10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2011

or

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                  to                 .

Commission File Number: 001-32269

EXTRA SPACE STORAGE INC.

(Exact name of registrant as specified in its charter)

Maryland	20-1076777
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

2795 East Cottonwood Parkway, Suite 400

Salt Lake City, Utah 84121

(Address of principal executive offices)

Registrant’s telephone number, including area code:  (801) 562-5556

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 x No o

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 x No o

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 the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer x	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
(Do not check if a 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 o No x

The number of shares outstanding of the registrant’s common stock, par value $0.01 per share, as of July 30, 2011 was 94,264,593.

EXTRA SPACE STORAGE INC.

TABLE OF CONTENTS

STATEMENT ON FORWARD-LOOKING INFORMATION	3
PART I. FINANCIAL INFORMATION	4
ITEM 1. FINANCIAL STATEMENTS	4
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited)	9
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	19
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	30
ITEM 4. CONTROLS AND PROCEDURES	31
PART II. OTHER INFORMATION	31
ITEM 1. LEGAL PROCEEDINGS	31
ITEM 1A. RISK FACTORS	32
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	32
ITEM 3. DEFAULTS UPON SENIOR SECURITIES	32
ITEM 4. REMOVED AND RESERVED	32
ITEM 5. OTHER INFORMATION	32
ITEM 6. EXHIBITS	32
SIGNATURES	33

2

STATEMENT ON FORWARD-LOOKING INFORMATION

Certain information set forth in this report contains “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements include statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans or intentions relating to acquisitions and other information that is not historical information. In some cases, forward-looking statements can be identified by terminology such as “believes,” “expects,” “estimates,” “may,” “will,” “should,” “anticipates,” or “intends” or the negative of such terms or other comparable terminology, or by discussions of strategy. We may also make additional forward-looking statements from time to time. All such subsequent forward-looking statements, whether written or oral, by us or on our behalf, are also expressly qualified by these cautionary statements.

All forward-looking statements, including without limitation, management’s examination of historical operating trends and estimate of future earnings, are based upon our current expectations and various assumptions. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them, but there can be no assurance that management’s expectations, beliefs and projections will result or be achieved. All forward-looking statements apply only as of the date made. We undertake no obligation to publicly update or revise forward-looking statements which may be made to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events.

There are a number of risks and uncertainties that could cause our actual results to differ materially from the forward-looking statements contained in or contemplated by this report. Any forward-looking statements should be considered in light of the risks referenced in “Part II. Item 1A. Risk Factors” below and in “Part I. Item 1A. Risk Factors” included in our most recent Annual Report on Form 10-K. Such factors include, but are not limited to:

·changes in general economic conditions, the real estate industry and the markets in which we operate;

·the effect of competition from new and existing self-storage facilities or other storage alternatives, which could cause rents and occupancy rates to decline;

·difficulties in our ability to evaluate, finance, complete and integrate acquisitions and developments successfully and to lease up those properties, which could adversely affect our profitability;

·potential liability for uninsured losses and environmental contamination;

·the impact of the regulatory environment as well as national, state, and local laws and regulations including, without limitation, those governing real estate investment trusts (“REITs”), which could increase our expenses and reduce our cash available for distribution;

·disruptions in credit and financial markets and resulting difficulties in raising capital or obtaining credit at reasonable rates or at all, which could impede our ability to grow;

·increased interest rates and operating costs;

·reductions in asset valuations and related impairment charges;

·delays in the development and construction process, which could adversely affect our profitability;

·the failure to maintain our REIT status for federal income tax purposes;

·economic uncertainty due to the impact of war or terrorism, which could adversely affect our business plan; and

·our ability to attract and retain qualified personnel and management members.

3

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Extra Space Storage Inc.

Condensed Consolidated Balance Sheets

(amounts in thousands, except share data)

	June 30, 2011			December 31, 2010
	(unaudited)
Assets:
Real estate assets:
Net operating real estate assets	$	2,038,827		$	1,935,319
Real estate under development	6,800			37,083
Net real estate assets	2,045,627			1,972,402
Investments in real estate ventures	137,997			140,560
Cash and cash equivalents	35,187			46,750
Restricted cash	32,700			30,498
Receivables from related parties and affiliated real estate joint ventures	8,490			10,061
Other assets, net	50,856			48,197
Total assets	$	2,310,857		$	2,248,468
Liabilities, Noncontrolling Interests and Equity:
Notes payable	$	855,323		$	871,403
Notes payable to trusts	119,590			119,590
Exchangeable senior notes	87,663			87,663
Discount on exchangeable senior notes	(1,337		)	(2,205		)
Lines of credit	129,000			170,467
Accounts payable and accrued expenses	32,712			34,210
Other liabilities	28,962			28,269
Total liabilities	1,251,913			1,309,397
Commitments and contingencies
Equity:
Extra Space Storage Inc. stockholders’ equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding	—			—
Common stock, $0.01 par value, 300,000,000 shares authorized, 94,243,303 and 87,587,322 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively	942			876
Paid-in capital	1,278,939			1,148,820
Accumulated other comprehensive deficit	(6,436		)	(5,787		)
Accumulated deficit	(269,173		)	(262,508		)
Total Extra Space Storage Inc. stockholders’ equity	1,004,272			881,401
Noncontrolling interest represented by Preferred Operating Partnership units, net of $100,000 note receivable	29,658			29,733
Noncontrolling interests in Operating Partnership	23,900			26,803
Other noncontrolling interests	1,114			1,134
Total noncontrolling interests and equity	1,058,944			939,071
Total liabilities, noncontrolling interests and equity	$	2,310,857		$	2,248,468

See accompanying notes to unaudited condensed consolidated financial statements.

4

Extra Space Storage Inc.

Condensed Consolidated Statements of Operations

(amounts in thousands, except share data)

(unaudited)

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Revenues:
Property rental	$	64,300		$	56,786		$	125,790		$	112,929
Management and franchise fees	6,144			5,653			12,111			11,205
Tenant reinsurance	7,596			6,338			14,620			12,230
Total revenues	78,040			68,777			152,521			136,364
Expenses:
Property operations	22,712			20,941			46,056			42,897
Tenant reinsurance	1,382			1,457			2,997			2,680
Unrecovered development and acquisition costs	1,570			142			1,819			212
General and administrative	12,432			11,229			24,090			22,285
Depreciation and amortization	14,092			12,202			27,677			24,621
Total expenses	52,188			45,971			102,639			92,695
Income from operations	25,852			22,806			49,882			43,669
Interest expense	(16,261		)	(16,233		)	(32,675		)	(33,507		)
Non-cash interest expense related to amortization of discount on exchangeable senior notes	(440		)	(416		)	(868		)	(820		)
Interest income	189			211			371			536
Interest income on note receivable from Preferred Operating Partnership unit holder	1,212			1,212			2,425			2,425
Income before equity in earnings of real estate ventures and income tax expense	10,552			7,580			19,135			12,303
Equity in earnings of real estate ventures	2,376			1,559			4,187			3,060
Income tax expense	(411		)	(1,214		)	(665		)	(2,259		)
Net income	12,517			7,925			22,657			13,104
Net income allocated to Preferred Operating Partnership noncontrolling interests	(1,552		)	(1,507		)	(3,084		)	(2,986		)
Net income allocated to Operating Partnership and other noncontrolling interests	(356		)	(238		)	(663		)	(370		)
Net income attributable to common stockholders	$	10,609		$	6,180		$	18,910		$	9,748
Net income per common share
Basic	$	0.12		$	0.07		$	0.21		$	0.11
Diluted	$	0.12		$	0.07		$	0.21		$	0.11
Weighted average number of shares
Basic	91,439,042			87,367,967			89,733,518			87,122,064
Diluted	96,010,848			92,304,831			94,336,141			92,026,150
Cash dividends paid per common share	$	0.14		$	0.10		$	0.28		$	0.20

See accompanying notes to unaudited condensed consolidated financial statements.

5

Extra Space Storage Inc.

Condensed Consolidated Statement of Equity

(amounts in thousands, except share data)

(unaudited)

	Noncontrolling Interests									Extra Space Storage Inc. Stockholders’ Equity
	Preferred Operating			Operating										Paid-in		Accumulated Other Comprehensive			Accumulated			Total
	Partnership			Partnership			Other			Shares		Par Value		Capital		Deficit			Deficit			Equity
Balances at December 31, 2010	$	29,733		$	26,803		$	1,134		87,587,322		$	876	$	1,148,820	$	(5,787	)	$	(262,508	)	$	939,071
Issuance of common stock upon the exercise of options	—			—			—			816,806		8		10,497		—			—			10,505
Restricted stock grants issued	—			—			—			220,630		2		—		—			—			2
Restricted stock grants cancelled	—			—			—			(10,519	)	—		—		—			—			—
Issuance of common stock, net of offering costs	—			—			—			5,335,423		53		112,479		—			—			112,532
Compensation expense related to stock-based awards	—			—			—			—		—		2,711		—			—			2,711
Redemption of Operating Partnership units for common stock	—			(2,344		)	—			293,641		3		2,341		—			—			—
Redemption of Operating Partnership units for cash	—			(271		)	—			—		—		—		—			—			(271		)
Comprehensive income:
Net income (loss)	3,084			670			(7		)	—		—		—		—			18,910			22,657
Change in fair value of interest rate swap	(7		)	(18		)	—			—		—		—		(649		)	—			(674		)
Total comprehensive income																						21,983
Tax effect from vesting of restricted stock grants and stock option exercises	—			—			—			—		—		2,091		—			—			2,091
Distributions to Operating Partnership units held by noncontrolling interests	(3,152		)	(940		)	—			—		—		—		—			—			(4,092		)
Distributions to other noncontrolling interests	—			—			(13		)	—		—		—		—			—			(13		)
Dividends paid on common stock at $0.28 per share	—			—			—			—		—		—		—			(25,575		)	(25,575		)
Balances at June 30, 2011	$	29,658		$	23,900		$	1,114		94,243,303		$	942	$	1,278,939	$	(6,436	)	$	(269,173	)	$	1,058,944

See accompanying notes to unaudited condensed consolidated financial statements.

6

Extra Space Storage Inc.
Condensed Consolidated Statements of Cash Flows

(amounts in thousands)
(unaudited)

	Six months ended June 30,
	2011			2010
Cash flows from operating activities:
Net income	$	22,657		$	13,104
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,677			24,621
Amortization of deferred financing costs	2,233			2,347
Non-cash interest expense related to amortization of discount on exchangeable senior notes	868			820
Compensation expense related to stock-based awards	2,711			2,402
Distributions from real estate ventures in excess of earnings	5,169			3,095
Changes in operating assets and liabilities:
Receivables from related parties and affiliated real estate joint ventures	1,393			2,767
Other assets	4,960			(65		)
Accounts payable and accrued expenses	(1,498		)	(1,193		)
Other liabilities	(977		)	(1,827		)
Net cash provided by operating activities	65,193			46,071
Cash flows from investing activities:
Acquisition of real estate assets	(82,071		)	(16,460		)
Development and construction of real estate assets	(4,494		)	(18,306		)
Proceeds from sale of properties to joint venture	—			15,750
Investments in real estate ventures	(3,405		)	(9,059		)
Change in restricted cash	(2,202		)	5,509
Purchase of equipment and fixtures	(3,463		)	(1,115		)
Net cash used in investing activities	(95,635		)	(23,681		)
Cash flows from financing activities:
Proceeds from the sale of common stock	112,532			—
Proceeds from notes payable and lines of credit	264,686			104,093
Principal payments on notes payable and lines of credit	(335,693		)	(210,647		)
Deferred financing costs	(3,200		)	(1,884		)
Redemption of Operating Partnership units held by noncontrolling interest	(271		)	—
Net proceeds from exercise of stock options	10,505			3,705
Dividends paid on common stock	(25,575		)	(17,455		)
Distributions to noncontrolling interests (Operating Partnership and other)	(4,105		)	(3,798		)
Net cash provided by (used in) financing activities	18,879			(125,986		)
Net decrease in cash and cash equivalents	(11,563		)	(103,596		)
Cash and cash equivalents, beginning of the period	46,750			131,950
Cash and cash equivalents, end of the period	$	35,187		$	28,354

See accompanying notes to unaudited condensed consolidated financial statements.

7

Extra Space Storage Inc.
Condensed Consolidated Statements of Cash Flows

(amounts in thousands)
(unaudited)

	Six months ended June 30,
	2011			2010
Supplemental schedule of cash flow information
Interest paid, net of amounts capitalized	$	31,533		$	31,723
Supplemental schedule of noncash investing and financing activities:
Deconsolidation of joint ventures due to application of Accounting Standards Codification 810:
Real estate assets, net	$	—		$	(42,739	)
Investments in real estate ventures	—			404
Receivables from related parties and affiliated real estate joint ventures	—			21,142
Other assets and other liabilities	—			(51		)
Notes payable	—			21,348
Other noncontrolling interests	—			(104		)
Redemption of Operating Partnership units held by noncontrolling interests for common stock	$	2,344		$	—
Acquisitions of real estate assets
Real estate assets, net	$	8,660		$	6,475
Notes payable	(8,660		)	(6,475		)

See accompanying notes to unaudited condensed consolidated financial statements.

8

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited)

Amounts in thousands, except property and share data

1.ORGANIZATION

Extra Space Storage Inc. (the “Company”) is a self-administered and self-managed real estate investment trust (“REIT”), formed as a Maryland corporation on April 30, 2004 to own, operate, manage, acquire, develop and redevelop professionally managed self-storage facilities located throughout the United States. The Company continues the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. The Company’s interest in its properties is held through its operating partnership, Extra Space Storage LP (the “Operating Partnership”), which was formed on May 5, 2004. The Company’s primary assets are general partner and limited partner interests in the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT (“UPREIT”). The Company has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended.  To the extent the Company continues to qualify as a REIT, it will not be subject to tax, with certain limited exceptions, on the taxable income that is distributed to its stockholders.

The Company invests in self-storage facilities by acquiring or developing wholly-owned facilities or by acquiring an equity interest in real estate entities.  At June 30, 2011, the Company had direct and indirect equity interests in 680 operating storage facilities.  In addition, the Company managed 180 properties for franchisees and third parties, bringing the total number of operating properties which it owns and/or manages to 860.  These properties are located in 34 states and Washington, D.C.

The Company operates in three distinct segments: (1) property management, acquisition and development; (2) rental operations; and (3) tenant reinsurance. The Company’s property management, acquisition and development activities include managing, acquiring, developing and selling self-storage facilities. On June 2, 2009, the Company announced the wind-down of its development activities.  As of June 30, 2011, there was one remaining development project in process.  The Company expects to complete this project by the end of 2011.  The rental operations activities include rental operations of self-storage facilities. No single tenant accounts for more than 5% of rental income.  Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in the Company’s self storage facilities.

2.BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements of the Company are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they may not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (including normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2011 are not necessarily indicative of results that may be expected for the year ended December 31, 2011. The condensed consolidated balance sheet as of December 31, 2010 has been derived from the Company’s audited financial statements as of that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. 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, 2010 as filed with the Securities and Exchange Commission.

3.FAIR VALUE DISCLOSURES

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table provides information for each major category of assets and liabilities that are measured at fair value on a recurring basis:

				Fair Value Measurements at Reporting Date Using
Description	June 30, 2011			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Other liabilities - Cash Flow Hedge Swap Agreements	$	(6,748	)	$	—	$	(6,748	)	$	—

9

The fair value of our derivatives is based on quoted market prices of similar instruments from various banking institutions or an independent third party provider for similar instruments. In determining the fair value, we consider our non-performance risk and that of our counterparties.

There were no transfers of assets and liabilities between Level 1 and Level 2 during the six months ended June 30, 2011.  The Company did not have any significant assets or liabilities that are re-measured on a recurring basis using significant unobservable inputs (Level 3) for the six months ended June 30, 2011.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Long-lived assets held for use are evaluated for impairment when events or circumstances indicate there may be impairment.  The Company reviews each self-storage facility at least annually to determine if any such events or circumstances have occurred or exist.  The Company focuses on facilities where occupancy and/or rental income have decreased by a significant amount.  For these facilities, the Company determines whether the decrease is temporary or permanent and whether the facility will likely recover the lost occupancy and/or revenue in the short term.  In addition, the Company carefully reviews facilities in the lease-up stage and compares actual operating results to original projections.

When the Company determines that an event that may indicate impairment has occurred, the Company compares the carrying value of the related long-lived assets to the undiscounted future net operating cash flows attributable to the assets.  An impairment loss is recorded if the net carrying value of the assets exceeds the undiscounted future net operating cash flows attributable to the assets.  The impairment loss recognized equals the excess of net carrying value over the related fair value of the assets.

When real estate assets are identified by management as held for sale, the Company discontinues depreciating the assets and estimates the fair value of the assets, net of selling costs.  If the estimated fair value, net of selling costs, of the assets that have been identified as held for sale is less than the net carrying value of the assets, then a valuation allowance is established.  The operations of assets held for sale or sold during the period are generally presented as discontinued operations for all periods presented.

The Company assesses whether there are any indicators that the value of its investments in unconsolidated real estate ventures may be impaired annually and when events or circumstances indicate there may be impairment.  An investment is impaired if the Company’s estimate of the fair value of the investment is less than its carrying value.  To the extent impairment has occurred, and is considered to be other than temporary, the loss is measured as the excess of the carrying amount over the fair value of the investment.

In connection with the Company’s acquisition of self-storage facilities, the purchase price is allocated to the tangible and intangible assets and liabilities acquired based on their fair values, which are estimated using significant unobservable inputs. The value of the tangible assets, consisting of land and buildings, is determined as if vacant. Intangible assets, which represent the value of existing tenant relationships, are recorded at their fair values based on the avoided cost to replace the current leases. The Company measures the value of tenant relationships based on the rent lost due to the amount of time required to replace existing customers, which is based on the Company’s historical experience with turnover in its facilities. Debt assumed as part of an acquisition is recorded at fair value based on current interest rates compared to contractual rates. Acquisition-related transaction costs are expensed as incurred.

Fair Value of Financial Instruments

The carrying values of cash and cash equivalents, restricted cash, receivables, other financial instruments included in other assets, accounts payable and accrued expenses, variable rate notes payable and notes payable to trusts, lines of credit and other liabilities reflected in the condensed consolidated balance sheets at June 30, 2011 and December 31, 2010 approximate fair value. The fair values of the Company’s notes receivable, fixed rate notes payable and notes payable to trusts and exchangeable senior notes are as follows:

	June 30, 2011				December 31, 2010
	Fair		Carrying		Fair		Carrying
	Value		Value		Value		Value
Note receivable from Preferred Operating Partnership unit holder	$	95,582	$	100,000	$	115,696	$	100,000
Fixed rate notes payable and notes payable to trusts	$	791,198	$	757,921	$	777,575	$	731,588
Exchangeable senior notes	$	92,383	$	87,663	$	118,975	$	87,663

10

4.NET INCOME PER COMMON SHARE

Basic net income per common share is computed by dividing net income by the weighted average common shares outstanding, including unvested share based payment awards that contain a non-forfeitable right to dividends or dividend equivalents. Diluted earnings per common share measures the performance of the Company over the reporting period while giving effect to all potential common shares that were dilutive and outstanding during the period. The denominator includes the weighted average number of basic shares and the number of additional common shares that would have been outstanding if the potential common shares that were dilutive had been issued and is calculated using either the treasury stock or if-converted method. Potential common shares are securities (such as options, warrants, convertible debt, exchangeable Series A Participating Redeemable Preferred Operating Partnership units (“Preferred OP units”) and exchangeable Operating Partnership units (“OP units”)) that do not have a current right to participate in earnings but could do so in the future by virtue of their option or conversion right. In computing the dilutive effect of convertible securities, net income is adjusted to add back any changes in earnings in the period associated with the convertible security. The numerator also is adjusted for the effects of any other non-discretionary changes in income or loss that would result from the assumed conversion of those potential common shares. In computing diluted earnings per share, only potential common shares that are dilutive, those that reduce earnings per share, are included.

