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 June 30, 2015

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 July 27, 2015, the number of shares of the registrant’s common stock, $0.01 par value per share, outstanding was 26,971,885.

PS BUSINESS PARKS, INC.

INDEX

	Page
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
Consolidated balance sheets as of June 30, 2015 (unaudited) and December 31, 2014	3
Consolidated statements of income (unaudited) for the three and six months ended
June 30, 2015 and 2014	4
Consolidated statement of equity (unaudited) for the six months ended June 30, 2015	5
Consolidated statements of cash flows (unaudited) for the six months ended
June 30, 2015 and 2014	6
Notes to consolidated financial statements (unaudited)	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3. Quantitative and Qualitative Disclosures About Market Risk	32
Item 4. Controls and Procedures	32
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	33
Item 1A. Risk Factors	33
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	33
Item 6. Exhibits	34

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

PS BUSINESS PARKS, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share data)

	June 30,		December 31,
	2015		2014
	(Unaudited)
ASSETS
Cash and cash equivalents	$	200,194	$	152,467
Real estate facilities, at cost:
Land		793,569		793,569
Buildings and improvements		2,200,094		2,182,993
		2,993,663		2,976,562
Accumulated depreciation		(1,036,023)		(991,497)
		1,957,640		1,985,065
Properties held for disposition, net		14,267		25,937
Land and building held for development		26,288		24,442
		1,998,195		2,035,444
Rent receivable, net		4,538		2,838
Deferred rent receivable, net		28,199		26,050
Other assets		8,493		10,315
Total assets	$	2,239,619	$	2,227,114
LIABILITIES AND EQUITY
Accrued and other liabilities	$	70,014	$	68,905
Mortgage note payable		250,000		250,000
Total liabilities		320,014		318,905
Commitments and contingencies
Equity:
PS Business Parks, Inc.’s shareholders’ equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized,
39,800 shares issued and outstanding at
June 30, 2015 and December 31, 2014		995,000		995,000
Common stock, $0.01 par value, 100,000,000 shares authorized,
26,971,885 and 26,919,161 shares issued and outstanding at
June 30, 2015 and December 31, 2014, respectively		268		268
Paid-in capital		714,182		709,008
Cumulative net income		1,306,231		1,244,946
Cumulative distributions		(1,293,133)		(1,235,941)
Total PS Business Parks, Inc.’s shareholders’ equity		1,722,548		1,713,281
Noncontrolling interests:
Common units		197,057		194,928
Total noncontrolling interests		197,057		194,928
Total equity		1,919,605		1,908,209
Total liabilities and equity	$	2,239,619	$	2,227,114

See accompanying notes.

3

PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited, in thousands, except per share data)

	For The Three Months				For The Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Revenues:
Rental income	$	92,948	$	93,986	$	185,263	$	189,307
Facility management fees		133		165		280		331
Total operating revenues		93,081		94,151		185,543		189,638
Expenses:
Cost of operations		30,057		31,535		61,803		64,979
Depreciation and amortization		27,025		28,295		53,258		56,736
General and administrative		3,497		3,363		6,896		5,850
Total operating expenses		60,579		63,193		121,957		127,565
Other income and (expense):
Interest and other income		145		95		252		157
Interest and other expense		(3,338)		(3,403)		(6,661)		(6,779)
Total other income and (expense)		(3,193)		(3,308)		(6,409)		(6,622)
Gain on sale of real estate facilities		—		—		12,487		—
Net income	$	29,309	$	27,650	$	69,664	$	55,451
Net income allocation:
Net income allocable to noncontrolling interests:
Noncontrolling interests — common units	$	3,016	$	2,669	$	8,379	$	5,372
Total net income allocable to noncontrolling interests		3,016		2,669		8,379		5,372
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders		15,122		15,122		30,244		30,244
Restricted stock unit holders		42		33		140		69
Common shareholders		11,129		9,826		30,901		19,766
Total net income allocable to PS Business Parks, Inc.		26,293		24,981		61,285		50,079
Net income	$	29,309	$	27,650	$	69,664	$	55,451
Net income per common share:
Basic	$	0.41	$	0.37	$	1.15	$	0.74
Diluted	$	0.41	$	0.36	$	1.14	$	0.73
Weighted average common shares outstanding:
Basic		26,956		26,899		26,941		26,881
Diluted		27,033		26,999		27,027		26,981
Dividends declared per common share	$	0.50	$	0.50	$	1.00	$	1.00

See accompanying notes.

4

PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENT OF EQUITY

FOR THE SIX MONTHS ENDED JUNE30, 2015

(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, 2014	39,800	$	995,000	26,919,161	$	268	$	709,008	$	1,244,946	$	(1,235,941)	$	1,713,281	$	194,928	$	1,908,209
Exercise of stock options	—		—	39,500		—		2,000		—		—		2,000		—		2,000
Stock compensation, net	—		—	13,224		—		4,229		—		—		4,229		—		4,229
Net income	—		—	—		—		—		61,285		—		61,285		8,379		69,664
Distributions:
Preferred stock	—		—	—		—		—		—		(30,244)		(30,244)		—		(30,244)
Common stock	—		—	—		—		—		—		(26,948)		(26,948)		—		(26,948)
Noncontrolling interests	—		—	—		—		—		—		—		—		(7,305)		(7,305)
Adjustment to noncontrolling interests
in underlying operating partnership	—		—	—		—		(1,055)		—		—		(1,055)		1,055		—
Balances at June 30, 2015	39,800	$	995,000	26,971,885	$	268	$	714,182	$	1,306,231	$	(1,293,133)	$	1,722,548	$	197,057	$	1,919,605

See accompanying notes.

5

PS BUSINESS PARKS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited, in thousands)

	For The Six Months
	Ended June 30,
	2015		2014
Cash flows from operating activities:
Net income	$	69,664	$	55,451
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense		53,258		56,736
In-place lease adjustment		(663)		(441)
Tenant improvement reimbursements net of lease incentives		(940)		(839)
Gain on sale of real estate facilities		(12,487)		—
Stock compensation		5,037		3,898
Decrease (increase) in receivables and other assets		(2,954)		4,664
Increase (decrease) in accrued and other liabilities		530		(2,959)
Total adjustments		41,781		61,059
Net cash provided by operating activities		111,445		116,510
Cash flows from investing activities:
Capital expenditures to real estate facilities		(23,865)		(22,250)
Capital expenditures to land and building held for development		(1,846)		(1,219)
Proceeds from sale of real estate facilities		24,490		—
Net cash used in investing activities		(1,221)		(23,469)
Cash flows from financing activities:
Proceeds from the exercise of stock options		2,000		2,443
Distributions paid to preferred shareholders		(30,244)		(30,244)
Distributions paid to noncontrolling interests — common units		(7,305)		(7,305)
Distributions paid to common shareholders		(26,948)		(26,893)
Net cash used in financing activities		(62,497)		(61,999)
Net increase in cash and cash equivalents		47,727		31,042
Cash and cash equivalents at the beginning of the period		152,467		31,481
Cash and cash equivalents at the end of the period	$	200,194	$	62,523
Supplemental schedule of non-cash investing and financing activities:
Adjustment to noncontrolling interests in underlying operating partnership:
Noncontrolling interests — common units	$	1,055	$	984
Paid-in capital	$	(1,055)	$	(984)

See accompanying notes.

6

PS BUSINESS PARKS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2015

1. Organization and description of business

PS Business Parks, Inc. (“PSB”) was incorporated in the state of California in 1990. As of June 30, 2015, PSB owned 77.8%  of 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 partnership units, PS would own42.2%  (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 ofJune 30, 2015, the Company owned and operated 28.4million rentable square feet of commercial space concentrated primarily in six states. The Company also manages 838,000 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 thethree andsix months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the year ended December 31, 2015. 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, 2014.  

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.

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.

7

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, which represents the cumulative allowances less write-offs of uncollectible rent, 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 June 30, 2015 and December 31, 2014. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $877,000 and $841,000 at June 30, 2015 and December 31, 2014, 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

8

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, in excess of $1,000 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 and building held for 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 June 30, 2015, the value of in-place leases resulted in net intangible assets of $2.0 million, net of $8.3 million of accumulated amortization with a weighted average amortization period of 8.4 years, and net intangible liabilities of $2.7 million, net of $8.1 million of accumulated amortization with a weighted average amortization period of 4.8 years. As of December 31, 2014, the value of in-place leases resulted in net intangible assets of $2.5 million, net of $7.8 million of accumulated amortization and net intangible liabilities of $3.9 million, net of $6.9 million of accumulated amortization.

The Company recorded net increases in rental income of $352,000 and $244,000 for the three months ended June 30, 2015 and 2014, respectively, and $663,000 and $441,000 for the six months ended June 30, 2015and 2014, 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 June 30, 2015, the Company did not consider any assets to be impaired.

9

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 11.

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 2014 and intends to continue to meet such requirements for 2015. 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 June 30, 2015, 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 or units of its intent to redeem such shares or units.

10

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 Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Net income allocable to common shareholders	$	11,129	$	9,826	$	30,901	$	19,766
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		26,956		26,899		26,941		26,881
Net effect of dilutive stock compensation — based on
treasury stock method using average market price		77		100		86		100
Diluted weighted average common shares outstanding		27,033		26,999		27,027		26,981
Net income per common share — Basic	$	0.41	$	0.37	$	1.15	$	0.74
Net income per common share — Diluted	$	0.41	$	0.36	$	1.14	$	0.73

Options to purchase 46,000 and 16,000 shares for the three months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because such options were considered anti-dilutive. Options to purchase 32,000 and 14,000 shares for the six months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because 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 2014 in order to conform to the 2015 presentation.

Recently issued accounting standards

In May, 2014, the FASB issued new accounting guidance 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 permittedfor the Company’s fiscal year beginning January 1, 2017. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of 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.

11

3. Real estate facilities

The activity in real estate facilities for the six months ended June 30, 2015 is as follows (in thousands):

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2014	$	793,569	$	2,182,993	$	(991,497)	$	1,985,065
Capital expenditures, net		—		25,685		—		25,685
Disposals		—		(8,254)		8,254		—
Depreciation and amortization		—		—		(53,258)		(53,258)
Transfer to properties held for disposition		—		(330)		478		148
Balances at June 30, 2015	$	793,569	$	2,200,094	$	(1,036,023)	$	1,957,640

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 February 27, 2015, as part of an eminent domain process with the Central Puget Sound Regional Transit Authority, the Company sold five buildings, aggregating82,000 square feet, at the Company’s Overlake Business Park located in Redmond, Washington, for $13.9 million, which resulted in a net gain of $4.8 million.

On February 13, 2015, the Company completed the sale of Milwaukie Business Park located in Milwaukie, Oregon, for net proceeds of $10.6 million, which resulted in a net gain of $7.6 million. The park consists of six multi-tenant flex buildings aggregating 102,000 square feet.

The five buildings at the Company’s Overlake Business Park, Milwaukie Business Park, as well as a 23,000 square foot building in Tempe, Arizona, and two business parks aggregating 367,000 square feet in Sacramento, California, have been classified as properties held for disposition as of December 31, 2014,while the 23,000 square foot building in Tempe, Arizonaand the two business parks aggregating 367,000 square feet in Sacramento, California, continued to be classified as property held for disposition as of June 30, 2015.  

Subsequent to June 30, 2015, the Company completed the sale of the two business parks located in Sacramento, California,noted above, for net proceeds of $29.3 million.

12

The Company has a 125,000 square foot building located in Northern Virginia classified as land and building held for development.The Company has entered into a joint venture, in which it will maintain a 95.0% economic interest, with a real estate development company to pursue a ground-up multi-family development on thesite. Prior to the property being contributed, all costs related to the pre-development are split evenly between the Company and its joint venture partner. As of June 30, 2015, the Company has received all required entitlements, allowing it to develop a multi-family building up to 450,000 square feet on the property. The property will be contributed to the joint venture upon commencement of construction, which is anticipated to occur in late 2015 or early 2016.  The land and capitalized development costs were $20.2 million and $18.4 million at June 30, 2015 and December 31, 2014, respectively. For the six months ended June 30, 2015, the Company capitalized costs of $1.8 million related to this development, of which $531,000were capitalized interest costs.

