (Series S Preferred Units):
PS Business Parks, Inc. (January 18, 2012)	701 Western Avenue Glendale, CA 91201		230,000,000		9,200,000		20.73	%
Limited Partners (Series T Preferred Units):
PS Business Parks, Inc. (May 14, 2012)	701 Western Avenue Glendale, CA 91201		350,000,000		14,000,000		31.54	%
Limited Partners (Series U Preferred Units):
PS Business Parks, Inc. (September 14, 2012)	701 Western Avenue Glendale, CA 91201		230,000,000		9,200,000		20.73	%
Limited Partners (Series V Preferred Units):
PS Business Parks, Inc. (March 14, 2013)	701 Western Avenue Glendale, CA 91201		110,000,000		4,400,000		9.91	%
Limited Partners (Series W Preferred Units):
PS Business Parks, Inc. (October 20, 2016)	701 Western Avenue Glendale, CA 91201		189,750,000		7,590,000		17.09	%
TOTAL (Preferred Stock & Units)		$	1,109,750,000	$	44,390,000		100.00	%

(1) Agreed value is the agreed gross value of the property at the time of contribution less any liabilities to which the property is subject at that time.

EX-12

PS BUSINESS PARKS, INC.

EXHIBIT 12

STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Unaudited, in thousands, except ratio data)

			For The Three Months				For The Nine Months
			Ended September 30,				Ended September 30,
			2016		2015		2016		2015
Net income			$	38,994	$	46,277	$	105,397	$	115,941
Interest expense				129		3,354		5,436		9,979
Earnings available to cover fixed charges			$	39,123	$	49,631	$	110,833	$	125,920
Fixed charges (1)			$	243	$	3,637	$	6,289	$	10,792
Preferred stock dividends				13,833		17,609		41,498		47,853
Combined fixed charges and preferred distributions			$	14,076	$	21,246	$	47,787	$	58,645
Ratio of earnings to fixed charges				161.0		13.6		17.6		11.7
Ratio of earnings to combined
fixed charges and preferred distributions				2.8		2.3		2.3		2.1
	For the Years Ended December 31,
	2015		2014		2013		2012		2011
Income from continuing operations	$	148,970	$	204,700	$	116,144	$	94,395	$	99,563
Interest expense		13,270		13,509		16,074		20,618		5,455
Earnings from continuing operations available to
cover fixed charges	$	162,240	$	218,209	$	132,218	$	115,013	$	105,018
Fixed charges (1)	$	14,428	$	14,453	$	16,433	$	20,618	$	5,455
Preferred stock dividends		61,885		60,488		59,216		69,136		41,799
Preferred partnership distributions		—		—		—		323		(6,991)
Combined fixed charges and preferred distributions	$	76,313	$	74,941	$	75,649	$	90,077	$	40,263
Ratio of earnings from continuing operations to
fixed charges		11.2		15.1		8.0		5.6		19.3
Ratio of earnings from continuing operations to combined
fixed charges and preferred distributions		2.1		2.9		1.7		1.3		2.6

____________

(1)Fixed charges include interest expense and capitalized interest.

PS BUSINESS PARKS, INC.

EXHIBIT 12

STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Unaudited, in thousands, except ratio data)

Supplemental Disclosure of Ratio of Funds from Operations (“FFO”) to FixedCharges:

			For The Three Months				For The Nine Months
			Ended September 30,				Ended September 30,
			2016		2015		2016		2015
FFO			$	49,792	$	38,905	$	138,785	$	119,096
Interest expense				129		3,354		5,436		9,979
Preferred stock dividends				13,833		17,609		41,498		47,853
FFO available to cover fixed charges			$	63,754	$	59,868	$	185,719	$	176,928
Fixed charges (1)			$	243	$	3,637	$	6,289	$	10,792
Preferred stock dividends (2)				13,833		15,122		41,498		45,366
Combined fixed charges and preferred distributions paid			$	14,076	$	18,759	$	47,787	$	56,158
Ratio of available FFO to fixed charges				262.4		16.5		29.5		16.4
Ratio of available FFO to combined fixed charges and
preferred distributions paid				4.5		3.2		3.9		3.2
	For the Years Ended December 31,
	2015		2014		2013		2012		2011
FFO	$	164,244	$	162,196	$	165,845	$	134,472	$	149,797
Interest expense		13,270		13,509		16,074		20,618		5,455
Net income allocable to noncontrolling interests —
preferred units		—		—		—		323		(6,991)
Preferred stock dividends		61,885		60,488		59,216		69,136		41,799
FFO available to cover fixed charges	$	239,399	$	236,193	$	241,135	$	224,549	$	190,060
Fixed charges (1)	$	14,428	$	14,453	$	16,433	$	20,618	$	5,455
Preferred stock dividends (2)		59,398		60,488		59,216		51,969		41,799
Preferred partnership distributions (2)		—		—		—		174		398
Combined fixed charges and preferred distributions paid	$	73,826	$	74,941	$	75,649	$	72,761	$	47,652
Ratio of available FFO to fixed charges		16.6		16.3		14.7		10.9		34.8
Ratio of available FFO to combined fixed charges and
preferred distributions paid		3.2		3.2		3.2		3.1		4.0

____________

(1)Fixed charges include interest expense and capitalized interest.

(2)Excludes the issuance costs related to the redemption/repurchase of preferred equity and the gain on the repurchase of preferred equity.

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Maria R. Hawthorne, certify that:

1.I have reviewed this quarterly report on Form 10-Q of PS Business Parks, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/MariaR.Hawthorne

Name: MariaR.Hawthorne

Title: ChiefExecutiveOfficer

Date: October 28, 2016

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Edward A. Stokx, certify that:

1.I have reviewed this quarterly report on Form 10-Q of PS Business Parks, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Edward A. Stokx

Name: Edward A. Stokx

Title: Chief Financial Officer

Date: October 28, 2016

EX-32.1

Exhibit 32.1

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of PS Business Parks, Inc. (the “Company”) for the period ending September 30, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Maria R. Hawthorne, as Chief Executive Officer of the Company, and Edward A. Stokx, as Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Maria R. Hawthorne

Name: Maria R. Hawthorne

Title: Chief Executive Officer

Date: October 28, 2016

/s/ Edward A. Stokx

Name: Edward A. Stokx

Title: Chief Financial Officer

Date: October 28, 2016

XML

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 24, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Registrant Name	PS BUSINESS PARKS INC/CA
Entity Central Index Key	0000866368
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		27,120,001

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 5,016	$ 188,912
Real estate facilities, at cost:
Land	799,207	793,569
Buildings and improvements	2,238,804	2,215,515
Gross real estate investment property	3,038,011	3,009,084
Accumulated depreciation	(1,147,187)	(1,082,603)
Net real estate investment property	1,890,824	1,926,481
Land held for future development	6,081	6,081
Total real estate investments	1,896,905	1,932,562
Investment in and advances to unconsolidated joint venture	55,536	26,736
Rent receivable, net	2,013	2,234
Deferred rent receivable, net	29,717	28,327
Other assets	10,597	7,887
Total assets	1,999,784	2,186,658
LIABILITIES AND EQUITY
Accrued and other liabilities	83,093	76,059
Credit facility	60,000
Mortgage note payable		250,000
Total liabilities	143,093	326,059
Commitments and contingencies
PS Business Parks, Inc.'s shareholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, 36,800 shares issued and outstanding at September 30, 2016 and December 31, 2015	920,000	920,000
Common stock, $0.01 par value, 100,000,000 shares authorized, 27,120,001 and 27,034,073 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	270	269
Paid-in capital	729,957	722,009
Cumulative net income	1,467,323	1,375,421
Cumulative distributions	(1,459,633)	(1,357,203)
Total PS Business Parks, Inc.'s shareholders' equity	1,657,917	1,660,496
Noncontrolling interests:
Common units	198,774	200,103
Total noncontrolling interests	198,774	200,103
Total equity	1,856,691	1,860,599
Total liabilities and equity	$ 1,999,784	$ 2,186,658

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	36,800	36,800
Preferred stock, shares outstanding	36,800	36,800
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	27,120,001	27,034,073
Common stock, shares outstanding	27,120,001	27,034,073

XML

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Rental income	$ 97,340	$ 93,322	$ 289,272	$ 278,585
Facility management fees	130	130	389	410
Total operating revenues	97,470	93,452	289,661	278,995
Expenses:
Cost of operations	30,796	30,448	92,440	92,251
Depreciation and amortization	24,631	25,985	74,886	79,243
General and administrative	2,970	3,276	11,982	10,172
Total operating expenses	58,397	59,709	179,308	181,666
Other income and (expense):
Interest and other income	76	154	551	406
Interest and other expense	(155)	(3,368)	(5,507)	(10,029)
Total other income and (expense)	(79)	(3,214)	(4,956)	(9,623)
Gain on sale of real estate facilities		15,748		28,235
Net income	38,994	46,277	105,397	115,941
Net income allocable to noncontrolling interests:
Noncontrolling interests - common units	5,315	6,087	13,495	14,467
Total net income allocable to noncontrolling interests	5,315	6,087	13,495	14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders	13,833	17,609	41,498	47,853
Restricted stock unit holders	128	97	387	237
Common shareholders	19,718	22,484	50,017	53,384
Total net income allocable to PS Business Parks, Inc.	33,679	40,190	91,902	101,474
Net income	$ 38,994	$ 46,277	$ 105,397	$ 115,941
Net income per common share:
Basic	$ 0.73	$ 0.83	$ 1.85	$ 1.98
Diluted	$ 0.72	$ 0.83	$ 1.84	$ 1.97
Weighted average common shares outstanding:
Basic	27,103	26,985	27,076	26,956
Diluted	27,201	27,049	27,166	27,034
Dividends declared per common share	$ 0.75	$ 0.60	$ 2.25	$ 1.60

XML

Consolidated Statement Of Equity - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Paid-In Capital [Member]	Cumulative Net Income [Member]	Cumulative Distributions [Member]	Total PS Business Parks, Inc.'s Shareholders' Equity [Member]	Noncontrolling Interests [Member]	Total
Balances, value at Dec. 31, 2015	$ 920,000	$ 269	$ 722,009	$ 1,375,421	$ (1,357,203)	$ 1,660,496	$ 200,103	$ 1,860,599
Balances, shares at Dec. 31, 2015	36,800	27,034,073
Exercise of stock options, value		$ 1	2,955			2,956		2,956
Exercise of stock options, shares		49,882
Stock compensation, net, value			6,606			6,606		6,606
Stock compensation, net, shares		36,046
Net income								105,397
Net income allocable to PS Business Parks, Inc				91,902		91,902		91,902
Net income, noncontrolling interests							13,495	13,495
Distributions:
Preferred stock					(41,498)	(41,498)		(41,498)
Common stock					(60,932)	(60,932)		(60,932)
Noncontrolling interests							(16,437)	(16,437)
Adjustment to noncontrolling interests in underlying operating partnership			(1,613)			(1,613)	1,613
Balances, value at Sep. 30, 2016	$ 920,000	$ 270	$ 729,957	$ 1,467,323	$ (1,459,633)	$ 1,657,917	$ 198,774	$ 1,856,691
Balances, shares at Sep. 30, 2016	36,800	27,120,001

