10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2015

OR

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

For the transition period from to

Commission file number: 001-37351

National Storage Affiliates Trust

(Exact name of Registrant as specified in its charter)

Maryland	46-5053858
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

5200 DTC Parkway

Suite 200

Greenwood Village, Colorado 80111

(Address of principal executive offices) (Zip code)

(720) 630-2600

(Registrant's telephone number including area code)

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  ¨

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  ¨

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	¨	Accelerated Filer	¨
Non-accelerated Filer	x	Smaller Reporting Company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

As of August 10, 2015, 23,017,210 common shares of beneficial interest, $.01 par value per share, were outstanding.

EXPLANATORY NOTE

This quarterly report of National Storage Affiliates Trust includes the results of operations and financial condition of National Storage Affiliates Trust and its consolidated subsidiaries (the "Company") prior to the completion of the Company's initial public offering on April 28, 2015 and certain of its formation transactions, which occurred on or subsequent to April 28, 2015. As a result, the condensed consolidated financial statements included in this report are not necessarily indicative of subsequent results of operations, cash flows or financial position of the Company.

1

NATIONAL STORAGE AFFILIATES TRUST
TABLE OF CONTENTS
FORM 10-Q
		Page
PART I. FINANCIAL INFORMATION
ITEM 1.	Financial Statements	3
	Condensed Consolidated Balance Sheets as of June 30, 2015 (Unaudited) and December 31, 2014	3
	Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2015 and 2014 (Unaudited)	4
	Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and Six Months Ended June 30, 2015 and 2014 (Unaudited)	5
	Condensed Consolidated Statement of Changes in Equity for the Six Months Ended June 30, 2015 (Unaudited)	6
	Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2015 and 2014 (Unaudited)	7
	Notes to the Condensed Consolidated Financial Statements	9
ITEM 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	21
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	39
ITEM 4.	Controls and Procedures	40
PART II. OTHER INFORMATION
ITEM 1.	Legal Proceedings	41
ITEM 1A.	Risk Factors	41
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	41
ITEM 3.	Defaults Upon Senior Securities	41
ITEM 4.	Mine Safety Disclosures	41
ITEM 5.	Other Information	41
ITEM 6.	Exhibits	42
Signatures		44

2

PART I. FINANCIAL INFORMATION

ITEM 1. Financial Statements

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED BALANCE SHEETS

(dollars in thousands, except per share amounts)

	June 30,			December 31,
	2015			2014
	(Unaudited)
ASSETS
Real estate
Self storage properties	$	972,778		$	838,941
Less accumulated depreciation	(52,509		)	(39,614		)
Self storage properties, net	920,269			799,327
Cash and cash equivalents	6,055			9,009
Restricted cash	3,149			2,120
Debt issuance costs, net	4,785			6,346
Other assets, net	8,253			15,944
Total assets	$	942,511		$	832,746
LIABILITIES AND EQUITY
Liabilities
Debt financing	$	407,816		$	597,691
Accounts payable and accrued liabilities	14,877			10,012
Distributions payable	9,253			6,763
Deferred revenue	5,178			4,176
Total liabilities	437,124			618,642
Commitments and contingencies (Note 10)
Equity
Common shares of beneficial interest, par value $0.01 per share. 250,000,000 and 1,000 shares authorized, 23,017,210 and 1,000 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	230			—
Additional paid-in capital	233,638			—
Retained earnings	11			—
Accumulated other comprehensive loss	—			—
Total shareholders' equity	233,879			—
Noncontrolling interests	271,508			214,104
Total equity	505,387			214,104
Total liabilities and equity	$	942,511		$	832,746

See notes to condensed consolidated financial statements.

3

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
REVENUE
Rental revenue	$	30,632		$	15,793		$	58,050		$	28,649
Other property-related revenue	1,018			422			1,891			727
Total revenue	31,650			16,215			59,941			29,376
OPERATING EXPENSES
Property operating expenses	10,826			6,033			20,668			10,955
General and administrative expenses	4,187			1,796			7,800			3,134
Depreciation and amortization	9,974			4,697			19,851			8,534
Total operating expenses	24,987			12,526			48,319			22,623
Income from operations	6,663			3,689			11,622			6,753
OTHER INCOME (EXPENSE)
Interest expense	(4,824		)	(4,723		)	(11,806		)	(10,169		)
Loss on early extinguishment of debt	(914		)	(1,020		)	(914		)	(1,020		)
Acquisition costs	(719		)	(5,089		)	(1,318		)	(5,271		)
Organizational and offering expenses	—			(442		)	(58		)	(677		)
Non-operating (expense) income	(113		)	1			(204		)	(3		)
Gain on sale of self storage properties	—			1,426			—			1,426
Other income (expense)	(6,570		)	(9,847		)	(14,300		)	(15,714		)
Net income (loss)	93			(6,158		)	(2,678		)	(8,961		)
Net loss attributable to noncontrolling interests	3,371			6,158			6,142			8,961
Net income (loss) attributable to National Storage Affiliates Trust	$	3,464		$	—		$	3,464		$	—
Earnings (loss) per share - basic	$	0.22		$	—		$	0.44		$	—
Earnings (loss) per share - diluted	$	—		$	—		$	—		$	—
Weighted average shares outstanding - basic	15,517			1			7,802			1
Weighted average shares outstanding - diluted	52,565			1			26,327			1
Dividends declared per common share	0.15			—			0.15			—

See notes to condensed consolidated financial statements.

4

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(dollars in thousands)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Net income (loss)	$	93		$	(6,158	)	$	(2,678	)	$	(8,961	)
Other comprehensive income (loss)
Unrealized loss on derivative contracts	(104		)	(1,252		)	(1,270		)	(1,252		)
Reclassification of other comprehensive loss to interest expense	390			281			775			281
Comprehensive income (loss)	379			(7,129		)	(3,173		)	(9,932		)
Comprehensive (income) loss attributable to noncontrolling interests	3,085			7,129			6,637			9,932
Comprehensive income (loss) attributable to National Storage Affiliates Trust	$	3,464		$	—		$	3,464		$	—

See notes to condensed consolidated financial statements.

5

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

(dollars in thousands, except share amounts)

(Unaudited)

											Accumulated
					Additional						Other
	Common Shares				Paid-in			Retained			Comprehensive		Noncontrolling			Total
	Number		Amount		Capital			Earnings			Loss		Interests			Equity
Balances at December 31, 2014	1,000		$	—	$	—		$	—		$	—	$	214,104		$	214,104
OP equity issuances in business combinations:
OP units and subordinated performance units	—		—		—			—			—		31,925			31,925
Noncontrolling interests in acquired subsidiaries	—		—		—			—			—		6,770			6,770
Redemption of common shares	(1,000	)	—		—			—			—		—			—
Issuance of common shares, net of offering costs	23,000,000		230		270,780			—			—		—			271,010
Effect of changes in ownership for consolidated entities	—		—		(37,142		)	—			—		37,142			—
Equity-based compensation expense	—		—		—			—			—		1,721			1,721
Issuance of LTIP units for acquisition expenses	—		—		—			—			—		366			366
Issuance of restricted shares	17,210		—		—			—			—		—			—
Reduction in receivables from partners of OP	—		—		—			—			—		897			897
Common share dividends	—		—		—			(3,453		)	—		—			(3,453		)
Distributions to limited partners of OP	—		—		—			—			—		(14,780		)	(14,780		)
Other comprehensive loss	—		—		—			—			—		(495		)	(495		)
Net income (loss)	—		—		—			3,464			—		(6,142		)	(2,678		)
Balances at June 30, 2015	23,017,210		$	230	$	233,638		$	11		$	—	$	271,508		$	505,387

See notes to condensed consolidated financial statements.