4. 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 June 30, 2015(in thousands):

2015	$	136,970
2016		228,471
2017		168,971
2018		119,817
2019		80,736
Thereafter		137,622
Total	$	872,587

In addition to minimum rental payments, certain tenants reimburse the Company for their pro rata share of specified operating expenses. Such reimbursements amounted to $19.9 million and $19.8 million for the three months ended June 30, 2015 and 2014, respectively, and $40.0 million and $40.8 million for the six months ended June 30, 2015 and 2014, respectively. These amounts are included as rental income in the accompanying consolidated statements of income.

Leases accounting for 4.2% of total leased square footage are subject to termination options,of which1.1% of total leased square footage have termination options exercisable through December 31, 2015 (unaudited). 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.

5. 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 London Interbank Offered Rate(“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 0.925%. 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 0.15%). The Company had no balance outstanding on the Credit Facilityat June 30, 2015 and December 31, 2014. The Company had $885,000and $1.0 million of unamortized commitment fees as of June 30, 2015 and December 31, 2014, respectively. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance with as of June 30, 2015. Interest on outstanding borrowings is payable monthly.  

13

6. Mortgage note payable

The Company has one mortgage note payable with a fixed interest rate of 5.45%, secured by 4.8 million square feet of commercial properties with a net book value of $423.2 million. The interest is payable monthly, and the mortgage note payable has a maturity date of December, 2016. The Company had $250.0 million outstanding on the mortgage note payable as of June 30, 2015 and December 31, 2014.  

7. 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 June 30, 2015, 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 42.2%  (or 14.5 million shares) of the Company’s common equity.

8. 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,

14

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 $133,000 and $165,000 for the three months ended June 30, 2015 and 2014, respectively and $280,000 and $331,000 for the six months ended June 30, 2015 and 2014, 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 $19,000 and $17,000 for the three months ended June 30, 2015 and 2014, respectively, and $38,000 and $33,000 for the six months ended June 30, 2015 and 2014, 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 $117,000 and $118,000 for the three months ended June 30, 2015 and 2014, respectively, and $235,000 and $226,000 for the six months ended June 30, 2015 and 2014, respectively.

The Company had net amounts due to PS of $101,000 atJune 30, 2015 and due from PS of $166,000December 31, 2014, respectively, for these contracts, as well as for certain operating expenses paid by the Company on behalf of PS.

9. Shareholders’ equity

Preferred stock

As of June 30, 2015 and December 31, 2014, 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 R	October, 2010	October, 2015	6.875%	3,000	$	75,000
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				39,800	$	995,000

The Company paid $15.1 million and $30.2 million in distributions to its preferred shareholders for each of the threeand sixmonths ended June 30, 2015 and 2014, respectively.

15

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 June 30, 2015, 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 $31.8 million of deferred costs in connection with the issuance of preferred stock as of June 30, 2015 and December 31, 2014, 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 six months ended June 30, 2015 and 2014.

The Company paid $13.5 million ($0.50 per common share) and $26.9 million ($1.00 per common share) in distributions to its common shareholders for each of the threeand six months ended June 30, 2015 and 2014,  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.

10. 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.

11. 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 six months ended June 30, 2015 and 2014 was $8.49 per share and $10.95 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 six months ended June 30, 2015 and 2014, respectively: a dividend yield of 2.5% and 2.3% expected volatility of 16.1% and 17.7%;  expected life of five years; and risk-free interest rates of 1.4% and 1.7%.

The weighted average grant date fair value of restricted stock units granted during the sixmonths ended June 30, 2015  was $83.47. The Company calculated the fair value of each restricted stock unit grant using the market value on the date of grant.No restricted stock units were granted for the six months ended June 30, 2014.

16

At June 30, 2015, there was a combined total of 842,000 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, 2014	341,852	$	57.11
Granted	16,000	$	80.13
Exercised	(39,500)	$	50.63
Forfeited	—	$	—
Outstanding at June 30, 2015	318,352	$	59.07	5.30 Years	$	4,564
Exercisable at June 30, 2015	252,606	$	55.04	4.55 Years	$	4,396

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2014	35,170	$	65.62
Granted	66,506	$	83.47
Vested	(21,184)	$	76.73
Forfeited	(4,120)	$	74.25
Nonvested at June 30, 2015	76,372	$	77.61

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 (“2014 LTEIP”), with certain employees of the Company. Under the 2014 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 2014 LTEIP there is an annual award following the end of each of the fouryears 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 shares allocated to be awarded for such year are added to the shares that may be received if the four-year target is achieved. All restricted stock unit awards under the 2014 LTEIP vest in four equal annual installments beginning from the date of award. Up to 98,600 restricted stock units would be granted for each of the four years assuming achievement was met and up to 84,514 restricted stock units would be granted for the cumulative four-year period assuming achievement was met. Compensation expense is recognized based on the shares expected to be awarded based on the target level that is expected to be achieved. Net compensation expense of $2.4million related to the 2014 LTEIP was recognized during each of the three months ended June 30, 2015and 2014 and $4.5 million and $3.2 million for the six months ended June 30, 2015 and 2014, respectively.

The 2014 LTEIP targets for 2014 were achieved at the threshold total return level. As such, 66,506 restricted stock units were granted during the six months ended June 30, 2015 at a weighted average grant date fair value of $83.47.

Included in the Company’s consolidated statements of income for the three months ended June 30, 2015 and 2014, was $49,000 and $108,000, respectively, in net compensation expense related to stock options. Net compensation expense of $177,000 and $230,000 related to stock options was recognized during the six months ended June 30, 2015 and 2014, respectively. Excluding the 2014 LTEIP amortization of $2.4million for each period, net compensation expense of $84,000 and $108,000related to restricted stock units was recognized during the three months ended June 30, 2015 and 2014, respectively. Excluding the 2014 LTEIPamortization of $4.5 million and $3.2 million, respectively, net compensation expense of $192,000 and $284,000 related to restricted stock units was recognized during the six months ended June 30, 2015 and 2014, respectively.

17

As of June 30, 2015, there was $496,000 of unamortized compensation expense related to stock options expected to be recognized over a weighted average period of 3.4 years. As of June 30, 2015, there was $24.3 million (includes $23.0 million from the 2014 LTEIP) of unamortized compensation expense related to restricted stock units expected to be recognized over a weighted average period of 4.7 years.

Cash received from 39,500 stock options exercised during the six months ended June 30, 2015 was $2.0 million. Cash received from 49,273 stock options exercised during the six months ended June 30, 2014 was $2.4 million. The aggregate intrinsic value of the stock options exercised was $1.0million and $1.7 million during the six months ended June 30, 2015 and 2014, respectively.

During the six months ended June 30, 2015,  21,184 restricted stock units vested  (16,634 related to the 2014 LTEIP); in settlement of these units, 13,224 shares were issued  (10,495 related to the 2014 LTEIP), net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the six months ended June 30, 2015 was $1.7 million ($1.3 million related to the 2014 LTEIP). During the six months ended June 30, 2014,  8,430 restricted stock units vested; in settlement of these units, 5,341 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the six months ended June 30, 2014 was $708,000.

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 $79,000 and $77,000 in compensation expense for the three months ended June 30, 2015 and 2014, respectively and $158,000 and $153,000 for the six months ended June 30, 2015 and 2014, respectively. As of June 30, 2015 and 2014, there was $1.4 million and $1.3 million, respectively, of unamortized compensation expense related to these shares. No shares were issued during the six months ended June 30, 2015 and 2014.

18

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, 2014. 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 June 30, 2015, the Company owned and operated 28.4 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 threeand sixmonths ended June 30, 2015 and 2014 exclude assets held for sale or sold. 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 assets held for sale or sold.

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 six months of 2015, the Company executed leases comprising 4.8million square feet of space including 2.6million square feet of renewals of existing leases and 2.2million square feet of new leases. Overall, the change in rental rates for the Company continuedto 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, 2014.  

Effect of Economic Conditions on the Company’s Operations: During the first six months of 2015, most markets continued to reflect signs of improving occupancy and rental rates.  Overall, new rental rates for the Company improved over expiring rental rates on executed leases as economic conditions continue to improve. The Virginia and Marylandmarketscontinue to recover at a slowerpacethan other markets and given lease expirations over the next

19

twelve months, the Company may continue to experience rental rate volatility and modest growth in occupancy 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 Six Months
	Ended June 30,
	2015		2014
Write-offs of uncollectible rent	$	364	$	559
Write-offs as a percentage of rental income		0.2%		0.3%
Square footage of leases terminated prior to their scheduled expiration
due to business failures/bankruptcies		273		144
Accelerated depreciation and amortization related to unamortized tenant improvements
and lease commissions associated with early terminations	$	396	$	286

As of July 27, 2015, the Company had 54,000 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 sixmonths ended June 30, 2015, initial rental rates on new and renewed leases within the Company’s total portfolio increased 4.0% over expiring rents, a significant improvement from the year ended December 31, 2014, in which initial rental rates on new and renewed leases increased by 0.5%. The Company’s Same Park (defined below) occupancy rate at June 30, 2015 was 93.9%, compared to 92.6% at June 30, 2014. The Company’s total portfolio occupancy rate at June 30, 2015 was 93.4%, compared to 91.7% at June 30, 2014.  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 from time to time dispose of assets based on market conditions.

As of June 30, 2015, the blended occupancy rate of the nine assets acquired during 2013and 2014was 87.4% compared to a blended occupancy rate of 66.1% at the time of acquisition. As of June 30, 2015, the Company had 279,000 square feet of vacant space spread over these acquisitions, which we believe provides the Company with considerable opportunity to generate additional rental income given that the Company’s Same Park assets in these same submarkets have a weighted average occupancy of 95.2% atJune 30, 2015. The table below contains the assets acquired from 2013 to 2014(dollars and square feet in thousands):

20

					Square	Occupancy at	Occupancy at
Property	Date Acquired	Location	Purchase Price		Feet	Acquisition	June 30, 2015
Charcot Business Park II	December, 2014	San Jose, California	$	16,000	119	96.7%	91.2%
McNeil 1	November, 2014	Austin, Texas		10,550	246	53.3%	79.7%
Springlake Business
Center II	August, 2014	Dallas, Texas		5,148	145	35.4%	60.5%
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%
Bayshore Corporate
Commons	December, 2013	San Mateo, California		60,500	340	81.8%	82.8%
Valwood Business Park	November, 2013	Dallas, Texas		12,425	245	83.5%	95.6%
Dallas Flex Portfolio	October, 2013	Dallas, Texas		27,900	559	72.1%	89.8%
Arapaho Business Park	July, 2013	Dallas, Texas		14,750	389	66.5%	91.0%
Total			$	161,132	2,211	66.1%	87.4%

On February 27, 2015, as part of an eminent domain process with the Central Puget Sound Regional Transit Authority, the Company sold five buildings, aggregating 82,000 square feet, at the Company’s Overlake Business Park located in Redmond, Washington, for $13.9 million, which resulted in a net gain of $4.8 million.

On February 13, 2015, the Company completed the sale of Milwaukie Business Park located in Milwaukie, Oregon, for net proceeds of $10.6 million, which resulted in a net gain of $7.6 million. The park consists of six multi-tenant flex buildings aggregating 102,000 square feet.

The five buildings at the Company’s Overlake Business Park, Milwaukie Business Park, as well as a 23,000 square foot building in Tempe, Arizona, and two business parks aggregating 367,000 square feet in Sacramento, California, have been classified as properties held for disposition as of December 31, 2014,while the 23,000 square foot building in Tempe, Arizona and the two business parks aggregating 367,000 square feet in Sacramento, California, continued to be classified as property held for disposition as of June 30, 2015.  