XML

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 105,397	$ 115,941
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	74,886	79,243
In-place lease adjustment	(437)	(1,004)
Tenant improvement reimbursements, net of lease incentives	(1,253)	(1,418)
Gain on sale of real estate facilities		(28,236)
Stock compensation	8,933	6,949
Increase in receivables and other assets	(4,248)	(4,258)
Increase in accrued and other liabilities	4,395	11,398
Total adjustments	82,276	62,674
Net cash provided by operating activities	187,673	178,615
Cash flows from investing activities:
Capital expenditures to real estate facilities	(24,230)	(35,067)
Capital expenditures to land held for development		(2,809)
Investment in and advances to unconsolidated joint venture	(28,800)
Acquisition of real estate facilities	(12,628)
Proceeds from sale of real estate facilities		55,160
Net cash (used in) provided by investing activities	(65,658)	17,284
Cash flows from financing activities:
Borrowings on credit facility	116,000
Repayment of borrowings on credit facility	(56,000)
Repayment of mortgage note payable	(250,000)
Proceeds from the exercise of stock options	2,956	3,987
Distributions paid to preferred shareholders	(41,498)	(45,366)
Distributions paid to noncontrolling interests	(16,437)	(11,689)
Distributions paid to common shareholders	(60,932)	(43,156)
Net cash used in financing activities	(305,911)	(96,224)
Net (decrease) increase in cash and cash equivalents	(183,896)	99,675
Cash and cash equivalents at the beginning of the period	188,912	152,467
Cash and cash equivalents at the end of the period	5,016	252,142
Adjustment to noncontrolling interests in underlying operating partnership:
Noncontrolling interests - common units	1,613	2,149
Paid-in capital	$ (1,613)	(2,149)
Non-cash distributions related to the redemption of preferred stock:
Paid-in capital		2,487
Cumulative distributions		(2,487)
Preferred stock called for redemption:
Preferred stock called for redemption and reclassified to liabilities		75,000
Preferred stock called for redemption and reclassified from equity		$ (75,000)

XML

Organization And Description Of Business

9 Months Ended

Sep. 30, 2016

Organization And Description Of Business [Abstract]

Organization And Description Of Business

1. Organization and description of business

PS Business Parks, Inc. (“PSB”) was incorporated in the state of California in 1990. As of September 30, 2016, PSB owned 77.9% of the common partnership units (the “common partnership units”) of PS Business Parks, L.P. (the “Operating Partnership”). The remaining common partnership units are owned by Public Storage (“PS”). PSB, as the sole general partner of the Operating Partnership, has full, exclusive and complete responsibility and discretion in managing and controlling the Operating Partnership. PSB and its subsidiaries, including the Operating Partnership, are collectively referred to as the “Company.” Assuming issuance of the Company’s common stock upon redemption of its common partnership units, PS would own 42.0% (or 14.5 million shares) of the outstanding shares of the Company’s common stock.

The Company is a fully-integrated, self-advised and self-managed real estate investment trust (“REIT”) that owns, operates, acquires and develops commercial properties, primarily multi-tenant flex, office and industrial space. As of September 30, 2016, the Company owned and operated 28.2 million rentable square feet of commercial space in six states. The Company also manages 737,000 rentable square feet on behalf of PS.

References to the number of properties or square footage are unaudited and outside the scope of the Company’s independent registered public accounting firm’s review of the Company’s financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States).

XML

Summary Of Significant Accounting Policies

9 Months Ended

Sep. 30, 2016

Summary Of Significant Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

2. Summary of significant accounting policies

Basis of presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2016 are not necessarily indicative of the results that may be expected for the year ended December 31, 2016. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.  

Consolidation and Equity Method of Accounting

The Company accounts for its investment in a joint venture that it has significant influence over, but does not control, using the equity method of accounting eliminating intra-entity profits and losses as if the joint venture were a consolidated subsidiary.

The accompanying consolidated financial statements include the accounts of PSB and the Operating Partnership. All significant inter-company balances and transactions have been eliminated in the consolidated financial statements.

The Company consolidates all variable interest entities (each a “VIE”) for which it is the primary beneficiary. Generally, a VIE is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership may be considered a VIE if the limited partners do not participate in operating decisions. Under this criteria, the Operating Partnership is considered a VIE. The Company’s significant asset is its investment in the Operating Partnership, and consequently, substantially all of the Company’s assets and liabilities represent those assets and liabilities of the Operating Partnership. All of the Company’s debt is an obligation of the Operating Partnership.

Noncontrolling interests

The Company’s noncontrolling interests are reported as a component of equity separate from the parent’s equity. Purchases or sales of equity interests that do not result in a change in control are accounted for as equity transactions. In addition, net income attributable to the noncontrolling interests is included in consolidated net income on the face of the income statement and, upon a gain or loss of control, the interests purchased or sold, as well as any interests retained, are recorded at fair value with any gain or loss recognized in earnings. At the end of each reporting period, the Company determines the amount of equity (book value of net assets) which is allocable to the noncontrolling interests based upon the ownership interest, and an adjustment is made to the noncontrolling interests, with a corresponding adjustment to paid-in capital, to reflect the noncontrolling interests’ equity interest in the Company.

Use of estimates

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates.

Allowance for doubtful accounts

The Company monitors the collectability of its receivable balances including the deferred rent receivable on an ongoing basis. Based on these reviews, the Company maintains an allowance for doubtful accounts for estimated losses resulting from the possible inability of tenants to make contractual rent payments to the Company. A provision for doubtful accounts is recorded during each period. The allowance for doubtful accounts is netted against tenant and other receivables on the consolidated balance sheets. Tenant receivables are net of an allowance for uncollectible accounts totaling $400,000 at September 30, 2016 and December 31, 2015. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $919,000 and $909,000 at September 30, 2016 and December 31, 2015, respectively.

Financial instruments

The methods and assumptions used to estimate the fair value of financial instruments are described below. The Company has estimated the fair value of financial instruments using available market information and appropriate valuation methodologies. Considerable judgment is required in interpreting market data to develop estimates of market value. Accordingly, estimated fair values are not necessarily indicative of the amounts that could be realized in current market exchanges. The Company determines the estimated fair value of financial assets and liabilities utilizing a hierarchy of valuation techniques based on whether the inputs to a fair value measurement are considered to be observable or unobservable in a marketplace. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. This hierarchy requires the use of observable market data when available. The following is the fair value hierarchy:

* Level 1—quoted prices for identical instruments in active markets;

* Level 2—quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and

* Level 3—fair value measurements derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Financial assets that are exposed to credit risk consist primarily of cash and cash equivalents and receivables. The Company considers all highly liquid investments with a remaining maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents, which consist primarily of money market investments, are only invested in entities with an investment grade rating. Receivables are comprised of balances due from a large number of customers. Balances that the Company expects to become uncollectible are reserved for or written off. Due to the short period to maturity of the Company’s cash and cash equivalents, accounts receivable, other assets and accrued and other liabilities, the carrying values as presented on the consolidated balance sheets are reasonable estimates of fair value.

Carrying values of the Company’s mortgage note payable and unsecured credit facility approximate fair value. The characteristics of these financial instruments, market data and other comparative metrics utilized in determining these fair values are “Level 2” inputs.

Real estate facilities

Real estate facilities are recorded at cost. Costs related to the renovation or improvement of the properties are capitalized. Expenditures for repairs and maintenance are expensed as incurred. Expenditures that are expected to benefit a period greater than two years and exceed $2,000 are capitalized and depreciated over their estimated useful life. Buildings and improvements are depreciated using the straight-line method over their estimated useful lives, which generally range from five to 30 years. Transaction costs, which include tenant improvements and lease commissions, of $1,000 or more for leases with terms greater than one year are capitalized and depreciated over their estimated useful lives. Transaction costs less than $1,000 or for leases of one year or less are expensed as incurred.

Land held for future development

Property taxes, insurance, interest and costs essential to the development of property for its intended use are capitalized during the period of development. Upon classification of an asset as held for development, depreciation of the asset is ceased.

Properties held for disposition

An asset is classified as an asset held for disposition when it meets certain requirements, which include, among other criteria, the approval of the sale of the asset, the marketing of the asset for sale and the expectation by the Company that the sale will likely occur within the next 12 months. Upon classification of an asset as held for disposition, depreciation of the asset is ceased, and the net book value of the asset is included on the balance sheet as properties held for disposition.

Intangible assets/liabilities

Intangible assets and liabilities include above-market and below-market in-place lease values of acquired properties based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. The capitalized above-market and below-market lease values (included in other assets and accrued liabilities in the accompanying consolidated balance sheets) are amortized to rental income over the remaining non-cancelable terms of the respective leases.

As of September 30, 2016, the value of in-place leases resulted in net intangible assets of $1.2 million, net of $9.0 million of accumulated amortization with a weighted average amortization period of 9.2 years, and net intangible liabilities of $990,000, net of $9.8 million of accumulated amortization with a weighted average amortization period of 6.3 years. As of December 31, 2015, the value of in-place leases resulted in net intangible assets of $1.7 million, net of $8.6 million of accumulated amortization and net intangible liabilities of $1.8 million, net of $9.0 million of accumulated amortization.

The Company recorded net increases in rental income of $106,000 and $341,000 for the three months ended September 30, 2016 and 2015, respectively, and $437,000 and $1.0million for the nine months ended September 30, 2016 and 2015, respectively, due to the amortization of net intangible liabilities resulting from the above-market and below-market lease values.

Evaluation of asset impairment

The Company evaluates its assets used in operations for impairment by identifying indicators of impairment and by comparing the sum of the estimated undiscounted future cash flows for each asset to the asset’s carrying value. When indicators of impairment are present and the sum of the estimated undiscounted future cash flows is less than the carrying value of such asset, an impairment loss is recorded equal to the difference between the asset’s current carrying value and its value based on discounting its estimated future cash flows. In addition, the Company evaluates its assets held for disposition for impairment. Assets held for disposition are reported at the lower of their carrying value or fair value, less cost of disposition. At September 30, 2016, the Company did not consider any assets to be impaired.

Stock compensation

All share-based payments to employees, including grants of employee stock options, are recognized as stock compensation in the Company’s income statement based on their grant date fair values. See Note 12.