6

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(dollars in thousands)

(Unaudited)

	Six Months Ended June 30,
	2015			2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$	(2,678	)	$	(8,961	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	19,851			8,534
Amortization of debt issuance costs	1,610			1,082
Amortization of debt discount and premium, net	(780		)	907
Loss on debt extinguishment	414			344
Unrealized (gain) loss on fair value of derivatives	(3		)	193
Gain on sale of self storage properties	—			(1,426		)
Issuance of subordinated performance units for related party payable	—			3,242
LTIP units issued for acquisition expenses	366			—
Equity-based compensation expense	1,721			684
Change in assets and liabilities, net of effects of business combinations:
Restricted cash	(221		)	941
Other assets	(865		)	(121		)
Accounts payable and accrued liabilities	1,363			327
Deferred revenue	249			198
Net Cash Provided by Operating Activities	21,027			5,944
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of self storage properties	(47,523		)	(89,856		)
Capital expenditures	(2,000		)	(1,812		)
Note receivable from PROs	—			(4,831		)
Deposits and advances for self storage property acquisitions	(145		)	(7,495		)
Expenditures for corporate furniture, equipment and other	(58		)	(93		)
Change in restricted cash designated for capital expenditures	188			333
Proceeds from sale of self storage properties	—			2,993
Net Cash Used in Investing Activities	(49,538		)	(100,761		)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuance of common shares in IPO	278,070			—
Borrowings under debt financings	21,000			245,449
Proceeds from issuance of OP units	—			431
Receipts for OP unit subscriptions	746			—
Collection of receivables from issuance of OP equity	575			—
Principal payments under debt financings	(257,084		)	(143,564		)
Distributions to partners of OP	(14,681		)	(3,570		)
NSA Predecessor distributions and other	—			(429		)
Change in restricted cash for financing activity	(167		)	—
Debt issuance costs	(553		)	(183		)
Equity offering costs	(2,349		)	(173		)
Net Cash Provided by Financing Activities	25,557			97,961
(Decrease) Increase in Cash and Cash Equivalents	(2,954		)	3,144
CASH AND CASH EQUIVALENTS
Beginning of period	9,009			11,196
End of period	$	6,055		$	14,340

See notes to condensed consolidated financial statements.

7

NATIONAL STORAGE AFFILIATES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

(dollars in thousands)

(Unaudited)

	Six Months Ended June 30,
	2015		2014
Supplemental Cash Flow Information
Cash paid for interest	$	11,739	$	8,632
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Consideration exchanged in business combinations:
Issuance of OP units and subordinated performance units	$	31,925	$	70,557
Deposits on acquisitions applied to purchase price	745		50
LTIP units vesting upon acquisition of properties	—		2,299
Assumption of mortgages payable	46,989		—
Note payable to related party to settle assumed mortgages	5,342		—
Other net liabilities assumed	358		1,157
Notes receivable settled upon acquisition of properties	1,778		4,831
Fair value of noncontrolling interests in acquired subsidiaries	6,770		—
Issuance of OP units for settlement of subscription liability	194		5,863
Settlement of acquisition receivables from distributions	867		—
Increase in lender participation liability and related discount	—		770
Increase in payables for deferred offering costs	1,625		442
Settlement of debt issuance costs from borrowings	—		3,851
Settlement of offering costs from IPO proceeds	20,930		—

See notes to condensed consolidated financial statements.

8

NATIONAL STORAGE AFFILIATES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2015

(Unaudited)

1. ORGANIZATION AND NATURE OF OPERATIONS

National Storage Affiliates Trust was organized in the state of Maryland on May 16, 2013 and is a fully integrated, self-administered and self-managed real estate investment trust focused on the self storage sector. As used herein, "NSA," the "Company," "we," "our," and "us" refers to National Storage Affiliates Trust and its consolidated subsidiaries, except where the context indicates otherwise. The Company intends to elect and qualify as a real estate investment trust ("REIT") for U.S. federal income tax purposes commencing with its taxable year ending December 31, 2015.

Through our controlling interest as the sole general partner of NSA OP, LP (our "operating partnership"), a Delaware limited partnership formed on February 13, 2013, we are focused on the ownership, operation, and acquisition of self storage properties in the United States. Pursuant to the Agreement of Limited Partnership (as amended, the "LP Agreement") of our operating partnership, our operating partnership is authorized to issue Class A Units ("OP units"), different series of Class B Units ("subordinated performance units"), and Long-Term Incentive Plan Units ("LTIP units"). We also own certain of our self storage properties through other consolidated limited partnership subsidiaries of our operating partnership, which we refer to as "DownREIT partnerships." The DownREIT partnerships issue equity ownership interests that are intended to be economically equivalent to our OP units ("DownREIT OP units") and subordinated performance units ("DownREIT subordinated performance units").

The Company completed its initial public offering on April 28, 2015, pursuant to which it sold 20,000,000 shares of the Company's common shares of beneficial interest, $0.01 par value per share ("common shares"), at a price of $13.00 per share. As part of the offering, the Company granted the underwriters an option to purchase up to 3,000,000 additional common shares within thirty days after the offering. The underwriters exercised their option and, on May 18, 2015, purchased an additional 3,000,000 common shares. These transactions resulted in net proceeds to the Company of approximately $278.1 million, after deducting the underwriting discount and before additional expenses associated with the offering.

The Company contributed the net proceeds from its initial public offering to our operating partnership in exchange for 23,000,000 OP units. OP Units are the economic equivalent of the Company's common shares and for each common share issued by the Company, our operating partnership issues a corresponding OP Unit to NSA in exchange for the contribution of the proceeds from the share issuances. Immediately prior to the completion of our initial public offering on April 28, 2015, we redeemed 1,000 common shares held by National Storage Affiliates Holdings, LLC ("Holdings"), an entity formed on February 13, 2013, for no consideration. Prior to this redemption, the Company was 100% owned by Holdings and the only assets of Holdings were 126,400 OP units and 1,000 common shares.

The Company owned 246 self storage properties in 16 states with approximately 13.6 million rentable square feet in approximately 107,000 storage units as of June 30, 2015. These properties are managed with local operational focus and expertise by our participating regional operators ("PROs"). These PROs are SecurCare Self Storage, Inc. and its controlled affiliates ("SecurCare"), Kevin Howard Real Estate Inc., d/b/a Northwest Self Storage and its controlled affiliates ("Northwest"), Optivest Properties LLC and its controlled affiliates ("Optivest"), Guardian Storage Centers LLC and its controlled affiliates ("Guardian"), and Move It Self Storage and its controlled affiliates ("Move It"). In addition, upon the completion of our initial public offering and formation transactions, we were joined by our sixth PRO, Arizona Mini Storage Management Company d/b/a Storage Solutions and its controlled affiliates ("Storage Solutions").

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles ("GAAP") and have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the consolidated financial statements have been included.

9

Principles of Consolidation

The Company's financial statements include the accounts of our operating partnership and its controlled subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation of entities.

When the Company obtains an economic interest in an entity, the Company evaluates the entity to determine if the entity is deemed a variable interest entity ("VIE"), and if the Company is deemed to be the primary beneficiary, in accordance with authoritative guidance issued on the consolidation of VIEs. When an entity is not deemed to be a VIE, the Company considers the provisions of additional guidance to determine whether the general partner controls a limited partnership or similar entity when the limited partners have certain rights. The Company consolidates (i) entities that are VIEs and of which the Company is deemed to be the primary beneficiary, and (ii) entities that are non-VIEs which the Company controls and which limited partners lack both substantive participating rights and the ability to dissolve or remove the Company without cause.

Noncontrolling Interests

All of the limited partner equity interests in our operating partnership not held by the Company are reflected as noncontrolling interests. Noncontrolling interests also include ownership interests in DownREIT partnerships held by entities other than our operating partnership. In the consolidated statements of operations, we allocate net income (loss) attributable to noncontrolling interests to arrive at net income (loss) attributable to National Storage Affiliates Trust.

For transactions that result in changes to the Company's ownership interest in our operating partnership, the carrying amount of noncontrolling interests is adjusted to reflect such changes. The difference between the fair value of the consideration received or paid and the amount by which the noncontrolling interest is adjusted is reflected as an adjustment to additional paid-in capital on the consolidated balance sheets.

Reclassifications     

Certain amounts in the financial statements and related notes have been reclassified to conform to the current year presentation. Such reclassifications do not impact our previously reported financial position or net income (loss).

Allocation of Net Income (Loss)

The distribution rights and priorities set forth in our operating partnership's LP Agreement differ from what is reflected by the underlying percentage ownership interests of the unitholders. Accordingly, we allocate GAAP income (loss) utilizing the hypothetical liquidation at book value ("HLBV") method, in which we allocate income or loss based on the change in each unitholders’ claim on the net assets of our operating partnership at period end after adjusting for any distributions or contributions made during such period. The HLBV method is commonly applied to equity investments where cash distribution percentages vary at different points in time and are not directly linked to an equity holder’s ownership percentage.

The HLBV method is a balance sheet-focused approach. A calculation is prepared at each balance sheet date to determine the amount that unitholders would receive if our operating partnership were to liquidate all of its assets (at GAAP net book value) and distribute the resulting proceeds to its creditors and unitholders based on the contractually defined liquidation priorities. The difference between the calculated liquidation distribution amounts at the beginning and the end of the reporting period, after adjusting for capital contributions and distributions, is used to derive each unitholder's share of the income (loss) for the period. Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to unitholders as compared to their respective ownership percentage in our operating partnership, and net income (loss) attributable to National Storage Affiliates Trust could be more or less net income than actual cash distributions received and more or less income or loss than what may be received in the event of an actual liquidation. Additionally, the HLBV method could result in net income attributable to National Storage Affiliates Trust during a period when the Company reports a consolidated net loss, or net income attributable to National Storage Affiliates Trust in excess of the Company's consolidated net income.