Subsequent to June 30, 2015, the Company completed the sale of the two business parks located in Sacramento, California, noted above, for net proceeds of $29.3 million.

The Company has a 125,000 square foot building located in Northern Virginia classified as land and building held for development. The Company has entered into a joint venture,  in which it will maintain a 95.0% economic interest, with a real estate development company to pursue a ground-up multi-family development of this site. Prior to the property being contributed, all costs related to the pre-development are split evenly between the Company and its joint venture partner. As of June 30, 2015, the Company has received all required entitlements,allowing it to develop a multi-family building up to 450,000 square feet on the property. The property will be contributedto the joint venture upon commencement of construction, which is anticipated to occur in late 2015 or early 2016.  The land and capitalized development costs were$20.2 million and $18.4 million at June 30, 2015 and December 31, 2014, respectively. For the six months ended June 30, 2015, the Company capitalized costs of $1.8 million related to this development, of which $531,000were capitalized interest costs.

Scheduled Lease Expirations: In addition to the 1.8 million square feet, or 6.6%, of space available in our total portfolio as of June 30, 2015,  1,068 leasesrepresenting 13.1% of the leased square footage of our total portfolio or 12.1% of annualized rental income are scheduled to expire during the remainder of 2015. 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.

21

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 thethreeand sixmonths ended June 30, 2015 and 2014.  NOI is  a non-GAAP financial measure. The Company uses NOI and its components as a measurement of the performance of its commercial real estate. Management believes that these financial measures provide them, as well as the investor, the most consistent measurement on a comparative basis of the performance of the commercial real estate and its contribution to the value of the Company. 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, the tables below exclude amortization of the Senior Management Long-Term Equity Incentive Plan (“2014 LTEIP”) in cost of operations (for field leadership) and general and administrative expenses (for executive management).

Concentration of Portfolio by Region:The table below reflects the Company’s square footage based on regional concentration as of June 30, 2015, excluding assets held for sale or sold.As part of the table below, we have reconciled total NOI to net income (in thousands):

		Percent of	NOI
	Square	Square	For The Six Months		Percent
Region	Footage	Footage	Ended June 30, 2015		of Total NOI
California
Northern California	7,245	25.9%	$	27,972	22.6%
Southern California	3,988	14.2%		19,773	16.0%
Texas
Northern Texas	3,125	11.2%		9,380	7.6%
Southern Texas	1,963	7.0%		6,575	5.3%
Virginia	4,040	14.5%		26,816	21.7%
Florida	3,866	13.8%		11,889	9.6%
Maryland	2,352	8.4%		15,995	12.9%
Washington	1,390	5.0%		5,244	4.3%
Total	27,969	100.0%	$	123,644	100.0%
Reconciliation of NOI to net income
Total NOI			$	123,644
Other income and (expenses):
NOI from assets held for sale or sold				1,327
2014 LTEIP amortization:
Cost of operations				(1,511)
General and administrative				(3,000)
Facility management fees				280
Interest and other income				252
Interest and other expenses				(6,661)
Depreciation and amortization				(53,258)
General and administrative				(3,896)
Gain on sale of real estate facilities				12,487
Net income			$	69,664

22

Concentration of Credit Risk by Industry: The information below depicts the industry concentration of our tenant base as of June 30, 2015,  excluding assets held for sale.  The Company analyzes this concentration to minimize significant industry exposure risk.

	Percent of
	Annualized
Industry	Rental Income
Business services	17.9%
Government	10.4%
Computer hardware, software and related services	10.2%
Warehouse, distribution, transportation and logistics	10.1%
Health services	9.5%
Retail, food, and automotive	6.7%
Engineering and construction	6.6%
Insurance and financial services	4.4%
Home furnishings	2.9%
Electronics	2.8%
Aerospace/defense products and services	2.8%
Communications	2.2%
Educational services	1.6%
Other	11.9%
Total	100.0%

The information below depicts the Company’s top 10 customers by annualized rental income as of June 30, 2015,  excluding assets held for sale (in thousands):

				Percent of
		Annualized		Annualized
Tenants	Square Footage	Rental Income (1)		Rental Income
US Government	847	$	20,841	5.7%
Kaiser Permanente	199		4,498	1.2%
Lockheed Martin Corporation	168		3,818	1.0%
Keeco, L.L.C.	460		3,331	0.9%
Luminex Corporation	185		3,047	0.8%
Wells Fargo	118		2,209	0.6%
MAXIMUS, Inc.	102		1,993	0.5%
Salient Federal Solutions, Inc.	58		1,911	0.5%
Investorplace Media, LLC	46		1,726	0.5%
Inova Health Care Services	63		1,694	0.5%
Total	2,246	$	45,068	12.2%

____________

⁽¹⁾ For leases expiring prior to December 31, 2015, annualized rental income represents income to be received under existing leases from July 1, 2015 through the date of expiration.

Comparative Analysis of the Three and Six Months Ended June 30, 2015 to the Three andSixMonths Ended June 30, 2014

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 owned or acquired prior to January 1, 2013, excluding 390,000 square feet of assets held for sale as of June 30, 2015.  Therefore, Same Park rental income and cost of operations amounts exclude such assets. Operating properties that the Company acquired subsequent to January 1, 2013 are referred to as “Non-Same Park.” For thethree andsixmonths ended June 30, 2015

23

and 2014, the Same Park facilities constitute 25.8 million rentable square feet, representing 90.8% of the 28.4 million square feet in the Company’s total portfolio as of June 30, 2015.

The following table presents the operating results of the Company’s properties for thethree andsixmonths ended June 30, 2015 and 2014 in addition to other income and expenses items affecting net income (inthousands, except per square foot data):

	For The Three Months					For The Six Months
	Ended June 30,					Ended June 30,
	2015		2014		Change	2015		2014		Change
Rental income:
Same Park (25.8 million rentable square feet)	$	85,970	$	83,018	3.6%	$	171,189	$	167,039	2.5%
Non-Same Park (2.2 million rentable square feet)		6,000		3,544	69.3%		11,708		7,494	56.2%
Total rental income		91,970		86,562	6.2%		182,897		174,533	4.8%
Cost of operations:
Same Park		26,585		26,028	2.1%		54,700		54,561	0.3%
Non-Same Park		2,266		1,858	22.0%		4,553		3,485	30.6%
Total cost of operations		28,851		27,886	3.5%		59,253		58,046	2.1%
Net operating income
Same Park		59,385		56,990	4.2%		116,489		112,478	3.6%
Non-Same Park		3,734		1,686	121.5%		7,155		4,009	78.5%
Total net operating income		63,119		58,676	7.6%		123,644		116,487	6.1%
Other income and (expenses):
NOI from assets held for sale or sold (1)		551		4,631	(88.1%)		1,327		9,026	(85.3%)
2014 LTEIP amortization:
Cost of operations		(779)		(856)	(9.0%)		(1,511)		(1,185)	27.5%
General and administrative		(1,642)		(1,518)	8.2%		(3,000)		(2,047)	46.6%
Facility management fees		133		165	(19.4%)		280		331	(15.4%)
Other income and expenses		(3,193)		(3,308)	(3.5%)		(6,409)		(6,622)	(3.2%)
Depreciation and amortization		(27,025)		(28,295)	(4.5%)		(53,258)		(56,736)	(6.1%)
General and administrative		(1,855)		(1,845)	0.5%		(3,896)		(3,803)	2.4%
Gain on sale of real estate facilities		—		—	—		12,487		—	100.0%
Net income	$	29,309	$	27,650	6.0%	$	69,664	$	55,451	25.6%
Same Park gross margin (2)		69.1%		68.6%	0.7%		68.0%		67.3%	1.0%
Same Park weighted average occupancy		93.1%		92.2%	1.0%		92.9%		92.0%	1.0%
Non-Same Park weighted average occupancy		82.8%		75.9%	9.1%		81.0%		74.7%	8.4%
Same Park annualized realized rent per square foot (3)	$	14.34	$	13.98	2.6%	$	14.31	$	14.09	1.6%

____________

⁽¹⁾ The Company sold one business park located in Milwaukie, Oregon, on February 13, 2015 and five buildings located in Redmond, Washington, on February 27, 2015. Combined with the business parks in Beaverton, Oregon, and Phoenix, Arizona, sold in 2014 and assets held for sale in Tempe, Arizona, and Sacramento, California,these assets generated rental income of $978,000 and $2.4 million for the three and six months ended June 30, 2015, respectively, compared to $7.4 million and $14.8 million for the three and six months ended June 30, 2014, respectively. Cost of operations for the assets held for sale or sold was $427,000 and $1.0 million for the three and six months ended June 30, 2015, respectively, compared to $2.8 million and $5.7 million for the three and six months ended June 30, 2014, respectively.

⁽²⁾ Computed by dividing Same Park NOI by Same Park rental income.

⁽³⁾ Represents the annualized Same Park rental income earned per occupied square foot.

24

Supplemental Property Data and Trends: NOI is summarized for thethree andsix months ended June 30, 2015 and 2014 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 threeand sixmonths endedJune 30, 2015 and 2014. 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, 2013, 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):

Three Months Ended June 30, 2015 and 2014:

	Rental		Rental			Cost of		Cost of
	Income		Income			Operations		Operations			NOI		NOI
	June 30,		June 30,		Increase	June 30,		June 30,		Increase	June 30,		June 30,		Increase
Region	2015		2014		(Decrease)	2015		2014		(Decrease)	2015		2014		(Decrease)
Same Park
Northern California	$	17,171	$	15,939	7.7%	$	4,488	$	4,615	(2.8%)	$	12,683	$	11,324	12.0%
Southern California		14,813		13,566	9.2%		4,670		4,487	4.1%		10,143		9,079	11.7%
Northern Texas		4,251		4,533	(6.2%)		1,685		1,647	2.3%		2,566		2,886	(11.1%)
Southern Texas		5,192		4,899	6.0%		1,958		1,747	12.1%		3,234		3,152	2.6%
Virginia		20,369		20,532	(0.8%)		6,472		6,045	7.1%		13,897		14,487	(4.1%)
Florida		8,323		8,493	(2.0%)		2,448		2,501	(2.1%)		5,875		5,992	(2.0%)
Maryland		12,300		12,049	2.1%		3,950		4,077	(3.1%)		8,350		7,972	4.7%
Washington		3,551		3,007	18.1%		914		909	0.6%		2,637		2,098	25.7%
Total Same Park		85,970		83,018	3.6%		26,585		26,028	2.1%		59,385		56,990	4.2%
Non-Same Park
Northern California		2,435		1,570	55.1%		838		639	31.1%		1,597		931	71.5%
Northern Texas		3,062		1,974	55.1%		1,188		1,219	(2.5%)		1,874		755	148.2%
Southern Texas		176		—	100.0%		144		—	100.0%		32		—	100.0%
Florida		327		—	100.0%		96		—	100.0%		231		—	100.0%
Total Non-Same Park		6,000		3,544	69.3%		2,266		1,858	22.0%		3,734		1,686	121.5%
Total	$	91,970	$	86,562	6.2%	$	28,851	$	27,886	3.5%	$	63,119	$	58,676	7.6%
Reconciliation of NOI to net income
Total NOI											$	63,119	$	58,676	7.6%
Other income and (expenses):
NOI from assets held for sale or sold												551		4,631	(88.1%)
2014 LTEIP amortization:
Cost of operations												(779)		(856)	(9.0%)
General and administrative												(1,642)		(1,518)	8.2%
Facility management fees												133		165	(19.4%)
Other income and expenses												(3,193)		(3,308)	(3.5%)
Depreciation and amortization												(27,025)		(28,295)	(4.5%)
General and administrative												(1,855)		(1,845)	0.5%
Net income											$	29,309	$	27,650	6.0%