Revenue and expense recognition

The Company must meet four basic criteria before revenue can be recognized: persuasive evidence of an arrangement exists; the delivery has occurred or services have been rendered; the fee is fixed or determinable; and collectability is reasonably assured. All leases are classified as operating leases. Rental income is recognized on a straight-line basis over the terms of the leases. Straight-line rent is recognized for all tenants with contractual fixed increases in rent that are not included on the Company’s credit watch list. Deferred rent receivable represents rental revenue recognized on a straight-line basis in excess of billed rents. Reimbursements from tenants for real estate taxes and other recoverable operating expenses are recognized as rental income in the period the applicable costs are incurred. Property management fees are recognized in the period earned.

Costs incurred in connection with leasing (primarily tenant improvements and lease commissions) are capitalized and amortized over the lease period.

Gains from sales of real estate facilities

The Company recognizes gains from sales of real estate facilities at the time of sale using the full accrual method, provided that various criteria related to the terms of the transactions and any subsequent involvement by the Company with the properties sold are met. If the criteria are not met, the Company defers the gains and recognizes them when the criteria are met or uses the installment or cost recovery methods as appropriate under the circumstances.

General and administrative expenses

General and administrative expenses include executive and other compensation, office expenses, professional fees, acquisition transaction costs, state income taxes and other such administrative items.

Income taxes

The Company has qualified and intends to continue to qualify as a REIT, as defined in Section 856 of the Internal Revenue Code of 1986, as amended. As a REIT, the Company is not subject to federal income tax to the extent that it distributes its REIT taxable income to its shareholders. A REIT must distribute at least 90% of its taxable income each year. In addition, REITs are subject to a number of organizational and operating requirements. The Company may be subject to certain state and local taxes on its income and property and to federal income and excise taxes on its undistributed taxable income. The Company believes it met all organization and operating requirements to maintain its REIT status during 2015 and intends to continue to meet such requirements for 2016. Accordingly, no provision for income taxes has been made in the accompanying consolidated financial statements.

The Company can recognize a tax benefit only if it is “more likely than not” that a particular tax position will be sustained upon examination or audit. To the extent that the “more likely than not” standard has been satisfied, the benefit associated with a position is measured as the largest amount that is greater than 50% likely of being recognized upon settlement. As of September 30, 2016, the Company did not recognize any tax benefit for uncertain tax positions.

Accounting for preferred equity issuance costs

The Company records issuance costs as a reduction to paid-in capital on its balance sheet at the time the preferred securities are issued and reflects the carrying value of the preferred equity at the stated value. Such issuance costs are recorded as non-cash preferred equity distributions at the time the Company notifies the holders of preferred stock of its intent to redeem such shares.

Net income allocation

Net income was allocated as follows (in thousands):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to noncontrolling interests:
Noncontrolling interests—common units	$	5,315	$	6,087	$	13,495	$	14,467
Total net income allocable to noncontrolling interests		5,315		6,087		13,495		14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders
Distributions to preferred shareholders		13,833		15,122		41,498		45,366
Non-cash distributions related to the redemption of
preferred stock		—		2,487		—		2,487
Total net income allocable to preferred shareholders		13,833		17,609		41,498		47,853
Restricted stock unit holders		128		97		387		237
Common shareholders		19,718		22,484		50,017		53,384
Total net income allocable to PS Business Parks, Inc.		33,679		40,190		91,902		101,474
Net income	$	38,994	$	46,277	$	105,397	$	115,941

Net income per common share

Per share amounts are computed using the number of weighted average common shares outstanding. “Diluted” weighted average common shares outstanding includes the dilutive effect of stock options and restricted stock units under the treasury stock method. “Basic” weighted average common shares outstanding excludes such effect. The Company's restricted stock units are participating securities and are included in the computation of basic and diluted weighted average common shares outstanding. The Company’s restricted stock unit holders are paid non-forfeitable dividends in excess of the expenserecorded which results in a reduction in net income allocable to common shareholders and unit holders.

Earnings per share has been calculated as follows (in thousands, except per share amounts):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to common shareholders	$	19,718	$	22,484	$	50,017	$	53,384
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		27,103		26,985		27,076		26,956
Net effect of dilutive stock compensation—based on
treasury stock method using average market price		98		64		90		78
Diluted weighted average common shares outstanding		27,201		27,049		27,166		27,034
Net income per common share—Basic	$	0.73	$	0.83	$	1.85	$	1.98
Net income per common share—Diluted	$	0.72	$	0.83	$	1.84	$	1.97

No options were excluded from the computation of diluted net income per share for the three months ended September 30, 2016as no options were considered anti-dilutive. Options to purchase 25,000 shares were excluded from the computation of diluted net income per share for the nine months ended September 30, 2016as such options were considered anti-dilutive.Options to purchase 46,000 shares were excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2015as such options were considered anti-dilutive.

Segment reporting

The Company views its operations as one segment.

Reclassifications

Certain reclassifications have been made to the consolidated financial statements for 2015 in order to conform to the 2016 presentation.

Recently issued accounting standards

In May, 2014, the Financial Accounting Standards Board(“FASB”) issued Accounting Standard Update (“ASU”) 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. The new accounting guidance establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. This guidance is currently effective for the Company’s fiscal year beginning January 1, 2018. Early adoption is permitted for the Company’s fiscal year beginning January 1, 2017. The amendment allows for full retrospective adoption applied to all periods presented or modified retrospective adoption with the cumulative effect of initially applying the standard recognized at the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In August, 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern for a period of one year after the date that the financial statements are issued. This guidance is effective for annual periods ending after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Company anticipates no impact upon adoption of the new accounting guidance on its consolidated financial statements.

In February, 2015, the FASB issued ASU 2015-02, Consolidation – Amendments to the Consolidation Analysis, which amended the existing accounting standards for consolidation under both the variable interest model and the voting model. On January 1, 2016, the Company adopted this guidance and as the Operating Partnership is already consolidated in the balance sheets of the Company, the identification of this entity as a VIE has no impact on the consolidated financial statements of the Company. Additionally, the Company’s accounting for its investment in its joint venture was not impacted by the adoption of this guidance.

In February, 2016, the FASB issued ASU 2016-02, Leases, which amends the existing accounting standards for lease accounting. The accounting applied by a lessor is largely unchanged under this guidance. However, the guidance requires lessees to recognize assets and liabilities for most leases on the balance sheet. This guidance is effective for annual periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted. The guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In March, 2016, the FASB issued ASU 2016-09,  Improvements to Employee Share-Based Payment Accounting, to amend the accounting guidance for share-based payment accounting. The guidance is intended to simplify the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods and early adoption is permitted. The Company is currently assessing the impact of the guidance on its consolidated financial statements.

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Real Estate Facilities

9 Months Ended

Sep. 30, 2016

Real Estate Facilities [Abstract]

Real Estate Facilities

3. Real estate facilities

The activity in real estate facilities for the nine months ended September 30, 2016 is as follows (in thousands):

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2015	$	793,569	$	2,215,515	$	(1,082,603)	$	1,926,481
Acquisition of real estate facilities		5,638		7,637		—		13,275
Capital expenditures, net		—		25,954		—		25,954
Disposals		—		(10,302)		10,302		—
Depreciation and amortization		—		—		(74,886)		(74,886)
Balances at September 30, 2016	$	799,207	$	2,238,804	$	(1,147,187)	$	1,890,824

The purchase price of acquired properties is recorded to land, buildings and improvements (including tenant improvements, unamortized lease commissions, acquired in-place lease values, and tenant relationships, if any) and intangible assets and liabilities associated with the value of above-market and below-market leases based on their respective estimated fair values. Acquisition-related costs are expensed as incurred.

In determining the fair value of the tangible assets of the acquired properties, management considers the value of the properties as if vacant as of the acquisition date. Management must make significant assumptions in determining the value of assets acquired and liabilities assumed. Using different assumptions in the recording of the purchase cost of the acquired properties would affect the timing of recognition of the related revenue and expenses. Amounts recorded to land are derived from comparable sales of land within the same region. Amounts recorded to buildings and improvements, tenant improvements and unamortized lease commissions are based on current market replacement costs and other market information. The amount recorded to acquired in-place leases is determined based on management’s assessment of current market conditions and the estimated lease-up periods for the respective spaces.

On September 28, 2016, the Company acquiredtwomulti-tenant office buildings  aggregating226,000 square feet  in Rockville, Maryland, for a purchase price of $13.3 million. The buildings are located within Shady Grove Executive Park, where the Company owns three other buildings comprised of 352,000 square feet.

The following table summarizes the assets acquired and liabilities assumed for the nine months ended September 30, 2016 (in thousands):

	2016
Land	$	5,638
Buildings and improvements		7,637
Below-market in-place lease value		(25)
Total purchase price		13,250
Net operating assets acquired and liabilities assumed		(622)
Total cash paid	$	12,628

During the nine months ended September 30, 2015, the Company completed the sale of assets in Tempe, Arizona, Sacramento, California, Milwaukie, Oregon and Redmond, Washington. The assets sold aggregated574,000 square feet and generated net proceeds of $55.2 million, which resulted in an aggregate gain of $28.2 million.

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Investment In And Advances To Unconsolidated Joint Venture

9 Months Ended

Sep. 30, 2016

Investment In And Advances To Unconsolidated Joint Venture [Abstract]

Investment In And Advances To Unconsolidated Joint Venture

4. Investment in and advances to unconsolidated joint venture

In 2013, the Company entered into a joint venture known as Amherst JV LLC (the “Joint Venture”), in which it has a 95.0% economic interest, with an unrelated real estate development company for the purpose of developing a 395-unit multi-family building on a five-acre site within its Westpark Business Park in Tysons, Virginia. The Company contributed the site, along with capitalized improvements, to the Joint Venture on October 5, 2015. Demolition, site preparation and construction commenced in October, 2015. The Company’s partner in the Joint Venture serves as the managing member, with mutual consent from both the Company and the managing member required for all significant decisions. As such, the Company accounts for its investment in the Joint Venture using the equity method.

Along with the equity capital the Company has committed to the Joint Venture, the Company has also agreed to provide the Joint Venture with a construction loan in the amount of $75.0 million. The Joint Venture will pay interest under the construction loan at a rate equal to the London Interbank Offered Rate (“LIBOR”) plus 2.25%. The loan will mature on April 5, 2019. The Company has reflected the aggregate value of the contributed site, its’ equity contributions, capitalized interest and loan advances to date as investment in and advances to unconsolidated joint venture. The aggregate amount of development costs are estimated to be $105.6 million (excluding unrealized land appreciation), of which the Company is committed to funding $75.0 million through a construction loan in addition to total equity and capital contributions of $28.5 million, which includes a land basis of $15.3 million, to the Joint Venture.

The Company’s investment in and advances to unconsolidated joint venture was $55.5 million and $26.7 million as of September 30, 2016 and December 31, 2015, respectively. For the nine months ended September 30, 2016, the Company made loan advances of $22.3 million, capital contributions of $5.7 million and capitalized $854,000of interest. For the nine months ended September 30, 2015, the Company capitalized costs of $2.8 million related to this development, of which $813,000was related to capitalized interest. The Company made no loan advances to the Joint Venture in 2015.