Other Comprehensive Income (Loss)

We have cash flow hedge derivative instruments that are measured at fair value with unrealized gains or losses recognized in other comprehensive income (loss) with a corresponding adjustment to accumulated other comprehensive loss within equity, as discussed further in Note 11. Under the HLBV method of allocating income (loss) discussed above, a calculation is prepared at each balance sheet date by applying the HLBV method including, and excluding, the assets and liabilities resulting from our cash flow hedge derivative instruments to determine comprehensive income

10

(loss) attributable to National Storage Affiliates Trust. As a result of the distribution rights and priorities set forth in our operating partnership's LP Agreement, all amounts of consolidated other comprehensive income (loss) for the three and six months ended June 30, 2015 were allocated to noncontrolling interests, as presented within the accompanying consolidated statements of comprehensive income or loss.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective. ASU 2014-09 is effective for the Company on January 1, 2018, with early application permitted for the Company on January 1, 2017. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which modifies the current consolidation guidance. The Company is required to adopt ASU 2015-02 for annual and interim financial statements issued for the year ending December 31, 2016. Upon adoption by the Company, ASU 2015-02 permits the use of either the modified retrospective or cumulative effect transition method. The Company is currently evaluating the impact of the provisions of ASU 2015-02 on its consolidation policies as well as the transition method to be used to implement ASU 2015-02.

In April 2015, the FASB issued ASU 2015-03, Interest—Imputation of Interest, which requires the presentation of debt issuance costs as a direct deduction from the carrying amount of the related debt liabilities. The Company does not expect ASU 2015-03 to have a material impact on the Company's results from operations, however, adoption will result in the elimination of debt issuance costs as an asset and a corresponding reduction in the carrying amount of the Company's debt financings applied retrospectively to all periods. The Company is required to adopt this ASU for annual and interim financial statements issued for the year ending December 31, 2016. Early adoption is permitted. The Company is evaluating the effect that ASU 2015-03 will have on its consolidated financial statements and related disclosures.

3. NONCONTROLLING INTERESTS

As of June 30, 2015 and December 31, 2014, noncontrolling interests consisted of the following:

	June 30,	December 31,
	2015	2014
OP units	20,705,654	18,817,088
Subordinated performance units	9,232,067	8,447,679
LTIP units	2,730,540	2,689,780
DownREIT units
DownREIT OP units	1,415,349	1,275,979
DownREIT subordinated performance units	3,688,205	3,009,884
Total	37,771,815	34,240,410

While the Company controls our operating partnership and manages the daily operations of our operating partnership's business, the Company did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of the Company's initial public offering. The increase in OP Units, DownREIT OP units, subordinated performance units, and DownREIT subordinated performance units outstanding from December 31, 2014 to June 30, 2015 was due to the acquisition of self storage properties and a centralized call center. The increase

11

in LTIP units outstanding from December 31, 2014 to June 30, 2015 was due to the issuance of compensatory LTIP units to third party consultants and employees.

4. SELF STORAGE PROPERTIES

Self storage properties are summarized as follows (dollars in thousands):

	June 30,			December 31,
	2015			2014
Land	$	268,814		$	236,691
Buildings and improvements	701,930			600,284
Furniture and equipment	2,034			1,966
Total self storage properties	972,778			838,941
Less accumulated depreciation	(52,509		)	(39,614		)
Self storage properties, net	$	920,269		$	799,327

5. SELF STORAGE PROPERTY ACQUISITIONS

The Company acquired 27 self storage properties with an estimated fair value of $136.1 million during the six months ended June 30, 2015. Of these acquisitions, 10 were acquired by us from our PROs and 17 were acquired by us from third-party sellers. These self storage property acquisitions were accounted for as business combinations whereby the Company recognized the estimated fair value of the acquired assets and assumed liabilities on the respective dates of such acquisitions. The Company preliminarily allocated the total purchase price to the estimated fair value of tangible and intangible assets acquired, and liabilities assumed. The Company allocated a portion of the purchase price to identifiable intangible assets consisting of customer in-place leases which were recorded at estimated fair value of $4.0 million, resulting in a total fair value of $132.1 million allocated to real estate.

The following table summarizes, by calendar quarter, the consideration for the business combinations completed by the Company during the six months ended June 30, 2015 (dollars in thousands):

Acquisitions Closed During the Three Months Ended:		Summary of Consideration
	Number of Properties			Value of OP Equity (1)		Settlement of Note Receivable		Liabilities Assumed (Assets Acquired)
		Cash						Mortgages(3)		Other		Total
March 31, 2015	6	$	6,991	$	8,954	$	1,778	$	16,442	$	70	$	34,235	(2)
June 30, 2015	21	41,277		22,971		—		30,547		288		95,083
Total	27	$	48,268	$	31,925	$	1,778	$	46,989	$	358	$	129,318

^{(1)  Value of OP equity represents the fair value of OP units and subordinated performance units.}  

^{(2)  Excludes the fair value of noncontrolling interests associated with self storage properties acquired in DownREIT partnerships which amounted to $6.8 million for the three months ended March 31, 2015. We estimate the portion of the fair value of the net assets owned by noncontrolling interests based on the fair value of the real estate and debt assumed.} 

^{(3)  Includes fair value of debt adjustment for assumed mortgages of approximately $2.0 million.}  

Three of the 27 self storage properties acquired during the six months ended June 30, 2015 are subject to non-cancelable leasehold interest agreements that are classified as operating leases. These lease agreements expire between 2034 and 2051, inclusive of extension options that we anticipate exercising.

The results of operations for these business combinations are included in our statements of operations beginning on the respective closing date for each acquisition. For the three and six months ended June 30, 2015, the accompanying statements of operations includes aggregate revenue of $3.3 million and $4.5 million, respectively, and operating income of $1.9 million and $2.6 million, respectively, related to the 27 self storage properties acquired. Acquisition costs in the accompanying statements of operations include consulting fees, transaction expenses, and other costs related to business combinations, which amounted to $0.7 million and $1.3 million for the three and six months ended June 30, 2015, respectively.

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Pro Forma Financial Information

The pro forma financial information set forth below reflects adjustments to the historical data of the Company to give effect to the acquisitions and related financing activities for (i) each of the 21 self storage properties that were acquired in April and May 2015, as if each had occurred on January 1, 2014, and (ii) each of the six self storage properties that were acquired in January 2015, as if each had occurred on January 1, 2014 (five of the six properties acquired during the three months ended March 31, 2015 were acquired on January 1, 2015 and are therefore included in the historical results for the entirety of the three and six months ended June 30, 2015). Pro forma financial information is not presented for the self storage properties that were acquired subsequent to June 30, 2015 since all information required to complete this disclosure is not currently available to the Company.

The pro forma information presented below does not purport to represent what the actual results of operations would have been for the periods indicated, nor does it purport to represent the Company's future results of operations. The following table summarizes on a pro forma basis the results of operations for the three and six months ended June 30, 2015 and 2014 (dollars in thousands, except per share amounts):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Pro forma revenue:
Historical results	$	31,650	$	16,215		$	59,941		$	29,376
April-May 2015 Acquisitions (excluding those in historical results)	961		2,629			3,782			5,215
January 2015 Acquisitions (excluding those in historical results)	—		1,226			86			2,443
Total	$	32,611	$	20,070		$	63,809		$	37,034
Pro forma net income (loss): (1)
Historical results	$	93	$	(6,158	)	$	(2,678	)	$	(8,961	)
April-May 2015 Acquisitions (excluding those in historical results)	1,404		(55		)	2,292			(1,337		)
January 2015 Acquisitions (excluding those in historical results)	317		(152		)	1,208			(991		)
Total	$	1,814	$	(6,365	)	$	822		$	(11,289	)
Earnings (loss) per share - basic:
As reported	$	0.22	$	—		$	0.44		$	—
Pro forma	$	0.22	$	—		$	0.44		$	—
Earnings (loss) per share - diluted:
As reported	$	—	$	—		$	—		$	—
Pro forma	$	0.03	$	—		$	0.03		$	—