25

Six Months Ended June 30, 2015 and 2014:

	Rental		Rental			Cost of		Cost of
	Income		Income			Operations		Operations			NOI		NOI
	June 30,		June 30,		Increase	June 30,		June 30,		Increase	June 30,		June 30,		Increase
Region	2015		2014		(Decrease)	2015		2014		(Decrease)	2015		2014		(Decrease)
Same Park
Northern California	$	34,076	$	31,892	6.8%	$	9,142	$	9,085	0.6%	$	24,934	$	22,807	9.3%
Southern California		29,140		27,423	6.3%		9,367		8,944	4.7%		19,773		18,479	7.0%
Northern Texas		8,942		9,108	(1.8%)		3,215		3,094	3.9%		5,727		6,014	(4.8%)
Southern Texas		10,265		9,665	6.2%		3,792		3,417	11.0%		6,473		6,248	3.6%
Virginia		40,577		41,137	(1.4%)		13,761		13,396	2.7%		26,816		27,741	(3.3%)
Florida		16,480		16,989	(3.0%)		4,953		5,123	(3.3%)		11,527		11,866	(2.9%)
Maryland		24,604		24,831	(0.9%)		8,609		9,546	(9.8%)		15,995		15,285	4.6%
Washington		7,105		5,994	18.5%		1,861		1,956	(4.9%)		5,244		4,038	29.9%
Total Same Park		171,189		167,039	2.5%		54,700		54,561	0.3%		116,489		112,478	3.6%
Non-Same Park
Northern California		4,761		3,488	36.5%		1,723		1,280	34.6%		3,038		2,208	37.6%
Northern Texas		5,975		4,006	49.2%		2,322		2,205	5.3%		3,653		1,801	102.8%
Southern Texas		396		—	100.0%		294		—	100.0%		102		—	100.0%
Florida		576		—	100.0%		214		—	100.0%		362		—	100.0%
Total Non-Same Park		11,708		7,494	56.2%		4,553		3,485	30.6%		7,155		4,009	78.5%
Total	$	182,897	$	174,533	4.8%	$	59,253	$	58,046	2.1%	$	123,644	$	116,487	6.1%
Reconciliation of NOI to net income
Total NOI											$	123,644	$	116,487	6.1%
Other income and (expenses):
NOI from assets held for sale or sold												1,327		9,026	(85.3%)
LTEIP amortization:
Cost of operations												(1,511)		(1,185)	27.5%
General and administrative												(3,000)		(2,047)	46.6%
Facility management fees												280		331	(15.4%)
Other income and expenses												(6,409)		(6,622)	(3.2%)
Depreciation and amortization												(53,258)		(56,736)	(6.1%)
General and administrative												(3,896)		(3,803)	2.4%
Gain on sale of real estate facilities												12,487		—	100.0%
Net income											$	69,664	$	55,451	25.6%

The following tables summarize Same Park weighted average occupancy rates and annualized realized rent per square foot by region for the threeand sixmonths ended June 30, 2015 and 2014.  

Three Months Ended June 30, 2015 and 2014:

				Annualized Realized
	Weighted Average Occupancy Rates			Rent Per Square Foot
Region	2015	2014	Change	2015		2014		Change
Northern California	97.2%	93.8%	3.6%	$	10.42	$	10.02	4.0%
Southern California	93.2%	92.5%	0.8%	$	15.95	$	14.72	8.4%
Northern Texas	85.1%	89.8%	(5.2%)	$	11.52	$	11.41	1.0%
Southern Texas	91.7%	94.6%	(3.1%)	$	13.18	$	12.06	9.3%
Virginia	91.3%	89.9%	1.6%	$	22.09	$	22.61	(2.3%)
Florida	93.1%	97.5%	(4.5%)	$	9.62	$	9.37	2.7%
Maryland	89.5%	88.1%	1.6%	$	23.36	$	23.26	0.4%
Washington	96.1%	83.1%	15.6%	$	10.63	$	10.37	2.5%
Total Same Park	93.1%	92.2%	1.0%	$	14.34	$	13.98	2.6%

26

Six Months Ended June 30, 2015 and 2014:

				Annualized Realized
	Weighted Average Occupancy Rates			Rent Per Square Foot
Region	2015	2014	Change	2015		2014		Change
Northern California	96.7%	93.7%	3.2%	$	10.39	$	10.04	3.5%
Southern California	93.0%	92.7%	0.3%	$	15.73	$	14.85	5.9%
Northern Texas	88.5%	90.2%	(1.9%)	$	11.53	$	11.41	1.1%
Southern Texas	92.3%	93.8%	(1.6%)	$	12.96	$	11.99	8.1%
Virginia	90.9%	89.6%	1.5%	$	22.08	$	22.73	(2.9%)
Florida	92.0%	97.6%	(5.7%)	$	9.64	$	9.36	3.0%
Maryland	89.1%	87.7%	1.6%	$	23.47	$	24.08	(2.5%)
Washington	95.1%	81.3%	17.0%	$	10.75	$	10.55	1.9%
Total Same Park	92.9%	92.0%	1.0%	$	14.31	$	14.09	1.6%

Rental Income:Rental income increased $5.4 million from $86.6 million for the three monthsended June 30, 2014 to $92.0 million for the three months ended June 30, 2015 as a result of an increase from the Same Park portfolio of $3.0million, or 3.6%, combined with a $2.5 million increase from Non-Same Park facilities.  Rental income increased $8.4 million from $174.5 million for the six months ended June 30, 2014 to $182.9 million for the six months ended June 30, 2015 as a result of a $4.2 million increase from Non-Same Park facilities combined with an increase from the Same Park portfolio of $4.2 million, or 2.5%.The three and six month increases in Same Parkrental income was due to an increase in occupancy and rental rates, while the Non-Same Park increase was due to a combination of an increase in occupancy and the acquisition of additional parks during the latter half of 2014. Including the assets held for sale or sold, rental income was $92.9 million and $185.3 million for the threeand six months ended June 30, 2015, respectively, and $94.0 million and $189.3 million for the three and six months ended June 30, 2014, respectively.

Facility Management Fees: Facility management fees, derived from Public Storage (“PS”), account for a small portion of the Company’s revenues. During the three months ended June 30, 2015,  $133,000 of revenue was recognized from facility management fees compared to $165,000 for the same period in 2014.During the six months ended June 30, 2015,  $280,000 in revenue was recognized from facility management fees compared to $331,000 for the same period in 2014.

Cost of Operations: Cost of operations increased $965,000,  or 3.5%,  from $27.9 million for the three months ended June 30, 2014 to $28.9 million for the three months ended June 30, 2015as a result of anincrease in the Same Park portfolio of $557,000, or 2.1%, combined with an increase in the Non-Same Park facilities of $408,000. Cost of Operations increased $1.2 million, or 2.1%, from $58.0 million for the six months ended June 30, 2014 to $59.3 million for the six months ended June 30, 2015 as a result of an increase in the Non-Same Park facilities of $1.1 million combined with a slight increase in the Same Park portfolio of $139,000,  or 0.3%. The three month increase in Same Park cost of operations was a result of increases in repairs and maintenance,  utility costs and higher property taxes driven by higher assessed values.Including the 2014 LTEIP amortization and assets held for sale or sold, cost of operations was $30.1 million and $61.8 million for the threeand six months ended June 30, 2015, respectively, and $31.5 million and $65.0 million for the three and six months ended June 30, 2014, respectively.

Depreciation and Amortization Expense: Depreciation and amortization expense was $27.0 million for the three months ended June 30, 2015 compared to $28.3 million for the same period in 2014.Depreciation and amortization expense was $53.3 million for the six months ended June 30, 2015 compared to $56.7 million for the same period in 2014.  The three and six month decreasesin depreciation and amortization expense was due to the disposition of assets, partially offset by 2014 acquisitions.

General and Administrative Expenses:  For the threeand sixmonths ended June 30, 2015, general  and administrative expenses increased $10,000, or 0.5%,  and $93,000, or 2.4%, respectively, over the same periods in 2014.  Including the 2014 LTEIP amortization, for the three and six months ended June 30, 2015, general and administrative expense increased $134,000, or 4.0%, and $1.0 million, or 17.9%, respectively, over the same periods

27

in 2014.  During the first six months of 2014, the Company recognized four months of compensation expense related to the 2014 LTEIP based on the timing of the plan’s implementation, while the first six months of 2015 includes two full quarters of expense.

Gain on Sale of Real Estate Facilities:The Company recorded a combined net gain of $12.5 million related to the sales noted on page 21.

Net Income Allocable to Noncontrolling Interests: Net income allocable to noncontrolling interests reflects the net income allocable to equity interests in the Operating Partnership that are not owned by the Company. Net income allocable to noncontrolling interests was $3.0 millionand $2.7 million of allocated income to common unit holders for the three months ended June 30, 2015 and 2014, respectively. Net income allocable to noncontrolling interests was $8.4 million and $5.4 million of allocated income to common unit holders for the six months ended June 30, 2015and 2014, respectively. The three month increase was primarily the result of a decrease in depreciation of $1.3 million, while the six month increase was due to the gain on sale of real estate facilities of $12.5 million and an increase in NOI from both the Same Park and Non-Same Park portfolios of $7.2 million offset by a decrease in NOI from assets sold.

Liquidity and Capital Resources

Cash and cash equivalents increased $47.7 million from $152.5 million at December 31, 2014 to $200.2 million at June 30, 2015 for the reasons noted below.

Net cash provided by operating activities for the six months ended June 30, 2015 and 2014 was $111.4 million and $116.5 million, respectively. The decrease of $5.1 million in net cash provided by operating activities was primarily due to a decrease in NOI from asset dispositions.  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 $1.2 millionand $23.5 millionfor the six months ended June 30, 2015and 2014, respectively. The change was primarily due to net proceeds of $24.5 million received from the sale of assets in Redmond, Washington and Milwaukie, Oregon, partially offset by an increase in cash paid related to the multi-family development project and an increase in capital improvements.

Net cash used in financing activities was $62.5 million and$62.0 million for the sixmonths ended June 30, 2015 and 2014, respectively.  

The Company hadan outstanding mortgage note payable of $250.0 million at June 30, 2015 and December 31, 2014. See Notes 5 and 6 to the consolidated financial statements for a summary of the Company’s outstanding borrowings as of June 30, 2015.

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 London Interbank Offered Rate (“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 0.925%. 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 0.15%). The Company had no balance outstanding on the Credit Facility at June 30, 2015 and December 31, 2014. The Company had $885,000 and $1.0 million of unamortized commitment fees as of June 30, 2015 and December 31, 2014, respectively. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance with as of June 30, 2015. Interest on outstanding borrowings is payable monthly.

The Company’s preferred equity outstanding increased from 25.1% of its market capitalization at December 31, 2014to 26.8%  December 31, 2014due to a decrease in stock price from $79.54 at December 31, 2014 to $72.15 at

28

June 30, 2015. As of June 30, 2015, the Company had one fixed-rate mortgage note totaling $250.0 million, which represented 6.7% of its total market capitalization. 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 June 30, 2015 multiplied by the closing price of the stock on that date. The interest rate for the mortgage note is 5.45% per annum. The Company had  21.5% of its properties, in terms of net book value, encumbered at June 30, 2015.

The Company focuses on retaining cash for reinvestment, as we believe this provides us the greatest level of financial flexibility. While operating results have been negatively impacted by the slow economic conditions, we believe it is likely that as the economy recovers and operating fundamentals improve, additional increases in distributions to the Company’s common shareholders will be required. The Company will continue to monitor its taxable income and the corresponding dividend requirements.Subsequent to June 30, 2015, the Company increased its quarterly dividend from $0.50 per common share to $0.60 per common share, increasing quarterly distributions by approximately $2.7 million per quarter.