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Leasing Activity

9 Months Ended

Sep. 30, 2016

Leasing Activity [Abstract]

Leasing Activity

5. Leasing activity

The Company leases space in its real estate facilities to tenants primarily under non-cancelable leases generally ranging from one to 10 years. Future minimum rental revenues, excluding recovery of operating expenses under these leases, are as follows as of September 30, 2016(in thousands):

2016	$	73,197
2017		257,375
2018		193,217
2019		130,527
2020		84,301
Thereafter		157,499
Total	$	896,116

In addition to minimum rental payments, certain tenants reimburse the Company for their pro rata share of specified operating expenses. Such reimbursements amounted to $20.3 million and $19.5 million for the three months ended September 30, 2016 and 2015, respectively, and $61.6 million and $59.5 million for the nine months ended September 30, 2016 and 2015, respectively. These amounts are included as rental income in the accompanying consolidated statements of income.

Leases accounting for 3.3% of total leased square footage are subject to termination options, of which 1.5% of total leased square footage have termination options exercisable through December 31, 2016. In general, these leases provide for termination payments should the termination options be exercised. The future minimum rental revenues in the above table assume such options are not exercised.

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Bank Loans

9 Months Ended

Sep. 30, 2016

Bank Loans [Abstract]

Bank Loans

6. Bank loans

The Company has a line of credit (the “Credit Facility”) with Wells Fargo Bank, National Association (“Wells Fargo”). The Credit Facility has a borrowing limit of $250.0 million and expires May 1, 2019. The rate of interest charged on borrowings is based on the LIBOR plus 0.875% to LIBOR plus 1.70% depending on the Company’s credit ratings. Currently, the Company’s rate under the Credit Facility is LIBOR plus 0.875%. In addition, the Company is required to pay an annual facility fee ranging from 0.125% to 0.30% of the borrowing limit depending on the Company’s credit ratings (currently 0.125%). As of September 30, 2016, the Company had $60.0 million outstanding on the Credit Facility at an interest rate of 1.36%.  Subsequent to September 30, 2016, the Company repaid the outstanding balance in full. The Company had no balance outstanding on the Credit Facility at December 31, 2015. The Company had $596,000and $769,000 of unamortized commitment fees as of September 30, 2016 and December 31, 2015, respectively, which is included in other assets in the accompanying consolidated balance sheets. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance with as of September 30, 2016. Interest on outstanding borrowings is payable monthly.  

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Mortgage Note Payable

9 Months Ended

Sep. 30, 2016

Mortgage Note Payable [Abstract]

Mortgage Note Payable

7. Mortgage note payable

On June 1, 2016, the Company repaid in full the $250.0 million mortgage note which had a fixed interest rate of 5.45%.

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Noncontrolling Interests

9 Months Ended

Sep. 30, 2016

Noncontrolling Interests [Abstract]

Noncontrolling Interests

8. Noncontrolling interests

As described in Note 2, the Company reports noncontrolling interests within equity in the consolidated financial statements, but separate from the Company’s shareholders’ equity. In addition, net income allocable to noncontrolling interests is shown as a reduction from net income in calculating net income allocable to common shareholders.

Common partnership units

The Company presents the accounts of PSB and the Operating Partnership on a consolidated basis. Ownership interests in the Operating Partnership that can be redeemed for common stock, other than PSB’s interest, are classified as noncontrolling interests—common units in the consolidated financial statements. Net income allocable to noncontrolling interests—common units consists of the common units’ share of the consolidated operating results after allocation to preferred units and shares. Beginning one year from the date of admission as a limited partner (common units) and subject to certain limitations described below, each limited partner other than PSB has the right to require the redemption of its partnership interest.

A limited partner (common units) that exercises its redemption right will receive cash from the Operating Partnership in an amount equal to the market value (as defined in the Operating Partnership Agreement) of the partnership interests redeemed. In lieu of the Operating Partnership redeeming the common units for cash, PSB, as general partner, has the right to elect to acquire the partnership interest directly from a limited partner exercising its redemption right, in exchange for cash in the amount specified above or by issuance of one share of PSB common stock for each unit of limited partnership interest redeemed.

A limited partner (common units) cannot exercise its redemption right if delivery of shares of PSB common stock would be prohibited under the applicable articles of incorporation, or if the general partner believes that there is a risk that delivery of shares of common stock would cause the general partner to no longer qualify as a REIT, would cause a violation of the applicable securities laws, or would result in the Operating Partnership no longer being treated as a partnership for federal income tax purposes.

At September 30, 2016, there were 7,305,355 common units owned by PS, which are accounted for as noncontrolling interests. Combined with PS’s existing common stock ownership, on a fully converted basis, PS has a combined ownership of 42.0% (or 14.5 million shares) of the Company’s common equity.

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Related Party Transactions

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Related Party Transactions

9. Related party transactions

The Operating Partnership manages industrial, office and retail facilities for PS. These facilities, all located in the United States, operate under the “Public Storage” or “PS Business Parks” names. The PS Business Parks name and logo are owned by PS and licensed to the Company under a non-exclusive, royalty-free license agreement. The license can be terminated by either party for any reason with six months written notice.

Under the property management contract with PS, the Operating Partnership is compensated based on a percentage of the gross revenues of the facilities managed. Under the supervision of the property owners, the Operating Partnership coordinates rental policies, rent collections, marketing activities, the purchase of equipment and supplies, maintenance activities, and the selection and engagement of vendors, suppliers and independent contractors. In addition, the Operating Partnership assists and advises the property owners in establishing policies for the hire, discharge and supervision of employees for the operation of these facilities, including property managers and leasing, billing and maintenance personnel.

The property management contract with PS is for a seven-year term with the agreement automatically extending for an additional one-year period upon each one-year anniversary of its commencement (unless cancelled by either party). Either party can give notice of its intent to cancel the agreement upon expiration of its current term. Management fee revenues under this contract were $130,000 for the three months ended September 30, 2016 and 2015 and $389,000 and $410,000 for the nine months ended September 30, 2016 and 2015, respectively.

PS also provides property management services for the self-storage component of two assets owned by the Company. These self-storage facilities, located in Palm Beach County, Florida, operate under the “Public Storage” name.

Under the property management contract, PS is compensated based on a percentage of the gross revenues of the facilities managed. Under the supervision of the Company, PS coordinates rental policies, rent collections, marketing activities, the purchase of equipment and supplies, maintenance activities, and the selection and engagement of vendors, suppliers and independent contractors. In addition, PS is responsible for establishing the policies for the hire, discharge and supervision of employees for the operation of these facilities, including on-site managers, assistant managers and associate managers.

Either the Company or PS can cancel the property management contract upon 60 days’ notice. Management fee expenses under the contract were $22,000and $21,000for the three months ended September 30, 2016 and 2015, respectively, and $64,000 and$59,000 for the nine months ended September 30, 2016 and 2015, respectively.  

Pursuant to a cost sharing and administrative services agreement, the Company shares costs with PS for certain administrative services and rental of corporate office space, which are allocated to PS in accordance with a methodology intended to fairly allocate those costs. These costs totaled $123,000 and  $117,000 for the three months ended September 30, 2016 and 2015, respectively,  and $370,000 and$352,000 for the nine months ended September 30, 2016 and 2015, respectively.

The Company had net amounts due to PS of $131,000 atSeptember 30, 2016 and due from PS of $57,000 atDecember 31, 2015, respectively, for these contracts, as well as for certain operating expenses paid by the Company on behalf of PS.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2016

Shareholders' Equity [Abstract]

Shareholders' Equity

10. Shareholders’ equity

Preferred stock

As of September 30, 2016 and December 31, 2015, the Company had the following series of preferred stock outstanding:

		Earliest Potential	Dividend	Shares	Amount
Series	Issuance Date	Redemption Date	Rate	Outstanding	(in thousands)
Series S	January, 2012	January, 2017	6.450%	9,200	$	230,000
Series T	May, 2012	May, 2017	6.000%	14,000		350,000
Series U	September, 2012	September, 2017	5.750%	9,200		230,000
Series V	March, 2013	March, 2018	5.700%	4,400		110,000
Total				36,800	$	920,000

On October 20, 2016, the Company issued $189.8 million or 7,590,000 depositary shares, each representing 1/1,000 of a share of the 5.20% Cumulative Preferred Stock, Series W, at $25.00 per depositary share.  The 5.20% Series W Cumulative Redeemable Preferred Units are non-callable for five years and have no mandatory redemption.

During the three months ended September 30, 2015, the Company called for the redemption of its 6.875% Cumulative Preferred Stock, Series R, at its par value of $75.0 million and subsequently completed the redemption on October 15, 2015. The Company reported the non-cash distributions of $2.5 million, representing the original issuance costs, as a reduction of net income allocable to common shareholders and unit holders for the three and nine months ended September 30, 2015.

The Company recorded $13.8 million and $17.6 million in distributions to its preferred shareholders for the three months ended September 30, 2016 and 2015, respectively, and $41.5 million and $47.9 million in distributions to its preferred shareholders for the nine months ended September 30, 2016 and 2015, respectively.

Holders of the Company’s preferred stock will not be entitled to vote on most matters, except under certain conditions. In the event of a cumulative arrearage equal to six quarterly dividends, the holders of the preferred stock will have the right to elect two additional members to serve on the Company’s Board of Directors until all events of default have been cured. At September 30, 2016, there were no dividends in arrears.

Except under certain conditions relating to the Company’s qualification as a REIT, the preferred stock is not redeemable prior to the previously noted redemption dates. On or after the respective redemption dates, the respective series of preferred stock will be redeemable, at the option of the Company, in whole or in part, at $25.00 per depositary share, plus any accrued and unpaid dividends. The Company had $29.3 million of deferred costs in connection with the issuance of preferred stock as of September 30, 2016 and December 31, 2015, which the Company will report as additional non-cash distributions upon notice of its intent to redeem such shares.

Common stock

No shares of common stock were repurchased under the board-approved common stock repurchase program during either of the nine months ended September 30, 2016 and 2015.

The Company paid $20.3 million ($0.75 per common share) and $16.2 million ($0.60 per common share) in distributions to its common shareholders for the three months ended September 30, 2016 and 2015, respectively, and $60.9 million ($2.25 per common share) and $43.2 million ($1.60 per common share) in distributions to its common shareholders for the nine months ended September 30, 2016 and 2015, respectively.

Equity stock

In addition to common and preferred stock, the Company is authorized to issue 100.0 million shares of Equity Stock. The Articles of Incorporation provide that Equity Stock may be issued from time to time in one or more series and give the Board of Directors broad authority to fix the dividend and distribution rights, conversion and voting rights, redemption provisions and liquidation rights of each series of Equity Stock.