^{(1)  Significant assumptions and adjustments in preparation of the pro forma information include the following: (i) for the cash portion of the purchase price, the Company assumed borrowings under the Company's revolving line of credit with interest computed based on the effective interest rate of 1.79% as of June 30, 2015; (ii) for assumed debt financing directly associated with the acquisition of specific self storage properties, interest was computed for the entirety of the periods presented using the effective interest rates under such financings; and (iii) for acquisition costs of $1.3 million incurred during the six months ended June 30, 2015, pro forma adjustments give effect to these costs as if they were incurred on January 1, 2014.} 

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6. OTHER ASSETS

Other assets consist of the following (dollars in thousands):

	June 30,		December 31,
	2015		2014
Customer in-place leases, net of accumulated amortization of $7,308 and $5,469, respectively	$	4,950	$	7,700
Receivables:
Trade, net	893		979
PROs and other affiliates	336		416
Note receivable from PRO	—		1,778
Property acquisition deposits	170		770
Prepaid expenses and other	1,691		1,017
Corporate furniture and equipment, net	213		198
Deferred offering costs	—		3,086
Total	$	8,253	$	15,944

7. DEBT FINANCING

The Company's outstanding debt as of June 30, 2015 and December 31, 2014 is summarized as follows (dollars in thousands):

	Interest	June 30,		December 31,
	Rate (1)	2015		2014
Credit Facility:
Revolving line of credit	1.79%	$	80,917	$	166,217
Term loan	2.75%	144,558		144,558
Unsecured term loan	—	—		50,000
Fixed rate mortgages payable	3.93%	182,341		153,416
Variable rate mortgages payable	—	—		83,500
Total		$	407,816	$	597,691

^{(1)  Represents the effective interest rate as of June 30, 2015. Effective interest rate incorporates the stated rate plus the impact of interest rate cash flow hedges and discount and premium amortization, if applicable. For the revolving line of credit, the effective interest rate excludes fees for unused borrowings.} 

Credit Facility

On April 1, 2014 (as amended in July 2014), the Company entered into a $425.0 million senior secured credit facility (the "credit facility") with a syndicated group of lenders consisting of seven financial institutions. Upon completion of our initial public offering, this credit facility, which was secured, became unsecured. The credit facility consists of two components:

• A senior revolving credit facility (the "revolving line of credit"), which provides for a total borrowing commitment up to $280.4 million, whereby the Company may borrow, repay and re-borrow amounts under the revolving line of credit. The borrowing commitment is subject to a borrowing base calculation, which only includes self storage properties with an occupancy rate of at least 75% on a combined basis. As of June 30, 2015, we had the capacity to borrow $199.5 million, subject to the borrowing base calculation. The Company is required to pay a fee which ranges from 0.20% to 0.30% of unused borrowings under the revolving line of credit. As of June 30, 2015, the pricing grid under the revolving line of credit provides for an interest rate equal to one-month London Interbank Offered Rate ("LIBOR") plus 1.60%. The revolving line of credit matures in March 2017 and the Company may elect an extension of the maturity date until

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March 2018 by paying an extension fee equal to 0.20% of the total borrowing commitment at the time of the extension.

• A $144.6 million senior term loan (the "term loan") which provides that amounts borrowed may be repaid at any time but not re-borrowed. As of June 30, 2015, the pricing grid under the term loan provides for an interest rate equal to one-month LIBOR plus 1.50%. No principal payments are required under the term loan until the maturity date in March 2018.

The terms of the credit facility limit the Company's ability to make distributions, incur additional debt, and acquire or sell significant assets. The credit facility requires compliance with certain financial and nonfinancial covenants, including a maximum total leverage ratio, a minimum fixed charge coverage ratio, and minimum net worth. At June 30, 2015, we were in compliance with all such covenants.

We used a portion of the proceeds received from our initial public offering to pay down $96.3 million of the outstanding balance of the revolving line of credit.

Unsecured Term Loan

On April 1, 2014, the Company entered into a senior unsecured term loan (the "unsecured term loan") with a syndicated group of lenders consisting of three financial institutions. The unsecured term loan provided for maximum borrowings of $50.0 million. The loan originally matured on April 1, 2015 but was extended until October 1, 2015 in exchange for a prescribed fee of $250,000. There was a mandatory repayment of this loan upon the occurrence of a capital event (such as completion of the Company's initial public offering) as defined in the loan agreement, and following the completion of our initial public offering, we used a portion of the net proceeds from our initial public offering to repay the $50.0 million unsecured term loan. The repayment resulted in a $0.2 million write-off of unamortized debt issuance costs. Prior to the repayment, payments were limited to interest only, to be paid on a monthly basis, and the outstanding principal balance bore interest at one-month LIBOR plus 5.00%.

Fixed Rate Mortgages Payable

Fixed rate mortgages have scheduled maturities at various dates through November 2024, and have effective interest rates that range from 2.20% to 5.00%. Principal and interest are generally payable monthly or in monthly interest-only payments with balloon payments due at maturity. As discussed in Note 5, we assumed fixed rate mortgages of $47.0 million in connection with 16 of the properties acquired during the six months ended June 30, 2015. We repaid $11.0 million of these assumed mortgages during the six months ended June 30, 2015.

Variable Rate Mortgages Payable

Variable rate mortgages had contractual maturities at various dates through October 2015, and had effective interest rates that ranged from 2.43% to 9.65%. Following the completion of our initial public offering during the three months ended June 30, 2015, we used a portion of the net proceeds from our initial public offering to repay all $83.5 million of the outstanding variable rate mortgages. In connection with the repayments, the Company incurred a $0.5 million prepayment penalty and recorded a $0.2 million write-off of unamortized debt issuance costs. Prior to the repayment, principal and interest on this debt was generally payable in monthly interest-only payments with balloon payments due at maturity.

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8. EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings (loss) per common share for the three and six months ended June 30, 2015 and 2014, respectively (in thousands, except per share amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Earnings (loss) per common share - basic and diluted
Numerator
Net income (loss)	$	93		$	(6,158	)	$	(2,678	)	$	(8,961	)
Net loss attributable to noncontrolling interests	3,371			6,158			6,142			8,961
Net income (loss) attributable to National Storage Affiliates Trust	3,464			—			3,464			—
Distributed and undistributed earnings allocated to participating securities	(3		)	—			(3		)	—
Net income (loss) attributable to common shareholders - basic	3,461			—			3,461			—
Effect of assumed conversion of dilutive securities	(3,371		)	—			(3,371		)	—
Net income (loss) attributable to common shareholders - diluted	$	90		$	—		$	90		$	—
Denominator
Weighted average shares outstanding - basic	15,517			1			7,802			1
Effect of dilutive securities:
Weighted average OP units outstanding	20,208			—			10,104			—
Weighted average DownREIT OP unit equivalents outstanding	1,415			—			708			—
Weighted average LTIP units outstanding	1,247			—			624			—
Subordinated performance units and DownREIT subordinated performance unit equivalents	14,178			—			7,089			—
Weighted average shares outstanding - diluted	52,565			1			26,327			1
Earnings (loss) per share - basic	$	0.22		$	—		$	0.44		$	—
Earnings (loss) per share - diluted	$	—		$	—		$	—		$	—

As discussed in Note 3, the Company did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of the Company's initial public offering. As a result, all of our operating partnership's profits and losses for the period from January 1, 2015 to April 28, 2015 and the three and six months ended June 30, 2014 were allocated to noncontrolling interests.

Outstanding equity interests of our operating partnership and DownREIT partnerships are considered potential common shares for purposes of calculating diluted earnings (loss) per share as the unitholders may, through the exercise of redemption rights, obtain common shares, subject to various restrictions. Basic earnings per share is calculated based on the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated by further adjusting for the dilutive impact using the treasury stock method for unvested LTIP units subject to a service condition outstanding during the period and the if-converted method for any convertible securities outstanding during the period.

One year from the completion of the initial public offering, OP units in our operating partnership are redeemable for cash or, at our option, exchangeable for common shares on a one-for-one basis, subject to certain adjustments and five years after the completion of the initial public offering or, in the case of DownREIT limited partnership agreements

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("DownREIT LPAs") entered into after the initial public offering, five years after the date of the applicable DownREIT LPA, DownREIT OP units are redeemable for cash or, at our option, exchangeable for OP units in our operating partnership on a one-for-one basis, subject to certain adjustments in each case.

LTIP units may also, under certain circumstances, be convertible into OP units, which are exchangeable for common shares as described above. Certain LTIP units vested prior to or upon the completion of the Company's initial public offering and certain LTIP units will vest upon the satisfaction of a future service condition. Vested LTIP units and unvested LTIP units that vest based on a service condition are allocated income or loss in a similar manner as OP units. Unvested LTIP units subject to a service condition are evaluated for dilution using the treasury stock method. For the three and six months ended June 30, 2015, 398,817 unvested LTIP units that vest based on a service condition are excluded from the calculation of diluted earnings (loss) per share as they are not dilutive to earnings (loss) per share. In addition, certain LTIP units vest upon the future acquisition of properties sourced by PROs. For the three and six months ended June 30, 2015, 522,900 unvested LTIP units that vest upon the future acquisition of properties are excluded from the calculation of diluted earnings (loss) per share because the contingency for the units to vest has not been attained as of the end of the reported periods.