Repurchase of Common Stock:No shares of common stock were repurchased under the board approved common stock repurchase program during the six months ended June 30, 2015 or the year ended December 31, 2014.

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 six months ended June 30, 2015 and 2014, the Company expended $21.4 million and $20.5 million, respectively, in recurring capital expenditures, or $0.76and $0.69per 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 Six Months
	Ended June 30,
	2015		2014
Recurring capital expenditures
Capital improvements	$	3,881	$	3,781
Tenant improvements		13,225		11,538
Lease commissions		4,285		5,144
Total recurring capital expenditures		21,391		20,463
Nonrecurring capital improvements		2,474		1,787
Total capital expenditures	$	23,865	$	22,250

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

	For The Six Months
	Ended June 30,
	2015		2014
Recurring capital expenditures
Capital improvements	$	0.14	$	0.13
Tenant improvements		0.47		0.39
Lease commissions		0.15		0.17
Total recurring capital expenditures		0.76		0.69
Nonrecurring capital improvements		0.09		0.06
Total capital expenditures	$	0.85	$	0.75

29

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. The Company targets a minimum ratio of FFO 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 six months ended June 30, 2015, the FFO to fixed charges and preferred distributions coverage ratio was 3.1 to 1.0, excluding the charge for the issuance costs related to the redemption of preferred equity.

Non-GAAP Supplemental Disclosure Measure: Funds from Operations: Management believes that Funds from Operations (“FFO”) is a useful supplemental measure 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 (“NAREIT”). 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 should be analyzed in conjunction with net income. However, FFO should not be viewed as a substitute for net income as a measure of operating performance or liquidity as it does 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 recognized as the industry standard for reporting operations of REITs. Other REITs may use different methods for calculating FFO and, accordingly, our FFO may not be comparable to other real estate companies.

30

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

	For The Three Months				For The Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Net income allocable to common shareholders	$	11,129	$	9,826	$	30,901	$	19,766
Gain on sale of real estate facilities		—		—		(12,487)		—
Depreciation and amortization		27,025		28,295		53,258		56,736
Net income allocable to noncontrolling interests — common units		3,016		2,669		8,379		5,372
Net income allocable to restricted stock unit holders		42		33		140		69
FFO allocable to common and dilutive shares		41,212		40,823		80,191		81,943
FFO allocated to noncontrolling interests — common units		(8,751)		(8,704)		(17,031)		(17,481)
FFO allocated to restricted stock unit holders		(169)		(67)		(347)		(134)
FFO allocated to common shares	$	32,292	$	32,052	$	62,813	$	64,328
Weighted average common shares outstanding		26,956		26,899		26,941		26,881
Weighted average common Operating Partnership units outstanding		7,305		7,305		7,305		7,305
Weighted average restricted stock units outstanding		110		56		114		56
Weighted average common share equivalents outstanding		77		100		86		100
Total common and dilutive shares		34,448		34,360		34,446		34,342
Net income per common share — diluted	$	0.41	$	0.36	$	1.14	$	0.73
Gain on sale of real estate facilities (1)		—		—		(0.36)		—
Depreciation and amortization (1)		0.79		0.83		1.55		1.66
FFO per common and dilutive shares (1)	$	1.20	$	1.19	$	2.33	$	2.39

____________

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

FFO allocable to common and dilutive shares increased $389,000 for the threemonths ended June 30, 2015 compared to the same period in 2014, but decreased $1.8 million for the six months ended June 30, 2015 compared to the same period in 2014.The three month increase in FFO was primarily the result of a $4.4 million increase in NOI resulting from both the Same Park and Non-Same Park portfolios, partially offset by a decrease in NOI from assets sold. The six month decrease in FFO was due to a decrease in NOI from assets sold partially offset by higher NOI from both the Same Park and Non-Same Park portfolios.

Related Party Transactions:Assuming issuance of the Company’s common stock upon redemption of its partnership units, PS would own 42.2%(or 14.5 million shares) of the outstanding shares of the Company’s common stock at June 30, 2015. Asof June 30, 2015, PS owned 26.5%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 and 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 $117,000 and $108,000 for the three months ended June 30, 2015 and 2014,  respectively and $235,000 and $226,000 for the six months ended June 30, 2015 and 2014, 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 $133,000 and $165,000 for the three months ended June 30, 2015 and 2014, respectively and $280,000 and $331,000 for the six months ended June 30, 2015 and 2014, respectively. PS also provides property management services for the self-storage component of two assets owned by

31

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 $19,000 and $17,000 for the three months ended June 30, 2015 and 2014, respectively and $38,000 and $33,000 for the six months ended June 30, 2015 and 2014, 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.

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 $60.5 million per year on its preferred equity outstanding as of June 30, 2015. Dividends are paid when and if declared by the Company’s Board of Directors and accumulate if not paid. Shares and units 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 13.0% as of June 30, 2015.

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, 5 and 6 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 June 30, 2015. 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 June 30, 2015, 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 June 30, 2015 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

32

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The Company currently is neither subject to any 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.

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, 2014.

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 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 June 30, 2015, there were no shares of the Company’s common stock repurchased. As of June 30, 2015, 1,614,721 shares remain available for purchase under the program.

See Note 9 to the consolidated financial statements for additional information on repurchases of equity securities.

33

ITEM 6. EXHIBITS

Exhibits
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.

34

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: August3, 2015

PS BUSINESS PARKS, INC.

BY:/s/ Edward A. Stokx

Edward A. Stokx

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

35

EXHIBIT INDEX

Exhibits
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.

36

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 Six Months
			Ended June 30,				Ended June 30,
			2015		2014		2015		2014
Net income			$	29,309	$	27,650	$	69,664	$	55,451
Interest expense				3,327		3,370		6,625		6,723
Earnings available to cover fixed charges			$	32,636	$	31,020	$	76,289	$	62,174
Fixed charges (1)			$	3,597	$	3,602	$	7,155	$	7,180
Preferred stock dividends				15,122		15,122		30,244		30,244
Combined fixed charges and preferred distributions			$	18,719	$	18,724	$	37,399	$	37,424
Ratio of earnings to fixed charges				9.1		8.6		10.7		8.7
Ratio of earnings to combined
fixed charges and preferred distributions				1.7		1.7		2.0		1.7
	For the Years Ended December 31,
	2014		2013		2012		2011		2010
Income from continuing operations	$	204,700	$	116,144	$	94,395	$	99,563	$	96,394
Interest expense		13,509		16,074		20,618		5,455		3,534
Earnings from continuing operations available to
cover fixed charges	$	218,209	$	132,218	$	115,013	$	105,018	$	99,928
Fixed charges (1)	$	14,453	$	16,433	$	20,618	$	5,455	$	3,534
Preferred stock dividends		60,488		59,216		69,136		41,799		46,214
Preferred partnership distributions		—		—		323		(6,991)		5,103
Combined fixed charges and preferred distributions	$	74,941	$	75,649	$	90,077	$	40,263	$	54,851
Ratio of earnings from continuing operations to
fixed charges		15.1		8.0		5.6		19.3		28.3
Ratio of earnings from continuing operations to combined
fixed charges and preferred distributions		2.9		1.7		1.3		2.6		1.8

____________

(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 Six Months
			Ended June 30,				Ended June 30,
			2015		2014		2015		2014
FFO			$	41,212	$	40,823	$	80,191	$	81,943
Interest expense				3,327		3,370		6,625		6,723
Preferred stock dividends				15,122		15,122		30,244		30,244
FFO available to cover fixed charges			$	59,661	$	59,315	$	117,060	$	118,910
Fixed charges (1)			$	3,597	$	3,602	$	7,155	$	7,180
Preferred stock dividends (2)				15,122		15,122		30,244		30,244
Combined fixed charges and preferred distributions paid			$	18,719	$	18,724	$	37,399	$	37,424
Ratio of available FFO to fixed charges				16.6		16.5		16.4		16.6
Ratio of available FFO to combined fixed charges and
preferred distributions paid				3.2		3.2		3.1		3.2
	For the Years Ended December 31,
	2014		2013		2012		2011		2010
FFO	$	162,196	$	165,845	$	134,472	$	149,797	$	124,420
Interest expense		13,509		16,074		20,618		5,455		3,534
Net income allocable to noncontrolling interests —
preferred units		—		—		323		(6,991)		5,103
Preferred stock dividends		60,488		59,216		69,136		41,799		46,214
FFO available to cover fixed charges	$	236,193	$	241,135	$	224,549	$	190,060	$	179,271
Fixed charges (1)	$	14,453	$	16,433	$	20,618	$	5,455	$	3,534
Preferred stock dividends (2)		60,488		59,216		51,969		41,799		42,730
Preferred partnership distributions (2)		—		—		174		398		4,521
Combined fixed charges and preferred distributions paid	$	74,941	$	75,649	$	72,761	$	47,652	$	50,785
Ratio of available FFO to fixed charges		16.3		14.7		10.9		34.8		50.7
Ratio of available FFO to combined fixed charges and
preferred distributions paid		3.2		3.2		3.1		4.0		3.5

____________

(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, Joseph D. Russell, Jr., 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/ Joseph D. Russell, Jr.

Name: Joseph D. Russell, Jr.

Title: Chief Executive Officer

Date: August 3, 2015

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: August 3, 2015

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 June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Joseph D. Russell Jr., 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/ Joseph D. Russell, Jr.

Name: Joseph D. Russell, Jr.

Title: Chief Executive Officer

Date: August 3, 2015

/s/ Edward A. Stokx

Name: Edward A. Stokx

Title: Chief Financial Officer

Date: August 3, 2015

XML

Stock Compensation (Summary Of Stock Options Activity) (Details) - Jun. 30, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total
Stock Compensation [Abstract]
Number of Options, Outstanding	341,852
Number of Options, Granted	16,000
Number of Options, Exercised	(39,500)
Number of Options, Outstanding	318,352
Number of Options, Exercisable at June 30, 2015	252,606
Weighted Average Exercise Price, Outstanding	$ 57.11
Weighted Average Exercise Price, Granted	80.13
Weighted Average Exercise Price, Exercised	50.63
Weighted Average Exercise Price, Outstanding	59.07
Weighted Average Exercise Price, Exercisable at June 30, 2015	$ 55.04
Weighted Average Remaining Contract Life, Outstanding at June 30, 2015	5 years 3 months 18 days
Weighted Average Remaining Contract Life, Exercisable at June 30, 2015	4 years 6 months 18 days
Aggregate Intrinsic Value, Outstanding at June 30, 2015	$ 4,564
Aggregate Intrinsic Value, Exercisable at June 30, 2015	$ 4,396

XML

Noncontrolling Interests (Narrative) (Details) - Jun. 30, 2015 - shares	Total
Noncontrolling Interests [Abstract]
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
Common units owned by affiliate	7,305,355
Affiliate's percent ownership of the Company's common equity	42.20%
Shares owned by Public Storage	14,500,000

XML

Summary Of Significant Accounting Policies (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2015 USD ($) segment shares	Jun. 30, 2014 USD ($) shares	Dec. 31, 2014 USD ($)
Property, Plant and Equipment [Line Items]
Allowance for uncollectible accounts	$ 400,000		$ 400,000		$ 400,000
Allowance for uncollectable deferred rent receivables	877,000		$ 877,000		841,000
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	352,000	$ 244,000	$ 663,000	$ 441,000
Value of in-place leases resulting in a net intangible asset	2,000,000		2,000,000		2,500,000
Accumulated amortization - intangible assets	8,300,000		$ 8,300,000		7,800,000
Intangible assets, weighted average amortization period (in years)			8 years 4 months 24 days
Value of in-place leases resulting in a net intangible liability	2,700,000		$ 2,700,000		3,900,000
Accumulated amortization - intangible liabilities	$ 8,100,000		$ 8,100,000		$ 6,900,000
Intangible liability, weighted average amortization period (in years)			4 years 9 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	46,000	16,000	32,000	14,000
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

XML

Shareholders' Equity (Schedule Of Preferred Stock Outstanding) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Shares Outstanding	39,800	39,800
Amount	$ 995,000	$ 995,000
Series R [Member]
Class of Stock [Line Items]
Issuance Date	Oct. 01, 2010	Oct. 01, 2010
Earliest Potential Redemption Date	Oct. 01, 2015	Oct. 01, 2015
Dividend Rate	6.875%	6.875%
Shares Outstanding	3,000	3,000
Amount	$ 75,000	$ 75,000
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

XML

Real Estate Facilities

6 Months Ended

Jun. 30, 2015

Real Estate Facilities [Abstract]

Real Estate Facilities

3. Real estate facilities

The activity in real estate facilities for the six months ended June 30, 2015 is as follows (in thousands):

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2014	$	793,569	$	2,182,993	$	(991,497)	$	1,985,065
Capital expenditures, net		—		25,685		—		25,685
Disposals		—		(8,254)		8,254		—
Depreciation and amortization		—		—		(53,258)		(53,258)
Transfer to properties held for disposition		—		(330)		478		148
Balances at June 30, 2015	$	793,569	$	2,200,094	$	(1,036,023)	$	1,957,640

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 February 27, 2015, as part of an eminent domain process with the Central Puget Sound Regional Transit Authority, the Company sold five buildings, aggregating 82,000 square feet, at the Company’s Overlake Business Park located in Redmond, Washington, for $13.9 million, which resulted in a net gain of $4.8 million.