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Commitments And Contingencies

9 Months Ended

Sep. 30, 2016

Commitments And Contingencies [Abstract]

Commitments And Contingencies

11. Commitments and contingencies

The Company currently is neither subject to any other material litigation nor, to management’s knowledge, is any material litigation currently threatened against the Company other than routine litigation and administrative proceedings arising in the ordinary course of business.

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Stock Compensation

9 Months Ended

Sep. 30, 2016

Stock Compensation [Abstract]

Stock Compensation

12. Stock compensation

PSB has a 2003 Stock Option and Incentive Plan (the “2003 Plan”) and a 2012 Equity and Performance-Based Incentive Compensation Plan (the “2012 Plan”) covering 1.5 million and 1.0 million shares of PSB’s common stock, respectively. Under the 2003 Plan and 2012 Plan, PSB has granted non-qualified options to certain directors, officers and key employees to purchase shares of PSB’s common stock at a price not less than the fair market value of the common stock at the date of grant. Additionally, under the 2003 Plan and 2012 Plan, PSB has granted restricted shares of common stock to certain directors and restricted stock units to officers and key employees.

The weighted average grant date fair value of options granted during the  nine months ended September 30, 2016 and 2015 was $9.05per share and $8.49 per share, respectively. The Company has calculated the fair value of each option grant on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions used for grants during the  nine months ended September 30, 2016 and 2015, respectively: a dividend yield of 2.9% and 2.5%; expected volatility of 15.5% and 16.1%; expected life of five years; and risk-free interest rates of 1.1% and 1.4%.

The weighted average grant date fair value of restricted stock units granted during the nine months ended September 30, 2016and 2015 was $87.45 and$82.78, respectively. The Company calculated the fair value of each restricted stock unit grant using the market value on the date of grant.

At September 30, 2016, there was a combined total of 1.2million options and restricted stock units authorized to be granted.

Information with respect to outstanding options and nonvested restricted stock units granted under the 2003 Plan and 2012 Plan is as follows:

				Weighted		Aggregate
		Weighted		Average		Intrinsic
	Number of	Average		Remaining		Value
Options:	Options	Exercise Price		Contract Life		(in thousands)
Outstanding at December 31, 2015	258,674	$	60.76
Granted	39,000	$	102.58
Exercised	(49,882)	$	59.26
Forfeited	—	$	—
Outstanding at September 30, 2016	247,792	$	67.64	5.41 Years	$	11,380
Exercisable at September 30, 2016	169,498	$	57.69	4.00 Years	$	9,472

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2015	78,652	$	78.44
Granted	119,950	$	87.45
Vested	(47,779)	$	80.45
Forfeited	(5,430)	$	74.79
Nonvested at September 30, 2016	145,393	$	58.71

Effective March, 2014, the Company entered into a performance-based restricted stock unit program, the Senior Management Long-Term Equity Incentive Program for 2014-2017 (“LTEIP”), with certain employees of the Company. Under the LTEIP, the Company established three levels of targeted restricted stock unit awards for certain employees, which would be earned only if the Company achieved one of three defined targets during 2014 to 2017. Under the LTEIP there is an annual award following the end of each of the four years in the program, with the award subject to and based on the achievement of total returntargets during the previous year, as well as an award based on achieving total return targets during the cumulative four-year period 2014-2017. In the event the minimum defined target is not achieved for an annual award, the restricted stock units allocated to be awarded for such year are added to the restricted stock units that may be received if the four-year target is achieved. All restricted stock unit awards under the LTEIP vest in four equal annual installments beginning from the date of award. Up to 99,150 restricted stock units would be awarded for each of the four years assuming achievement was met and up to 92,900 restricted stock units would be awarded for the cumulative four-year period assuming achievement was met. Compensation expense is recognized based on the restricted stock units expected to be awarded based on the target level that is expected to be achieved. Net compensation expense of $1.6 million and $1.7 million related to the LTEIP was recognized during the three months ended September 30, 2016 and 2015, respectively, and $8.1 million and $6.2 million for the nine months ended September 30, 2016 and 2015, respectively.  Included in the 2016 year to date amount, the Company recorded a net non-cash stock compensation charge of $2.0 million during the second quarter of 2016 related to a change in senior management and the future issuance of restricted stock units our former Chief Executive Officer will receive under the Company’s LTEIP.

In connection with theLTEIP, targets for 2015 were achieved at the highest threshold total return level. As such, 99,150 restricted stock units were granted during the nine months ended September 30, 2016 at a weighted average grant date fair value of $83.59.

Included in the Company’s consolidated statements of income for the three months ended September 30, 2016 and 2015, was $51,000 and $42,000, respectively, in net compensation expense related to stock options. Net compensation expense of $229,000 and $218,000 related to stock options was recognized during the nine months ended September 30, 2016 and 2015, respectively.  Net compensation expense of $1.7 million and $1.8 million related to restricted stock units was recognized during the three months ended September 30, 2016 and 2015, respectively. Net compensation expense of $8.5 million and $8.7 million related to restricted stock units was recognized during the nine months ended September 30, 2016 and 2015, respectively.

As of September 30, 2016, there was $588,000 of unamortized compensation expense related to stock options expected to be recognized over a weighted average period of 3.7 years. As of September 30, 2016, there was $15.3 million of unamortized compensation expense related to restricted stock units expected to be recognized over a weighted average period of 3.9 years.

Cash received from 49,882 stock options exercised during the nine months ended September 30, 2016 was $3.0 million. Cash received from 78,790 stock options exercised during the nine months ended September 30, 2015 was $4.0 million. The aggregate intrinsic value of the stock options exercised was $2.4 million and $2.0 million during the nine months ended September 30, 2016 and 2015, respectively.

During the nine months ended September 30, 2016,  47,779 restricted stock units vested; in settlement of these units,  28,046 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the nine months ended September 30, 2016 was $4.7 million.During the nine months ended September 30, 2015, 25,384 restricted stock units vested; in settlement of these units, 15,734 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the nine months ended September 30, 2015 was $2.0 million.

In April, 2015, the shareholders of the Company approved the issuance of up to 130,000 shares of common stock under the Retirement Plan for Non-Employee Directors (the “Director Plan”). Under the Director Plan, the Company grants 1,000 shares of common stock for each year served as a director up to a maximum of 8,000 shares issued upon retirement. The Company recognizes compensation expense over the requisite service period. As a result, included in the Company’s consolidated statements of income was $85,000and $79,000 in compensation expense for the three months ended September 30, 2016 and 2015, respectively, and $254,000 and $237,000 for the nine months ended September 30, 2016 and 2015, respectively. As of September 30, 2016 and 2015, there was $972,000 and $1.3 million, respectively, of unamortized compensation expense related to these shares. In April, 2016, the Company issued 8,000 shares to a director upon retirement with an aggregate fair value of $775,000.  No shares were issued during the nine months ended September 30, 2015.

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Summary Of Significant Accounting Policies (Policy)

9 Months Ended

Sep. 30, 2016

Summary Of Significant Accounting Policies [Abstract]

Basis Of Presentation

Basis of presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2016 are not necessarily indicative of the results that may be expected for the year ended December 31, 2016. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.  

Consolidation And Equity Method Of Accounting

Consolidation and Equity Method of Accounting

The Company accounts for its investment in a joint venture that it has significant influence over, but does not control, using the equity method of accounting eliminating intra-entity profits and losses as if the joint venture were a consolidated subsidiary.

The accompanying consolidated financial statements include the accounts of PSB and the Operating Partnership. All significant inter-company balances and transactions have been eliminated in the consolidated financial statements.

The Company consolidates all variable interest entities (each a “VIE”) for which it is the primary beneficiary. Generally, a VIE is a legal entity in which the equity investors do not have the characteristics of a controlling financial interest or the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. A limited partnership may be considered a VIE if the limited partners do not participate in operating decisions. Under this criteria, the Operating Partnership is considered a VIE. The Company’s significant asset is its investment in the Operating Partnership, and consequently, substantially all of the Company’s assets and liabilities represent those assets and liabilities of the Operating Partnership. All of the Company’s debt is an obligation of the Operating Partnership.

Noncontrolling Interests

Noncontrolling interests

The Company’s noncontrolling interests are reported as a component of equity separate from the parent’s equity. Purchases or sales of equity interests that do not result in a change in control are accounted for as equity transactions. In addition, net income attributable to the noncontrolling interests is included in consolidated net income on the face of the income statement and, upon a gain or loss of control, the interests purchased or sold, as well as any interests retained, are recorded at fair value with any gain or loss recognized in earnings. At the end of each reporting period, the Company determines the amount of equity (book value of net assets) which is allocable to the noncontrolling interests based upon the ownership interest, and an adjustment is made to the noncontrolling interests, with a corresponding adjustment to paid-in capital, to reflect the noncontrolling interests’ equity interest in the Company.

Use Of Estimates

Use of estimates

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates.

Allowance For Doubtful Accounts

Allowance for doubtful accounts

The Company monitors the collectability of its receivable balances including the deferred rent receivable on an ongoing basis. Based on these reviews, the Company maintains an allowance for doubtful accounts for estimated losses resulting from the possible inability of tenants to make contractual rent payments to the Company. A provision for doubtful accounts is recorded during each period. The allowance for doubtful accounts is netted against tenant and other receivables on the consolidated balance sheets. Tenant receivables are net of an allowance for uncollectible accounts totaling $400,000 at September 30, 2016 and December 31, 2015. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $919,000 and $909,000 at September 30, 2016 and December 31, 2015, respectively.

Financial Instruments

Financial instruments

The methods and assumptions used to estimate the fair value of financial instruments are described below. The Company has estimated the fair value of financial instruments using available market information and appropriate valuation methodologies. Considerable judgment is required in interpreting market data to develop estimates of market value. Accordingly, estimated fair values are not necessarily indicative of the amounts that could be realized in current market exchanges. The Company determines the estimated fair value of financial assets and liabilities utilizing a hierarchy of valuation techniques based on whether the inputs to a fair value measurement are considered to be observable or unobservable in a marketplace. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. This hierarchy requires the use of observable market data when available. The following is the fair value hierarchy:

* Level 1—quoted prices for identical instruments in active markets;

* Level 2—quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and

* Level 3—fair value measurements derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

Financial assets that are exposed to credit risk consist primarily of cash and cash equivalents and receivables. The Company considers all highly liquid investments with a remaining maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents, which consist primarily of money market investments, are only invested in entities with an investment grade rating. Receivables are comprised of balances due from a large number of customers. Balances that the Company expects to become uncollectible are reserved for or written off. Due to the short period to maturity of the Company’s cash and cash equivalents, accounts receivable, other assets and accrued and other liabilities, the carrying values as presented on the consolidated balance sheets are reasonable estimates of fair value.

Carrying values of the Company’s mortgage note payable and unsecured credit facility approximate fair value. The characteristics of these financial instruments, market data and other comparative metrics utilized in determining these fair values are “Level 2” inputs.