Subordinated performance units may also, under certain circumstances, be convertible into OP units which are exchangeable for common shares as described above, and DownREIT subordinated performance units may, under certain circumstances, be exchangeable for subordinated performance units on a one-for-one basis. Subordinated performance units are only convertible into OP units, beginning two years following the completion of the initial public offering and then (i) at the holder’s election only upon the achievement of certain performance thresholds relating to the properties to which such subordinated performance units relate or (ii) at our election upon a retirement event of a PRO that holds such subordinated performance units or upon certain qualifying terminations.

Although subordinated performance units and DownREIT subordinated performance units may only be convertible beginning two years following the completion of the initial public offering, we assume a hypothetical conversion of each subordinated performance unit (including each DownREIT subordinated performance unit) into OP units (with subsequently assumed redemption into common shares) for the purposes of calculating diluted weighted average common shares. This hypothetical conversion is calculated using historical financial information prior to the completion of the Company's initial public offering on April 28, 2015, and as a result, is not necessarily indicative of the subsequent results of operations, cash flows or financial position of the Company following the initial public offering or upon expiration of the two-year lock out period on conversions.

Participating securities, which consist of unvested restricted shares, receive dividends equal to those received by common shares. The effect of participating securities for the periods presented above is calculated using the two-class method of allocating distributed and undistributed earnings.

9. RELATED PARTY TRANSACTIONS

Supervisory and Administrative Fees

The Company has entered into asset management agreements with the PROs to continue providing leasing, operating, supervisory and administrative services related to the self storage properties contributed by and acquired from the PROs. The PROs are the same entities that provided similar services prior to the respective dates that the self storage properties were contributed to or acquired by the Company. The asset management agreements generally provide for fees ranging from 5% to 6% of gross revenue for the managed self storage properties. During the three months ended June 30, 2015 and 2014, the Company incurred $1.8 million and $0.9 million, respectively, for supervisory and administrative fees to the PROs and during the six months ended June 30, 2015 and 2014, the Company incurred $3.4 million and $1.7 million, respectively, for supervisory and administrative fees to the PROs. Such fees are included in general and administrative expenses in the accompanying statements of operations.

Affiliate Payroll Services

The employees responsible for operation of the self storage properties are employees of the PROs who charge the Company for the costs associated with the respective employees. For the three months ended June 30, 2015 and 2014, the Company incurred $3.2 million and $1.6 million, respectively, for payroll and related costs reimbursable to these affiliates, and for the six months ended June 30, 2015 and 2014, the Company incurred $6.1 million and $3.1 million, respectively, for payroll and related costs reimbursable to these affiliates. Such costs are included in property operating expenses in the accompanying statements of operations.

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Affiliate Call Center Services

On April 1, 2015, the Company acquired a centralized call center for 50,000 OP units from SecurCare, an affiliate of NSA Predecessor. Because the Company and SecurCare are under common control, the assets acquired and liabilities assumed were recorded at SecurCare's historical carrying value, which was a nominal amount as of the acquisition date. SecurCare continues to manage call center services to support self storage property operations and the fees paid to SecurCare for these services for the three months ended June 30, 2015 are included in the supervisory and administrative fees discussed above. The call center utilizes approximately 1,500 square feet in one of the Company's self storage properties acquired from NSA Predecessor for annual rent of approximately $25,000.

Prior to the acquisition, for the three months ended June 30, 2014, the Company incurred call center charges of $0.1 million, and for the six months ended June 30, 2015 and 2014, the Company incurred call center charges of $0.2 million and $0.2 million, respectively. Such call center costs are included in property operating expenses in the accompanying statements of operations.

Brokerage Fees

In connection with self-storage properties contributed by NSA Predecessor, during the six months ended June 30, 2014 the Company recognized a $3.2 million contractually obligated transaction expense payable to SecurCare, an affiliate of NSA Predecessor. In April 2014, the Company issued subordinated performance units in full payment of this amount.

Notes Receivable

In connection with the planned acquisition of certain self storage properties, the Company made a bridge loan of approximately $8.0 million to a PRO on July 1, 2014. This loan did not bear interest and was repaid as the related self storage properties were acquired. Through December 31, 2014, 13 of the self storage properties had been acquired and bridge loan advances totaling $6.2 million were applied to offset the acquisition consideration otherwise payable by the Company. As of December 31, 2014, the bridge loan balance of $1.8 million is included in other assets in the accompanying balance sheet. In January 2015, the remaining balance of the bridge loan was applied to offset the acquisition consideration otherwise payable by the Company related to two self storage property acquisitions.

Notes Payable

During the six months ended June 30, 2015, in connection with the acquisition of self storage properties owned in DownREIT partnerships, the Company entered into bridge loan agreements for $5.3 million payable to principals of the PRO that contributed the properties. The notes bore interest at a weighted average fixed rate of 3.3% and were fully repaid during the six months ended June 30, 2015.

10. COMMITMENTS AND CONTINGENCIES

Legal Proceedings

The Company is subject to litigation, claims, and assessments that may arise in the ordinary course of its business activities. Such matters include contractual matters, employment related issues, and regulatory proceedings. Although occasional adverse decisions or settlements may occur, the Company believes that the final disposition of such matters will not have a material adverse effect on the Company's financial position, results of operations, or liquidity.

11. FAIR VALUE MEASUREMENTS

Recurring Fair Value Measurements

We sometimes limit our exposure to interest rate fluctuations by entering into interest rate swap or cap agreements. The interest rate swap agreements moderate our exposure to interest rate risk by effectively converting the interest on variable rate debt to a fixed rate. The interest rate cap agreements effectively limit our exposure to interest rate risk by providing a ceiling on the underlying variable interest rate. Our interest rate cap agreements are not material to our financial position and results of operations.

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We measure our interest rate swap derivatives at fair value on a recurring basis. Information regarding our interest rate swaps measured at fair value, which are classified within Level 2 of the GAAP fair value hierarchy, is presented below (dollars in thousands):

	Interest Rate Swaps Designated as Cash Flow Hedges			Non-hedge accounting Interest Rate Swaps			Total
Fair value at December 31, 2013	$	—		$	70		$	70
Unrealized losses included in interest expense	—			(193		)	(193		)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	281			—			281
Unrealized losses included in accumulated other comprehensive loss	(1,252		)	—			(1,252		)
Fair value at June 30, 2014	$	(971	)	$	(123	)	$	(1,094	)
Fair value at December 31, 2014	$	(865	)	$	(207	)	$	(1,072	)
Unrealized gains included in interest expense	—			8			8
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	775			—			775
Unrealized losses included in accumulated other comprehensive loss	(1,270		)	—			(1,270		)
Fair value at June 30, 2015	$	(1,360	)	$	(199	)	$	(1,559	)

As of June 30, 2015 and December 31, 2014, we had outstanding interest rate swaps with aggregate notional amounts of $125.0 million designated as cash flow hedges. As of June 30, 2015, these swaps had a weighted average remaining term of 2.8 years. The fair value of these swaps designated as hedges are presented within accounts payable and accrued liabilities in our balance sheets, and we recognize any changes in the fair value as an adjustment of accumulated other comprehensive loss within equity to the extent of their effectiveness. If the forward rates at June 30, 2015 remain constant, we estimate that during the next 12 months, we would reclassify into earnings approximately $1.3 million of the unrealized losses included in accumulated other comprehensive loss. If market interest rates increase above the 1.42% weighted average fixed rate under these interest rate swaps we will benefit from net cash payments due to us from our counterparty to the interest rate swaps.

As of June 30, 2015 and December 31, 2014, we had an interest rate swap with a notional amount of $7.5 million and $7.6 million, respectively, that was not designated as a cash flow hedge. As of June 30, 2015, this swap had a remaining term of 6.6 years. The fair value of this swap is presented within accounts payable and accrued liabilities in our balance sheets, and we recognize any changes in the fair value as an adjustment of interest expense. If market interest rates increase above the 2.28% fixed rate under this interest rate swap we will benefit from net cash payments due to us from our counterparty to the interest rate swap.