On February 13, 2015, the Company completed the sale of Milwaukie Business Park located in Milwaukie, Oregon, for net proceeds of $10.6 million, which resulted in a net gain of $7.6 million. The park consists of six multi-tenant flex buildings aggregating 102,000 square feet.

The five buildings at the Company’s Overlake Business Park, Milwaukie Business Park, as well as a 23,000 square foot building in Tempe, Arizona, and two business parks aggregating 367,000 square feet in Sacramento, California, have been classified as properties held for disposition as of December 31, 2014, while the 23,000 square foot building in Tempe, Arizona and the two business parks aggregating 367,000 square feet in Sacramento, California, continued to be classified as property held for disposition as of June 30, 2015.  

Subsequent to June 30, 2015, the Company completed the sale of the two business parks located in Sacramento, California, noted above, for net proceeds of $29.3 million.

The Company has a 125,000 square foot building located in Northern Virginia classified as land and building held for development.The Company has entered into a joint venture, in which it will maintain a 95.0% economic interest, with a real estate development company to pursue a ground-up multi-family development on thesite. Prior to the property being contributed, all costs related to the pre-development are split evenly between the Company and its joint venture partner. As of June 30, 2015, the Company has received all required entitlements, allowing it to develop a multi-family building up to 450,000 square feet on the property. The property will be contributed to the joint venture upon commencement of construction, which is anticipated to occur in late 2015 or early 2016. The land and capitalized development costs were $20.2 million and $18.4 million at June 30, 2015 and December 31, 2014, respectively. For the six months ended June 30, 2015, the Company capitalized costs of $1.8 million related to this development, of which $531,000were capitalized interest costs.

XML

Leasing Activity (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Tenant reimbursements	$ 19.9	$ 19.8	$ 40.0	$ 40.8
Percentage of leased asset subjected to termination options	4.20%		4.20%
Percentage of leased asset exercisable in period	1.10%		1.10%
Maximum [Member]
Non-cancelable leases term (in years)			10 years
Minimum [Member]
Non-cancelable leases term (in years)			1 year

XML

Real Estate Facilities (Activity In Real Estate Facilities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Line Items]
Balances			$ 1,985,065
Capital expenditures, net			25,685
Depreciation and amortization	$ (27,025)	$ (28,295)	(53,258)	$ (56,736)
Transfer to properties held for disposition			148
Balances	1,957,640		1,957,640
Land [Member]
Property, Plant and Equipment [Line Items]
Balances			793,569
Balances	793,569		793,569
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Balances			2,182,993
Capital expenditures, net			25,685
Disposals			(8,254)
Transfer to properties held for disposition			(330)
Balances	2,200,094		2,200,094
Accumulated Depreciation [Member]
Property, Plant and Equipment [Line Items]
Balances			(991,497)
Disposals			8,254
Depreciation and amortization			(53,258)
Transfer to properties held for disposition			478
Balances	$ (1,036,023)		$ (1,036,023)

XML

Leasing Activity (Summary Of Future Minimum Rental Revenues Excluding Recovery Of Operating Expenses) (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Leasing Activity [Abstract]
2015	$ 136,970
2016	228,471
2017	168,971
2018	119,817
2019	80,736
Thereafter	137,622
Total	$ 872,587

XML

Bank Loans (Details) - Wells Fargo Credit Facility [Member] - USD ($)	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
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	0.925%
Credit Facility, percentage of commitment fees	0.15%
Credit Facility, amount outstanding	$ 0	$ 0
Unamortized commitments fees	$ 885,000	$ 1,000,000
Maximum [Member]
Line of Credit Facility [Line Items]
Spread over LIBOR	1.70%
Credit Facility, percentage of commitment fees	0.30%
Minimum [Member]
Line of Credit Facility [Line Items]
Spread over LIBOR	0.875%
Credit Facility, percentage of commitment fees	0.125%

XML

Summary Of Significant Accounting Policies

6 Months Ended

Jun. 30, 2015

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 thethree andsix months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the year ended December 31, 2015. 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, 2014.  

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.

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, which represents the cumulative allowances less write-offs of uncollectible rent, 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 June 30, 2015 and December 31, 2014. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $877,000 and $841,000 at June 30, 2015 and December 31, 2014, 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, in excess of $1,000 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 and building held for 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 June 30, 2015, the value of in-place leases resulted in net intangible assets of $2.0 million, net of $8.3 million of accumulated amortization with a weighted average amortization period of 8.4 years, and net intangible liabilities of $2.7 million, net of $8.1 million of accumulated amortization with a weighted average amortization period of 4.8 years. As of December 31, 2014, the value of in-place leases resulted in net intangible assets of $2.5 million, net of $7.8 million of accumulated amortization and net intangible liabilities of $3.9 million, net of $6.9 million of accumulated amortization.

The Company recorded net increases in rental income of $352,000 and $244,000 for the three months ended June 30, 2015 and 2014, respectively, and $663,000 and $441,000 for the six months ended June 30, 2015 and 2014, 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 June 30, 2015, 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 11.

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 2014 and intends to continue to meet such requirements for 2015. 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 June 30, 2015, 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 or units of its intent to redeem such shares or units.

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 Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Net income allocable to common shareholders	$	11,129	$	9,826	$	30,901	$	19,766
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		26,956		26,899		26,941		26,881
Net effect of dilutive stock compensation — based on
treasury stock method using average market price		77		100		86		100
Diluted weighted average common shares outstanding		27,033		26,999		27,027		26,981
Net income per common share — Basic	$	0.41	$	0.37	$	1.15	$	0.74
Net income per common share — Diluted	$	0.41	$	0.36	$	1.14	$	0.73

Options to purchase 46,000 and 16,000 shares for the three months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because such options were considered anti-dilutive. Options to purchase 32,000 and 14,000 shares for the six months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because 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 2014 in order to conform to the 2015 presentation.

Recently issued accounting standards

In May, 2014, the FASB issued new accounting guidance 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 permittedfor the Company’s fiscal year beginning January 1, 2017. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of 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.

XML

Mortgage Note Payable (Details) $ in Thousands, ft² in Millions	6 Months Ended
	Jun. 30, 2015 USD ($) ft² item	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Mortgage notes payable, carrying amount	$ 250,000	$ 250,000
5.45% Mortgage Note [Member]
Debt Instrument [Line Items]
Number of mortgage notes payable | item	1
Interest rate	5.45%
Secured by square feet of real estate facilities | ft²	4.8
Net book value of secured property	$ 423,200
Mortgage note, frequency of interest payment	monthly
Mortgage note due date	Dec. 01, 2016

XML

Stock Compensation (Nonvested Restricted Stock Units) (Details) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Stock Compensation [Abstract]
Number of Units, Nonvested	35,170
Number of Units, Granted	66,506	0
Number of Units, Vested	(21,184)
Number of Units, Forfeited	(4,120)
Number of Units, Nonvested	76,372
Weighted Average Grant Date Fair Value, Nonvested	$ 65.62
Weighted Average Grant Date Fair Value, Granted	83.47
Weighted Average Grant Date Fair Value, Vested	76.73
Weighted Average Grant Date Fair Value, Forfeited	74.25
Weighted Average Grant Date Fair Value, Nonvested	$ 77.61

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 200,194	$ 152,467
Real estate facilities, at cost:
Land	793,569	793,569
Buildings and improvements	2,200,094	2,182,993
Gross real estate investment property	2,993,663	2,976,562
Accumulated depreciation	(1,036,023)	(991,497)
Net real estate investment property	1,957,640	1,985,065
Properties held for disposition, net	14,267	25,937
Land and building held for development	26,288	24,442
Total real estate investments	1,998,195	2,035,444
Rent receivable, net	4,538	2,838
Deferred rent receivable, net	28,199	26,050
Other assets	8,493	10,315
Total assets	2,239,619	2,227,114
LIABILITIES AND EQUITY
Accrued and other liabilities	70,014	68,905
Mortgage note payable	250,000	250,000
Total liabilities	$ 320,014	$ 318,905
Commitments and contingencies
PS Business Parks, Inc.'s shareholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, 39,800 shares issued and outstanding at June 30, 2015 and December 31, 2014	$ 995,000	$ 995,000
Common stock, $0.01 par value, 100,000,000 shares authorized, 26,971,885 and 26,919,161 shares issued and outstanding at June 30, 2015 and December 31, 2014 respectively	268	268
Paid-in capital	714,182	709,008
Cumulative net income	1,306,231	1,244,946
Cumulative distributions	(1,293,133)	(1,235,941)
Total PS Business Parks, Inc.'s shareholders' equity	1,722,548	1,713,281
Noncontrolling interests:
Common units	197,057	194,928
Total noncontrolling interests	197,057	194,928
Total equity	1,919,605	1,908,209
Total liabilities and equity	$ 2,239,619	$ 2,227,114

XML

Consolidated Statements Of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 69,664,000	$ 55,451,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	53,258,000	56,736,000
In-place lease adjustment	(663,000)	(441,000)
Tenant improvement reimbursements net of lease incentives	(940,000)	(839,000)
Gain on sale of real estate facilities	(12,487,000)
Stock compensation	5,037,000	3,898,000
Decrease (increase) in receivables and other assets	(2,954,000)	4,664,000
Increase (decrease) in accrued and other liabilities	530,000	(2,959,000)
Total adjustments	41,781,000	61,059,000
Net cash provided by operating activities	111,445,000	116,510,000
Cash flows from investing activities:
Capital expenditures to real estate facilities	(23,865,000)	(22,250,000)
Capital expenditures to land and building held for development	(1,846,000)	(1,219,000)
Proceeds from sale of real estate facilities	24,490,000
Net cash used in investing activities	(1,221,000)	(23,469,000)
Cash flows from financing activities:
Proceeds from the exercise of stock options	2,000,000	2,443,000
Distributions paid to preferred shareholders	(30,244,000)	(30,244,000)
Distributions paid to noncontrolling interests — common units	(7,305,000)	(7,305,000)
Distributions paid to common shareholders	(26,948,000)	(26,893,000)
Net cash used in financing activities	(62,497,000)	(61,999,000)
Net increase in cash and cash equivalents	47,727,000	31,042,000
Cash and cash equivalents at the beginning of the period	152,467,000	31,481,000
Cash and cash equivalents at the end of the period	200,194,000	62,523,000
Adjustment to noncontrolling interests in underlying operating partnership:
Noncontrolling interests - common units	1,055,000	984,000
Paid-in capital	$ (1,055,000)	$ (984,000)