Real Estate Facilities

Real estate facilities

Real estate facilities are recorded at cost. Costs related to the renovation or improvement of the properties are capitalized. Expenditures for repairs and maintenance are expensed as incurred. Expenditures that are expected to benefit a period greater than two years and exceed $2,000 are capitalized and depreciated over their estimated useful life. Buildings and improvements are depreciated using the straight-line method over their estimated useful lives, which generally range from five to 30 years. Transaction costs, which include tenant improvements and lease commissions, of $1,000 or more for leases with terms greater than one year are capitalized and depreciated over their estimated useful lives. Transaction costs less than $1,000 or for leases of one year or less are expensed as incurred.

Land Held For Future Development

Land held for future development

Property taxes, insurance, interest and costs essential to the development of property for its intended use are capitalized during the period of development. Upon classification of an asset as held for development, depreciation of the asset is ceased.

Properties Held For Disposition

Properties held for disposition

An asset is classified as an asset held for disposition when it meets certain requirements, which include, among other criteria, the approval of the sale of the asset, the marketing of the asset for sale and the expectation by the Company that the sale will likely occur within the next 12 months. Upon classification of an asset as held for disposition, depreciation of the asset is ceased, and the net book value of the asset is included on the balance sheet as properties held for disposition.

Intangible Assets/Liabilities

Intangible assets/liabilities

Intangible assets and liabilities include above-market and below-market in-place lease values of acquired properties based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. The capitalized above-market and below-market lease values (included in other assets and accrued liabilities in the accompanying consolidated balance sheets) are amortized to rental income over the remaining non-cancelable terms of the respective leases.

As of September 30, 2016, the value of in-place leases resulted in net intangible assets of $1.2 million, net of $9.0 million of accumulated amortization with a weighted average amortization period of 9.2 years, and net intangible liabilities of $990,000, net of $9.8 million of accumulated amortization with a weighted average amortization period of 6.3 years. As of December 31, 2015, the value of in-place leases resulted in net intangible assets of $1.7 million, net of $8.6 million of accumulated amortization and net intangible liabilities of $1.8 million, net of $9.0 million of accumulated amortization.

The Company recorded net increases in rental income of $106,000 and $341,000 for the three months ended September 30, 2016 and 2015, respectively, and $437,000 and $1.0million for the nine months ended September 30, 2016 and 2015, respectively, due to the amortization of net intangible liabilities resulting from the above-market and below-market lease values.

Evaluation Of Asset Impairment

Evaluation of asset impairment

The Company evaluates its assets used in operations for impairment by identifying indicators of impairment and by comparing the sum of the estimated undiscounted future cash flows for each asset to the asset’s carrying value. When indicators of impairment are present and the sum of the estimated undiscounted future cash flows is less than the carrying value of such asset, an impairment loss is recorded equal to the difference between the asset’s current carrying value and its value based on discounting its estimated future cash flows. In addition, the Company evaluates its assets held for disposition for impairment. Assets held for disposition are reported at the lower of their carrying value or fair value, less cost of disposition. At September 30, 2016, the Company did not consider any assets to be impaired.

Stock Compensation

Stock compensation

All share-based payments to employees, including grants of employee stock options, are recognized as stock compensation in the Company’s income statement based on their grant date fair values. See Note 12.

Revenue And Expense Recognition

Revenue and expense recognition

The Company must meet four basic criteria before revenue can be recognized: persuasive evidence of an arrangement exists; the delivery has occurred or services have been rendered; the fee is fixed or determinable; and collectability is reasonably assured. All leases are classified as operating leases. Rental income is recognized on a straight-line basis over the terms of the leases. Straight-line rent is recognized for all tenants with contractual fixed increases in rent that are not included on the Company’s credit watch list. Deferred rent receivable represents rental revenue recognized on a straight-line basis in excess of billed rents. Reimbursements from tenants for real estate taxes and other recoverable operating expenses are recognized as rental income in the period the applicable costs are incurred. Property management fees are recognized in the period earned.

Costs incurred in connection with leasing (primarily tenant improvements and lease commissions) are capitalized and amortized over the lease period.

Gains From Sales Of Real Estate Facilities

Gains from sales of real estate facilities

The Company recognizes gains from sales of real estate facilities at the time of sale using the full accrual method, provided that various criteria related to the terms of the transactions and any subsequent involvement by the Company with the properties sold are met. If the criteria are not met, the Company defers the gains and recognizes them when the criteria are met or uses the installment or cost recovery methods as appropriate under the circumstances.

General And Administrative Expenses

General and administrative expenses

General and administrative expenses include executive and other compensation, office expenses, professional fees, acquisition transaction costs, state income taxes and other such administrative items.

Income Taxes

Income taxes

The Company has qualified and intends to continue to qualify as a REIT, as defined in Section 856 of the Internal Revenue Code of 1986, as amended. As a REIT, the Company is not subject to federal income tax to the extent that it distributes its REIT taxable income to its shareholders. A REIT must distribute at least 90% of its taxable income each year. In addition, REITs are subject to a number of organizational and operating requirements. The Company may be subject to certain state and local taxes on its income and property and to federal income and excise taxes on its undistributed taxable income. The Company believes it met all organization and operating requirements to maintain its REIT status during 2015 and intends to continue to meet such requirements for 2016. Accordingly, no provision for income taxes has been made in the accompanying consolidated financial statements.

The Company can recognize a tax benefit only if it is “more likely than not” that a particular tax position will be sustained upon examination or audit. To the extent that the “more likely than not” standard has been satisfied, the benefit associated with a position is measured as the largest amount that is greater than 50% likely of being recognized upon settlement. As of September 30, 2016, the Company did not recognize any tax benefit for uncertain tax positions.

Accounting For Preferred Equity Issuance Costs

Accounting for preferred equity issuance costs

The Company records issuance costs as a reduction to paid-in capital on its balance sheet at the time the preferred securities are issued and reflects the carrying value of the preferred equity at the stated value. Such issuance costs are recorded as non-cash preferred equity distributions at the time the Company notifies the holders of preferred stock of its intent to redeem such shares.

Net Income Allocation

Net income allocation

Net income was allocated as follows (in thousands):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to noncontrolling interests:
Noncontrolling interests—common units	$	5,315	$	6,087	$	13,495	$	14,467
Total net income allocable to noncontrolling interests		5,315		6,087		13,495		14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders
Distributions to preferred shareholders		13,833		15,122		41,498		45,366
Non-cash distributions related to the redemption of
preferred stock		—		2,487		—		2,487
Total net income allocable to preferred shareholders		13,833		17,609		41,498		47,853
Restricted stock unit holders		128		97		387		237
Common shareholders		19,718		22,484		50,017		53,384
Total net income allocable to PS Business Parks, Inc.		33,679		40,190		91,902		101,474
Net income	$	38,994	$	46,277	$	105,397	$	115,941

Net Income Per Common Share

Net income per common share

Per share amounts are computed using the number of weighted average common shares outstanding. “Diluted” weighted average common shares outstanding includes the dilutive effect of stock options and restricted stock units under the treasury stock method. “Basic” weighted average common shares outstanding excludes such effect. The Company's restricted stock units are participating securities and are included in the computation of basic and diluted weighted average common shares outstanding. The Company’s restricted stock unit holders are paid non-forfeitable dividends in excess of the expenserecorded which results in a reduction in net income allocable to common shareholders and unit holders.

Earnings per share has been calculated as follows (in thousands, except per share amounts):

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to common shareholders	$	19,718	$	22,484	$	50,017	$	53,384
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		27,103		26,985		27,076		26,956
Net effect of dilutive stock compensation—based on
treasury stock method using average market price		98		64		90		78
Diluted weighted average common shares outstanding		27,201		27,049		27,166		27,034
Net income per common share—Basic	$	0.73	$	0.83	$	1.85	$	1.98
Net income per common share—Diluted	$	0.72	$	0.83	$	1.84	$	1.97

No options were excluded from the computation of diluted net income per share for the three months ended September 30, 2016as no options were considered anti-dilutive. Options to purchase 25,000 shares were excluded from the computation of diluted net income per share for the nine months ended September 30, 2016as such options were considered anti-dilutive.Options to purchase 46,000 shares were excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2015as such options were considered anti-dilutive.

Segment Reporting

Segment reporting

The Company views its operations as one segment.

Reclassifications

Reclassifications

Certain reclassifications have been made to the consolidated financial statements for 2015 in order to conform to the 2016 presentation.

Recently Issued Accounting Standards

Recently issued accounting standards

In May, 2014, the Financial Accounting Standards Board(“FASB”) issued Accounting Standard Update (“ASU”) 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. The new accounting guidance establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. This guidance is currently effective for the Company’s fiscal year beginning January 1, 2018. Early adoption is permitted for the Company’s fiscal year beginning January 1, 2017. The amendment allows for full retrospective adoption applied to all periods presented or modified retrospective adoption with the cumulative effect of initially applying the standard recognized at the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In August, 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern for a period of one year after the date that the financial statements are issued. This guidance is effective for annual periods ending after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Company anticipates no impact upon adoption of the new accounting guidance on its consolidated financial statements.

In February, 2015, the FASB issued ASU 2015-02, Consolidation – Amendments to the Consolidation Analysis, which amended the existing accounting standards for consolidation under both the variable interest model and the voting model. On January 1, 2016, the Company adopted this guidance and as the Operating Partnership is already consolidated in the balance sheets of the Company, the identification of this entity as a VIE has no impact on the consolidated financial statements of the Company. Additionally, the Company’s accounting for its investment in its joint venture was not impacted by the adoption of this guidance.

In February, 2016, the FASB issued ASU 2016-02, Leases, which amends the existing accounting standards for lease accounting. The accounting applied by a lessor is largely unchanged under this guidance. However, the guidance requires lessees to recognize assets and liabilities for most leases on the balance sheet. This guidance is effective for annual periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted. The guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is currently in the process of evaluating the impact of adoption of the new accounting guidance on its consolidated financial statements.

In March, 2016, the FASB issued ASU 2016-09,  Improvements to Employee Share-Based Payment Accounting, to amend the accounting guidance for share-based payment accounting. The guidance is intended to simplify the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This guidance is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods and early adoption is permitted. The Company is currently assessing the impact of the guidance on its consolidated financial statements.