The Company’s Operating Partnership has $87,663 of exchangeable senior notes issued and outstanding as of June 30, 2011 that also can potentially have a dilutive effect on its earnings per share calculations. The exchangeable senior notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the exchangeable senior notes. The exchangeable senior notes are not exchangeable unless the price of the Company’s common stock is greater than or equal to 130% of the applicable exchange price for a specified period during a quarter, or unless certain other events occur. The exchange price was $23.45 per share at June 30, 2011, and could change over time as described in the indenture. The price of the Company’s common stock did not exceed 130% of the exchange price for the specified period of time during the second quarter of 2011; therefore holders of the exchangeable senior notes may not elect to convert them during the third quarter of 2011.

The Company has irrevocably agreed to pay only cash for the accreted principal amount of the exchangeable senior notes relative to its exchange obligations, but has retained the right to satisfy the exchange obligations in excess of the accreted principal amount in cash and/or common stock. Though the Company has retained that right, Accounting Standards Codification (“ASC”) 260, “Earnings Per Share,” requires an assumption that shares will be used to pay the exchange obligations in excess of the accreted principal amount, and requires that those shares be included in the Company’s calculation of weighted average common shares outstanding for the diluted earnings per share computation. No shares related to the exchangeable senior notes were included in the computations for the three and six month periods ended June 30, 2011 or 2010 because there was no excess over the accreted principal for these periods.

For the purposes of computing the diluted impact on earnings per share of the potential conversion of Preferred OP units into common shares, where the Company has the option to redeem in cash or shares and where the Company has stated the positive intent and ability to settle at least $115,000 of the instrument in cash (or net settle a portion of the Preferred OP units against the related outstanding note receivable), only the amount of the instrument in excess of $115,000 is considered in the calculation of shares contingently issuable for the purposes of computing diluted earnings per share as allowed by ASC 260-10-45-46.

For the three months ended June 30, 2011 and 2010, options to purchase 122,321 and 1,902,695 shares of common stock, and for the six months ended June 30, 2011 and 2010, 99,482 and 2,387,550 shares of common stock, respectively, were excluded from the computation of earnings per share as their effect would have been anti-dilutive.  All restricted stock grants have been included in basic and diluted shares outstanding because such shares earn a non-forfeitable dividend and carry voting rights.

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The computation of net income per common share is as follows:

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Net income attributable to common stockholders	$	10,609		$	6,180		$	18,910		$	9,748
Add: Income allocated to noncontrolling interest - Preferred Operating Partnership and Operating Partnership	1,910			1,762			3,754			3,390
Subtract: Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership	(1,437		)	(1,437		)	(2,875		)	(2,875		)
Net income for diluted computations	$	11,082		$	6,505		$	19,789		$	10,263
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	91,439,042			87,367,967			89,733,518			87,122,064
Operating Partnership units	3,049,935			3,627,368			3,049,935			3,627,368
Preferred Operating Partnership units	989,980			989,980			989,980			989,980
Dilutive and cancelled stock options	531,891			319,516			562,708			286,738
Average number of common shares outstanding - diluted	96,010,848			92,304,831			94,336,141			92,026,150
Net income per common share
Basic	$	0.12		$	0.07		$	0.21		$	0.11
Diluted	$	0.12		$	0.07		$	0.21		$	0.11

5.PROPERTY ACQUISITIONS

The following table summarizes the Company’s acquisitions of operating properties for the six months ended June 30, 2011 and does not include improvements made to existing assets:

			Consideration Paid									Acquisition Date Fair Value
Property Location	Number of Properties	Date of Acquisition	Total Paid		Cash Paid		Loan Assumed		Net Liabilities/ (Assets) Assumed			Land		Building		Intangible		Closing costs - expensed			Source of Acquisition
Utah, Texas	2	4/1/2011	$	7,262	$	7,205	$	—	$	57		$	1,512	$	5,548	$	188	$	14		Affiliated joint venture
California	1	4/7/2011	8,207		8,150		—		57			2,211		5,829		163		4			Unrelated third party
Tennessee	1	4/15/2011	2,577		2,514		—		25			652		1,791		79		17			Unrelated third party
Colorado	1	5/25/2011	3,540		2,262		1,290		(12		)	407		3,077		61		(5		)	Unrelated third party
Virginia	1	5/26/2011	10,513		5,205		5,463		(154		)	932		9,349		202		31			Unrelated third party
New Jersey	1	6/2/2011	4,963		4,959		—		4			1,644		3,115		135		69			Affiliated joint venture
Colorado	1	6/10/2011	4,600		2,664		1,907		29			296		4,199		98		7			Unrelated third party
Nevada	1	6/22/2011	3,355		3,339		—		16			1,441		1,810		98		6			Unrelated third party
Ohio, Indiana, Kentucky	15	6/27/2011	39,773		39,387		—		386			13,587		24,991		903		292			Unrelated third party

On January 1, 2011, the Company paid $320 in cash to obtain its joint venture partners’ equity interests in a joint venture.  No gain or loss was recognized on this transaction.  The joint venture owned a single stabilized self-storage property located in Pennsylvania and was previously accounted for under the equity method.  This property is now wholly owned and consolidated by the Company.

6.VARIABLE INTERESTS

The Company has interests in two unconsolidated joint ventures with unrelated third parties which are variable interest entities (“VIEs” or the “VIE JVs”). The Company holds 18% and 39% of the equity interests in the two VIE JVs, and has 50% of the voting rights in each of the VIE JVs. Qualification as a VIE was based on the determination that the equity investments at risk for each of these joint ventures were not sufficient based on a qualitative and quantitative analysis performed by the Company. The Company performed a qualitative analysis for these joint ventures to determine which party was the primary beneficiary of each VIE. The Company determined that since the powers to direct the activities most significant to the economic performance of these entities are shared equally by the Company and its joint venture partners, there is no primary beneficiary. Accordingly, these interests are recorded using the equity method.

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The VIE JVs each own a single self-storage property. These joint ventures are financed through a combination of (1) equity contributions from the Company and its joint venture partners, (2) mortgage notes payable and (3) payables to the Company. The payables to the Company consist of amounts owed for expenses paid on behalf of the joint ventures by the Company as manager and mortgage notes payable to the Company. The Company performs management services for the VIE JVs in exchange for a management fee of approximately 6% of cash collected by the properties. The Company has not provided financial or other support during the periods presented to the VIE JVs that it was not previously contractually obligated to provide.

The Company guarantees the mortgage notes payable for the VIE JVs. The Company’s maximum exposure to loss for these joint ventures as of June 30, 2011 is the total of the guaranteed loan balances, the payables due to the Company and the Company’s investment balances in the joint ventures. The Company believes that the risk of incurring a material loss as a result of having to perform on the loan guarantees is unlikely and therefore no liability has been recorded related to these guarantees. Also, repossessing and/or selling the self-storage facility and land that collateralize the loans could provide funds sufficient to reimburse the Company. Additionally, the Company believes the payables to the Company are collectible.

The following table compares the liability balance and the maximum exposure to loss related to the VIE JVs as of June 30, 2011:

						Balance of				Maximum
	Liability		Investment			Guaranteed		Payables to		Exposure
	Balance		Balance			Loan		Company		to Loss		Difference
Extra Space of Montrose Avenue LLC	$	—	$	1,214		$	4,838	$	2,469	$	8,521	$	(8,521	)
Extra Space of Sacramento One LLC	—		(862		)	4,307		6,094		9,539		(9,539		)
	$	—	$	352		$	9,145	$	8,563	$	18,060	$	(18,060	)

The Operating Partnership has three wholly-owned unconsolidated subsidiaries (“Trust,” “Trust II,” and “Trust III,” together, the “Trusts”) that have issued trust preferred securities to third parties and common securities to the Operating Partnership.  The proceeds from the sale of the preferred and common securities were loaned in the form of notes to the Operating Partnership.  The Trusts are VIEs because the holders of the equity investment at risk (the trust preferred securities) do not have the power to direct the activities of the entities that most significantly affect the entities’ economic performance because of their lack of voting or similar rights.  Because the Operating Partnership’s investment in the Trusts’ common securities was financed directly by the Trusts as a result of its loan of the proceeds to the Operating Partnership, that investment is not considered to be an equity investment at risk.  The Operating Partnership’s investment in the Trusts is not a variable interest because equity interests are variable interests only to the extent that the investment is considered to be at risk, and therefore the Operating Partnership cannot be the primary beneficiary of the Trusts.  Since the Company is not the primary beneficiary of the Trusts, they have not been consolidated.  A debt obligation has been recorded in the form of notes for the proceeds as discussed above, which are owed to the Trusts.  The Company has also included its investment in the Trusts’ common securities in other assets on the condensed consolidated balance sheets.

The Company has not provided financing or other support during the periods presented to the Trusts that it was not previously contractually obligated to provide.  The Company’s maximum exposure to loss as a result of its involvement with the Trusts is equal to the total amount of the notes discussed above less the amounts of the Company’s investments in the Trusts’ common securities.  The net amount is the notes payable that the Trusts owe to third parties for their investments in the Trusts’ preferred securities.

The following is a tabular comparison of the liabilities the Company has recorded as a result of its involvement with the Trusts to the maximum exposure to loss the Company is subject to as a result of such involvement as of June 30, 2011:

	Notes payable		Investment		Maximum
	to Trusts		Balance		exposure to loss		Difference
Trust	$	36,083	$	1,083	$	35,000	$	—
Trust II	42,269		1,269		41,000		—
Trust III	41,238		1,238		40,000		—
	$	119,590	$	3,590	$	116,000	$	—

The Company had no consolidated VIEs during the six months ended June 30, 2011 or 2010.

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7.DERIVATIVES

GAAP requires the recognition of all derivative instruments as either assets or liabilities on the balance sheet at fair value.  The accounting for changes in fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship.  A company must designate each qualifying hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in foreign operations.

The Company is exposed to certain risks relating to its ongoing business operations.  The primary risk managed by using derivative instruments is interest rate risk.  Interest rate swaps are entered into to manage interest rate risk associated with the Company’s fixed and variable-rate borrowings.  The Company designates certain interest rate swaps as cash flow hedges of variable-rate borrowings and the remainder as fair value hedges of fixed-rate borrowings.

For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in the statement of operations.  For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in other comprehensive income, outside of earnings, and subsequently reclassified to earnings when the hedged transaction affects earnings.

The following table summarizes the terms of the Company’s derivative financial instruments at June 30, 2011:

Hedge Product	Hedge Type	Notional Amounts	Strike	Effective Dates	Maturity Dates
Cash Flow Hedge Swap Agreements	Cash Flow	$8,462 - $63,000	4.24% - 6.98%	2/1/2009 - 6/11/2010	6/30/2013 - 6/27/2016

Monthly interest payments were recognized as an increase or decrease in interest expense as follows:

	Classification of	Three months ended June 30,				Six months ended June 30,
Type	Income (Expense)	2011		2010		2011		2010
Cash Flow Hedge Swap Agreements	Interest expense	(1,365	)	(640	)	(2,014	)	(1,272	)

Information relating to the gains recognized on the interest rate swap agreements is as follows:

					Gain (loss)
					reclassified from
	Gain (loss)			Location of amounts	OCI
	recognized in OCI			reclassified from OCI	Six months ended
Type	June 30, 2011			into income	June 30, 2011
Cash Flow Hedge Swap Agreements	$	(674	)	Interest expense	$	(2,014	)

The interest rate swap agreements were highly effective for the three and six months ended June 30, 2011.  The gain (loss) reclassified from other comprehensive income (“OCI”) in the preceding table represents the effective portion of the Company’s cash flow hedges reclassified from OCI to interest expense during the six months ended June 30, 2011.

The balance sheet classification and carrying amounts of the derivative instruments are as follows:

	Asset (Liability) Derivatives
	June 30, 2011				December 31, 2010
Derivatives designated as hedging	Balance Sheet	Fair			Balance Sheet	Fair
instruments:	Location	Value			Location	Value
Cash Flow Hedge Swap Agreements	Other liabilities	$	(6,748	)	Other liabilities	$	(6,074	)

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8.NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS

On June 15, 2007, the Operating Partnership entered into a Contribution Agreement with various limited partnerships affiliated with AAAAA Rent-A-Space to acquire ten self-storage facilities (the “Properties”) in exchange for 989,980 Preferred OP units of the Operating Partnership. The self-storage facilities are located in California and Hawaii.

On June 25, 2007, the Operating Partnership loaned the holders of the Preferred OP units $100,000. The note receivable bears interest at 4.85% and is due September 1, 2017. The loan is secured by the borrower’s Preferred OP units. The holders of the Preferred OP units can convert up to 114,500 Preferred OP units prior to the maturity date of the loan. If any redemption in excess of 114,500 Preferred OP units occurs prior to the maturity date, the holder of the Preferred OP units is required to repay the loan as of the date of that Preferred OP unit redemption. Preferred OP units are shown on the balance sheet net of the $100,000 loan because the borrower under the loan receivable is also the holder of the Preferred OP units.

The Operating Partnership entered into a Second Amended and Restated Agreement of Limited Partnership (as subsequently amended, the “Partnership Agreement”) which provides for the designation and issuance of the Preferred OP units. The Preferred OP units will have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

Under the Partnership Agreement, Preferred OP units in the amount of $115,000 bear a fixed priority return of 5% and have a fixed liquidation value of $115,000. The remaining balance participates in distributions with, and has a liquidation value equal to, that of the common OP units. The Preferred OP units became redeemable at the option of the holder on September 1, 2008, which redemption obligation may be satisfied, at the Company’s option, in cash or shares of its common stock.

GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity.  It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions.  If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the Preferred OP units and classifies the noncontrolling interest represented by the Preferred OP units as stockholders’ equity in the accompanying condensed consolidated balance sheets.  The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the condensed consolidated balance sheets.  Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.

9.NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

The Company’s interest in its properties is held through the Operating Partnership. ESS Holding Business Trust I, a wholly owned subsidiary of the Company, is the sole general partner of the Operating Partnership. The Company, through ESS Holding Business Trust II, a wholly owned subsidiary of the Company, is also a limited partner of the Operating Partnership. Between its general partner and limited partner interests, the Company held a 95.9% majority ownership interest therein as of June 30, 2011. The remaining ownership interests in the Operating Partnership (including Preferred OP units) of 4.1% are held by certain former owners of assets acquired by the Operating Partnership.  As of June 30, 2011, the Operating Partnership had 3,049,935 common OP units outstanding.

The noncontrolling interest in the Operating Partnership represents common OP units that are not owned by the Company. In conjunction with the formation of the Company and as a result of subsequent acquisitions, certain persons and entities contributing interests in properties to the Operating Partnership received limited partnership units in the form of either OP units or Contingent Conversion Units. Limited partners who received OP units in the formation transactions or in exchange for contributions for interests in properties have the right to require the Operating Partnership to redeem part or all of their common OP units for cash based upon the fair market value of an equivalent number of shares of the Company’s common stock (ten-day average) at the time of the redemption. Alternatively, the Company may, at its option, elect to acquire those OP units in exchange for shares of its common stock on a one-for-one basis, subject to anti-dilution adjustments provided in the Partnership Agreement.  The ten-day average closing stock price at June 30, 2011 was $20.66 and there were 3,049,935 common OP units outstanding. Assuming that all of the unit holders exercised their right to redeem all of their common OP units on June 30, 2011 and the Company elected to pay the noncontrolling members cash, the Company would have paid $63,012 in cash consideration to redeem the OP units.

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GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity.  It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions.  If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the common OP units and classifies the noncontrolling interest in the Operating Partnership as stockholders’ equity in the accompanying condensed consolidated balance sheets.  The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the condensed consolidated balance sheets.  Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.

10.OTHER NONCONTROLLING INTERESTS

Other noncontrolling interests represent the ownership interests of various third parties in three consolidated self-storage properties as of June 30, 2011.  Two of these consolidated properties were under development, and one was in the lease-up stage at June 30, 2011.  The ownership interests of the third-party owners range from 5.0% to 27.6%.  Other noncontrolling interests are included in the stockholders’ equity section of the Company’s condensed consolidated balance sheet.  The income or losses attributable to these third- party owners based on their ownership percentages are reflected in net income allocated to the Operating Partnership and other noncontrolling interests in the condensed consolidated statement of operations.

11.STOCK OFFERING

In May 2011, the Company closed a public stock offering of 5,335,423 shares of its common stock at an offering price of $21.16 per share.  The Company received gross proceeds of $112,898.  Transaction costs were $366 for net proceeds of $112,532.