There were no transfers between levels during the six months ended June 30, 2015 and 2014. For financial assets and liabilities that utilize Level 2 inputs, the Company utilizes both direct and indirect observable price quotes, including LIBOR yield curves. The Company uses valuation techniques for Level 2 financial assets and liabilities which include LIBOR yield curves at the reporting date as well as assessing counterparty credit risk. Counterparties to these contracts are highly rated financial institutions. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with the Company's derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by the Company and the counterparties. As of June 30, 2015, the Company determined that the effect of credit valuation adjustments on the overall valuation of its derivative positions are not significant to the overall valuation of its derivatives. Therefore, the Company has determined that its derivative valuations are appropriately classified in Level 2 of the fair value hierarchy.

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Fair Value Disclosures

The carrying values of cash and cash equivalents, restricted cash, trade receivables, and accounts payable and accrued liabilities reflected in the balance sheets at June 30, 2015 and December 31, 2014, approximate fair value due to the short term nature of these financial assets and liabilities. The carrying value of variable rate debt financing reflected in the balance sheets at June 30, 2015 and December 31, 2014 approximates fair value as the changes in their associated interest rates reflect the current market and credit risk is similar to when the loans were originally obtained.

The fair values of fixed rate mortgages were estimated using the discounted estimated future cash payments to be made on such debt; the discount rates used approximated current market rates for loans, or groups of loans, with similar maturities and credit quality (categorized within Level 2 of the fair value hierarchy). The combined carrying value of our fixed rate mortgages payable was approximately $182.3 million as of June 30, 2015 with a fair value of approximately $187.7 million. In determining the fair value, the Company estimated a weighted average market interest rate of approximately 3.53%, compared to the weighted average contractual interest rate of 5.10%. The combined carrying value of our fixed rate mortgages was approximately $153.4 million as of December 31, 2014 with a fair value of approximately $158.3 million. In determining the fair value as of December 31, 2014, the Company estimated a weighted average market interest rate of approximately 3.59%, compared to the weighted average contractual interest rate of 5.11%.

12. SUBSEQUENT EVENTS

Self Storage Property Acquisitions

In July and August 2015, the Company acquired 12 self storage properties with an estimated fair value of approximately $94 million. Consideration for these acquisitions included approximately $78 million of net cash and the issuance of OP equity of approximately $8.0 million (consisting of approximately 660,000 OP Units). Of these acquisitions, one was acquired by us from a PRO and 11 were acquired by us from third-party sellers. Certain of these self storage properties were acquired in DownREIT partnerships. The estimated fair value of noncontrolling interests associated with these partnerships was $8.3 million.

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ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

We make forward-looking statements in this report that are subject to risks and uncertainties. These forward-looking statements include information about possible or assumed future results of our business, financial condition, liquidity, results of operations, plans and objectives. When we use the words "believe," "expect," "anticipate," "estimate," "plan," "continue," "intend," "should," "may," or similar expressions, we intend to identify forward-looking statements.

The forward-looking statements contained in this report reflect our current views about future events and are subject to numerous known and unknown risks, uncertainties, assumptions, and changes in circumstances that may cause our actual results to differ significantly from those expressed in any forward-looking statement.

Statements regarding the following subjects, among others, may be forward-looking:

• market trends in our industry, interest rates, the debt and lending markets or the general economy;

• our business and investment strategy;

• the acquisition of properties, including the timing of acquisitions;

• our relationships with, and our ability to attract additional, PROs;

• our ability to effectively align the interests of our PROs with us and our shareholders;

• the integration of our PROs and their contributed portfolios into the Company, including into our financial and operational reporting infrastructure and internal control framework;

• our operating performance and projected operating results, including our ability to achieve market rents and occupancy levels, reduce operating expenditures and increase the sale of ancillary products and services;

• our ability to access additional off-market acquisitions;

• actions and initiatives of the U.S. federal, state and local government and changes to U.S. federal, state and local government policies and the execution and impact of these actions, initiatives and policies;

• the state of the U.S. economy generally or in specific geographic regions, states or municipalities;

• economic trends and economic recoveries;

• our ability to obtain and maintain financing arrangements on favorable terms;

• general volatility of the securities markets in which we participate;

• changes in the value of our assets;

• projected capital expenditures;

• the impact of technology on our products, operations, and business;

• the implementation of our technology and best practices programs (including our ability to effectively implement our integrated Internet marketing strategy);

• changes in interest rates and the degree to which our hedging strategies may or may not protect us from interest rate volatility;

• impact of and changes in governmental regulations, tax law and rates, accounting guidance and similar matters;

• our ability to qualify, and maintain our qualification, as a REIT for U.S. federal income tax purposes;

• our ability to successfully remediate the material weakness in our internal control over financial reporting;

• availability of qualified personnel;

• the timing of conversions of subordinated performance units into OP units and the conversion ratio in effect at such time;

• estimates relating to our ability to make distributions to our shareholders in the future; and

• our understanding of our competition.

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The forward-looking statements are based on our beliefs, assumptions and expectations of our future performance, taking into account all information currently available to us. Forward-looking statements are not predictions of future events. These beliefs, assumptions, and expectations can change as a result of many possible events or factors, not all of which are known to us. Readers should carefully review our financial statements and the notes thereto, as well as the section entitled "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations," and "Business and Properties" described in the Company's Prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on April 24, 2015 (the "Prospectus"), and the other documents we file from time to time with the Securities and Exchange Commission. If a change occurs, our business, financial condition, liquidity and results of operations may vary materially from those expressed in our forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Overview

National Storage Affiliates Trust is a Maryland real estate investment trust focused on the ownership, operation, and acquisition of self storage properties located within the top 100 metropolitan statistical areas throughout the United States. According to the 2014 Self-Storage Almanac, we are the sixth largest owner and operator of self storage properties in the United States based on number of properties, self storage units, and rentable square footage.

Our chief executive officer, Arlen D. Nordhagen, co-founded SecurCare Self Storage, Inc. in 1988 to invest in and manage self storage properties. While growing SecurCare to over 150 self storage properties, Mr. Nordhagen recognized a market opportunity for a differentiated public self storage REIT that would leverage the benefits of national scale by integrating multiple experienced regional self storage operators with local operational focus and expertise. We believe that his vision, which is the foundation of the Company, aligns the interests of our participating regional operators, or PROs, with those of our public shareholders by allowing our PROs to participate alongside our shareholders in our financial performance and the performance of our PROs' contributed portfolios. This structure offers our PROs an opportunity to serve as regional property managers for their contributed properties and directly participate in the potential upside of those properties while simultaneously diversifying their investment to include a broader portfolio of self storage properties.

Our PROs

The Company had six PROs as of June 30, 2015: SecurCare, Northwest, Optivest, Guardian, Move It, and Storage Solutions. We seek to expand our platform by recruiting additional established self storage operators, while integrating our operations through the implementation of centralized initiatives, including management information systems, revenue enhancement, and cost optimization programs. Our national platform allows us to capture cost savings by eliminating redundancies and utilizing economies of scale across the property management platforms of our PROs while also providing greater access to lower-cost capital.

Our Initial Public Offering

The Company completed its initial public offering on April 28, 2015, pursuant to which it sold 20,000,000 shares of the Company's common shares of beneficial interest, $0.01 par value per share, at a price of $13.00 per share. As part of the offering, the Company granted the underwriters an option to purchase up to 3,000,000 additional common shares within thirty days after the offering. The underwriters exercised their option and, on May 18, 2015, purchased an additional 3,000,000 common shares. These transactions resulted in net proceeds to the Company of approximately $278.1 million, after deducting the underwriting discount and before additional expenses associated with the offering.

We used a portion of the net proceeds from our initial public offering to repay $229.8 million of outstanding debt, which consisted of the $50.0 million unsecured term loan, $52.0 million US Bank senior term loan, $25.0 million mezzanine loan, $6.5 million US Bank senior term loan, and $96.3 million of the outstanding balance under our revolving line of credit.

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Properties

We seek to own properties that are well located in high quality sub-markets with highly accessible street access and attractive supply and demand characteristics, providing our properties with strong and stable cash flows that are less sensitive to the fluctuations of the general economy. Many of these markets have multiple barriers to entry against increased supply, including zoning restrictions against new construction and new construction costs that we believe are higher than our properties' fair market value.

We owned a geographically diversified portfolio of 246 self storage properties, located in 16 states, comprising approximately 13.6 million rentable square feet, configured in approximately 107,000 storage units, as of June 30, 2015. Of these properties, 199 were acquired by us from our PROs and 47 were acquired by us from third-party sellers.