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Summary Of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2016

Summary Of Significant Accounting Policies [Abstract]

Net Income Allocation

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to noncontrolling interests:
Noncontrolling interests—common units	$	5,315	$	6,087	$	13,495	$	14,467
Total net income allocable to noncontrolling interests		5,315		6,087		13,495		14,467
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders
Distributions to preferred shareholders		13,833		15,122		41,498		45,366
Non-cash distributions related to the redemption of
preferred stock		—		2,487		—		2,487
Total net income allocable to preferred shareholders		13,833		17,609		41,498		47,853
Restricted stock unit holders		128		97		387		237
Common shareholders		19,718		22,484		50,017		53,384
Total net income allocable to PS Business Parks, Inc.		33,679		40,190		91,902		101,474
Net income	$	38,994	$	46,277	$	105,397	$	115,941

Calculation Of Earnings Per Share

	For The Three Months				For The Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Net income allocable to common shareholders	$	19,718	$	22,484	$	50,017	$	53,384
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		27,103		26,985		27,076		26,956
Net effect of dilutive stock compensation—based on
treasury stock method using average market price		98		64		90		78
Diluted weighted average common shares outstanding		27,201		27,049		27,166		27,034
Net income per common share—Basic	$	0.73	$	0.83	$	1.85	$	1.98
Net income per common share—Diluted	$	0.72	$	0.83	$	1.84	$	1.97

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Real Estate Facilities (Tables)

9 Months Ended

Sep. 30, 2016

Real Estate Facilities [Abstract]

Activity In Real Estate Facilities

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2015	$	793,569	$	2,215,515	$	(1,082,603)	$	1,926,481
Acquisition of real estate facilities		5,638		7,637		—		13,275
Capital expenditures, net		—		25,954		—		25,954
Disposals		—		(10,302)		10,302		—
Depreciation and amortization		—		—		(74,886)		(74,886)
Balances at September 30, 2016	$	799,207	$	2,238,804	$	(1,147,187)	$	1,890,824

Summary Of Real Estate Assets Acquired And Liabilities Assumed

	2016
Land	$	5,638
Buildings and improvements		7,637
Below-market in-place lease value		(25)
Total purchase price		13,250
Net operating assets acquired and liabilities assumed		(622)
Total cash paid	$	12,628

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Leasing Activity (Tables)

9 Months Ended

Sep. 30, 2016

Leasing Activity [Abstract]

Summary Of Future Minimum Rental Revenues Excluding Recovery Of Operating Expenses

2016	$	73,197
2017		257,375
2018		193,217
2019		130,527
2020		84,301
Thereafter		157,499
Total	$	896,116

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Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2016

Shareholders' Equity [Abstract]

Schedule Of Preferred Stock Outstanding

		Earliest Potential	Dividend	Shares	Amount
Series	Issuance Date	Redemption Date	Rate	Outstanding	(in thousands)
Series S	January, 2012	January, 2017	6.450%	9,200	$	230,000
Series T	May, 2012	May, 2017	6.000%	14,000		350,000
Series U	September, 2012	September, 2017	5.750%	9,200		230,000
Series V	March, 2013	March, 2018	5.700%	4,400		110,000
Total				36,800	$	920,000

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Stock Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Stock Compensation [Abstract]

Summary Of Stock Options Activity

				Weighted		Aggregate
		Weighted		Average		Intrinsic
	Number of	Average		Remaining		Value
Options:	Options	Exercise Price		Contract Life		(in thousands)
Outstanding at December 31, 2015	258,674	$	60.76
Granted	39,000	$	102.58
Exercised	(49,882)	$	59.26
Forfeited	—	$	—
Outstanding at September 30, 2016	247,792	$	67.64	5.41 Years	$	11,380
Exercisable at September 30, 2016	169,498	$	57.69	4.00 Years	$	9,472

Nonvested Restricted Stock Units

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2015	78,652	$	78.44
Granted	119,950	$	87.45
Vested	(47,779)	$	80.45
Forfeited	(5,430)	$	74.79
Nonvested at September 30, 2016	145,393	$	58.71

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Organization And Description Of Business (Narrative) (Details) shares in Millions	Sep. 30, 2016 ft² state shares
Organization And Description Of Business [Line Items]
The Company's ownership percentage of the limited partnership	77.90%
Owned and operated properties (in rentable square feet)	28,200,000
Number of states with rentable commercial space | state	6
Managed properties (in rentable square feet)	737,000
PS [Member]
Organization And Description Of Business [Line Items]
Affiliate's percent ownership of the Company's common equity	42.00%
Shares owned by Public Storage | shares	14.5

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Summary Of Significant Accounting Policies (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($) shares	Sep. 30, 2016 USD ($) segment shares	Sep. 30, 2015 USD ($) shares	Dec. 31, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Allowance for uncollectible accounts	$ 400,000		$ 400,000		$ 400,000
Allowance for uncollectable deferred rent receivables	919,000		$ 919,000		909,000
Cash and cash equivalents maximum benchmark (in months)			3 months
Minimum expenditure costs subject to capitalization and depreciation			$ 2,000
Minimum expected future benefit period on expenditures cost to be capitalized and depreciated (in years)			2 years
Minimum transaction cost subject to capitalization and depreciation			$ 1,000
Minimum expected future benefit period on transaction cost to be capitalized and depreciated (in years)			1 year
Maximum transaction costs subject to being expensed as incurred			$ 1,000
Maximum length of lease period for transaction costs to be expensed as incurred			1 year
Length of time criteria for expected sale of assets to be classified as properties held for disposition			12 months
Increase (decrease) in rental income due to amortization of net intangible assets or liabilities	106,000	$ 341,000	$ 437,000	$ 1,004,000
Value of in-place leases resulting in a net intangible asset	1,200,000		1,200,000		1,700,000
Accumulated amortization - intangible assets	9,000,000		$ 9,000,000		8,600,000
Intangible assets, weighted average amortization period (in years)			9 years 2 months 12 days
Value of in-place leases resulting in a net intangible liability	990,000		$ 990,000		1,800,000
Accumulated amortization - intangible liabilities	$ 9,800,000		$ 9,800,000		$ 9,000,000
Intangible liability, weighted average amortization period (in years)			6 years 3 months 18 days
Distribution of taxable income requirement			90.00%
Income tax provision			$ 0
Odds of a particular tax position will be sustained upon examination or audit			50.00%
Anti-dilutive share options to purchase | shares	0	46,000	25,000	46,000
Number of operating segments | segment			1
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)			30 years
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)			5 years

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Summary Of Significant Accounting Policies (Net Income Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Summary Of Significant Accounting Policies [Abstract]
Noncontrolling interests - common units	$ 5,315	$ 6,087	$ 13,495	$ 14,467
Total net income allocable to noncontrolling interests	5,315	6,087	13,495	14,467
Distributions to preferred shareholders	13,833	15,122	41,498	45,366
Non-cash distributions related to the redemption of preferred stock		2,487		2,487
Total net income allocable to preferred shareholders	13,833	17,609	41,498	47,853
Restricted stock unit holders	128	97	387	237
Common shareholders	19,718	22,484	50,017	53,384
Total net income allocable to PS Business Parks, Inc.	33,679	40,190	91,902	101,474
Net income	$ 38,994	$ 46,277	$ 105,397	$ 115,941

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Summary Of Significant Accounting Policies (Calculation Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Summary Of Significant Accounting Policies [Abstract]
Net income allocable to common shareholders	$ 19,718	$ 22,484	$ 50,017	$ 53,384
Basic weighted average common shares outstanding	27,103	26,985	27,076	26,956
Net effect of dilutive stock compensation - based on treasury stock method using average market price	98	64	90	78
Diluted weighted average common shares outstanding	27,201	27,049	27,166	27,034
Net income per common share - Basic	$ 0.73	$ 0.83	$ 1.85	$ 1.98
Net income per common share - Diluted	$ 0.72	$ 0.83	$ 1.84	$ 1.97

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Real Estate Facilities (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) ft²	Sep. 30, 2016 USD ($) ft² property	Sep. 30, 2015 USD ($) ft²
Real Estate Facilities [Line Items]
Square Footage of Real Estate Property | ft²	574,000		574,000
Proceeds from sale of real estate facilities | $			$ 55,160
Gain on sale of real estate facilities | $	$ 15,748		$ 28,235
Shady Grove [Member]
Real Estate Facilities [Line Items]
Number of buildings acquired | property		2
Purchase price | $		$ 13,250
Number of square foot acquired | ft²		226,000
Shady Grove Executive Park [Member]
Real Estate Facilities [Line Items]
Number of buildings owned | property		3
Square Footage of Real Estate Property | ft²		352,000

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Real Estate Facilities (Activity In Real Estate Facilities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Line Items]
Balances			$ 1,926,481
Accumulated Depreciation, Balances			(1,082,603)
Acquisition of real estate facilities			13,275
Capital expenditures, net			25,954
Disposals
Accumulated Depreciation, Disposals			10,302
Depreciation and amortization	$ (24,631)	$ (25,985)	(74,886)	$ (79,243)
Accumulated Depreciation, Balances	(1,147,187)		(1,147,187)
Balances	1,890,824		1,890,824
Land [Member]
Property, Plant and Equipment [Line Items]
Balances			793,569
Acquisition of real estate facilities			5,638
Capital expenditures, net
Disposals
Depreciation and amortization
Balances	799,207		799,207
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Balances			2,215,515
Acquisition of real estate facilities			7,637
Capital expenditures, net			25,954
Disposals			(10,302)
Depreciation and amortization
Balances	$ 2,238,804		$ 2,238,804

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Real Estate Facilities (Summary Of Real Estate Assets Acquired And Liabilities Assumed) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Business Acquisition [Line Items]
Total cash paid	$ 12,628
Shady Grove [Member]
Business Acquisition [Line Items]
Land	5,638
Buildings and improvements	7,637
Below-market in-place lease value	(25)
Total purchase price	13,250
Net operating assets acquired and liabilities assumed	(622)
Total cash paid	$ 12,628

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Investment In And Advances To Unconsolidated Joint Venture (Narrative) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) a property	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment in and advances to unconsolidated joint venture	$ 55,536		$ 26,736
Land	$ 799,207		793,569
Investment in Unconsolidated Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Economic interest in joint venture, percentage	95.00%
Number of units to be developed | property	395
Area of land | a	5
Contribution date	Oct. 05, 2015
Construction Loan Capacity	$ 75,000
Construction loan maturity date	Apr. 05, 2019
Equity and capital contributions	$ 5,700
Cumulative equity and capital contributions	28,500
Loan advances	22,300		$ 0
Capitalized interest	854
Estimated total development costs	105,600
Land	$ 15,300
Investment in Unconsolidated Joint Venture [Member] | London Interbank Offered Rate (LIBOR) [Member]
Schedule of Equity Method Investments [Line Items]
Spread over LIBOR	2.25%
Northern Virginia Redeveloped Land [Member]
Schedule of Equity Method Investments [Line Items]
Capitalized cost		$ 2,800
Capitalized interest		$ 813

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Leasing Activity (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Operating Leased Assets [Line Items]
Tenant reimbursements	$ 20.3	$ 19.5	$ 61.6	$ 59.5
Percentage of leased asset subjected to termination options	3.30%		3.30%
Percentage of leased asset exercisable in period	1.50%		1.50%
Maximum [Member]
Operating Leased Assets [Line Items]
Non-cancelable leases term (in years)			10 years
Minimum [Member]
Operating Leased Assets [Line Items]
Non-cancelable leases term (in years)			1 year