12.SEGMENT INFORMATION

The Company operates in three distinct segments: (1) property management, acquisition and development; (2) rental operations; and (3) tenant reinsurance.  Financial information for the Company’s business segments is set forth below:

	June 30, 2011		December 31, 2010
Balance Sheet
Investment in real estate ventures
Rental operations	$	137,997	$	140,560
Total assets
Property management, acquisition and development	$	350,243	$	400,910
Rental operations	1,939,044		1,831,150
Tenant reinsurance	21,570		16,408
	$	2,310,857	$	2,248,468

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	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Statement of Operations
Total revenues
Property management, acquisition and development	$	6,144		$	5,653		$	12,111		$	11,205
Rental operations	64,300			56,786			125,790			112,929
Tenant reinsurance	7,596			6,338			14,620			12,230
	$	78,040		$	68,777		$	152,521		$	136,364
Operating expenses, including depreciation and amortization
Property management, acquisition and development	$	14,854		$	11,855		$	27,536		$	23,422
Rental operations	35,952			32,659			72,106			66,593
Tenant reinsurance	1,382			1,457			2,997			2,680
	$	52,188		$	45,971		$	102,639		$	92,695
Income (loss) from operations
Property management, acquisition and development	$	(8,710	)	$	(6,202	)	$	(15,425	)	$	(12,217	)
Rental operations	28,348			24,127			53,684			46,336
Tenant reinsurance	6,214			4,881			11,623			9,550
	$	25,852		$	22,806		$	49,882		$	43,669
Interest expense
Property management, acquisition and development	$	(823	)	$	(790	)	$	(1,605	)	$	(1,577	)
Rental operations	(15,878		)	(15,859		)	(31,938		)	(32,750		)
	$	(16,701	)	$	(16,649	)	$	(33,543	)	$	(34,327	)
Interest income
Property management, acquisition and development	$	187		$	209		$	366		$	531
Tenant reinsurance	2			2			5			5
	$	189		$	211		$	371		$	536
Interest income on note receivable from Preferred Operating Partnership unit holder
Property management, acquisition and development	$	1,212		$	1,212		$	2,425		$	2,425
Equity in earnings of real estate ventures
Rental operations	$	2,376		$	1,559		$	4,187		$	3,060
Income tax expense
Tenant reinsurance	$	(411	)	$	(1,214	)	$	(665	)	$	(2,259	)
Net income (loss)
Property management, acquisition and development	$	(8,134	)	$	(5,571	)	$	(14,239	)	$	(10,838	)
Rental operations	14,846			9,827			25,933			16,646
Tenant reinsurance	5,805			3,669			10,963			7,296
	$	12,517		$	7,925		$	22,657		$	13,104
Depreciation and amortization expense
Property management, acquisition and development	$	852		$	484		$	1,627		$	925
Rental operations	13,240			11,718			26,050			23,696
	$	14,092		$	12,202		$	27,677		$	24,621
Statement of Cash Flows
Acquisition of real estate assets
Property management, acquisition and development							$	(82,071	)	$	(16,460	)
Development and construction of real estate assets
Property management, acquisition and development							$	(4,494	)	$	(18,306	)

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13.COMMITMENTS AND CONTINGENCIES

The Company has guaranteed loans for unconsolidated joint ventures as follows:

			Guaranteed		Estimated
		Loan	Loan Amount		Fair Market
	Date of	Maturity	June 30,		Value of
	Guaranty	Date	2010		Assets
Extra Space of Montrose Avenue LLC	Dec-10	Dec-13	$	4,838	$	8,500
Extra Space of Sacramento One LLC	Apr-09	Apr-14	$	4,307	$	9,826
ESS Baltimore LLC	Nov-04	Feb-13	$	4,072	$	6,735

If the joint ventures default on the loans, the Company may be forced to repay the loans. Repossessing and/or selling the self-storage facilities and land that collateralizes the loans could provide funds sufficient to reimburse the Company. The Company has recorded no liability in relation to these guarantees as of June 30, 2011, as the fair value of the guarantees was not material. The Company believes the risk of incurring a material loss as a result of having to perform on these guarantees is unlikely.

The Company has been involved in routine litigation arising in the ordinary course of business. As of June 30, 2011, the Company was not involved in any material litigation nor, to its knowledge, was any material litigation threatened against it which, in the opinion of management, is expected to have a material adverse effect on the Company’s financial condition or results of operations.

14.SUBSEQUENT EVENTS

On July 8, 2011, the Company purchased one property located in Maryland for $5,650.

On August 1, 2011, the Company purchased one property located in Maryland for $7,250.

On August 2, 2011, the Company purchased one property located in Texas for $2,400.

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Extra Space Storage Inc.

Management’s Discussion and Analysis

Amounts in thousands, except property and share data

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OFOPERATIONS

CAUTIONARY LANGUAGE

The following discussion and analysis should be read in conjunction with our “Unaudited Condensed Consolidated Financial Statements” and the “Notes to Unaudited Condensed Consolidated Financial Statements” appearing elsewhere in this report and the “Consolidated Financial Statements,” “Notes to Consolidated Financial Statements” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in our Form 10-K for the year ended December 31, 2010. We make statements in this section that are forward-looking statements within the meaning of the federal securities laws. For a complete discussion of forward-looking statements, see the section in this Form 10-Q entitled “Statement on Forward-Looking Information.” (Amounts in thousands except property and share data unless otherwise stated).

CRITICAL ACCOUNTING POLICIES

Our discussion and analysis of our financial condition and results of operations are based on our unaudited condensed consolidated financial statements contained elsewhere in this report, which have been prepared in accordance with GAAP. Our notes to the unaudited condensed consolidated financial statements contained elsewhere in this report and the audited financial statements contained in our Form 10-K for the year ended December 31, 2010 describe the significant accounting policies essential to our unaudited condensed consolidated financial statements. Preparation of our financial statements requires estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions that we have used are appropriate and correct based on information available at the time that they were made. These estimates, judgments and assumptions can affect our reported assets and liabilities as of the date of the financial statements, as well as the reported revenues and expenses during the period presented. If there are material differences between these estimates, judgments and assumptions and actual facts, our financial statements may be affected.

In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require our judgment in its application. There are areas in which our judgment in selecting among available alternatives would not produce a materially different result, but there are some areas in which our judgment in selecting among available alternatives would produce a materially different result. See the notes to the unaudited condensed consolidated financial statements that contain additional information regarding our accounting policies and other disclosures.

OVERVIEW

We are a fully integrated, self-administered and self-managed REIT, formed to continue the business commenced in 1977 by our predecessor companies to own, operate, manage, acquire, develop and redevelop professionally managed self-storage properties. We derive our revenues from rents received from tenants under existing leases at each of our self-storage properties, management fees on the properties we manage for joint venture partners, franchisees and unaffiliated third parties and our tenant reinsurance program.  Our management fee is equal to approximately 6% of total revenues generated by the managed properties.

We operate in competitive markets, often where consumers have multiple self-storage properties from which to choose. Competition has impacted, and will continue to impact, our property results. We experience seasonal fluctuations in occupancy levels, with occupancy levels generally higher in the summer months due to increased moving activity. Our operating results depend materially on our ability to lease available self-storage units, to actively manage rental rates, and on the ability of our tenants to make required rental payments. We believe we are able to respond quickly and effectively to changes in local, regional and national economic conditions by centrally adjusting rental rates through the combination of our revenue management team and our industry-leading technology systems.

We continue to evaluate a range of new initiatives and opportunities in order to enable us to maximize stockholder value. Our strategies to maximize stockholder value include the following:

·Maximize the performance of properties through strategic, efficient and proactive management. We pursue revenue generating and expense minimizing opportunities in our operations. Our revenue management team seeks to maximize

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revenue by responding to changing market conditions through our technology system’s ability to provide real-time, interactive rental rate and discount management. Our size allows greater ability than the majority of our competitors to implement national, regional and local marketing programs, which we believe will attract more customers to our stores at a lower net cost.

·Acquire self-storage properties from strategic partners and third parties. Our acquisitions team continues to pursue the acquisition of single properties and multi-property portfolios that we believe can provide stockholder value. We have established a reputation as a reliable, ethical buyer, which we believe enhances our ability to negotiate and close acquisitions. In addition, we believe our status as an UPREIT enables flexibility when structuring deals.

·Expand our management business. Our management business enables us to generate increased revenues through management fees and expand our geographic footprint. This expanded footprint enables us to reduce our operating costs through economies of scale. In addition, we see our management business as a future acquisition pipeline. We pursue strategic relationships with owners that strengthen our acquisition pipeline through agreements that typically give us first right of refusal to purchase the managed property in the event of a potential sale.

U.S. and international market and economic conditions have been challenging with tighter credit conditions and slower growth.  For the six months ended June 30, 2011, concerns about the systemic impact of inflation, energy costs, geopolitical issues, and other macro-economic factors have contributed to market volatility and diminished expectations for the global economy.  Turbulence in U.S. and international markets and economies may adversely affect our liquidity and financial condition, and the financial condition of our customers.  If these market conditions continue, they may result in an adverse effect on our financial condition and results of operations.

PROPERTIES

As of June 30, 2011, we owned or had ownership interests in 680 operating self-storage properties. Of these properties, 325 are wholly-owned and 355 are held in joint ventures. In addition, we managed an additional 180 properties for franchisees or third parties bringing the total number of operating properties that we own and/or manage to 860.  These properties are located in 34 states and Washington, D.C.  As of June 30, 2011, we owned and/or managed approximately 62 million square feet of space with more than 560,000 units.

Our properties are generally situated in convenient, highly visible locations clustered around large population centers such as Atlanta, Baltimore/Washington, D.C., Boston, Chicago, Dallas, Houston, Las Vegas, Los Angeles, Miami, New York City, Orlando, Philadelphia, Phoenix, St. Petersburg/Tampa and San Francisco/Oakland. These areas all enjoy above-average population growth and income levels. The clustering of assets around these population centers enables us to reduce our operating costs through economies of scale.

We consider a property to be in the lease-up stage after it has been issued a certificate of occupancy, but before it has achieved stabilization. We consider a property to be stabilized once it has achieved either an 80% occupancy rate for a full year measured as of January 1, or has been open for three years. Although leases are short-term in duration, the typical tenant tends to remain at our properties for an extended period of time. For properties that were stabilized as of June 30, 2011, the median length of stay was approximately 13 months.  The average annual rent per square foot at these stabilized properties was $13.23 at June 30, 2011, compared to $13.25 at June 30, 2010.

Our property portfolio is made up of different types of construction and building configurations depending on the site and the municipality where it is located. Most often sites are what we consider “hybrid” facilities, a mix of both drive-up buildings and multi-floor buildings. We have a number of multi-floor buildings with elevator access only, and a number of facilities featuring ground-floor access only.

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The following table sets forth additional information regarding the occupancy of our stabilized properties on a state-by-state basis as of June 30, 2011 and 2010. The information as of June 30, 2010 is on a pro forma basis as though all the properties owned and/or managed at June 30, 2011 were under our control as of June 30, 2010.

Stabilized Property Data Based on Location

		Company	Pro forma	Company	Pro forma	Company		Pro forma
Location	Number of Properties	Number of Units as of June 30, 2011 (1)	Number of Units as of June 30, 2010	Net Rentable Square Feet as of  June 30, 2011 (2)	Net Rentable Square Feet as of  June 30, 2010	Square Foot Occupancy %  June 30, 2011		Square Foot Occupancy %  June 30, 2010
Wholly-owned properties
Alabama	3	1,396	1,368	173,419	173,779	86.7	%	87.3	%
Arizona	5	2,795	2,805	356,820	347,198	89.7	%	86.7	%
California	46	36,074	36,238	3,587,689	3,582,949	87.3	%	83.3	%
Colorado	10	4,508	4,524	569,286	569,884	90.6	%	90.8	%
Connecticut	3	1,980	2,011	178,030	178,040	93.6	%	91.8	%
Florida	28	18,206	18,269	1,944,945	1,945,619	86.9	%	84.3	%
Georgia	12	6,421	6,425	836,908	837,283	88.5	%	85.4	%
Hawaii	2	2,799	2,846	145,812	145,694	87.5	%	80.9	%
Illinois	7	4,493	4,501	465,002	467,649	84.9	%	82.0	%
Indiana	8	4,412	4,430	511,034	511,034	88.3	%	83.2	%
Kansas	1	506	507	50,340	50,310	95.2	%	88.8	%
Kentucky	4	2,188	2,201	254,191	254,191	91.4	%	87.4	%
Louisiana	2	1,413	1,412	150,165	150,035	90.1	%	87.7	%
Maryland	12	9,328	9,337	1,017,601	1,017,081	90.5	%	89.9	%
Massachusetts	28	16,730	16,733	1,718,082	1,722,676	90.0	%	85.6	%
Michigan	2	1,020	1,017	134,674	134,706	90.3	%	90.3	%
Missouri	6	3,157	3,141	374,962	374,572	91.0	%	88.0	%
Nevada	2	989	989	130,040	129,598	67.2	%	68.6	%
New Hampshire	2	1,007	1,007	125,473	125,473	90.0	%	84.6	%
New Jersey	25	20,069	20,121	1,971,586	1,973,931	89.8	%	87.3	%
New Mexico	1	536	538	71,395	71,395	92.8	%	92.4	%
New York	11	9,223	9,251	712,408	675,269	88.0	%	83.2	%
Ohio	14	8,765	8,699	994,064	994,659	78.1	%	74.8	%
Oregon	1	770	769	103,130	103,230	93.9	%	91.1	%
Pennsylvania	9	5,776	5,804	655,555	656,475	90.3	%	87.3	%
Rhode Island	1	717	719	75,336	75,841	87.4	%	86.9	%
South Carolina	4	2,156	2,173	253,406	253,406	91.6	%	87.7	%
Tennessee	3	1,617	1,626	215,420	215,265	88.4	%	86.3	%
Texas	17	10,900	10,937	1,247,355	1,244,888	89.6	%	87.8	%
Utah	7	3,195	3,204	408,357	408,988	87.7	%	85.7	%
Virginia	6	4,296	4,299	416,552	416,602	92.9	%	91.3	%
Washington	4	2,533	2,543	308,015	308,015	82.8	%	83.3	%
Total Wholly-Owned Stabilized	286	189,975	190,444	20,157,052	20,115,735	88.1	%	85.3	%
Joint-venture properties
Alabama	3	1,709	1,705	205,798	205,638	88.5	%	89.1	%
Arizona	11	6,819	6,833	767,393	751,711	87.0	%	83.1	%
California	81	58,627	58,710	6,049,702	6,023,426	87.8	%	86.0	%
Colorado	2	1,310	1,318	158,783	158,643	85.6	%	86.7	%
Connecticut	8	5,993	5,984	693,408	691,901	89.3	%	84.0	%
Delaware	1	585	582	71,680	71,735	89.9	%	92.2	%
Florida	25	20,453	20,597	2,069,715	2,076,098	85.5	%	82.2	%
Georgia	3	1,849	1,859	240,701	243,381	80.4	%	82.9	%
Illinois	9	6,450	6,446	692,131	693,715	88.5	%	84.9	%
Indiana	6	2,419	2,415	315,151	315,421	89.8	%	87.8	%
Kansas	3	1,223	1,221	163,750	163,750	83.4	%	81.9	%
Kentucky	4	2,277	2,276	269,545	269,257	90.4	%	87.0	%
Maryland	15	11,839	11,854	1,159,349	1,157,287	90.7	%	88.5	%
Massachusetts	17	9,234	9,234	1,046,695	1,049,716	87.8	%	84.5	%
Michigan	10	5,900	5,924	782,058	784,623	91.1	%	86.6	%
Missouri	2	959	960	118,245	118,045	90.0	%	84.8	%
Nevada	8	5,355	5,379	692,408	693,563	84.9	%	84.1	%
New Hampshire	3	1,310	1,321	137,314	138,234	91.2	%	84.8	%
New Jersey	20	14,878	14,913	1,559,726	1,562,266	88.1	%	85.1	%
New Mexico	9	4,655	4,670	542,327	542,699	87.1	%	86.0	%
New York	21	21,629	21,633	1,734,102	1,734,779	88.9	%	88.1	%
Ohio	13	5,854	5,856	867,920	872,430	85.6	%	84.2	%
Oregon	2	1,290	1,292	136,600	136,610	90.7	%	88.8	%
Pennsylvania	10	7,996	8,000	800,280	800,491	92.8	%	89.7	%
Rhode Island	2	1,066	1,075	128,165	128,075	78.2	%	73.5	%
Tennessee	24	13,145	13,196	1,746,123	1,747,039	88.4	%	84.4	%
Texas	19	11,762	11,768	1,536,352	1,535,099	88.9	%	86.1	%
Virginia	17	12,022	12,009	1,267,963	1,267,503	92.4	%	90.2	%
Washington	1	547	548	62,730	62,730	92.4	%	88.1	%
Washington, DC	1	1,529	1,533	101,989	102,003	94.9	%	97.2	%
Total Stabilized Joint-Ventures	350	240,684	241,111	26,118,103	26,097,868	88.3	%	85.8	%

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		Company	Pro forma	Company	Pro forma	Company		Pro forma
Location	Number of Properties	Number of Units as of June 30, 2011 (1)	Number of Units as of June 30, 2010	Net Rentable Square Feet as of  June 30, 2011 (2)	Net Rentable Square Feet as of  June 30, 2010	Square Foot Occupancy %  June 30, 2011		Square Foot Occupancy %  June 30, 2010
Managed properties
Arizona	1	580	581	67,350	67,350	50.6	%	32.6	%
California	28	19,482	19,529	2,354,558	2,259,113	72.8	%	70.4	%
Colorado	8	2,802	2,776	324,917	332,336	91.4	%	86.6	%
Connecticut	1	501	504	61,460	61,980	66.3	%	64.4	%
Florida	16	7,663	7,712	934,499	917,707	74.0	%	70.2	%
Georgia	1	923	931	106,410	105,900	75.3	%	70.9	%
Hawaii	1	332	332	34,067	34,064	57.6	%	59.6	%
Illinois	6	3,666	3,734	384,234	398,859	73.3	%	75.5	%
Indiana	3	1,684	1,711	182,679	188,119	85.7	%	81.0	%
Kansas	4	1,982	1,989	336,290	339,600	81.9	%	77.6	%
Kentucky	1	522	532	66,100	66,000	93.8	%	88.9	%
Louisiana	1	996	1,008	133,080	106,873	66.9	%	65.0	%
Maryland	15	9,184	9,352	1,044,754	1,048,730	82.5	%	77.8	%
Massachusetts	2	2,091	2,110	189,769	190,019	82.6	%	76.1	%
Missouri	3	1,525	1,533	275,198	302,558	78.3	%	77.8	%
Nevada	2	1,568	1,576	170,375	170,775	78.3	%	80.9	%
New Jersey	5	3,887	3,882	357,237	355,782	84.2	%	79.0	%
New Mexico	2	1,105	1,104	132,262	131,782	93.2	%	91.1	%
North Carolina	5	3,538	3,599	377,227	379,130	76.4	%	75.0	%
Ohio	4	1,072	1,087	158,360	161,760	75.4	%	65.4	%
Pennsylvania	18	7,382	7,436	901,110	904,355	79.4	%	69.0	%
South Carolina	2	1,169	1,027	163,267	142,867	76.3	%	81.0	%
Tennessee	3	1,497	1,495	205,225	205,365	92.0	%	91.4	%
Texas	8	4,102	4,160	542,973	544,542	82.0	%	79.1	%
Virginia	2	1,304	1,304	114,396	114,396	89.6	%	88.2	%
Washington	1	472	482	56,590	56,590	72.3	%	64.5	%
Washington, DC	2	1,263	1,263	112,459	112,459	94.6	%	92.7	%
Total Stabilized Managed Properties	145	82,292	82,749	9,786,846	9,699,011	78.3	%	74.8	%
Total Stabilized Properties	781	512,951	514,304	56,062,001	55,912,614	86.5	%	83.7	%

(1)Represents unit count as of June 30, 2011, which may differ from June 30, 2010 unit count due to unit conversions or expansions.

(2)Represents net rentable square feet as of June 30, 2011, which may differ from June 30, 2010 net rentable square feet due to unit conversions or expansions.

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The following table sets forth additional information regarding the occupancy of our lease-up properties on a state-by-state basis as of June 30, 2011 and 2010. The information as of June 30, 2010 is on a pro forma basis as though all the properties owned and/or managed at June 30, 2011 were under our control as of June 30, 2010.