Following the completion of our initial public offering during the three months ended June 30, 2015, we acquired 21 self storage properties located in seven states for an aggregate purchase price of $93.1 million, comprising approximately 1.3 million rentable square feet, configured in approximately 9,300 storage units. Of these acquisitions, four were acquired by us from our PROs and 17 were acquired by us from third-party sellers. In addition, during the three months ended March 31, 2015, we acquired six properties with an estimated fair value of $41.0 million, comprising approximately 0.4 million rentable square feet, configured in over 3,400 storage units All six of these acquisitions were acquired by us from our PROs.

Results of Operations

When reviewing our results of operations it is important to consider the timing of acquisition activity. We acquired 27 self storage properties during the six months ended June 30, 2015, and 83 self storage properties during the year ended December 31, 2014.

As a result of these and other factors, we do not believe that our historical results of operations discussed and analyzed below are necessarily indicative of our future results of operations or cash flows. To help analyze the operating performance of our self storage properties, we also discuss and analyze operating results relating to our same store portfolio. Our same store portfolio is defined as those properties owned and operated for the entirety of the applicable periods presented. Our 2015 same store portfolio consists of only those properties that were included in our consolidated results since January 1, 2014, excluding the property we sold in 2014.

The following discussion and analysis of the results of our operations and financial condition should be read in conjunction with the accompanying condensed consolidated financial statements in Item 1. Certain figures, such as interest rates and other percentages, included in this section have been rounded for ease of presentation. Percentage figures included in this section have not in all cases been calculated on the basis of such rounded figures but on the basis of such amounts prior to rounding. For this reason, percentage amounts in this section may vary slightly from those obtained by performing the same calculations using the figures in our consolidated financial statements or in the associated text. Certain other amounts that appear in this section may similarly not sum due to rounding.

Three Months Ended June 30, 2015 compared to the Three Months Ended June 30, 2014

Net income was $0.1 million for the three months ended June 30, 2015, compared to net loss of $6.2 million for the three months ended June 30, 2014, an increase of $6.3 million. The increase was primarily due to an increase in net operating income ("NOI") resulting from an additional 110 self storage properties we acquired during 2014 and 2015 and reductions in acquisition costs, partially offset by increases in depreciation and amortization and general and administrative expenses and a decrease in gain on sale of self storage properties. For a description of NOI, see "Non-GAAP Financial measures – NOI".

Overview

As of June 30, 2015, our same store portfolio consisted of 136 self storage properties. From January 1, 2014 to June 30, 2015, we acquired 110 self storage properties that do not yet meet the same store portfolio criteria. The following table illustrates the changes in rental revenue, other property-related revenue, property operating expenses, and other expenses for the three months ended June 30, 2015 compared to the three months ended June 30, 2014 (dollars in thousands):

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	Three Months Ended June 30,
	2015		2014			Change
Rental revenue
Same store portfolio	$	14,370	$	13,453		$	917
Non-Same store portfolio	16,262		2,340			13,922
Total rental revenue	30,632		15,793			14,839
Other property-related revenue
Same store portfolio	378		361			17
Non-Same store portfolio	640		61			579
Total other property-related revenue	1,018		422			596
Total revenue	31,650		16,215			15,435
Property operating expenses
Same store portfolio	5,110		5,194			(84		)
Non-Same store portfolio	5,716		839			4,877
Total property operating expenses	10,826		6,033			4,793
General and administrative expenses	4,187		1,796			2,391
Depreciation and amortization	9,974		4,697			5,277
Total operating expenses	24,987		12,526			12,461
Income from operations	6,663		3,689			2,974
Other (income) expense
Interest expense	4,824		4,723			101
Loss on early extinguishment of debt	914		1,020			(106		)
Acquisition costs	719		5,089			(4,370		)
Organizational and offering expenses	—		442			(442		)
Non-operating expense (income)	113		(1		)	114
Gain on sale of self storage properties	—		(1,426		)	1,426
Other (income) expense	6,570		9,847			(3,277		)
Net income (loss)	93		(6,158		)	6,251
Net loss attributable to noncontrolling interests	3,371		6,158			(2,787		)
Net income (loss) attributable to National Storage Affiliates Trust	$	3,464	$	—		$	3,464

Total Revenue

Our total revenue increased by $15.4 million, or 95.2%, for the three months ended June 30, 2015, as compared to the three months ended June 30, 2014. This increase was primarily attributable to incremental rental revenue from 73 self storage properties we acquired between July 1, 2014 and June 30, 2015 as well as an increase in average total portfolio occupancy from 85.6% to 87.7% and an increase in total portfolio average annualized contractual rent per occupied square foot from $9.60 to $10.57, which resulted from the acquisition of properties with higher rents, increased market rates, reduced discounting, and regular rental increases for in-place tenants.

Rental Revenue

Rental revenue increased by $14.8 million, or 94.0%, for the three months ended June 30, 2015, as compared to the three months ended June 30, 2014. The increase in rental revenue was primarily due to a $13.9 millionincrease in non-same store revenue which was attributable to incremental rental revenue of $9.2 million from an additional 52 self storage properties acquired between July 1, 2014 and March 31, 2015, and incremental rental revenue of $1.9 million from an additional 21 self storage properties acquired during the three months ended June 30, 2015. These increases were partially offset by a less than $0.1 million decrease in rental revenue related to a self storage property sold during the three months ended June 30, 2014. Same store portfolio revenues increased$0.9 million, or 6.8%, from an increase in average occupancy from 85.6% to 88.3%, and a 3.6%increase in same store average annualized rental revenue per occupied square foot from $9.56 to $9.90. The increase in same store average annualized rental revenue per occupied

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square foot was driven primarily by a 2.7%increase in same store average annualized contractual rent per occupied square foot from $9.47 to $9.73, which resulted from a combination of increased market rates, reduced discounting, and regular rental increases for in-place tenants.

Other Property-Related Revenue

Other property-related revenue represents ancillary income from our self storage properties, such as tenant insurance-related access fees and commissions and sales of storage supplies. Other property-related revenue increased by $0.6 million, or 141.2%, for the three months ended June 30, 2015, as compared to the three months ended June 30, 2014. This increase primarily resulted from a $0.6 millionincrease in non-same store other property-related revenue which was attributable to incremental other property-related revenue of $0.4 million from an additional 52 self storage properties acquired between July 1, 2014 and March 31, 2015, and incremental rental revenue of $0.1 million from an additional 21 self storage properties acquired during the three months ended June 30, 2015.

Total Operating Expenses

Total operating expenses for the three months ended June 30, 2015 were $25.0 million compared to $12.5 million for the three months ended June 30, 2014, an increase of $12.5 million, or 99.5%. As discussed below, this change was primarily due to an increase of $4.8 million in property operating expenses, $2.4 million in general and administrative expenses, and $5.3 million in depreciation and amortization.

Property Operating Expenses

Property operating expenses were $10.8 million for the three months ended June 30, 2015 compared to $6.0 million for the three months ended June 30, 2014, an increase of $4.8 million, or 79.4%. This increase resulted from a $4.9 millionincrease in non-same store property operating expenses attributable to incremental property operating expenses of $3.2 million from an additional 52 self storage properties acquired between July 1, 2014 and March 31, 2015, and incremental property operating expenses of $0.8 million from an additional 21 self storage properties acquired during the three months ended June 30, 2015. In addition, same store portfolio property operating expenses decreased$0.1 million, or 1.6%, due to decreases in bad debt expense, maintenance expenses, and marketing costs partially offset by increases in property taxes.

General and Administrative Expenses

General and administrative expenses increased$2.4 million, or 133.1%, for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. This increase was primarily attributable to increases in (i) salaries and benefits of $1.2 million, consisting of $0.5 million related to additional personnel and $0.7 million associated with equity-based compensation, (ii) supervisory and administrative fees charged by our PROs of $0.9 million, and (iii) professional fees and other expenses of $0.3 million that were primarily related to increased audit and tax costs associated with the growth of our portfolio and periodic SEC reporting and other compliance matters.

Supervisory and administrative fees charged by our PROs totaled $1.8 million and $0.9 million for the three months ended June 30, 2015 and 2014, respectively, an increase of $0.9 million. The increase was primarily attributable to incremental fees related to the 73 properties we acquired from July 1, 2014 to June 30, 2015.

Depreciation and Amortization

Depreciation and amortization increased$5.3 million, or 112.3%, for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. This increase was primarily attributable to incremental depreciation expense of $2.5 million related to the 52 self storage properties acquired between July 1, 2014 and March 31, 2015, and $0.3 million of depreciation expense related to the 21 properties acquired during the three months ended June 30, 2015. In addition, amortization of customer in-place leases increased $1.7 million from $1.6 million for the three months ended June 30, 2014 to $3.3 million for the three months ended June 30, 2015. Customer in-place leases are amortized over the 12-month period following the respective acquisition dates of our self storage properties. As of June 30, 2015, the unamortized balance of customer in-place leases totaled $5.0 million.