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Leasing Activity (Summary Of Future Minimum Rental Revenues Excluding Recovery Of Operating Expenses) (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Leasing Activity [Abstract]
2016	$ 73,197
2017	257,375
2018	193,217
2019	130,527
2020	84,301
Thereafter	157,499
Total	$ 896,116

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Bank Loans (Details) - USD ($)	1 Months Ended	9 Months Ended
	Oct. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Credit Facility - repaid amount		$ 56,000,000
Credit Facility, amount outstanding		$ 60,000,000
Wells Fargo Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit, expiration date		May 01, 2019
Credit Facility, borrowing limit		$ 250,000,000
Credit Facility, frequency of interest payment		monthly
Spread over LIBOR		0.875%
Credit Facility, percentage of commitment fees		0.125%
Credit Facility, amount outstanding		$ 60,000,000	$ 0
Credit Facility, interest rate		1.36%
Unamortized commitment fees		$ 596,000	$ 769,000
Wells Fargo Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Credit Facility - repaid amount	$ 60,000,000
Maximum [Member] | Wells Fargo Credit Facility [Member]
Line of Credit Facility [Line Items]
Spread over LIBOR		1.70%
Credit Facility, percentage of commitment fees		0.30%
Minimum [Member] | Wells Fargo Credit Facility [Member]
Line of Credit Facility [Line Items]
Spread over LIBOR		0.875%
Credit Facility, percentage of commitment fees		0.125%

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Mortgage Note Payable (Narrative) (Details) - USD ($) $ in Thousands		9 Months Ended
	Jun. 01, 2016	Sep. 30, 2016
Debt Instrument [Line Items]
Mortgage note repayment amount		$ 250,000
5.45% Mortgage Note [Member]
Debt Instrument [Line Items]
Interest rate	5.45%
Repayment date	Jun. 01, 2016
Mortgage note repayment amount	$ 250,000

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Noncontrolling Interests (Narrative) (Details)	9 Months Ended
	Sep. 30, 2016 shares
Noncontrolling Interests [Line Items]
Number of years from date of admission as a limited partner for redemption of partnership interest	1 year
Number of common stock per unit of limited partnership interest redeemed	1
PS [Member]
Noncontrolling Interests [Line Items]
Common units owned by affiliate	7,305,355
Affiliate's percent ownership of the Company's common equity	42.00%
Shares owned by Public Storage	14,500,000

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Related Party Transactions (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Related Party Transactions [Abstract]
Royalty-free license agreement written notice of termination period minimum (in months)			6 months
Property management contract term (in years)			7 years
Extended property management contract period (in years)			1 year
Management fee revenues	$ 130,000	$ 130,000	$ 389,000	$ 410,000
Number of assets owned that are maintained by Public Storage | item	2		2
Property management contract written notice of termination period minimum (in days)			60 days
Management fee expenses	$ 22,000	21,000	$ 64,000	59,000
Administrative services costs	123,000	$ 117,000	370,000	$ 352,000
Due to related parties	$ 131,000		$ 131,000
Due from related parties					$ 57,000

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Shareholders' Equity (Narrative) (Details)		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 20, 2016 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) item $ / shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Class of Stock [Line Items]
Shares issued value		$ 920,000,000		$ 920,000,000		$ 920,000,000
Non-cash distributions related to the redemption of preferred stock			$ 2,487,000		$ 2,487,000
Distributions Recorded To Preferred Shareholders		$ 13,800,000	$ 17,600,000	$ 41,500,000	$ 47,900,000
Number of quarterly dividends in arrearage before preferred shareholders can elect additional board members | item				6
Number of additional board members the preferred shareholders can elect in the case of an excess arrearage of quarterly dividends | item				2
Dividends in arrears				$ 0
Redeemable preferred stock, redemption price per share | $ / shares		$ 25.00		$ 25.00
Preferred stock, aggregate deferred issuance costs outstanding				$ 29,300,000		$ 29,300,000
Series R [Member]
Class of Stock [Line Items]
Cumulative preferred stock, dividend rate			6.875%
Redemption of preferred stock			$ 75,000,000
Series W [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Shares issued value	$ 189,800,000
Number of stock issued in sale | shares	7,590,000
Portion of share of cummulative preferred shares	0.10%
Preferred stock, issuance price per share | $ / shares	$ 25.00
Cumulative preferred stock, dividend rate	5.20%
Non-callable period for Preferred Units	5 years

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Shareholders' Equity (Common And Equity Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Shareholders' Equity [Abstract]
Aggregate number of common stock repurchased in the period			0	0
Distributions paid to common shareholders	$ 20,300	$ 16,200	$ 60,932	$ 43,156
Dividends declared per common share	$ 0.75	$ 0.60	$ 2.25	$ 1.60
Equity stock, shares authorized	100,000,000		100,000,000

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Shareholders' Equity (Schedule Of Preferred Stock Outstanding) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Shares Outstanding	36,800	36,800
Amount	$ 920,000	$ 920,000
Series S [Member]
Class of Stock [Line Items]
Issuance Date	Jan. 01, 2012	Jan. 01, 2012
Earliest Potential Redemption Date	Jan. 01, 2017	Jan. 01, 2017
Dividend Rate	6.45%	6.45%
Shares Outstanding	9,200	9,200
Amount	$ 230,000	$ 230,000
Series T [Member]
Class of Stock [Line Items]
Issuance Date	May 01, 2012	May 01, 2012
Earliest Potential Redemption Date	May 01, 2017	May 01, 2017
Dividend Rate	6.00%	6.00%
Shares Outstanding	14,000	14,000
Amount	$ 350,000	$ 350,000
Series U [Member]
Class of Stock [Line Items]
Issuance Date	Sep. 01, 2012	Sep. 01, 2012
Earliest Potential Redemption Date	Sep. 01, 2017	Sep. 01, 2017
Dividend Rate	5.75%	5.75%
Shares Outstanding	9,200	9,200
Amount	$ 230,000	$ 230,000
Series V [Member]
Class of Stock [Line Items]
Issuance Date	Mar. 01, 2013	Mar. 01, 2013
Earliest Potential Redemption Date	Mar. 01, 2018	Mar. 01, 2018
Dividend Rate	5.70%	5.70%
Shares Outstanding	4,400	4,400
Amount	$ 110,000	$ 110,000

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Stock Compensation (Narrative) (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2016 USD ($) shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) item $ / shares shares	Sep. 30, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of options granted | $ / shares				$ 9.05	$ 8.49
Dividend yield				2.90%	2.50%
Expected volatility				15.50%	16.10%
Expected life (in years)				5 years	5 years
Risk-free interest rate				1.10%	1.40%
Options and restricted stock units authorized to grant		1,200,000		1,200,000
Proceeds from the exercise of stock options | $				$ 2,956,000	$ 3,987,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options expense | $		$ 51,000	$ 42,000	229,000	$ 218,000
Unamortized compensation expense | $		588,000		$ 588,000
Weighted average recognized period of unamortized compensation expenses (in years)				3 years 8 months 12 days
Exercise of stock options, shares				49,882	78,790
Aggregate intrinsic value of the stock options exercised | $				$ 2,400,000	$ 2,000,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted				119,950
Weighted average grant date fair value of stock granted | $ / shares				$ 87.45	$ 82.78
Restricted stock units expense | $		1,700,000	1,800,000	$ 8,500,000	$ 8,700,000
Unamortized compensation expense | $		$ 15,300,000		$ 15,300,000
Weighted average recognized period of unamortized compensation expenses (in years)				3 years 10 months 24 days
Number of units vested				47,779	25,384
Number of units issued				28,046	15,734
Aggregate fair value of the shares vested | $				$ 4,700,000	$ 2,000,000
2003 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares covered under Stock Option and Incentive Plan		1,500,000		1,500,000
2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares covered under Stock Option and Incentive Plan		1,000,000		1,000,000
2014 Performance-Based Restricted Stock Unit Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted				99,150
Weighted average grant date fair value of stock granted | $ / shares				$ 83.59
Number of defined targets to achieve for restricted stock unit awards, maximum | item				3
Number of defined targets to achieve for restricted stock unit awards, minimum | item				1
Length of Restricted Stock Unit program (in years)				4 years
Number of annual vesting installments | item				4
Approximate number of restricted stock units granted per year, maximum				99,150
Maximum shares for cumulative four-year period				92,900
Compensation expense | $		$ 1,600,000	1,700,000	$ 8,100,000	6,200,000
2014 Performance-Based Restricted Stock Unit Program [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $				2,000,000
Retirement Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $		85,000	79,000	254,000	237,000
Unamortized compensation expense | $		$ 972,000	$ 1,300,000	$ 972,000	$ 1,300,000
Number of units issued	8,000				0
Shares approved for issuance				130,000
Number of shares granted for each year served				1,000
Maximum number of shares issued upon retirement				8,000
Aggregate fair value of shares issued | $	$ 775,000

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Stock Compensation (Summary Of Stock Options Activity) (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding at December 31, 2015	258,674
Number of Options, Granted	39,000
Number of Options, Exercised	(49,882)	(78,790)
Number of Options, Forfeited
Number of Options, Outstanding at September 30, 2016	247,792
Number of Options, Exercisable at September 30, 2016	169,498
Weighted Average Exercise Price, Outstanding at December 31, 2015	$ 60.76
Weighted Average Exercise Price, Granted	102.58
Weighted Average Exercise Price, Exercised	59.26
Weighted Average Exercise Price, Forfeited
Weighted Average Exercise Price, Outstanding at September 30, 2016	67.64
Weighted Average Exercise Price, Exercisable at September 30, 2016	$ 57.69
Weighted Average Remaining Contract Life, Outstanding at September 30, 2016	5 years 4 months 28 days
Weighted Average Remaining Contract Life, Exercisable at September 30, 2016	4 years
Aggregate Intrinsic Value, Outstanding at September 30, 2016	$ 11,380
Aggregate Intrinsic Value, Exercisable at September 30, 2016	$ 9,472

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Stock Compensation (Nonvested Restricted Stock Units) (Details) - Restricted Stock [Member] - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units, Nonvested at December 31, 2015	78,652
Number of Units, Granted	119,950
Number of Units, Vested	(47,779)	(25,384)
Number of Units, Forfeited	(5,430)
Number of Units, Nonvested at September 30, 2016	145,393
Weighted Average Grant Date Fair Value, Nonvested at December 31, 2015	$ 78.44
Weighted Average Grant Date Fair Value, Granted	87.45	$ 82.78
Weighted Average Grant Date Fair Value, Vested	80.45
Weighted Average Grant Date Fair Value, Forfeited	74.79
Weighted Average Grant Date Fair Value, Nonvested at September 30, 2016	$ 58.71