Lease-up Property Data Based on Location

		Company	Pro forma	Company	Pro forma	Company		Pro forma
Location	Number of Properties	Number of Units as of June 30, 2011 (1)	Number of Units as of June 30, 2010	Net Rentable Square Feet as of  June 30, 2011 (2)	Net Rentable Square Feet as of  June 30, 2010	Square Foot Occupancy %  June 30, 2011		Square Foot Occupancy %  June 30, 2010
Wholly-owned properties
Arizona	1	644	—	71,355	—	20.0	%	0.0	%
California	13	9,206	8,614	1,006,956	933,878	67.7	%	41.5	%
Florida	8	6,574	4,133	644,265	402,705	40.6	%	25.9	%
Georgia	4	1,982	2,000	252,086	253,118	74.7	%	60.4	%
Illinois	2	1,372	1,410	150,900	151,020	66.9	%	47.6	%
Maryland	3	2,448	1,631	241,910	156,825	42.7	%	22.1	%
Massachusetts	1	615	601	74,025	73,550	72.3	%	63.9	%
New Jersey	2	1,240	1,276	126,430	127,155	74.1	%	48.3	%
New York	1	667	674	42,571	42,563	73.5	%	68.9	%
Oregon	1	724	744	76,020	75,995	64.5	%	28.0	%
Tennessee	1	505	506	69,550	69,550	69.2	%	63.6	%
Texas	2	1,066	1,087	152,860	156,050	68.1	%	72.1	%
Total Wholly-Owned Lease up	39	27,043	22,676	2,908,928	2,442,409	59.5	%	43.7	%
Joint-venture properties
California	3	2,379	2,355	216,912	216,208	72.8	%	46.5	%
Illinois	2	1,307	1,209	131,418	121,052	63.3	%	55.4	%
Total Lease up Joint-Ventures	5	3,686	3,564	348,330	337,260	69.2	%	49.7	%
Managed properties
California	2	1,742	1,739	236,569	236,239	70.7	%	60.6	%
Colorado	1	587	—	60,896	—	21.2	%	0.0	%
Florida	9	6,523	6,640	623,242	624,260	53.2	%	31.4	%
Georgia	6	3,572	3,596	528,656	535,236	62.5	%	49.9	%
Illinois	3	1,934	1,978	160,235	161,067	63.8	%	47.5	%
Massachusetts	2	1,189	1,204	122,968	123,308	56.0	%	39.7	%
New Jersey	1	846	850	78,295	78,295	82.1	%	69.7	%
New York	1	904	909	46,197	46,197	47.2	%	31.9	%
North Carolina	2	659	662	105,991	106,755	85.2	%	68.6	%
Pennsylvania	2	1,984	1,991	173,019	173,019	66.9	%	49.9	%
Rhode Island	1	985	985	90,995	90,995	43.7	%	14.5	%
South Carolina	1	742	767	76,435	76,875	60.4	%	20.9	%
Texas	2	1,594	934	172,447	103,350	18.4	%	11.9	%
Utah	1	656	654	75,801	75,601	90.5	%	74.3	%
Virginia	1	459	464	63,794	63,709	78.2	%	57.3	%
Total Lease up Managed Properties	35	24,376	23,373	2,615,540	2,494,906	58.9	%	43.9	%
Total Lease up Properties	79	55,105	49,613	5,872,798	5,274,575	59.8	%	44.2	%

(1) Represents unit count as of June 30, 2011, which may differ from June 30, 2010 unit count due to unit conversions or expansions.

(2) Represents net rentable square feet as of June 30, 2011, which may differ from June 30, 2010 net rentable square feet due to unit conversions or expansions.

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RESULTS OF OPERATIONS

Comparison of the three and six months ended June 30, 2011 and 2010

Overview

Results for the three and six months ended June 30, 2011 include the operations of 680 properties (326 of which were consolidated and 354 of which were in joint ventures accounted for using the equity method) compared to the results for the three and six months ended June 30, 2010, which included the operations of 649 properties (281 of which were consolidated and 368 of which were in joint ventures accounted for using the equity method).

Revenues

The following table sets forth information on revenues earned for the periods indicated:

	For the Three Months Ended  June 30,								For the Six Months Ended June 30,
	2011		2010		$ Change		% Change		2011		2010		$ Change		% Change
Revenues:
Property rental	$	64,300	$	56,786	$	7,514	13.2	%	$	125,790	$	112,929	$	12,861	11.4	%
Management and franchise fees	6,144		5,653		491		8.7	%	12,111		11,205		906		8.1	%
Tenant reinsurance	7,596		6,338		1,258		19.8	%	14,620		12,230		2,390		19.5	%
Total revenues	$	78,040	$	68,777	$	9,263	13.5	%	$	152,521	$	136,364	$	16,157	11.8	%

Property Rental — The increases in property rental revenues for the three and six months ended June 30, 2011 consist primarily of increases of $3,562 and $6,285, respectively, associated with acquisitions completed in 2011 and 2010, increases of $2,348 and $4,373, respectively, resulting from increases in occupancy and increases in rental rates to existing customers at our stabilized properties, and increases of $1,604 and $3,124, respectively, related to increases in occupancy at our lease-up properties.  For the six months ended June 30, 2011, these increases were partially offset by a $921 decrease associated with the sale of 19 properties to Harrison Street Real Estate Capital, LLC (Harrison Street) in January 2010.

Management and Franchise Fees — Our taxable REIT subsidiary, Extra Space Management, Inc. manages properties owned by our joint ventures, franchisees and third parties.  Management and franchise fees generally represent 6% of revenues generated from properties owned by third parties, franchisees, and unconsolidated joint ventures. The increases in management and franchise fees are related to the additional fees earned from the joint venture with Harrison Street and to the increase in third-party managed properties compared to the same periods in the prior year.  We managed 180 third-party properties as of June 30, 2011 compared to 140 third-party properties as of June 30, 2010.

Tenant Reinsurance — The increases in tenant reinsurance revenues were due to the increase of overall customer participation to approximately 64% at June 30, 2011 compared to approximately 59% at June 30, 2010.  In addition, we had 860 properties under management at June 30, 2011 compared to 789 at June 30, 2010.

Expenses

The following table sets forth information on expenses for the periods indicated:

	For the Three Months Ended  June 30,									For the Six Months Ended June 30,
	2011		2010		$ Change			% Change		2011		2010		$ Change		% Change
Expenses:
Property operations	$	22,712	$	20,941	$	1,771		8.5	%	$	46,056	$	42,897	$	3,159	7.4	%
Tenant reinsurance	1,382		1,457		(75		)	(5.1	)%	2,997		2,680		317		11.8	%
Unrecovered development and acquisition costs	1,570		142		1,428			1,005.6	%	1,819		212		1,607		758.0	%
General and administrative	12,432		11,229		1,203			10.7	%	24,090		22,285		1,805		8.1	%
Depreciation and amortization	14,092		12,202		1,890			15.5	%	27,677		24,621		3,056		12.4	%
Total expenses	$	52,188	$	45,971	$	6,217		13.5	%	$	102,639	$	92,695	$	9,944	10.7	%

Property Operations — The increases in property operations expense during the three and six months ended June 30, 2011 consist primarily of increases of $1,578 and $2,890, respectively, associated with acquisitions completed in 2011 and 2010 and increases of

24

$432 and $867, respectively, related to increases in expenses at our lease-up properties.  These increases for the three and six months ended June 30, 2011 were offset by decreases in expenses of $239 and $288, respectively, as a result of a reduction of expenses at our stabilized properties, which related mainly to property taxes, advertising and utilities expenses.  For the six months ended June 30, 2011, there was also a decrease in expenses of $310 related to the sale of 19 properties to Harrison Street in January 2010.

Tenant Reinsurance — Tenant reinsurance expense represents the costs that are incurred to provide tenant reinsurance.  The increase in these expenses for the six months ended June 30, 2011 relates to the increase of overall customer participation to approximately 64% at June 30, 2011 compared to approximately 59% at June 30, 2010.  In addition, we had 860 properties under management at June 30, 2011 compared to 789 at June 30, 2010.

Unrecovered Development and Acquisition Costs — Unrecovered development and acquisition costs for the three and six months ended June 30, 2011 and 2010 relate to unsuccessful development activities and costs associated with the acquisition of properties during the periods indicated.  The increases were due to increased acquisition activity over the prior year.

General and Administrative — The increases in general and administrative expenses for the three and six months ended June 30, 2011 were primarily due to the overall cost associated with the management of additional properties.  We managed 180 third-party properties as of June 30, 2011 compared to 140 third-party properties as of June 30, 2010.  In addition, we purchased 24 properties and opened five development properties during the first six months of 2011.

Depreciation and Amortization — Depreciation and amortization expense increased as a result of the acquisition of 15 properties and the completion of four development properties in 2010 and the acquisition of 24 properties and the completion of five development properties during the first six months of 2011.

Other Revenues and Expenses

The following table sets forth information on other revenues and expenses for the periods indicated:

	For the Three Months Ended  June 30,											For the Six Months Ended June 30,
	2011			2010			$ Change			% Change		2011			2010			$ Change			% Change
Other revenue and expenses:
Interest expense	$	(16,261	)	$	(16,233	)	$	(28	)	0.2	%	$	(32,675	)	$	(33,507	)	$	832		(2.5	)%
Non-cash interest expense related to amortization of discount on exchangeable senior notes	(440		)	(416		)	(24		)	5.8	%	(868		)	(820		)	(48		)	5.9	%
Interest income	189			211			(22		)	(10.4	)%	371			536			(165		)	(30.8	)%
Interest income on note receivable from Preferred Operating Partnership unit holder	1,212			1,212			—			—		2,425			2,425			—			—
Equity in earnings of real estate ventures	2,376			1,559			817			52.4	%	4,187			3,060			1,127			36.8	%
Income tax expense	(411		)	(1,214		)	803			(66.1	)%	(665		)	(2,259		)	1,594			(70.6	)%
Total other revenue (expense)	$	(13,335	)	$	(14,881	)	$	1,546		(10.4	)%	$	(27,225	)	$	(30,565	)	$	3,340		(10.9	)%

Interest Expense — The decrease in interest expense for the six months ended June 30, 2011 was primarily the result of a decrease in our weighted average interest rate.  As of June 30, 2011, the weighted average interest rate of our debt was 4.8%, compared to a weighted average interest rate of 5.0% as of June 30, 2010.

Non-cash Interest Expense Related to Amortization of Discount on Exchangeable Senior Notes — Represents the amortization of the discount on exchangeable senior notes, which reflects the effective interest rate relative to the carrying amount of the liability.

Interest Income — The decreases in interest income for the three and six months ended June 30, 2011, when compared to the same periods in the prior year, were primarily due to a lower average cash balance during the periods presented.

Interest Income on Note Receivable from Preferred Operating Partnership Unit Holder — Represents interest on a $100,000 loan to the holders of the Preferred OP units.

Equity in Earnings of Real Estate Ventures — The increases in equity in earnings of real estate ventures for the three and six months ended June 30, 2011 were due primarily to increased revenues at these joint ventures as a result of increases in occupancy and rental rates to new and existing customers.  In addition, we recognized an additional $367 related to gains on property sales from a joint venture in which we have a 25% ownership.

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Income Tax Expense — The decreases in income tax expense primarily relate to a solar tax credit that was partially offset by increased taxes resulting from increased tenant reinsurance income earned by our taxable REIT subsidiary.

Net Income Allocated to Noncontrolling Interests

The following table sets forth information on net income allocated to noncontrolling interests for the periods indicated:

	For the Three Months Ended  June 30,											For the Six Months Ended June 30,
	2011			2010			$ Change			% Change		2011			2010			$ Change			% Change
Net income allocated to noncontrolling interests:
Net income allocated to Preferred Operating Partnership noncontrolling interests	$	(1,552	)	$	(1,507	)	$	(45	)	3.0	%	$	(3,084	)	$	(2,986	)	$	(98	)	3.3	%
Net income allocated to Operating Partnership and other noncontrolling interests	(356		)	(238		)	(118		)	49.6	%	(663		)	(370		)	(293		)	79.2	%
Total income allocated to noncontrolling interests:	$	(1,908	)	$	(1,745	)	$	(163	)	9.3	%	$	(3,747	)	$	(3,356	)	$	(391	)	11.7	%

Net Income Allocated to Preferred Operating Partnership Noncontrolling Interests — Income allocated to the Preferred OP units as of June 30, 2011 and 2010 equals the fixed distribution paid to the Preferred OP unit holder plus approximately 1.0% of the remaining net income allocated after the adjustment for the fixed distribution paid.

Net Income Allocated to Operating Partnership and Other Noncontrolling Interests — Income allocated to the Operating Partnership as of June 30, 2011 and 2010 represents approximately 3.2% and 3.9%, respectively, of net income after the allocation of the fixed distribution paid to the Preferred OP unit holder.  Loss allocated to other noncontrolling interests represents the losses allocated to partners in consolidated joint ventures.

FUNDS FROM OPERATIONS

Funds from Operations (“FFO”) provides relevant and meaningful information about our operating performance that is necessary, along with net income and cash flows, for an understanding of our operating results. We believe FFO is a meaningful disclosure as a supplement to net earnings. Net earnings assume that the values of real estate assets diminish predictably over time as reflected through depreciation and amortization expenses.  The values of real estate assets fluctuate due to market conditions and we believe FFO more accurately reflects the value of our real estate assets.  FFO is defined by the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”) as net income computed in accordance with GAAP, excluding gains or losses on sales of operating properties, plus depreciation and amortization, and after adjustments to record unconsolidated partnerships and joint ventures on the same basis. We believe that to further understand our performance, FFO should be considered along with the reported net income and cash flows in accordance with GAAP, as presented in our consolidated financial statements.

The computation of FFO may not be comparable to FFO reported by other REITs or real estate companies that do not define the term in accordance with the current NAREIT definition or that interpret the current NAREIT definition differently. FFO does not represent cash generated from operating activities determined in accordance with GAAP, and should not be considered as an alternative to net income as an indication of our performance, as an alternative to net cash flow from operating activities, as a measure of liquidity, or an indicator of our ability to make cash distributions.  The following table sets forth the calculation of FFO for the periods indicated:

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	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Net income attributable to common stockholders	$	10,609		$	6,180		$	18,910		$	9,748
Adjustments:
Real estate depreciation	12,677			11,494			25,042			23,153
Amortization of intangibles	412			94			720			277
Joint venture real estate depreciation and amortization	2,057			2,255			4,132			4,009
Joint venture (gain)/loss on sale of properties	(366		)	—			(330		)	—
Distributions paid on Preferred Operating Partnership units	(1,437		)	(1,437		)	(2,875		)	(2,875		)
Income allocated to Operating Partnership noncontrolling interests	1,910			1,762			3,754			3,390
Funds from operations	$	25,862		$	20,348		$	49,353		$	37,702

SAME-STORE STABILIZED PROPERTY RESULTS

We consider our same-store stabilized portfolio to consist of only those properties that were wholly-owned at the beginning and at the end of the applicable periods presented that have achieved stabilization as of the first day of such period. The following table sets forth operating data for our same-store portfolio. We consider the following same-store presentation to be meaningful in regards to the properties shown below. These results provide information relating to property-level operating changes without the effects of acquisitions or completed developments.

	For the Three Months Ended June 30,						Percent		For the Six Months Ended June 30,						Percent
	2011			2010			Change		2011			2010			Change
Same-store rental and tenant reinsurance revenues	$	59,714		$	57,050		4.7	%	$	117,882		$	112,893		4.4	%
Same-store operating and tenant reinsurance expenses	19,297			19,544			(1.3	)%	39,814			39,811			0.0	%
Same-store net operating income	$	40,417		$	37,506		7.8	%	$	78,068		$	73,082		6.8	%
Non same-store rental and tenant reinsurance revenues	$	12,182		$	6,074		100.6	%	$	22,528		$	12,266		83.7	%
Non same-store operating and tenant reinsurance expenses	$	4,797		$	2,854		68.1	%	$	9,239		$	5,766		60.2	%
Total rental and tenant reinsurance revenues	$	71,896		$	63,124		13.9	%	$	140,410		$	125,159		12.2	%
Total operating and tenant reinsurance expenses	$	24,094		$	22,398		7.6	%	$	49,053		$	45,577		7.6	%
Same-store square foot occupancy as of quarter end	89.0		%	86.1		%			89.0		%	86.1		%
Properties included in same-store	253			253					253			253

The increases in same-store rental revenues for the three and six months ended June 30, 2011 as compared to the three and six months ended June 30, 2010 were due primarily to increased rental rates to incoming and existing customers and increased occupancy.  The decrease in same-store operating expenses for the three months ended June 30, 2011 as compared to June 30, 2010 was primarily due to decreased property taxes, advertising and utilities expense.

CASH FLOWS

Cash flows provided by operating activities were $65,193 and $46,071, respectively, for the six months ended June 30, 2011 and 2010. The increases compared to the same period of the prior year primarily relate to a $9,553 increase in net income and a $5,025 change in other assets.

Cash used in investing activities was $95,635 and $23,681, respectively, for the six months ended June 30, 2011 and 2010.  The increases relate primarily to an increase of $65,611 in the amount of cash used to acquire real estate assets during 2011 as compared to 2010 partially offset by a decrease of $13,812 in development and construction of real estate assets.  Additionally, in January 2010 we sold 19 properties to a joint venture with Harrison Street for $15,750, whereas no sales to joint ventures occurred during the six months ended June 30, 2011.

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Cash provided by financing activities for the six months ended June 30, 2011 was $18,879, compared to cash used in financing activities of $125,986 for the six months ended June 30, 2010.  The increase in cash provided by financing activities was primarily the result of net proceeds from the sale of common stock of $112,532 in 2011 compared to $0 in 2010.  There was also an increase in proceeds from notes payable and lines of credit of $160,593 over the same period of the prior year offset by an increase in cash paid for principal payments on notes payable and lines of credit of $125,046.

LIQUIDITY AND CAPITAL RESOURCES

As of June 30, 2011, we had $35,187 available in cash and cash equivalents. We intend to use this cash to repay debt scheduled to mature in 2011 and 2012 and for general corporate purposes. We are required to distribute at least 90% of our net taxable income, excluding net capital gains, to our stockholders on an annual basis to maintain our qualification as a REIT.

Our cash and cash equivalents are held in accounts managed by third party financial institutions and consist of invested cash and cash in our operating accounts. During 2010 and the first six months of 2011, we experienced no loss or lack of access to our cash or cash equivalents; however, there can be no assurance that access to our cash and cash equivalents will not be impacted by adverse conditions in the financial markets.

The following table sets forth information on our lines of credit for the periods indicated:

	As of June 30, 2011
Line of Credit	Amount Drawn	Capacity	Interest Rate		Origination Date	Maturity	Basis Rate	Notes
Credit Line 1	$100,000	$100,000	1.2	%	10/19/2007	10/31/2011	LIBOR plus 1.0% - 2.1%	(1),(5)
Credit Line 2	—	50,000	3.7	%	2/13/2009	2/13/2013	LIBOR plus 3.5%	(1),(4),(5)
Credit Line 3	29,000	75,000	2.4	%	6/4/2010	5/31/2013	LIBOR plus 2.2%	(2),(4),(5)
Credit Line 4	—	40,000	4.5	%	11/16/2010	11/16/2013	LIBOR plus 3.2% with floor of 4.5%	(3),(4,)(5)
Credit Line 5	—	50,000	2.9	%	4/29/2011	4/29/2014	LIBOR plus 2.75%	(3),(4),(5)
	$129,000	$315,000

(1) One year extension available

(2) One two-year extension available

(3) Two one-year extensions available

(4) Guaranteed by the Company

(5) Secured by mortgages on certain real estate assets

As of June 30, 2011, we had $1,191,576 of debt, resulting in a debt to total capitalization ratio of 36.5%.  As of June 30, 2011, the ratio of total fixed rate debt and other instruments to total debt was 71.0% (including $210,680 on which we have interest rate swaps that have been included as fixed-rate debt). The weighted average interest rate of the total of fixed and variable rate debt at June 30, 2011 was 4.8%.  Certain of our real estate assets are pledged as collateral for our debt. We are subject to certain restrictive covenants relating to our outstanding debt. We were in compliance with all financial covenants at June 30, 2011.