XML

Shareholders' Equity (Narrative) (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($) $ / shares	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item $ / shares	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Shareholders' Equity [Abstract]
Distributions recorded to preferred shareholders	$ 15,100,000	$ 15,100,000	$ 30,244,000	$ 30,244,000
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			$ 31,800,000		$ 31,800,000

XML

Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Shareholders' Equity [Abstract]

Schedule Of Preferred Stock Outstanding

		Earliest Potential	Dividend	Shares	Amount
Series	Issuance Date	Redemption Date	Rate	Outstanding	(in thousands)
Series R	October, 2010	October, 2015	6.875%	3,000	$	75,000
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				39,800	$	995,000

XML

Shareholders' Equity (Common And Equity Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Shareholders' Equity [Abstract]
Aggregate number of common stock repurchased in the period			0	0
Distributions paid to common shareholders	$ 13,500	$ 13,500	$ 26,948	$ 26,893
Dividends declared per common share	$ 0.50	$ 0.50	$ 1.00	$ 1.00
Equity stock, shares authorized	100,000,000		100,000,000

XML

Organization And Description Of Business (Details) - Jun. 30, 2015 shares in Millions	ft² state shares
Organization And Description Of Business [Abstract]
The Company's ownership percentage of the limited partnership	77.80%
Affiliate's percent ownership of the Company's common equity	42.20%
Shares owned by Public Storage | shares	14.5
Owned and operated properties (in rentable square feet)	28,400,000
Number of states with rentable commercial space | state	6
Managed properties (in rentable square feet)	838,000

XML

Organization And Description Of Business

6 Months Ended

Jun. 30, 2015

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 June 30, 2015, PSB owned 77.8% of 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 partnership units, PS would own 42.2% (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 June 30, 2015, the Company owned and operated 28.4 million rentable square feet of commercial space concentrated primarily in six states. The Company also manages 838,000 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

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
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	39,800	39,800
Preferred stock, shares outstanding	39,800	39,800
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	26,971,885	26,919,161
Common stock, shares outstanding	26,971,885	26,919,161

XML

Stock Compensation

6 Months Ended

Jun. 30, 2015

Stock Compensation [Abstract]

Stock Compensation

11. 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 six months ended June 30, 2015 and 2014 was $8.49 per share and $10.95 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 six months ended June 30, 2015 and 2014, respectively: a dividend yield of 2.5% and 2.3% expected volatility of 16.1% and 17.7%; expected life of five years; and risk-free interest rates of 1.4% and 1.7%.

The weighted average grant date fair value of restricted stock units granted during the six months ended June 30, 2015 was $83.47. The Company calculated the fair value of each restricted stock unit grant using the market value on the date of grant. No restricted stock units were granted for the six months ended June 30, 2014.

At June 30, 2015, there was a combined total of 842,000 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, 2014	341,852	$	57.11
Granted	16,000	$	80.13
Exercised	(39,500)	$	50.63
Forfeited	—	$	—
Outstanding at June 30, 2015	318,352	$	59.07	5.30 Years	$	4,564
Exercisable at June 30, 2015	252,606	$	55.04	4.55 Years	$	4,396

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2014	35,170	$	65.62
Granted	66,506	$	83.47
Vested	(21,184)	$	76.73
Forfeited	(4,120)	$	74.25
Nonvested at June 30, 2015	76,372	$	77.61

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 (“2014 LTEIP”), with certain employees of the Company. Under the 2014 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 2014 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 shares allocated to be awarded for such year are added to the shares that may be received if the four-year target is achieved. All restricted stock unit awards under the 2014 LTEIP vest in four equal annual installments beginning from the date of award. Up to 98,600 restricted stock units would be granted for each of the four years assuming achievement was met and up to 84,514 restricted stock units would be granted for the cumulative four-year period assuming achievement was met. Compensation expense is recognized based on the shares expected to be awarded based on the target level that is expected to be achieved. Net compensation expense of $2.4 million related to the 2014 LTEIP was recognized during each of the three months ended June 30, 2015 and 2014 and $4.5 million and $3.2 million for the six months ended June 30, 2015 and 2014, respectively.  

The 2014 LTEIP targets for 2014 were achieved at the threshold total return level. As such, 66,506 restricted stock units were granted during the six months ended June 30, 2015 at a weighted average grant date fair value of $83.47.

Included in the Company’s consolidated statements of income for the three months ended June 30, 2015 and 2014, was $49,000 and $108,000, respectively, in net compensation expense related to stock options. Net compensation expense of $177,000 and $230,000 related to stock options was recognized during the six months ended June 30, 2015 and 2014, respectively. Excluding the 2014 LTEIP amortization of $2.4 million for each period, net compensation expense of $84,000 and $108,000 related to restricted stock units was recognized during the three months ended June 30, 2015 and 2014, respectively. Excluding the 2014 LTEIPamortization of $4.5 million and $3.2 million, respectively, net compensation expense of $192,000 and $284,000 related to restricted stock units was recognized during the six months ended June 30, 2015 and 2014, respectively.

As of June 30, 2015, there was $496,000 of unamortized compensation expense related to stock options expected to be recognized over a weighted average period of 3.4 years. As of June 30, 2015, there was $24.3 million (includes $23.0 million from the 2014 LTEIP) of unamortized compensation expense related to restricted stock units expected to be recognized over a weighted average period of 4.7 years.

Cash received from 39,500 stock options exercised during the six months ended June 30, 2015 was $2.0 million. Cash received from 49,273 stock options exercised during the six months ended June 30, 2014 was $2.4 million. The aggregate intrinsic value of the stock options exercised was $1.0million and $1.7 million during the six months ended June 30, 2015 and 2014, respectively.

During the six months ended June 30, 2015,  21,184 restricted stock units vested (16,634 related to the 2014 LTEIP); in settlement of these units, 13,224 shares were issued (10,495 related to the 2014 LTEIP), net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the six months ended June 30, 2015 was $1.7 million ($1.3 million related to the 2014 LTEIP). During the six months ended June 30, 2014,  8,430 restricted stock units vested; in settlement of these units, 5,341 shares were issued, net of shares applied to payroll taxes. The aggregate fair value of the shares vested for the six months ended June 30, 2014 was $708,000.

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 $79,000 and $77,000 in compensation expense for the three months ended June 30, 2015 and 2014, respectively and $158,000 and $153,000 for the six months ended June 30, 2015 and 2014, respectively. As of June 30, 2015 and 2014, there was $1.4 million and $1.3 million, respectively, of unamortized compensation expense related to these shares. No shares were issued during the six months ended June 30, 2015 and 2014.

XML

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 27, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
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		26,971,885

XML

Summary Of Significant Accounting Policies (Policy)

6 Months Ended

Jun. 30, 2015

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 thethree andsix months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the year ended December 31, 2015. 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, 2014.  

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.

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, which represents the cumulative allowances less write-offs of uncollectible rent, 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 June 30, 2015 and December 31, 2014. Deferred rent receivable is net of an allowance for uncollectible accounts totaling $877,000 and $841,000 at June 30, 2015 and December 31, 2014, 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, in excess of $1,000 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 And Building Held For Development

Land and building held for 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 June 30, 2015, the value of in-place leases resulted in net intangible assets of $2.0 million, net of $8.3 million of accumulated amortization with a weighted average amortization period of 8.4 years, and net intangible liabilities of $2.7 million, net of $8.1 million of accumulated amortization with a weighted average amortization period of 4.8 years. As of December 31, 2014, the value of in-place leases resulted in net intangible assets of $2.5 million, net of $7.8 million of accumulated amortization and net intangible liabilities of $3.9 million, net of $6.9 million of accumulated amortization.

The Company recorded net increases in rental income of $352,000 and $244,000 for the three months ended June 30, 2015 and 2014, respectively, and $663,000 and $441,000 for the six months ended June 30, 2015 and 2014, 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 June 30, 2015, 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 11.

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 2014 and intends to continue to meet such requirements for 2015. 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 June 30, 2015, 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 or units of its intent to redeem such shares or units.

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 Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Net income allocable to common shareholders	$	11,129	$	9,826	$	30,901	$	19,766
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		26,956		26,899		26,941		26,881
Net effect of dilutive stock compensation — based on
treasury stock method using average market price		77		100		86		100
Diluted weighted average common shares outstanding		27,033		26,999		27,027		26,981
Net income per common share — Basic	$	0.41	$	0.37	$	1.15	$	0.74
Net income per common share — Diluted	$	0.41	$	0.36	$	1.14	$	0.73

Options to purchase 46,000 and 16,000 shares for the three months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because such options were considered anti-dilutive. Options to purchase 32,000 and 14,000 shares for the six months ended June 30, 2015 and 2014, respectively, were not included in the computation of diluted net income per share because 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 2014 in order to conform to the 2015 presentation.

Recently Issued Accounting Standards

Recently issued accounting standards

In May, 2014, the FASB issued new accounting guidance 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 permittedfor the Company’s fiscal year beginning January 1, 2017. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of 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.

XML

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Rental income	$ 92,948	$ 93,986	$ 185,263	$ 189,307
Facility management fees	133	165	280	331
Total operating revenues	93,081	94,151	185,543	189,638
Expenses:
Cost of operations	30,057	31,535	61,803	64,979
Depreciation and amortization	27,025	28,295	53,258	56,736
General and administrative	3,497	3,363	6,896	5,850
Total operating expenses	60,579	63,193	121,957	127,565
Other income and (expense):
Interest and other income	145	95	252	157
Interest and other expense	(3,338)	(3,403)	(6,661)	(6,779)
Total other income and (expense)	(3,193)	(3,308)	(6,409)	(6,622)
Gain on sale of real estate facilities			12,487
Net income	29,309	27,650	69,664	55,451
Net income allocable to noncontrolling interests:
Noncontrolling interests - common units	3,016	2,669	8,379	5,372
Total net income allocable to noncontrolling interests	3,016	2,669	8,379	5,372
Net income allocable to PS Business Parks, Inc.:
Preferred shareholders	15,122	15,122	30,244	30,244
Restricted stock unit holders	42	33	140	69
Common shareholders	11,129	9,826	30,901	19,766
Total net income allocable to PS Business Parks, Inc.	26,293	24,981	61,285	50,079
Net income	$ 29,309	$ 27,650	$ 69,664	$ 55,451
Net income per common share:
Basic	$ 0.41	$ 0.37	$ 1.15	$ 0.74
Diluted	$ 0.41	$ 0.36	$ 1.14	$ 0.73
Weighted average common shares outstanding:
Basic	26,956	26,899	26,941	26,881
Diluted	27,033	26,999	27,027	26,981
Dividends declared per common share	$ 0.50	$ 0.50	$ 1.00	$ 1.00

XML

Mortgage Note Payable

6 Months Ended

Jun. 30, 2015

Mortgage Note Payable [Abstract]

Mortgage Note Payable

6. Mortgage note payable

The Company has one mortgage note payable with a fixed interest rate of 5.45%, secured by 4.8 million square feet of commercial properties with a net book value of $423.2 million. The interest is payable monthly, and the mortgage note payable has a maturity date of December, 2016. The Company had $250.0 million outstanding on the mortgage note payable as of June 30, 2015 and December 31, 2014.  

XML

Bank Loans

6 Months Ended

Jun. 30, 2015

Bank Loans [Abstract]

Bank Loans

5. 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 London Interbank Offered Rate(“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 0.925%. 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 0.15%). The Company had no balance outstanding on the Credit Facilityat June 30, 2015 and December 31, 2014. The Company had $885,000and $1.0 million of unamortized commitment fees as of June 30, 2015 and December 31, 2014, respectively. The Credit Facility requires the Company to meet certain covenants, all of which the Company was in compliance with as of June 30, 2015. Interest on outstanding borrowings is payable monthly.  