We expect to fund our short-term liquidity requirements, including operating expenses, recurring capital expenditures, dividends to stockholders, distributions to holders of OP units and interest on our outstanding indebtedness, out of our operating cash flow, cash on hand and borrowings under our lines of credit. In addition, we are pursuing additional term loans secured by unencumbered properties.

Our liquidity needs consist primarily of cash distributions to stockholders, facility development, property acquisitions, principal payments under our borrowings and non-recurring capital expenditures. We may from time to time seek to repurchase or redeem our outstanding debt, shares of common stock or other securities in open market purchases, privately negotiated transactions or otherwise. Such repurchases or redemptions, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors.  In addition, we evaluate, on an ongoing basis, the merits of strategic acquisitions and other relationships, which may require us to raise additional funds. We do not expect that our operating cash flow or cash balances will be sufficient to fund our liquidity needs and instead expect to fund such needs out of additional borrowings of secured or unsecured indebtedness, joint ventures with third parties, and from the proceeds of public and private offerings of equity and debt. Additional capital may not be available on terms favorable to us or at all. Any additional issuance of equity or equity-linked securities may result in dilution to our stockholders. In addition, any new securities we issue could have rights, preferences and privileges senior to holders

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of our common stock. We may also use OP units as currency to fund acquisitions from self-storage owners who desire tax-deferral in their exiting transactions.

The U.S. credit markets have experienced dislocations and liquidity disruptions, which have caused the spreads on prospective debt financings to widen. These circumstances have impacted liquidity in the debt markets, making financing terms for borrowers less attractive, and in certain cases have resulted in the unavailability of certain types of debt financing. Uncertainty in the credit markets may negatively impact our ability to make acquisitions. A prolonged downturn in the credit markets may cause us to seek alternative sources of potentially less attractive financing, and may require us to adjust our business plan accordingly. In addition, these factors may make it more difficult for us to sell properties or may adversely affect the price we receive for properties that we do sell, as prospective buyers may experience increased costs of debt financing or difficulties in obtaining debt financing. These events in the credit markets have also had an adverse effect on other financial markets in the United States, which may make it more difficult or costly for us to raise capital through the issuance of common stock, preferred stock or other equity securities. These disruptions in the financial market may have other adverse effects on us or the economy generally, which could cause our stock price to decline.

OFF-BALANCE SHEET ARRANGEMENTS

Except as disclosed in the notes to our condensed consolidated financial statements, we do not currently have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purposes entities, which typically are established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Further, except as disclosed in the notes to our condensed consolidated financial statements, we have not guaranteed any obligations of unconsolidated entities, nor do we have any commitments or intent to provide funding to any such entities. Accordingly, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships.

Our exchangeable senior notes provide for excess exchange value to be paid in shares of our common stock if our stock price exceeds a certain amount. For a further description of our exchangeable senior notes, refer to the consolidated financial statements and footnotes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2010 as filed with the Securities and Exchange Commission.

CONTRACTUAL OBLIGATIONS

The following table sets forth information on payments due by period as of June 30, 2011:

	Payments due by Period:
			Less Than						After
	Total		1 Year		1-3 Years		3-5 Years		5 Years
Operating leases	$	65,907	$	6,024	$	11,643	$	9,562	$	38,678
Notes payable, notes payable to trusts, exchangeable senior notes and lines of credit
Interest	319,264		54,848		93,094		58,961		112,361
Principal	1,191,576		243,369		215,440		403,526		329,241
Total contractual obligations	$	1,576,747	$	304,241	$	320,177	$	472,049	$	480,280

At June 30, 2011, the weighted-average interest rate for all fixed rate loans was 5.6%, and the weighted-average interest rate for all variable rate loans was 3.1%.

FINANCING STRATEGY

We will continue to employ leverage in our capital structure in amounts reviewed from time to time by our board of directors. Although our board of directors has not adopted a policy that limits the total amount of indebtedness that we may incur, we will consider a number of factors in evaluating our level of indebtedness from time to time, as well as the amount of such indebtedness that will be either fixed or variable rate. In making financing decisions, we will consider factors including but not limited to:

·the interest rate of the proposed financing;

·the extent to which the financing impacts flexibility in managing our properties;

29

·prepayment penalties and restrictions on refinancing;

·the purchase price of properties acquired with debt financing;

·long-term objectives with respect to the financing;

·target investment returns;

·the ability of particular properties, and our company as a whole, to generate cash flow sufficient to cover expected debt service payments;

·overall level of consolidated indebtedness;

·timing of debt and lease maturities;

·provisions that require recourse and cross-collateralization;

·corporate credit ratios including debt service coverage, debt to total capitalization and debt to undepreciated assets; and

·the overall ratio of fixed and variable rate debt.

Our indebtedness may be recourse, non-recourse or cross-collateralized. If the indebtedness is non-recourse, the collateral will be limited to the particular properties to which the indebtedness relates. In addition, we may invest in properties subject to existing loans collateralized by mortgages or similar liens on our properties, or may refinance properties acquired on a leveraged basis. We may use the proceeds from any borrowings to refinance existing indebtedness, to refinance investments, including the redevelopment of existing properties, for general working capital or to purchase additional interests in partnerships or joint ventures or for other purposes when we believe it is advisable.

We may from time to time seek to retire, repurchase or redeem our additional outstanding debt including our exchangeable senior notes as well as shares of common stock or other securities in open market purchases, privately negotiated transactions or otherwise. Such repurchases or redemptions, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material.

SEASONALITY

The self-storage business is subject to seasonal fluctuations. A greater portion of revenues and profits are realized from May through September. Historically, our highest level of occupancy has been at the end of July, while our lowest level of occupancy has been in late February and early March. Results for any quarter may not be indicative of the results that may be achieved for the full fiscal year.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

Market risk refers to the risk of loss from adverse changes in market prices and interest rates. Our future income, cash flows and fair values of financial instruments are dependent upon prevailing market interest rates.

Interest Rate Risk

Interest rate risk is highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control.

As of June 30, 2011, we had approximately $1,191,576 in total debt, of which $345,992 was subject to variable interest rates (excluding debt with interest rate swaps). If LIBOR were to increase or decrease by 100 basis points, the increase or decrease in interest expense on the variable rate debt (excluding variable rate debt with interest rate floors) would increase or decrease future earnings and cash flows by approximately $2,443 annually.

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Interest rate risk amounts were determined by considering the impact of hypothetical interest rates on our financial instruments. These analyses do not consider the effect of any change in overall economic activity that could occur. Further, in the event of a change of that magnitude, we may take actions to further mitigate our exposure to the change. However, due to the uncertainty of the specific actions that would be taken and their possible effects, these analyses assume no changes in our financial structure.

The fair values of our notes receivable, our fixed rate notes payable and notes payable to trusts and exchangeable senior notes are as follows:

	June 30, 2011				December 31, 2010
	Fair		Carrying		Fair		Carrying
	Value		Value		Value		Value
Note receivable from Preferred Operating Partnership unit holder	$	95,582	$	100,000	$	115,696	$	100,000
Fixed rate notes payable and notes payable to trusts	$	791,198	$	757,921	$	777,575	$	731,588
Exchangeable senior notes	$	92,383	$	87,663	$	118,975	$	87,663

ITEM 4. CONTROLS AND PROCEDURES

(1)           Disclosure Controls and Procedures

We maintain disclosure controls and procedures to ensure that information required to be disclosed in the reports we file pursuant to the Securities Exchange Act of 1934, as amended, or the Exchange Act are recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure based on the definition of “disclosure controls and procedures” in Rule 13a-15(e) of the Exchange Act. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can only provide a reasonable assurance of achieving the desired control objectives, and in reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

We have a disclosure committee that is responsible to ensure that all disclosures made by the Company to its security holders or to the investment community will be accurate and complete and fairly present the Company’s financial condition and results of operations in all material respects, and are made on a timely basis as required by applicable laws, regulations and stock exchange requirements.

We carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this report. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of the end of the period covered by this report.

(2)           Changes in internal control over financial reporting

There were no changes in our internal control over financial reporting (as such term is defined in Exchange Act Rule 13a-15(f)) that occurred during our most recent quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are involved in various litigation and proceedings in the ordinary course of business. We are not a party to any material litigation or legal proceedings, or to the best of our knowledge, any threatened litigation or legal proceedings, which, in the opinion of management, are expected to have a material adverse effect on our financial condition or results of operations either individually or in the aggregate.

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ITEM 1A. RISK FACTORS

There have been no material changes in our risk factors from those disclosed in our 2010 Annual Report on Form 10-K.

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

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. REMOVED AND RESERVED

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certifications of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101**	The following materials from Extra Space Storage Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011 are formatted in XBRL (eXtensible Business Reporting Language): (1) the Condensed Consolidated Balance Sheets, (2) the Condensed Consolidated Statements of Operations, (3) the Condensed Consolidated Statement of Equity, (4) the Condensed Consolidated Statements of Cash Flows and (5)  notes to these financial statements.

* These certifications are being furnished solely to accompany this quarterly report pursuant to 18 U.S.C. Section 1350, and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and are not to be incorporated by reference into any filing of Extra Space Storage Inc., whether made before or after the date hereof, regardless of any general incorporation language in such filing.  Signed originals of these certifications have been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

** Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Section 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under these sections.

32

SIGNATURES

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

	EXTRA SPACE STORAGE INC.
	Registrant
Date: August 8, 2011	/s/ Spencer F. Kirk
	Spencer F. Kirk
	Chairman and Chief Executive Officer
	(Principal Executive Officer)
Date: August 8, 2011	/s/ Kent W. Christensen
	Kent W. Christensen
	Executive Vice President and Chief Financial Officer
	(Principal Financial Officer)

33

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Spencer F. Kirk, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Extra Space Storage 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.

Date: August 8, 2011	By:	/s/ Spencer F. Kirk
	Name:	Spencer F. Kirk
	Title:	Chairman and Chief Executive Officer

1

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Kent W. Christensen, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Extra Space Storage 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.

Date: August 8, 2011	By:	/s/ Kent W. Christensen
	Name:	Kent W. Christensen
	Title:	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer and Chief Financial Officer
Pursuant to
18 U.S. C. Section 1350,
as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

The undersigned, the Chief Executive Officer of Extra Space Storage Inc. (the “Company”), hereby certifies to his knowledge on the date hereof, pursuant to 18 U.S.C. 1350(a), as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report on Form 10-Q for the quarter ended June 30, 2011 (the “Form 10-Q”), filed concurrently herewith by the Company, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Spencer F. Kirk
Name:	Spencer F. Kirk
Title:	Chairman and Chief Executive Officer
Date:	August 8, 2011

The undersigned, the Chief Financial Officer of Extra Space Storage Inc. (the “Company”), hereby certifies to his knowledge on the date hereof, pursuant to 18 U.S.C. 1350(a), as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report on Form 10-Q for the quarter ended June 30, 2011 (the “Form 10-Q”), filed concurrently herewith by the Company, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Kent W. Christensen
Name:	Kent W. Christensen
Title:	Executive Vice President and Chief Financial Officer
Date:	August 8, 2011

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Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Property rental	$ 64,300	$ 56,786	$ 125,790	$ 112,929
Management and franchise fees	6,144	5,653	12,111	11,205
Tenant reinsurance	7,596	6,338	14,620	12,230
Total revenues	78,040	68,777	152,521	136,364
Expenses:
Property operations	22,712	20,941	46,056	42,897
Tenant reinsurance	1,382	1,457	2,997	2,680
Unrecovered development and acquisition costs	1,570	142	1,819	212
General and administrative	12,432	11,229	24,090	22,285
Depreciation and amortization	14,092	12,202	27,677	24,621
Total expenses	52,188	45,971	102,639	92,695
Income from operations	25,852	22,806	49,882	43,669
Interest expense	(16,261)	(16,233)	(32,675)	(33,507)
Non-cash interest expense related to amortization of discount on exchangeable senior notes	(440)	(416)	(868)	(820)
Interest income	189	211	371	536
Interest income on note receivable from Preferred Operating Partnership unit holder	1,212	1,212	2,425	2,425
Income before equity in earnings of real estate ventures and income tax expense	10,552	7,580	19,135	12,303
Equity in earnings of real estate ventures	2,376	1,559	4,187	3,060
Income tax expense	(411)	(1,214)	(665)	(2,259)
Net income	12,517	7,925	22,657	13,104
Net income allocated to Preferred Operating Partnership noncontrolling interests	(1,552)	(1,507)	(3,084)	(2,986)
Net income allocated to Operating Partnership and other noncontrolling interests	(356)	(238)	(663)	(370)
Net income attributable to common stockholders	$ 10,609	$ 6,180	$ 18,910	$ 9,748
Net income per common share
Basic (in dollars per share)	$ 0.12	$ 0.07	$ 0.21	$ 0.11
Diluted (in dollars per share)	$ 0.12	$ 0.07	$ 0.21	$ 0.11
Weighted average number of shares
Basic (in shares)	91,439,042	87,367,967	89,733,518	87,122,064
Diluted (in shares)	96,010,848	92,304,831	94,336,141	92,026,150
Cash dividends paid per common share (in dollars per share)	$ 0.14	$ 0.10	$ 0.28	$ 0.20

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Condensed Consolidated Statement of Equity (USD $) In Thousands, except Share data	Total	Preferred Operating Partnership	Operating Partnership	Other Noncontrolling Interests	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Deficit	Accumulated Deficit	Comprehensive Income
Balances at Dec. 31, 2010	$ 939,071	$ 29,733	$ 26,803	$ 1,134	$ 876	$ 1,148,820	$ (5,787)	$ (262,508)
Balances (in shares) at Dec. 31, 2010	87,587,322				87,587,322
Increase (Decrease) in Stockholders' Equity
Issuance of common stock upon the exercise of options	10,505				8	10,497
Issuance of common stock upon the exercise of options (in shares)					816,806
Restricted stock grants issued	2				2
Restricted stock grants issued (in shares)					220,630
Restricted stock grants cancelled (in shares)					(10,519)
Issuance of common stock, net of offering costs	112,532				53	112,479
Issuance of common stock, net of offering costs (in shares)					5,335,423
Compensation expense related to stock-based awards	2,711					2,711
Redemption of Operating Partnership units for common stock			(2,344)		3	2,341
Redemption of Operating Partnership units for common stock (in shares)					293,641
Redemption of Operating Partnership units for cash	(271)		(271)
Comprehensive income:
Net income (loss)	22,657	3,084	670	(7)				18,910	22,657
Change in fair value of interest rate swap	(674)	(7)	(18)				(649)		(674)
Total comprehensive income	21,983								21,983
Tax effect from vesting of restricted stock grants and stock option exercises	2,091					2,091
Distributions to Operating Partnership units held by noncontrolling interests	(4,092)	(3,152)	(940)
Distributions to other noncontrolling interests	(13)			(13)
Dividends paid on common stock at $0.28 per share	(25,575)							(25,575)
Balances at Jun. 30, 2011	$ 1,058,944	$ 29,658	$ 23,900	$ 1,114	$ 942	$ 1,278,939	$ (6,436)	$ (269,173)
Balances (in shares) at Jun. 30, 2011	94,243,303				94,243,303

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PROPERTY ACQUISITIONS (Tables)

6 Months Ended

Jun. 30, 2011

PROPERTY ACQUISITIONS

Schedule of operating properties acquired

			Consideration Paid									Acquisition Date Fair Value
Property Location	Number of Properties	Date of Acquisition	Total Paid		Cash Paid		Loan Assumed		Net Liabilities/ (Assets) Assumed			Land		Building		Intangible		Closing costs - expensed			Source of Acquisition
Utah, Texas	2	4/1/2011	$	7,262	$	7,205	$	—	$	57		$	1,512	$	5,548	$	188	$	14		Affiliated joint venture
California	1	4/7/2011	8,207		8,150		—		57			2,211		5,829		163		4			Unrelated third party
Tennessee	1	4/15/2011	2,577		2,514		—		25			652		1,791		79		17			Unrelated third party
Colorado	1	5/25/2011	3,540		2,262		1,290		(12		)	407		3,077		61		(5		)	Unrelated third party
Virginia	1	5/26/2011	10,513		5,205		5,463		(154		)	932		9,349		202		31			Unrelated third party
New Jersey	1	6/2/2011	4,963		4,959		—		4			1,644		3,115		135		69			Affiliated joint venture
Colorado	1	6/10/2011	4,600		2,664		1,907		29			296		4,199		98		7			Unrelated third party
Nevada	1	6/22/2011	3,355		3,339		—		16			1,441		1,810		98		6			Unrelated third party
Ohio, Indiana, Kentucky	15	6/27/2011	39,773		39,387		—		386			13,587		24,991		903		292			Unrelated third party

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Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Real estate assets:
Net operating real estate assets	$ 2,038,827	$ 1,935,319
Real estate under development	6,800	37,083
Net real estate assets	2,045,627	1,972,402
Investments in real estate ventures	137,997	140,560
Cash and cash equivalents	35,187	46,750
Restricted cash	32,700	30,498
Receivables from related parties and affiliated real estate joint ventures	8,490	10,061
Other assets, net	50,856	48,197
Total assets	2,310,857	2,248,468
Liabilities, Noncontrolling Interests and Equity:
Notes payable	855,323	871,403
Notes payable to trusts	119,590	119,590
Exchangeable senior notes	87,663	87,663
Discount on exchangeable senior notes	(1,337)	(2,205)
Lines of credit	129,000	170,467
Accounts payable and accrued expenses	32,712	34,210
Other liabilities	28,962	28,269
Total liabilities	1,251,913	1,309,397
Commitments and contingencies
Extra Space Storage Inc. stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value, 300,000,000 shares authorized, 94,243,303 and 87,587,322 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively	942	876
Paid-in capital	1,278,939	1,148,820
Accumulated other comprehensive deficit	(6,436)	(5,787)
Accumulated deficit	(269,173)	(262,508)
Total Extra Space Storage Inc. stockholders' equity	1,004,272	881,401
Noncontrolling interest represented by Preferred Operating Partnership units, net of $100,000 note receivable	29,658	29,733
Noncontrolling interests in Operating Partnership	23,900	26,803
Other noncontrolling interests	1,114	1,134
Total noncontrolling interests and equity	1,058,944	939,071
Total liabilities, noncontrolling interests and equity	$ 2,310,857	$ 2,248,468

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SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2011

SEGMENT INFORMATION

Schedule of financial information of business segments

	June 30, 2011		December 31, 2010
Balance Sheet
Investment in real estate ventures
Rental operations	$	137,997	$	140,560
Total assets
Property management, acquisition and development	$	350,243	$	400,910
Rental operations	1,939,044		1,831,150
Tenant reinsurance	21,570		16,408
	$	2,310,857	$	2,248,468

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Statement of Operations
Total revenues
Property management, acquisition and development	$	6,144		$	5,653		$	12,111		$	11,205
Rental operations	64,300			56,786			125,790			112,929
Tenant reinsurance	7,596			6,338			14,620			12,230
	$	78,040		$	68,777		$	152,521		$	136,364
Operating expenses, including depreciation and amortization
Property management, acquisition and development	$	14,854		$	11,855		$	27,536		$	23,422
Rental operations	35,952			32,659			72,106			66,593
Tenant reinsurance	1,382			1,457			2,997			2,680
	$	52,188		$	45,971		$	102,639		$	92,695
Income (loss) from operations
Property management, acquisition and development	$	(8,710	)	$	(6,202	)	$	(15,425	)	$	(12,217	)
Rental operations	28,348			24,127			53,684			46,336
Tenant reinsurance	6,214			4,881			11,623			9,550
	$	25,852		$	22,806		$	49,882		$	43,669
Interest expense
Property management, acquisition and development	$	(823	)	$	(790	)	$	(1,605	)	$	(1,577	)
Rental operations	(15,878		)	(15,859		)	(31,938		)	(32,750		)
	$	(16,701	)	$	(16,649	)	$	(33,543	)	$	(34,327	)
Interest income
Property management, acquisition and development	$	187		$	209		$	366		$	531
Tenant reinsurance	2			2			5			5
	$	189		$	211		$	371		$	536
Interest income on note receivable from Preferred Operating Partnership unit holder
Property management, acquisition and development	$	1,212		$	1,212		$	2,425		$	2,425
Equity in earnings of real estate ventures
Rental operations	$	2,376		$	1,559		$	4,187		$	3,060
Income tax expense
Tenant reinsurance	$	(411	)	$	(1,214	)	$	(665	)	$	(2,259	)
Net income (loss)
Property management, acquisition and development	$	(8,134	)	$	(5,571	)	$	(14,239	)	$	(10,838	)
Rental operations	14,846			9,827			25,933			16,646
Tenant reinsurance	5,805			3,669			10,963			7,296
	$	12,517		$	7,925		$	22,657		$	13,104
Depreciation and amortization expense
Property management, acquisition and development	$	852		$	484		$	1,627		$	925
Rental operations	13,240			11,718			26,050			23,696
	$	14,092		$	12,202		$	27,677		$	24,621
Statement of Cash Flows
Acquisition of real estate assets
Property management, acquisition and development							$	(82,071	)	$	(16,460	)
Development and construction of real estate assets
Property management, acquisition and development							$	(4,494	)	$	(18,306	)

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VARIABLE INTERESTS

6 Months Ended

Jun. 30, 2011

VARIABLE INTERESTS

VARIABLE INTERESTS

6. VARIABLE INTERESTS

The Company has interests in two unconsolidated joint ventures with unrelated third parties which are variable interest entities (“VIEs” or the “VIE JVs”). The Company holds 18% and 39% of the equity interests in the two VIE JVs, and has 50% of the voting rights in each of the VIE JVs. Qualification as a VIE was based on the determination that the equity investments at risk for each of these joint ventures were not sufficient based on a qualitative and quantitative analysis performed by the Company. The Company performed a qualitative analysis for these joint ventures to determine which party was the primary beneficiary of each VIE. The Company determined that since the powers to direct the activities most significant to the economic performance of these entities are shared equally by the Company and its joint venture partners, there is no primary beneficiary. Accordingly, these interests are recorded using the equity method.

The VIE JVs each own a single self-storage property. These joint ventures are financed through a combination of (1) equity contributions from the Company and its joint venture partners, (2) mortgage notes payable and (3) payables to the Company. The payables to the Company consist of amounts owed for expenses paid on behalf of the joint ventures by the Company as manager and mortgage notes payable to the Company. The Company performs management services for the VIE JVs in exchange for a management fee of approximately 6% of cash collected by the properties. The Company has not provided financial or other support during the periods presented to the VIE JVs that it was not previously contractually obligated to provide.

The Company guarantees the mortgage notes payable for the VIE JVs. The Company’s maximum exposure to loss for these joint ventures as of June 30, 2011 is the total of the guaranteed loan balances, the payables due to the Company and the Company’s investment balances in the joint ventures. The Company believes that the risk of incurring a material loss as a result of having to perform on the loan guarantees is unlikely and therefore no liability has been recorded related to these guarantees. Also, repossessing and/or selling the self-storage facility and land that collateralize the loans could provide funds sufficient to reimburse the Company. Additionally, the Company believes the payables to the Company are collectible.

The following table compares the liability balance and the maximum exposure to loss related to the VIE JVs as of June 30, 2011:

						Balance of				Maximum
	Liability		Investment			Guaranteed		Payables to		Exposure
	Balance		Balance			Loan		Company		to Loss		Difference
Extra Space of Montrose Avenue LLC	$	—	$	1,214		$	4,838	$	2,469	$	8,521	$	(8,521	)
Extra Space of Sacramento One LLC	—		(862		)	4,307		6,094		9,539		(9,539		)
	$	—	$	352		$	9,145	$	8,563	$	18,060	$	(18,060	)

The Operating Partnership has three wholly-owned unconsolidated subsidiaries (“Trust,” “Trust II,” and “Trust III,” together, the “Trusts”) that have issued trust preferred securities to third parties and common securities to the Operating Partnership.  The proceeds from the sale of the preferred and common securities were loaned in the form of notes to the Operating Partnership.  The Trusts are VIEs because the holders of the equity investment at risk (the trust preferred securities) do not have the power to direct the activities of the entities that most significantly affect the entities’ economic performance because of their lack of voting or similar rights.  Because the Operating Partnership’s investment in the Trusts’ common securities was financed directly by the Trusts as a result of its loan of the proceeds to the Operating Partnership, that investment is not considered to be an equity investment at risk.  The Operating Partnership’s investment in the Trusts is not a variable interest because equity interests are variable interests only to the extent that the investment is considered to be at risk, and therefore the Operating Partnership cannot be the primary beneficiary of the Trusts.  Since the Company is not the primary beneficiary of the Trusts, they have not been consolidated.  A debt obligation has been recorded in the form of notes for the proceeds as discussed above, which are owed to the Trusts.  The Company has also included its investment in the Trusts’ common securities in other assets on the condensed consolidated balance sheets.

The Company has not provided financing or other support during the periods presented to the Trusts that it was not previously contractually obligated to provide.  The Company’s maximum exposure to loss as a result of its involvement with the Trusts is equal to the total amount of the notes discussed above less the amounts of the Company’s investments in the Trusts’ common securities.  The net amount is the notes payable that the Trusts owe to third parties for their investments in the Trusts’ preferred securities.

The following is a tabular comparison of the liabilities the Company has recorded as a result of its involvement with the Trusts to the maximum exposure to loss the Company is subject to as a result of such involvement as of June 30, 2011:

	Notes payable		Investment		Maximum
	to Trusts		Balance		exposure to loss		Difference
Trust	$	36,083	$	1,083	$	35,000	$	—
Trust II	42,269		1,269		41,000		—
Trust III	41,238		1,238		40,000		—
	$	119,590	$	3,590	$	116,000	$	—

The Company had no consolidated VIEs during the six months ended June 30, 2011 or 2010.

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COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Jun. 30, 2011

COMMITMENTS AND CONTINGENCIES

Schedule of guaranteed loans for unconsolidated joint ventures

			Guaranteed		Estimated
		Loan	Loan Amount		Fair Market
	Date of	Maturity	June 30,		Value of
	Guaranty	Date	2010		Assets
Extra Space of Montrose Avenue LLC	Dec-10	Dec-13	$	4,838	$	8,500
Extra Space of Sacramento One LLC	Apr-09	Apr-14	$	4,307	$	9,826
ESS Baltimore LLC	Nov-04	Feb-13	$	4,072	$	6,735

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SUBSEQUENT EVENTS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2011	Aug. 01, 2011 Acquisition Maryland 1 Property Member	Jul. 08, 2011 Acquisition Maryland 1 Property Member	Aug. 02, 2011 Acquisition Texas 1 property acquired
Subsequent event
Number of properties purchased	680	1	1	1
Total Consideration Paid		$ 7,250	$ 5,650	$ 2,400

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NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP (Details) (Operating Partnership, USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
Operating Partnership
Noncontrolling interest in operating partnership
Ownership interest held by entity (as a percent)	95.90%
Noncontrolling interest in operating partnership (as a percent)	4.10%
Common OP units outstanding (in units)	3,049,935
Number of days used as a denomination to determine the average closing price of common stock (in days)	10
Common OP units conversion basis	one-for-one basis
Ten day average closing stock price (in dollars per share)	$ 20.66
Cash consideration on redemption of common OP units	$ 63,012

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DERIVATIVES (Tables)

6 Months Ended

Jun. 30, 2011

DERIVATIVES

Schedule summarizing the terms of derivative financial instruments

Hedge Product	Hedge Type	Notional Amounts	Strike	Effective Dates	Maturity Dates
Cash Flow Hedge Swap Agreements	Cash Flow	$8,462 - $63,000	4.24% - 6.98%	2/1/2009 - 6/11/2010	6/30/2013 - 6/27/2016

Schedule of monthly interest payments recognized as an increase or decrease in interest expense

	Classification of	Three months ended June 30,				Six months ended June 30,
Type	Income (Expense)	2011		2010		2011		2010
Cash Flow Hedge Swap Agreements	Interest expense	(1,365	)	(640	)	(2,014	)	(1,272	)

Schedule of information relating to the gains recognized on the swap agreements

					Gain (loss)
					reclassified from
	Gain (loss)			Location of amounts	OCI
	recognized in OCI			reclassified from OCI	Six months ended
Type	June 30, 2011			into income	June 30, 2011
Cash Flow Hedge Swap Agreements	$	(674	)	Interest expense	$	(2,014	)

Schedule of balance sheet classification and carrying amounts of the interest rate swaps

	Asset (Liability) Derivatives
	June 30, 2011				December 31, 2010
Derivatives designated as hedging	Balance Sheet	Fair			Balance Sheet	Fair
instruments:	Location	Value			Location	Value
Cash Flow Hedge Swap Agreements	Other liabilities	$	(6,748	)	Other liabilities	$	(6,074	)

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STOCK OFFERING

6 Months Ended

Jun. 30, 2011

STOCK OFFERING

STOCK OFFERING

11.STOCK OFFERING

In May 2011, the Company closed a public stock offering of 5,335,423 shares of its common stock at an offering price of $21.16 per share.  The Company received gross proceeds of $112,898.  Transaction costs were $366 for net proceeds of $112,532.

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BASIS OF PRESENTATION

6 Months Ended

Jun. 30, 2011

BASIS OF PRESENTATION

BASIS OF PRESENTATION

2. BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements of the Company are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they may not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (including normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2011 are not necessarily indicative of results that may be expected for the year ended December 31, 2011. The condensed consolidated balance sheet as of December 31, 2010 has been derived from the Company’s audited financial statements as of that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. 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, 2010 as filed with the Securities and Exchange Commission.

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VARIABLE INTERESTS (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2011	Dec. 31, 2010
VARIABLE INTERESTS
Number of wholly-owned unconsolidated subsidiaries	3
Comparison of the liability balance and the maximum exposure to loss related to trusts
Notes payable to trusts	$ 119,590	$ 119,590
The Trusts
Comparison of the liability balance and the maximum exposure to loss related to trusts
Notes payable to trusts	119,590
Investment balance	3,590
Maximum exposure to loss	116,000
Trust
Comparison of the liability balance and the maximum exposure to loss related to trusts
Notes payable to trusts	36,083
Investment balance	1,083
Maximum exposure to loss	35,000
Trust II
Comparison of the liability balance and the maximum exposure to loss related to trusts
Notes payable to trusts	42,269
Investment balance	1,269
Maximum exposure to loss	41,000
Trust III
Comparison of the liability balance and the maximum exposure to loss related to trusts
Notes payable to trusts	41,238
Investment balance	1,238
Maximum exposure to loss	$ 40,000

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NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS

6 Months Ended

Jun. 30, 2011

NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS

NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS

8. NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS

On June 15, 2007, the Operating Partnership entered into a Contribution Agreement with various limited partnerships affiliated with AAAAA Rent-A-Space to acquire ten self-storage facilities (the “Properties”) in exchange for 989,980 Preferred OP units of the Operating Partnership. The self-storage facilities are located in California and Hawaii.

On June 25, 2007, the Operating Partnership loaned the holders of the Preferred OP units $100,000. The note receivable bears interest at 4.85% and is due September 1, 2017. The loan is secured by the borrower’s Preferred OP units. The holders of the Preferred OP units can convert up to 114,500 Preferred OP units prior to the maturity date of the loan. If any redemption in excess of 114,500 Preferred OP units occurs prior to the maturity date, the holder of the Preferred OP units is required to repay the loan as of the date of that Preferred OP unit redemption. Preferred OP units are shown on the balance sheet net of the $100,000 loan because the borrower under the loan receivable is also the holder of the Preferred OP units.

The Operating Partnership entered into a Second Amended and Restated Agreement of Limited Partnership (as subsequently amended, the “Partnership Agreement”) which provides for the designation and issuance of the Preferred OP units. The Preferred OP units will have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

Under the Partnership Agreement, Preferred OP units in the amount of $115,000 bear a fixed priority return of 5% and have a fixed liquidation value of $115,000. The remaining balance participates in distributions with, and has a liquidation value equal to, that of the common OP units. The Preferred OP units became redeemable at the option of the holder on September 1, 2008, which redemption obligation may be satisfied, at the Company’s option, in cash or shares of its common stock.

GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity.  It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions.  If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the Preferred OP units and classifies the noncontrolling interest represented by the Preferred OP units as stockholders’ equity in the accompanying condensed consolidated balance sheets.  The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the condensed consolidated balance sheets.  Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.

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COMMITMENTS AND CONTINGENCIES

6 Months Ended

Jun. 30, 2011

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

13.COMMITMENTS AND CONTINGENCIES

The Company has guaranteed loans for unconsolidated joint ventures as follows:

			Guaranteed		Estimated
		Loan	Loan Amount		Fair Market
	Date of	Maturity	June 30,		Value of
	Guaranty	Date	2010		Assets
Extra Space of Montrose Avenue LLC	Dec-10	Dec-13	$	4,838	$	8,500
Extra Space of Sacramento One LLC	Apr-09	Apr-14	$	4,307	$	9,826
ESS Baltimore LLC	Nov-04	Feb-13	$	4,072	$	6,735

If the joint ventures default on the loans, the Company may be forced to repay the loans. Repossessing and/or selling the self-storage facilities and land that collateralizes the loans could provide funds sufficient to reimburse the Company. The Company has recorded no liability in relation to these guarantees as of June 30, 2011, as the fair value of the guarantees was not material. The Company believes the risk of incurring a material loss as a result of having to perform on these guarantees is unlikely.

The Company has been involved in routine litigation arising in the ordinary course of business. As of June 30, 2011, the Company was not involved in any material litigation nor, to its knowledge, was any material litigation threatened against it which, in the opinion of management, is expected to have a material adverse effect on the Company’s financial condition or results of operations.

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NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

6 Months Ended

Jun. 30, 2011

NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

9. NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

The Company’s interest in its properties is held through the Operating Partnership. ESS Holding Business Trust I, a wholly owned subsidiary of the Company, is the sole general partner of the Operating Partnership. The Company, through ESS Holding Business Trust II, a wholly owned subsidiary of the Company, is also a limited partner of the Operating Partnership. Between its general partner and limited partner interests, the Company held a 95.9% majority ownership interest therein as of June 30, 2011. The remaining ownership interests in the Operating Partnership (including Preferred OP units) of 4.1% are held by certain former owners of assets acquired by the Operating Partnership.  As of June 30, 2011, the Operating Partnership had 3,049,935 common OP units outstanding.

The noncontrolling interest in the Operating Partnership represents common OP units that are not owned by the Company. In conjunction with the formation of the Company and as a result of subsequent acquisitions, certain persons and entities contributing interests in properties to the Operating Partnership received limited partnership units in the form of either OP units or Contingent Conversion Units. Limited partners who received OP units in the formation transactions or in exchange for contributions for interests in properties have the right to require the Operating Partnership to redeem part or all of their common OP units for cash based upon the fair market value of an equivalent number of shares of the Company’s common stock (ten-day average) at the time of the redemption. Alternatively, the Company may, at its option, elect to acquire those OP units in exchange for shares of its common stock on a one-for-one basis, subject to anti-dilution adjustments provided in the Partnership Agreement.  The ten-day average closing stock price at June 30, 2011 was $20.66 and there were 3,049,935 common OP units outstanding. Assuming that all of the unit holders exercised their right to redeem all of their common OP units on June 30, 2011 and the Company elected to pay the noncontrolling members cash, the Company would have paid $63,012 in cash consideration to redeem the OP units.

GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity.  It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions.  If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the common OP units and classifies the noncontrolling interest in the Operating Partnership as stockholders’ equity in the accompanying condensed consolidated balance sheets.  The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the condensed consolidated balance sheets.  Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount, or (2) its redemption value as of the end of the period in which the determination is made.

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NET INCOME PER COMMON SHARE (Details 2) (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
NET INCOME PER COMMON SHARE
Anti-dilutive share options excluded from computation of earnings per share (in shares)	122,321	1,902,695	99,482	2,387,550
Computation of net income per common share
Net income attributable to common stockholders	$ 10,609	$ 6,180	$ 18,910	$ 9,748
Add: Income allocated to noncontrolling interest - Preferred Operating Partnership and Operating Partnership	1,910	1,762	3,754	3,390
Subtract: Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership	(1,437)	(1,437)	(2,875)	(2,875)
Net income for diluted computations	$ 11,082	$ 6,505	$ 19,789	$ 10,263
Weighted average common shares outstanding:
Average number of common shares outstanding - basic (in shares)	91,439,042	87,367,967	89,733,518	87,122,064
Operating Partnership units (in shares)	3,049,935	3,627,368	3,049,935	3,627,368
Preferred Operating Partnership units (in shares)	989,980	989,980	989,980	989,980
Dilutive and cancelled stock options (in shares)	531,891	319,516	562,708	286,738
Average number of common shares outstanding - diluted (in shares)	96,010,848	92,304,831	94,336,141	92,026,150
Net income per common share
Basic (in dollars per share)	$ 0.12	$ 0.07	$ 0.21	$ 0.11
Diluted (in dollars per share)	$ 0.12	$ 0.07	$ 0.21	$ 0.11

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DERIVATIVES

6 Months Ended

Jun. 30, 2011

DERIVATIVES

DERIVATIVES

7. DERIVATIVES

GAAP requires the recognition of all derivative instruments as either assets or liabilities on the balance sheet at fair value.  The accounting for changes in fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship.  A company must designate each qualifying hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in foreign operations.