XML

Stock Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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, 2014	341,852	$	57.11
Granted	16,000	$	80.13
Exercised	(39,500)	$	50.63
Forfeited	—	$	—
Outstanding at June 30, 2015	318,352	$	59.07	5.30 Years	$	4,564
Exercisable at June 30, 2015	252,606	$	55.04	4.55 Years	$	4,396

Nonvested Restricted Stock Units

		Weighted
	Number of	Average Grant
Restricted Stock Units:	Units	Date Fair Value
Nonvested at December 31, 2014	35,170	$	65.62
Granted	66,506	$	83.47
Vested	(21,184)	$	76.73
Forfeited	(4,120)	$	74.25
Nonvested at June 30, 2015	76,372	$	77.61

XML

Summary Of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2015

Summary Of Significant Accounting Policies [Abstract]

Calculation Of Earnings Per Share

	For The Three Months				For The Six Months
	Ended June 30,				Ended June 30,
	2015		2014		2015		2014
Net income allocable to common shareholders	$	11,129	$	9,826	$	30,901	$	19,766
Weighted average common shares outstanding:
Basic weighted average common shares outstanding		26,956		26,899		26,941		26,881
Net effect of dilutive stock compensation — based on
treasury stock method using average market price		77		100		86		100
Diluted weighted average common shares outstanding		27,033		26,999		27,027		26,981
Net income per common share — Basic	$	0.41	$	0.37	$	1.15	$	0.74
Net income per common share — Diluted	$	0.41	$	0.36	$	1.14	$	0.73

XML

Shareholders' Equity

6 Months Ended

Jun. 30, 2015

Shareholders' Equity [Abstract]

Shareholders' Equity

9. Shareholders’ equity

Preferred stock

As of June 30, 2015 and December 31, 2014, 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 R	October, 2010	October, 2015	6.875%	3,000	$	75,000
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				39,800	$	995,000

The Company paid $15.1 million and $30.2 million in distributions to its preferred shareholders for each of the threeand sixmonths ended June 30, 2015 and 2014, 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 June 30, 2015, 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 $31.8 million of deferred costs in connection with the issuance of preferred stock as of June 30, 2015 and December 31, 2014, 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 six months ended June 30, 2015 and 2014.

The Company paid $13.5 million ($0.50 per common share) and $26.9 million ($1.00 per common share) in distributions to its common shareholders for each of the threeand six months ended June 30, 2015 and 2014,  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.

XML

Noncontrolling Interests

6 Months Ended

Jun. 30, 2015

Noncontrolling Interests [Abstract]

Noncontrolling Interests

7. 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 June 30, 2015, 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 42.2% (or 14.5 million shares) of the Company’s common equity.

XML

Related Party Transactions

6 Months Ended

Jun. 30, 2015

Related Party Transactions [Abstract]

Related Party Transactions

8. 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 $133,000 and $165,000 for the three months ended June 30, 2015 and 2014, respectively and $280,000 and $331,000 for the six months ended June 30, 2015 and 2014, 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 $19,000 and $17,000 for the three months ended June 30, 2015 and 2014, respectively, and $38,000 and $33,000 for the six months ended June 30, 2015 and 2014, 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 $117,000 and $118,000 for the three months ended June 30, 2015 and 2014, respectively, and $235,000 and $226,000 for the six months ended June 30, 2015 and 2014, respectively.

The Company had net amounts due to PS of $101,000 atJune 30, 2015 and due from PS of $166,000December 31, 2014, respectively, for these contracts, as well as for certain operating expenses paid by the Company on behalf of PS.

XML

Commitments And Contingencies

6 Months Ended

Jun. 30, 2015

Commitments And Contingencies [Abstract]

Commitments And Contingencies

10. 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.

XML

Related Party Transactions (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Dec. 31, 2014 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	$ 133,000	$ 165,000	$ 280,000	$ 331,000
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	$ 19,000	17,000	$ 38,000	33,000
Administrative services costs	117,000	$ 118,000	235,000	$ 226,000
Due from related parties					$ 166,000
Due to related parties	$ 101,000		$ 101,000

XML

Leasing Activity (Tables)

6 Months Ended

Jun. 30, 2015

Leasing Activity [Abstract]

Summary Of Future Minimum Rental Revenues Excluding Recovery Of Operating Expenses

2015	$	136,970
2016		228,471
2017		168,971
2018		119,817
2019		80,736
Thereafter		137,622
Total	$	872,587

XML

Summary Of Significant Accounting Policies (Calculation Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Summary Of Significant Accounting Policies [Abstract]
Net income allocable to common shareholders	$ 11,129	$ 9,826	$ 30,901	$ 19,766
Basic weighted average common shares outstanding	26,956	26,899	26,941	26,881
Net effect of dilutive stock compensation - based on treasury stock method using average market price	77	100	86	100
Diluted weighted average common shares outstanding	27,033	26,999	27,027	26,981
Net income per common share - Basic	$ 0.41	$ 0.37	$ 1.15	$ 0.74
Net income per common share - Diluted	$ 0.41	$ 0.36	$ 1.14	$ 0.73

XML

Consolidated Statement Of Equity - 6 months ended Jun. 30, 2015 - 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, 2014	$ 995,000	$ 268	$ 709,008	$ 1,244,946	$ (1,235,941)	$ 1,713,281	$ 194,928	$ 1,908,209
Balances, shares at Dec. 31, 2014	39,800	26,919,161
Exercise of stock options, value			2,000			2,000		$ 2,000
Exercise of stock options, shares		39,500						39,500
Stock compensation, net, value			4,229			4,229		$ 4,229
Stock compensation, net, shares		13,224
Net income				61,285		61,285	8,379	69,664
Distributions:
Preferred stock					(30,244)	(30,244)		(30,244)
Common stock					(26,948)	(26,948)		(26,948)
Noncontrolling interests							(7,305)	(7,305)
Adjustment to noncontrolling interests in underlying operating partnership			(1,055)			(1,055)	1,055
Balances, value at Jun. 30, 2015	$ 995,000	$ 268	$ 714,182	$ 1,306,231	$ (1,293,133)	$ 1,722,548	$ 197,057	$ 1,919,605
Balances, shares at Jun. 30, 2015	39,800	26,971,885

XML

Leasing Activity

6 Months Ended

Jun. 30, 2015

Leasing Activity [Abstract]

Leasing Activity

4. 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 June 30, 2015(in thousands):

2015	$	136,970
2016		228,471
2017		168,971
2018		119,817
2019		80,736
Thereafter		137,622
Total	$	872,587

In addition to minimum rental payments, certain tenants reimburse the Company for their pro rata share of specified operating expenses. Such reimbursements amounted to $19.9 million and $19.8 million for the three months ended June 30, 2015 and 2014, respectively, and $40.0 million and $40.8 million for the six months ended June 30, 2015 and 2014, respectively. These amounts are included as rental income in the accompanying consolidated statements of income.

Leases accounting for 4.2% of total leased square footage are subject to termination options, of which 1.1% of total leased square footage have termination options exercisable through December 31, 2015 (unaudited). 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.

XML

Real Estate Facilities (Narrative) (Details)			6 Months Ended
	Feb. 27, 2015 USD ($) ft² item	Feb. 13, 2015 USD ($) ft² item	Jun. 30, 2015 USD ($) ft² item	Dec. 31, 2014 USD ($) ft² item
Real Estate Facilities [Line Items]
Land and building held for development			$ 26,288,000	$ 24,442,000
Northern Virginia Redeveloped Land [Member]
Real Estate Facilities [Line Items]
Area of redevelopment of real estate property | ft²			125,000
Economic interest in joint venture, percentage			95.00%
Land and building held for development			$ 20,200,000	$ 18,400,000
Capitalized cost			1,800,000
Capitalized interest expense			$ 531,000
Overlake [Member]
Real Estate Facilities [Line Items]
Disposal date of real estate			Feb. 27, 2015
Leasable space (in square feet) | ft²	82,000
Proceeds from the sale of real estate facility	$ 13,900,000
Number of buildings sold | item	5
Number of buildings held for disposition | item				5
Gain on sale of real estate facilities	$ 4,800,000
Milwaukie Business Park [Member]
Real Estate Facilities [Line Items]
Disposal date of real estate			Feb. 13, 2015
Leasable space (in square feet) | ft²		102,000
Proceeds from the sale of real estate facility		$ 10,600,000
Number of buildings sold | item		6
Gain on sale of real estate facilities		$ 7,600,000
Sacramento Business Parks [Member]
Real Estate Facilities [Line Items]
Leasable space (in square feet) | ft²			367,000	367,000
Number of business parks held for disposition | item			2	2
Sacramento Business Parks [Member] | Subsequent Event [Member]
Real Estate Facilities [Line Items]
Number of business parks sold | item			2
Proceeds from the sale of real estate facility			$ 29,300,000
Tempe Business Park [Member]
Real Estate Facilities [Line Items]
Leasable space (in square feet) | ft²			23,000	23,000
Number of properties held for disposition | item			1	1
Maximum [Member] | Northern Virginia Redeveloped Land [Member]
Real Estate Facilities [Line Items]
Leasable space (in square feet) | ft²			450,000

XML

Stock Compensation (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item $ / shares shares	Jun. 30, 2014 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of stock granted | $ / shares			$ 83.47
Restricted stock units granted			66,506	0
Options and restricted stock units authorized to grant	842,000		842,000
Exercise of stock options, shares			39,500
Proceeds from the exercise of stock options | $			$ 2,000,000	$ 2,443,000
Number of units vested			21,184
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of options granted | $ / shares			$ 8.49	$ 10.95
Dividend yield			2.50%	2.30%
Expected volatility			16.10%	17.70%
Expected life (in years)			5 years	5 years
Risk-free interest rate			1.40%	1.70%
Stock options expense | $	$ 49,000	$ 108,000	$ 177,000	$ 230,000
Unamortized compensation expense | $	496,000		$ 496,000
Weighted average recognized period of unamortized compensation expenses (in years)			3 years 4 months 24 days
Exercise of stock options, shares			39,500	49,273
Aggregate intrinsic value of the stock options exercised | $			$ 1,000,000	$ 1,700,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units expense | $	84,000	108,000	192,000	$ 284,000
Unamortized compensation expense | $	$ 24,300,000		$ 24,300,000
Weighted average recognized period of unamortized compensation expenses (in years)			4 years 8 months 12 days
Number of units vested			21,184	8,430
Number of units issued			13,224	5,341
Aggregate fair value of the shares vested | $			$ 1,700,000	$ 708,000
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]
Number of defined targets to achieve for restricted stock unit awards, maximum | item			3
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			98,600
Maximum shares for cumulative four-year period			84,514
Compensation expense | $	$ 2,400,000	2,400,000	$ 4,500,000	3,200,000
Unamortized compensation expense | $	23,000,000		$ 23,000,000
Number of units vested			16,634
Number of units issued			10,495
Aggregate fair value of the shares vested | $			$ 1,300,000
Retirement Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $	79,000	77,000	158,000	153,000
Unamortized compensation expense | $	$ 1,400,000	$ 1,300,000	$ 1,400,000	$ 1,300,000
Number of units issued			0	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

XML

Real Estate Facilities (Tables)

6 Months Ended

Jun. 30, 2015

Real Estate Facilities [Abstract]

Activity In Real Estate Facilities

			Buildings and		Accumulated
	Land		Improvements		Depreciation		Total
Balances at December 31, 2014	$	793,569	$	2,182,993	$	(991,497)	$	1,985,065
Capital expenditures, net		—		25,685		—		25,685
Disposals		—		(8,254)		8,254		—
Depreciation and amortization		—		—		(53,258)		(53,258)
Transfer to properties held for disposition		—		(330)		478		148
Balances at June 30, 2015	$	793,569	$	2,200,094	$	(1,036,023)	$	1,957,640