The Company is exposed to certain risks relating to its ongoing business operations.  The primary risk managed by using derivative instruments is interest rate risk.  Interest rate swaps are entered into to manage interest rate risk associated with the Company’s fixed and variable-rate borrowings.  The Company designates certain interest rate swaps as cash flow hedges of variable-rate borrowings and the remainder as fair value hedges of fixed-rate borrowings.

For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in the statement of operations.  For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in other comprehensive income, outside of earnings, and subsequently reclassified to earnings when the hedged transaction affects earnings.

The following table summarizes the terms of the Company’s derivative financial instruments at June 30, 2011:

Hedge Product	Hedge Type	Notional Amounts	Strike	Effective Dates	Maturity Dates
Cash Flow Hedge Swap Agreements	Cash Flow	$8,462 - $63,000	4.24% - 6.98%	2/1/2009 - 6/11/2010	6/30/2013 - 6/27/2016

Monthly interest payments were recognized as an increase or decrease in interest expense as follows:

	Classification of	Three months ended June 30,				Six months ended June 30,
Type	Income (Expense)	2011		2010		2011		2010
Cash Flow Hedge Swap Agreements	Interest expense	(1,365	)	(640	)	(2,014	)	(1,272	)

Information relating to the gains recognized on the interest rate swap agreements is as follows:

					Gain (loss)
					reclassified from
	Gain (loss)			Location of amounts	OCI
	recognized in OCI			reclassified from OCI	Six months ended
Type	June 30, 2011			into income	June 30, 2011
Cash Flow Hedge Swap Agreements	$	(674	)	Interest expense	$	(2,014	)

The interest rate swap agreements were highly effective for the three and six months ended June 30, 2011.  The gain (loss) reclassified from other comprehensive income (“OCI”) in the preceding table represents the effective portion of the Company’s cash flow hedges reclassified from OCI to interest expense during the six months ended June 30, 2011.

The balance sheet classification and carrying amounts of the derivative instruments are as follows:

	Asset (Liability) Derivatives
	June 30, 2011				December 31, 2010
Derivatives designated as hedging	Balance Sheet	Fair			Balance Sheet	Fair
instruments:	Location	Value			Location	Value
Cash Flow Hedge Swap Agreements	Other liabilities	$	(6,748	)	Other liabilities	$	(6,074	)

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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 22,657	$ 13,104
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,677	24,621
Amortization of deferred financing costs	2,233	2,347
Non-cash interest expense related to amortization of discount on exchangeable senior notes	868	820
Compensation expense related to stock-based awards	2,711	2,402
Distributions from real estate ventures in excess of earnings	5,169	3,095
Changes in operating assets and liabilities:
Receivables from related parties and affiliated real estate joint ventures	1,393	2,767
Other assets	4,960	(65)
Accounts payable and accrued expenses	(1,498)	(1,193)
Other liabilities	(977)	(1,827)
Net cash provided by operating activities	65,193	46,071
Cash flows from investing activities:
Acquisition of real estate assets	(82,071)	(16,460)
Development and construction of real estate assets	(4,494)	(18,306)
Proceeds from sale of properties to joint venture		15,750
Investments in real estate ventures	(3,405)	(9,059)
Change in restricted cash	(2,202)	5,509
Purchase of equipment and fixtures	(3,463)	(1,115)
Net cash used in investing activities	(95,635)	(23,681)
Cash flows from financing activities:
Proceeds from the sale of common stock	112,532
Proceeds from notes payable and lines of credit	264,686	104,093
Principal payments on notes payable and lines of credit	(335,693)	(210,647)
Deferred financing costs	(3,200)	(1,884)
Redemption of Operating Partnership units held by noncontrolling interest	(271)
Net proceeds from exercise of stock options	10,505	3,705
Dividends paid on common stock	(25,575)	(17,455)
Distributions to noncontrolling interests (Operating Partnership and other)	(4,105)	(3,798)
Net cash provided by (used in) financing activities	18,879	(125,986)
Net decrease in cash and cash equivalents	(11,563)	(103,596)
Cash and cash equivalents, beginning of the period	46,750	131,950
Cash and cash equivalents, end of the period	35,187	28,354
Supplemental schedule of cash flow information
Interest paid, net of amounts capitalized	31,533	31,723
Deconsolidation of joint ventures due to application of Accounting Standards Codification 810:
Real estate assets, net		(42,739)
Investments in real estate ventures		404
Receivables from related parties and affiliated real estate joint ventures		21,142
Other assets and other liabilities		(51)
Notes payable		21,348
Other noncontrolling interests		(104)
Redemption of Operating Partnership units held by noncontrolling interests for common stock	2,344
Acquisitions of real estate assets
Real estate assets, net	8,660	6,475
Notes payable	$ (8,660)	$ (6,475)

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FAIR VALUE DISCLOSURES

6 Months Ended

Jun. 30, 2011

FAIR VALUE DISCLOSURES

FAIR VALUE DISCLOSURES

3. FAIR VALUE DISCLOSURES

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table provides information for each major category of assets and liabilities that are measured at fair value on a recurring basis:

				Fair Value Measurements at Reporting Date Using
Description	June 30, 2011			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Other liabilities - Cash Flow Hedge Swap Agreements	$	(6,748	)	$	—	$	(6,748	)	$	—

The fair value of our derivatives is based on quoted market prices of similar instruments from various banking institutions or an independent third party provider for similar instruments. In determining the fair value, we consider our non-performance risk and that of our counterparties.

There were no transfers of assets and liabilities between Level 1 and Level 2 during the six months ended June 30, 2011.  The Company did not have any significant assets or liabilities that are re-measured on a recurring basis using significant unobservable inputs (Level 3) for the six months ended June 30, 2011.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Long-lived assets held for use are evaluated for impairment when events or circumstances indicate there may be impairment.  The Company reviews each self-storage facility at least annually to determine if any such events or circumstances have occurred or exist.  The Company focuses on facilities where occupancy and/or rental income have decreased by a significant amount.  For these facilities, the Company determines whether the decrease is temporary or permanent and whether the facility will likely recover the lost occupancy and/or revenue in the short term.  In addition, the Company carefully reviews facilities in the lease-up stage and compares actual operating results to original projections.

When the Company determines that an event that may indicate impairment has occurred, the Company compares the carrying value of the related long-lived assets to the undiscounted future net operating cash flows attributable to the assets.  An impairment loss is recorded if the net carrying value of the assets exceeds the undiscounted future net operating cash flows attributable to the assets.  The impairment loss recognized equals the excess of net carrying value over the related fair value of the assets.

When real estate assets are identified by management as held for sale, the Company discontinues depreciating the assets and estimates the fair value of the assets, net of selling costs.  If the estimated fair value, net of selling costs, of the assets that have been identified as held for sale is less than the net carrying value of the assets, then a valuation allowance is established.  The operations of assets held for sale or sold during the period are generally presented as discontinued operations for all periods presented.

The Company assesses whether there are any indicators that the value of its investments in unconsolidated real estate ventures may be impaired annually and when events or circumstances indicate there may be impairment.  An investment is impaired if the Company’s estimate of the fair value of the investment is less than its carrying value.  To the extent impairment has occurred, and is considered to be other than temporary, the loss is measured as the excess of the carrying amount over the fair value of the investment.

In connection with the Company’s acquisition of self-storage facilities, the purchase price is allocated to the tangible and intangible assets and liabilities acquired based on their fair values, which are estimated using significant unobservable inputs. The value of the tangible assets, consisting of land and buildings, is determined as if vacant. Intangible assets, which represent the value of existing tenant relationships, are recorded at their fair values based on the avoided cost to replace the current leases. The Company measures the value of tenant relationships based on the rent lost due to the amount of time required to replace existing customers, which is based on the Company’s historical experience with turnover in its facilities. Debt assumed as part of an acquisition is recorded at fair value based on current interest rates compared to contractual rates. Acquisition-related transaction costs are expensed as incurred.

Fair Value of Financial Instruments

The carrying values of cash and cash equivalents, restricted cash, receivables, other financial instruments included in other assets, accounts payable and accrued expenses, variable rate notes payable and notes payable to trusts, lines of credit and other liabilities reflected in the condensed consolidated balance sheets at June 30, 2011 and December 31, 2010 approximate fair value. The fair values of the Company’s notes receivable, fixed rate notes payable and notes payable to trusts and exchangeable senior notes are as follows:

	June 30, 2011				December 31, 2010
	Fair		Carrying		Fair		Carrying
	Value		Value		Value		Value
Note receivable from Preferred Operating Partnership unit holder	$	95,582	$	100,000	$	115,696	$	100,000
Fixed rate notes payable and notes payable to trusts	$	791,198	$	757,921	$	777,575	$	731,588
Exchangeable senior notes	$	92,383	$	87,663	$	118,975	$	87,663

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STOCK OFFERING (Details) (USD $) In Thousands, except Share data	1 Months Ended	6 Months Ended
	May 31, 2011	Jun. 30, 2011	May 17, 2011
STOCK OFFERING
Issuance of common stock (in shares)	5,335,423
Price per share of common stock issued during period (in dollars per share)			$ 21.16
Gross proceeds from issuance of common stock	$ 112,898
Transaction costs of stock issuance	366
Net proceeds from issuance of common stock	$ 112,532	$ 112,532

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NET INCOME PER COMMON SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2011	Dec. 31, 2010
Net income per common share
Exchangeable senior notes	$ 87,663	$ 87,663
Operating Partnership
Net income per common share
Exchangeable senior notes	87,663
Percentage of exchange price used to determine the minimum stock price that must be exceeded for exchangeable notes to be exchanged (as a percent)	130.00%
Exchangeable senior notes exchange price per share (in dollars per share)	$ 23.45
Preferred Operating Partnership
Net income per common share
Exchangeable preferred operating partnership units settled in cash, minimum	$ 115,000

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NET INCOME PER COMMON SHARE

6 Months Ended

Jun. 30, 2011

NET INCOME PER COMMON SHARE

NET INCOME PER COMMON SHARE

4. NET INCOME PER COMMON SHARE

Basic net income per common share is computed by dividing net income by the weighted average common shares outstanding, including unvested share based payment awards that contain a non-forfeitable right to dividends or dividend equivalents. Diluted earnings per common share measures the performance of the Company over the reporting period while giving effect to all potential common shares that were dilutive and outstanding during the period. The denominator includes the weighted average number of basic shares and the number of additional common shares that would have been outstanding if the potential common shares that were dilutive had been issued and is calculated using either the treasury stock or if-converted method. Potential common shares are securities (such as options, warrants, convertible debt, exchangeable Series A Participating Redeemable Preferred Operating Partnership units (“Preferred OP units”) and exchangeable Operating Partnership units (“OP units”)) that do not have a current right to participate in earnings but could do so in the future by virtue of their option or conversion right. In computing the dilutive effect of convertible securities, net income is adjusted to add back any changes in earnings in the period associated with the convertible security. The numerator also is adjusted for the effects of any other non-discretionary changes in income or loss that would result from the assumed conversion of those potential common shares. In computing diluted earnings per share, only potential common shares that are dilutive, those that reduce earnings per share, are included.

The Company’s Operating Partnership has $87,663 of exchangeable senior notes issued and outstanding as of June 30, 2011 that also can potentially have a dilutive effect on its earnings per share calculations. The exchangeable senior notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the exchangeable senior notes. The exchangeable senior notes are not exchangeable unless the price of the Company’s common stock is greater than or equal to 130% of the applicable exchange price for a specified period during a quarter, or unless certain other events occur. The exchange price was $23.45 per share at June 30, 2011, and could change over time as described in the indenture. The price of the Company’s common stock did not exceed 130% of the exchange price for the specified period of time during the second quarter of 2011; therefore holders of the exchangeable senior notes may not elect to convert them during the third quarter of 2011.

The Company has irrevocably agreed to pay only cash for the accreted principal amount of the exchangeable senior notes relative to its exchange obligations, but has retained the right to satisfy the exchange obligations in excess of the accreted principal amount in cash and/or common stock. Though the Company has retained that right, Accounting Standards Codification (“ASC”) 260, “Earnings Per Share,” requires an assumption that shares will be used to pay the exchange obligations in excess of the accreted principal amount, and requires that those shares be included in the Company’s calculation of weighted average common shares outstanding for the diluted earnings per share computation. No shares related to the exchangeable senior notes were included in the computations for the three and six month periods ended June 30, 2011 or 2010 because there was no excess over the accreted principal for these periods.

For the purposes of computing the diluted impact on earnings per share of the potential conversion of Preferred OP units into common shares, where the Company has the option to redeem in cash or shares and where the Company has stated the positive intent and ability to settle at least $115,000 of the instrument in cash (or net settle a portion of the Preferred OP units against the related outstanding note receivable), only the amount of the instrument in excess of $115,000 is considered in the calculation of shares contingently issuable for the purposes of computing diluted earnings per share as allowed by ASC 260-10-45-46.

For the three months ended June 30, 2011 and 2010, options to purchase 122,321 and 1,902,695 shares of common stock, and for the six months ended June 30, 2011 and 2010, 99,482 and 2,387,550 shares of common stock, respectively, were excluded from the computation of earnings per share as their effect would have been anti-dilutive.  All restricted stock grants have been included in basic and diluted shares outstanding because such shares earn a non-forfeitable dividend and carry voting rights.

The computation of net income per common share is as follows:

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Net income attributable to common stockholders	$	10,609		$	6,180		$	18,910		$	9,748
Add: Income allocated to noncontrolling interest - Preferred Operating Partnership and Operating Partnership	1,910			1,762			3,754			3,390
Subtract: Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership	(1,437		)	(1,437		)	(2,875		)	(2,875		)
Net income for diluted computations	$	11,082		$	6,505		$	19,789		$	10,263
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	91,439,042			87,367,967			89,733,518			87,122,064
Operating Partnership units	3,049,935			3,627,368			3,049,935			3,627,368
Preferred Operating Partnership units	989,980			989,980			989,980			989,980
Dilutive and cancelled stock options	531,891			319,516			562,708			286,738
Average number of common shares outstanding - diluted	96,010,848			92,304,831			94,336,141			92,026,150
Net income per common share
Basic	$	0.12		$	0.07		$	0.21		$	0.11
Diluted	$	0.12		$	0.07		$	0.21		$	0.11

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COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Thousands	Jun. 30, 2011
Extra Space of Montrose Avenue LLC
Commitments And Contingencies
Guaranteed loan amount	$ 4,838
Estimated fair market value of assets	8,500
Extra Space of Sacramento One LLC
Commitments And Contingencies
Guaranteed loan amount	4,307
Estimated fair market value of assets	9,826
ESS Baltimore LLC
Commitments And Contingencies
Guaranteed loan amount	4,072
Estimated fair market value of assets	$ 6,735

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ORGANIZATION (Details)	6 Months Ended
	Jun. 30, 2011
ORGANIZATION
Number of operating storage facilities in which the entity has equity interests	680
Number of properties owned by franchisees and third parties	180
Number of operating properties owned and/or managed	860
Number of states in which operating storage facilities are located	34
Number of reportable segments	3
Number of development projects in process	1
Maximum percentage of rental income accounted for by any single tenant (as a percent)	5.00%

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PROPERTY ACQUISITIONS (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	6 Months Ended
	Jan. 31, 2011	Jun. 30, 2011	Jun. 30, 2010
Property Acquisitions
Loan Assumed		$ 8,660	$ 6,475
Cash paid to obtain joint venture partner's equity interests in joint venture	320
Utah, Texas, 2 Properties Acquired 4/1/2011
Property Acquisitions
Number of Properties		2
Total Consideration Paid		7,262
Cash Consideration Paid		7,205
Net Liabilities (Assets) Assumed		57
Acquisition Date Fair Value, Land		1,512
Acquisition Date Fair Value, Building		5,548
Acquisition Date Fair Value, Intangible		188
Closing costs - expensed		14
California, 1 Property Acquired 2011/04/07
Property Acquisitions
Number of Properties		1
Total Consideration Paid		8,207
Cash Consideration Paid		8,150
Net Liabilities (Assets) Assumed		57
Acquisition Date Fair Value, Land		2,211
Acquisition Date Fair Value, Building		5,829
Acquisition Date Fair Value, Intangible		163
Closing costs - expensed		4
Tennessee, 1 Property Acquired 2011/04/15
Property Acquisitions
Number of Properties		1
Total Consideration Paid		2,577
Cash Consideration Paid		2,514
Net Liabilities (Assets) Assumed		25
Acquisition Date Fair Value, Land		652
Acquisition Date Fair Value, Building		1,791
Acquisition Date Fair Value, Intangible		79
Closing costs - expensed		17
Colorado, 1 Property Acquired 2011/05/25
Property Acquisitions
Number of Properties		1
Total Consideration Paid		3,540
Cash Consideration Paid		2,262
Loan Assumed		1,290
Net Liabilities (Assets) Assumed		(12)
Acquisition Date Fair Value, Land		407
Acquisition Date Fair Value, Building		3,077
Acquisition Date Fair Value, Intangible		61
Closing costs - expensed		(5)
Virginia, 1 Property Acquired 2011/05/26
Property Acquisitions
Number of Properties		1
Total Consideration Paid		10,513
Cash Consideration Paid		5,205
Loan Assumed		5,463
Net Liabilities (Assets) Assumed		(154)
Acquisition Date Fair Value, Land		932
Acquisition Date Fair Value, Building		9,349
Acquisition Date Fair Value, Intangible		202
Closing costs - expensed		31
New Jersey, 1 Property Acquired 2011/06/02
Property Acquisitions
Number of Properties		1
Total Consideration Paid		4,963
Cash Consideration Paid		4,959
Net Liabilities (Assets) Assumed		4
Acquisition Date Fair Value, Land		1,644
Acquisition Date Fair Value, Building		3,115
Acquisition Date Fair Value, Intangible		135
Closing costs - expensed		69
Colorado, 1 Property Acquired 2011/06/10
Property Acquisitions
Number of Properties		1
Total Consideration Paid		4,600
Cash Consideration Paid		2,664
Loan Assumed		1,907
Net Liabilities (Assets) Assumed		29
Acquisition Date Fair Value, Land		296
Acquisition Date Fair Value, Building		4,199
Acquisition Date Fair Value, Intangible		98
Closing costs - expensed		7
Nevada, 1 Property Acquired 2011/06/22
Property Acquisitions
Number of Properties		1
Total Consideration Paid		3,355
Cash Consideration Paid		3,339
Net Liabilities (Assets) Assumed		16
Acquisition Date Fair Value, Land		1,441
Acquisition Date Fair Value, Building		1,810
Acquisition Date Fair Value, Intangible		98
Closing costs - expensed		6
Ohio, Indiana , Kentucky, 15 Properties Acquired 2011/06/27
Property Acquisitions
Number of Properties		15
Total Consideration Paid		39,773
Cash Consideration Paid		39,387
Net Liabilities (Assets) Assumed		386
Acquisition Date Fair Value, Land		13,587
Acquisition Date Fair Value, Building		24,991
Acquisition Date Fair Value, Intangible		903
Closing costs - expensed		$ 292

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SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Segment Information
Number of reportable segments			3
Balance Sheet
Investments in real estate ventures	$ 137,997		$ 137,997		$ 140,560
Total assets	2,310,857		2,310,857		2,248,468
Statement of Operations
Total revenues	78,040	68,777	152,521	136,364
Operating expenses, including depreciation and amortization	52,188	45,971	102,639	92,695
Income (loss) from operations	25,852	22,806	49,882	43,669
Interest expense	(16,701)	(16,649)	(33,543)	(34,327)
Interest income	189	211	371	536
Interest income on note receivable from Preferred Operating Partnership unit holder	1,212	1,212	2,425	2,425
Equity in earnings of real estate ventures	2,376	1,559	4,187	3,060
Income tax expense	(411)	(1,214)	(665)	(2,259)
Net income (loss)	12,517	7,925	22,657	13,104
Depreciation and amortization expense
Total depreciation and amortization expense	14,092	12,202	27,677	24,621
Statement of Cash Flows
Acquisition of real estate assets			(82,071)	(16,460)
Development and construction of real estate assets			(4,494)	(18,306)
Property management, acquisition and development
Balance Sheet
Total assets	350,243		350,243		400,910
Statement of Operations
Total revenues	6,144	5,653	12,111	11,205
Operating expenses, including depreciation and amortization	14,854	11,855	27,536	23,422
Income (loss) from operations	(8,710)	(6,202)	(15,425)	(12,217)
Interest expense	(823)	(790)	(1,605)	(1,577)
Interest income	187	209	366	531
Interest income on note receivable from Preferred Operating Partnership unit holder	1,212	1,212	2,425	2,425
Net income (loss)	(8,134)	(5,571)	(14,239)	(10,838)
Depreciation and amortization expense
Total depreciation and amortization expense	852	484	1,627	925
Statement of Cash Flows
Acquisition of real estate assets			(82,071)	(16,460)
Development and construction of real estate assets			(4,494)	(18,306)
Rental operations
Balance Sheet
Investments in real estate ventures	137,997		137,997		140,560
Total assets	1,939,044		1,939,044		1,831,150
Statement of Operations
Total revenues	64,300	56,786	125,790	112,929
Operating expenses, including depreciation and amortization	35,952	32,659	72,106	66,593
Income (loss) from operations	28,348	24,127	53,684	46,336
Interest expense	(15,878)	(15,859)	(31,938)	(32,750)
Equity in earnings of real estate ventures	2,376	1,559	4,187	3,060
Net income (loss)	14,846	9,827	25,933	16,646
Depreciation and amortization expense
Total depreciation and amortization expense	13,240	11,718	26,050	23,696
Tenant reinsurance
Balance Sheet
Total assets	21,570		21,570		16,408
Statement of Operations
Total revenues	7,596	6,338	14,620	12,230
Operating expenses, including depreciation and amortization	1,382	1,457	2,997	2,680
Income (loss) from operations	6,214	4,881	11,623	9,550
Interest income	2	2	5	5
Income tax expense	(411)	(1,214)	(665)	(2,259)
Net income (loss)	$ 5,805	$ 3,669	$ 10,963	$ 7,296

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FAIR VALUE DISCLOSURES (Details 2) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Fair Value of Financial Instruments
Note receivable from Preferred Operating Partnership unit holder	$ 100,000	$ 100,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value of Financial Instruments
Note receivable from Preferred Operating Partnership unit holder	95,582	115,696
Fixed rate notes payable and notes payable to trusts	791,198	777,575
Exchangeable senior notes	92,383	118,975
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value of Financial Instruments
Note receivable from Preferred Operating Partnership unit holder	100,000	100,000
Fixed rate notes payable and notes payable to trusts	757,921	731,588
Exchangeable senior notes	$ 87,663	$ 87,663

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SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2011

SEGMENT INFORMATION

SEGMENT INFORMATION

12.SEGMENT INFORMATION

The Company operates in three distinct segments: (1) property management, acquisition and development; (2) rental operations; and (3) tenant reinsurance.  Financial information for the Company’s business segments is set forth below:

	June 30, 2011		December 31, 2010
Balance Sheet
Investment in real estate ventures
Rental operations	$	137,997	$	140,560
Total assets
Property management, acquisition and development	$	350,243	$	400,910
Rental operations	1,939,044		1,831,150
Tenant reinsurance	21,570		16,408
	$	2,310,857	$	2,248,468

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Statement of Operations
Total revenues
Property management, acquisition and development	$	6,144		$	5,653		$	12,111		$	11,205
Rental operations	64,300			56,786			125,790			112,929
Tenant reinsurance	7,596			6,338			14,620			12,230
	$	78,040		$	68,777		$	152,521		$	136,364
Operating expenses, including depreciation and amortization
Property management, acquisition and development	$	14,854		$	11,855		$	27,536		$	23,422
Rental operations	35,952			32,659			72,106			66,593
Tenant reinsurance	1,382			1,457			2,997			2,680
	$	52,188		$	45,971		$	102,639		$	92,695
Income (loss) from operations
Property management, acquisition and development	$	(8,710	)	$	(6,202	)	$	(15,425	)	$	(12,217	)
Rental operations	28,348			24,127			53,684			46,336
Tenant reinsurance	6,214			4,881			11,623			9,550
	$	25,852		$	22,806		$	49,882		$	43,669
Interest expense
Property management, acquisition and development	$	(823	)	$	(790	)	$	(1,605	)	$	(1,577	)
Rental operations	(15,878		)	(15,859		)	(31,938		)	(32,750		)
	$	(16,701	)	$	(16,649	)	$	(33,543	)	$	(34,327	)
Interest income
Property management, acquisition and development	$	187		$	209		$	366		$	531
Tenant reinsurance	2			2			5			5
	$	189		$	211		$	371		$	536
Interest income on note receivable from Preferred Operating Partnership unit holder
Property management, acquisition and development	$	1,212		$	1,212		$	2,425		$	2,425
Equity in earnings of real estate ventures
Rental operations	$	2,376		$	1,559		$	4,187		$	3,060
Income tax expense
Tenant reinsurance	$	(411	)	$	(1,214	)	$	(665	)	$	(2,259	)
Net income (loss)
Property management, acquisition and development	$	(8,134	)	$	(5,571	)	$	(14,239	)	$	(10,838	)
Rental operations	14,846			9,827			25,933			16,646
Tenant reinsurance	5,805			3,669			10,963			7,296
	$	12,517		$	7,925		$	22,657		$	13,104
Depreciation and amortization expense
Property management, acquisition and development	$	852		$	484		$	1,627		$	925
Rental operations	13,240			11,718			26,050			23,696
	$	14,092		$	12,202		$	27,677		$	24,621
Statement of Cash Flows
Acquisition of real estate assets
Property management, acquisition and development							$	(82,071	)	$	(16,460	)
Development and construction of real estate assets
Property management, acquisition and development							$	(4,494	)	$	(18,306	)

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PROPERTY ACQUISITIONS

6 Months Ended

Jun. 30, 2011

PROPERTY ACQUISITIONS

PROPERTY ACQUISITIONS

5. PROPERTY ACQUISITIONS

The following table summarizes the Company’s acquisitions of operating properties for the six months ended June 30, 2011 and does not include improvements made to existing assets:

			Consideration Paid									Acquisition Date Fair Value
Property Location	Number of Properties	Date of Acquisition	Total Paid		Cash Paid		Loan Assumed		Net Liabilities/ (Assets) Assumed			Land		Building		Intangible		Closing costs - expensed			Source of Acquisition
Utah, Texas	2	4/1/2011	$	7,262	$	7,205	$	—	$	57		$	1,512	$	5,548	$	188	$	14		Affiliated joint venture
California	1	4/7/2011	8,207		8,150		—		57			2,211		5,829		163		4			Unrelated third party
Tennessee	1	4/15/2011	2,577		2,514		—		25			652		1,791		79		17			Unrelated third party
Colorado	1	5/25/2011	3,540		2,262		1,290		(12		)	407		3,077		61		(5		)	Unrelated third party
Virginia	1	5/26/2011	10,513		5,205		5,463		(154		)	932		9,349		202		31			Unrelated third party
New Jersey	1	6/2/2011	4,963		4,959		—		4			1,644		3,115		135		69			Affiliated joint venture
Colorado	1	6/10/2011	4,600		2,664		1,907		29			296		4,199		98		7			Unrelated third party
Nevada	1	6/22/2011	3,355		3,339		—		16			1,441		1,810		98		6			Unrelated third party
Ohio, Indiana, Kentucky	15	6/27/2011	39,773		39,387		—		386			13,587		24,991		903		292			Unrelated third party

On January 1, 2011, the Company paid $320 in cash to obtain its joint venture partners’ equity interests in a joint venture.  No gain or loss was recognized on this transaction.  The joint venture owned a single stabilized self-storage property located in Pennsylvania and was previously accounted for under the equity method.  This property is now wholly owned and consolidated by the Company.

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FAIR VALUE DISCLOSURES (Tables)

6 Months Ended

Jun. 30, 2011

FAIR VALUE DISCLOSURES

Schedule of assets and liabilities measured at fair value on a recurring basis

				Fair Value Measurements at Reporting Date Using
Description	June 30, 2011			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Other liabilities - Cash Flow Hedge Swap Agreements	$	(6,748	)	$	—	$	(6,748	)	$	—

Schedule of fair value of financial instruments

	June 30, 2011				December 31, 2010
	Fair		Carrying		Fair		Carrying
	Value		Value		Value		Value
Note receivable from Preferred Operating Partnership unit holder	$	95,582	$	100,000	$	115,696	$	100,000
Fixed rate notes payable and notes payable to trusts	$	791,198	$	757,921	$	777,575	$	731,588
Exchangeable senior notes	$	92,383	$	87,663	$	118,975	$	87,663

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OTHER NONCONTROLLING INTERESTS (Details) (Other noncontrolling interests.)	Jun. 30, 2011
Other noncontrolling interests.
Other Noncontrolling Interests
Number of consolidated self-storage properties	3
Number of consolidated self-storage properties under development	2
Number of consolidated self-storage properties under lease-up stage	1
Ownership interests of third party owners, low end of range (as a percent)	5.00%
Ownership interests of third party owners, high end of range (as a percent)	27.60%

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FAIR VALUE DISCLOSURES (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Cash Flow Hedge Swap Agreements	$ (6,748)	$ (6,074)
Recurring basis | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Cash Flow Hedge Swap Agreements	(6,748)
Recurring basis | Fair Value, Inputs, Level 2 [Member]
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Cash Flow Hedge Swap Agreements	$ (6,748)

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Condensed Consolidated Statement of Equity (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statement of Equity
Dividends paid on common stock, per share (in dollars per share)	$ 0.14	$ 0.10	$ 0.28	$ 0.20

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NET INCOME PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2011

NET INCOME PER COMMON SHARE

Schedule of computation of net income per common share

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Net income attributable to common stockholders	$	10,609		$	6,180		$	18,910		$	9,748
Add: Income allocated to noncontrolling interest - Preferred Operating Partnership and Operating Partnership	1,910			1,762			3,754			3,390
Subtract: Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership	(1,437		)	(1,437		)	(2,875		)	(2,875		)
Net income for diluted computations	$	11,082		$	6,505		$	19,789		$	10,263
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	91,439,042			87,367,967			89,733,518			87,122,064
Operating Partnership units	3,049,935			3,627,368			3,049,935			3,627,368
Preferred Operating Partnership units	989,980			989,980			989,980			989,980
Dilutive and cancelled stock options	531,891			319,516			562,708			286,738
Average number of common shares outstanding - diluted	96,010,848			92,304,831			94,336,141			92,026,150
Net income per common share
Basic	$	0.12		$	0.07		$	0.21		$	0.11
Diluted	$	0.12		$	0.07		$	0.21		$	0.11

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Document and Entity Information	6 Months Ended
	Jun. 30, 2011	Jul. 30, 2011
Document and Entity Information
Entity Registrant Name	Extra Space Storage Inc.
Entity Central Index Key	0001289490
Document Type	10-Q
Document Period End Date	Jun. 30, 2011
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		94,264,593
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2

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VARIABLE INTERESTS (Tables)

6 Months Ended

Jun. 30, 2011

VARIABLE INTERESTS

Schedule of the comparison of the liability balance and the maximum exposure to loss related to the VIE JVs

						Balance of				Maximum
	Liability		Investment			Guaranteed		Payables to		Exposure
	Balance		Balance			Loan		Company		to Loss		Difference
Extra Space of Montrose Avenue LLC	$	—	$	1,214		$	4,838	$	2,469	$	8,521	$	(8,521	)
Extra Space of Sacramento One LLC	—		(862		)	4,307		6,094		9,539		(9,539		)
	$	—	$	352		$	9,145	$	8,563	$	18,060	$	(18,060	)

Schedule of the comparison of the liability balance and the maximum exposure to loss related to trusts

	Notes payable		Investment		Maximum
	to Trusts		Balance		exposure to loss		Difference
Trust	$	36,083	$	1,083	$	35,000	$	—
Trust II	42,269		1,269		41,000		—
Trust III	41,238		1,238		40,000		—
	$	119,590	$	3,590	$	116,000	$	—

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ORGANIZATION

6 Months Ended

Jun. 30, 2011

ORGANIZATION

ORGANIZATION

1. ORGANIZATION

Extra Space Storage Inc. (the “Company”) is a self-administered and self-managed real estate investment trust (“REIT”), formed as a Maryland corporation on April 30, 2004 to own, operate, manage, acquire, develop and redevelop professionally managed self-storage facilities located throughout the United States. The Company continues the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. The Company’s interest in its properties is held through its operating partnership, Extra Space Storage LP (the “Operating Partnership”), which was formed on May 5, 2004. The Company’s primary assets are general partner and limited partner interests in the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT (“UPREIT”). The Company has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended.  To the extent the Company continues to qualify as a REIT, it will not be subject to tax, with certain limited exceptions, on the taxable income that is distributed to its stockholders.

The Company invests in self-storage facilities by acquiring or developing wholly-owned facilities or by acquiring an equity interest in real estate entities.  At June 30, 2011, the Company had direct and indirect equity interests in 680 operating storage facilities.  In addition, the Company managed 180 properties for franchisees and third parties, bringing the total number of operating properties which it owns and/or manages to 860.  These properties are located in 34 states and Washington, D.C.

The Company operates in three distinct segments: (1) property management, acquisition and development; (2) rental operations; and (3) tenant reinsurance. The Company’s property management, acquisition and development activities include managing, acquiring, developing and selling self-storage facilities. On June 2, 2009, the Company announced the wind-down of its development activities.  As of June 30, 2011, there was one remaining development project in process.  The Company expects to complete this project by the end of 2011.  The rental operations activities include rental operations of self-storage facilities. No single tenant accounts for more than 5% of rental income.  Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in the Company’s self storage facilities.

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OTHER NONCONTROLLING INTERESTS

6 Months Ended

Jun. 30, 2011

OTHER NONCONTROLLING INTERESTS

OTHER NONCONTROLLING INTERESTS

10.OTHER NONCONTROLLING INTERESTS

Other noncontrolling interests represent the ownership interests of various third parties in three consolidated self-storage properties as of June 30, 2011.  Two of these consolidated properties were under development, and one was in the lease-up stage at June 30, 2011.  The ownership interests of the third-party owners range from 5.0% to 27.6%.  Other noncontrolling interests are included in the stockholders’ equity section of the Company’s condensed consolidated balance sheet.  The income or losses attributable to these third- party owners based on their ownership percentages are reflected in net income allocated to the Operating Partnership and other noncontrolling interests in the condensed consolidated statement of operations.

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VARIABLE INTERESTS (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
Variable Interests in Unconsolidated Real Estate Joint Ventures:
Number of interests in unconsolidated VIE joint ventures	2
Equity interests in unconsolidated VIE joint ventures, low end of range (as a percent)	18.00%
Equity interests in unconsolidated VIE joint ventures, high end of range (as a percent)	39.00%
Voting rights in unconsolidated VIE joint ventures (as a percent)	50.00%
Management fees charged from unconsolidated VIE joint ventures (as a percent)	6.00%
Corporate Joint Venture [Member]
Variable Interests in Unconsolidated Real Estate Joint Ventures:
Investment balance	$ 352
Balance of guaranteed loan	9,145
Payables to company	8,563
Maximum exposure to loss	18,060
Difference	(18,060)
Extra Space of Montrose Avenue LLC
Variable Interests in Unconsolidated Real Estate Joint Ventures:
Investment balance	1,214
Balance of guaranteed loan	4,838
Payables to company	2,469
Maximum exposure to loss	8,521
Difference	(8,521)
Extra Space of Sacramento One LLC
Variable Interests in Unconsolidated Real Estate Joint Ventures:
Investment balance	(862)
Balance of guaranteed loan	4,307
Payables to company	6,094
Maximum exposure to loss	9,539
Difference	$ (9,539)

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SUBSEQUENT EVENTS

6 Months Ended

Jun. 30, 2011

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

14.SUBSEQUENT EVENTS

On July 8, 2011, the Company purchased one property located in Maryland for $5,650.

On August 1, 2011, the Company purchased one property located in Maryland for $7,250.

On August 2, 2011, the Company purchased one property located in Texas for $2,400.

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Condensed Consolidated Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	94,243,303	87,587,322
Common stock, shares outstanding	94,243,303	87,587,322
Note receivable from noncontrolling interest represented by Preferred Operating Partnership units (in dollars)	$ 100,000	$ 100,000

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DERIVATIVES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
DERIVATIVES
Notional amount of cash flow hedge swap agreements, low end of range	$ 8,462		$ 8,462
Notional amount of cash flow hedge swap agreements, high end of range	63,000		63,000
Strike rate cash flow hedge swap agreements, low end of range (as a percent)	4.24%		4.24%
Strike rate cash flow hedge swap agreements, high end of range (as a percent)	6.98%		6.98%
Cash flow hedge swap agreements increase (decrease) in interest expenses due to interest payments	(1,365)	(640)	(2,014)	(1,272)
Cash flow hedge swap agreements gain (loss) recognized in OCI			(674)
Cash flow hedge swap agreements gain (loss) reclassified from OCI			(2,014)
Fair value of cash flow hedge swap agreements	$ (6,748)		$ (6,748)		$ (6,074)

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NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS (Details) (USD $) In Thousands, except Share data, unless otherwise specified			1 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2007 Preferred Operating Partnership	Jun. 30, 2011 Preferred Operating Partnership	Jun. 25, 2007 Preferred Operating Partnership
Noncontrolling interest represented by preferred operating partnership units
Number of self-storage facilities (properties) acquired			10
Preferred OP units (in units)			989,980
Loan to holders of preferred OP units	$ 100,000	$ 100,000			$ 100,000
Note receivable interest rate (as a percent)			4.85%
Maximum number of preferred OP units converted prior to the maturity date of the loan (in units)			114,500
Fixed priority return on preferred OP units, amount				115,000
Fixed priority return on preferred OP units, stated return rate (as a percent)				5.00%
Fixed priority return on preferred OP units, liquidation value				$ 115,000