Interest Expense

Interest expense increased$0.1 million, or 2.1%, for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. The increase in interest expense was due to an increase in weighted average borrowings outstanding offset by a decrease in amortization of debt issuance costs of $0.1 million, a decrease in the effect of non-designated interest rate swaps of $0.3 million, and decreases in interest rates.

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Loss On Early Extinguishment of Debt

Loss on early extinguishment of debt decreased$0.1 million, or 10.4%, for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. The decrease was due to a $0.2 million decrease in prepayment penalties partially offset by $0.1 million increase in write-offs of unamortized debt issuance costs. Loss on early extinguishment of debt during the three months ended June 30, 2015 relates to the payoff of several debt instruments in connection with the Company's initial public offering.

Acquisition Costs

Acquisition costs decreased$4.4 million, or 85.9%, for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. This decrease was primarily due to a decrease in consulting fees and other costs incurred to identify, qualify, and close acquisition properties with our PROs and other parties.

Organizational and Offering Expenses

Organizational and offering expenses decreased $0.4 million for the three months ended June 30, 2015, compared to the three months ended June 30, 2014. This decrease was primarily attributable to audit fees incurred during the three months ended June 30, 2014 associated with the operations of the properties acquired during 2014 for periods preceding the related contribution and formation transactions.

Gain on sale of self storage properties

Gain on sale of self storage properties totaled $1.4 million for the three months ended June 30, 2014. In May 2014, we sold to an unrelated party one of the self-storage properties contributed by our predecessor. The gross selling price for the property was approximately $3.0 million and net proceeds from this sale were invested in the acquisition of another self-storage property in a tax-deferred exchange.

Net Loss Attributable to Noncontrolling Interests

Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to noncontrolling interests. Net loss attributable to noncontrolling interests was $3.4 million for the three months ended June 30, 2015, compared to $6.2 million for the three months ended June 30, 2014. Our entire net loss for the three months ended June 30, 2014 was attributable to noncontrolling interests as we did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of our initial public offering.

Six Months Ended June 30, 2015 compared to the Six Months Ended June 30, 2014

Net loss decreased by $6.3 million during the six months ended June 30, 2015, as compared to the six months ended June 30, 2014. The decrease in net loss was primarily due to an increase in NOI resulting from an additional 110 self storage properties we acquired during 2014 and 2015 and reductions in acquisition costs, partially offset by increases in depreciation and amortization, general and administrative expenses, interest expense, and a decrease in gain on sale of self storage properties.

Overview

As of June 30, 2015, our same store portfolio consisted of 136 self storage properties. From January 1, 2014 to June 30, 2015, we acquired 110 self storage properties that do not yet meet the same store portfolio criteria. The following table illustrates the changes in rental revenue, other property-related revenue, property operating expenses, and other expenses for the six months ended June 30, 2015 compared to the six months ended June 30, 2014 (dollars in thousands):

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	Six Months Ended June 30,
	2015			2014			Change
Rental revenue
Same store portfolio	$	28,075		$	26,176		$	1,899
Non-Same store portfolio	29,975			2,473			27,502
Total rental revenue	58,050			28,649			29,401
Other property-related revenue
Same store portfolio	728			665			63
Non-Same store portfolio	1,163			62			1,101
Total other property-related revenue	1,891			727			1,164
Total revenue	59,941			29,376			30,565
Property operating expenses
Same store portfolio	10,138			9,971			167
Non-Same store portfolio	10,530			984			9,546
Total property operating expenses	20,668			10,955			9,713
General and administrative expenses	7,800			3,134			4,666
Depreciation and amortization	19,851			8,534			11,317
Total operating expenses	48,319			22,623			25,696
Income from operations	11,622			6,753			4,869
Other (income) expense
Interest expense	11,806			10,169			1,637
Loss on early extinguishment of debt	914			1,020			(106		)
Acquisition costs	1,318			5,271			(3,953		)
Organizational and offering expenses	58			677			(619		)
Non-operating expense (income)	204			3			201
Gain on sale of self storage properties	—			(1,426		)	1,426
Other (income) expense	14,300			15,714			(1,414		)
Net loss	(2,678		)	(8,961		)	6,283
Net loss attributable to noncontrolling interests	6,142			8,961			(2,819		)
Net income (loss) attributable to National Storage Affiliates Trust	$	3,464		$	—		$	3,464

Total Revenue

Our total revenue increased by $30.6 million, or 104.0%, for the six months ended June 30, 2015, as compared to the six months ended June 30, 2014. This increase was primarily attributable to incremental rental revenue from 73 self storage properties we acquired between July 1, 2014 and June 30, 2015 as well as an increase in average total portfolio occupancy from 84.5% to 86.5% and an increase in total portfolio average annualized contractual rent per occupied square foot from $9.49 to $10.49, which resulted from the acquisition of properties with higher rents, increased market rates, reduced discounting, and regular rental increases for in-place tenants.

Rental Revenue

Rental revenue increased by $29.4 million, or 102.6%, for the six months ended June 30, 2015, as compared to the six months ended June 30, 2014. The increase in rental revenue was primarily due to a $27.5 millionincrease in non-same store revenue which was attributable to incremental rental revenue of $15.6 million from an additional 46 self storage properties acquired between July 1, 2014 and December 31, 2014, and incremental rental revenue of $4.3 million from an additional 27 self storage properties acquired during the six months ended June 30, 2015. These increases were partially offset by a $0.1 million decrease in rental revenue related to a self storage property sold during the three months ended June 30, 2014. Same store portfolio revenues increased$1.9 million, or 7.3%, from an increase in average occupancy from 84.4% to 87.0%, and a 4.0%increase in same store average annualized rental revenue per

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occupied square foot from $9.43 to $9.81. The increase in same store average annualized rental revenue per occupied square foot was driven primarily by a 2.8%increase in same store average annualized contractual rent per occupied square foot from $9.43 to $9.69, which resulted from a combination of increased market rates, reduced discounting, and regular rental increases for in-place tenants.

Other Property-Related Revenue

Other property-related revenue represents ancillary income from our self storage properties, such as tenant insurance-related access fees and commissions and sales of storage supplies. Other property-related revenue increased by $1.2 million, or 160.1%, for the six months ended June 30, 2015, as compared to the six months ended June 30, 2014. This increase primarily resulted from a $1.1 millionincrease in non-same store other property-related revenue which was attributable to incremental other property-related revenue of $0.7 million from an additional 46 self storage properties acquired between July 1, 2014 and December 31, 2014, and incremental rental revenue of $0.2 million from an additional 27 self storage properties acquired during the six months ended June 30, 2015.

Total Operating Expenses

Total operating expenses for the six months ended June 30, 2015 were $48.3 million compared to $22.6 million for the six months ended June 30, 2014, an increase of $25.7 million, or 113.6%. As discussed below, this change was primarily due to an increase of $9.7 million in property operating expenses, $4.7 million in general and administrative expenses, and $11.3 million in depreciation and amortization.

Property Operating Expenses

Property operating expenses were $20.7 million for the six months ended June 30, 2015 compared to $11.0 million for the six months ended June 30, 2014, an increase of $9.7 million, or 88.7%. This increase resulted from a $9.5 millionincrease in non-same store property operating expenses attributable to incremental property operating expenses of $5.2 million from an additional 46 self storage properties acquired between July 1, 2014 and December 31, 2014, and incremental property operating expenses of $1.9 million from an additional 27 self storage properties acquired during the six months ended June 30, 2015. In addition same store portfolio property operating expenses increased$0.2 million, or 1.7%, due to increases in bad debt expense, property taxes, and personnel and related costs, partially offset by decreases in marketing costs.

General and Administrative Expenses

General and administrative expenses increased$4.7 million, or 148.9%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. This increase was primarily attributable to increases in (i) salaries and benefits of $2.0 million, consisting of $1.0 million related to additional personnel and $1.0 million associated with equity-based compensation, (ii) supervisory and administrative fees charged by our PROs of $1.7 million, and (iii) professional fees and other expenses of $1.0 million that were primarily related to increased audit and tax costs associated with the growth of our portfolio and periodic SEC reporting and other compliance matters.

Supervisory and administrative fees charged by our PROs totaled $3.4 million and $1.7 million for the six months ended June 30, 2015 and 2014, respectively, an increase of $1.7 million. The increase was attributable to incremental fees related to the properties we acquired during the year ended December 31, 2014 and the six months ended June 30, 2015.

Depreciation and Amortization

Depreciation and amortization increased$11.3 million, or 132.6%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. This increase was attributable to incremental depreciation expense of $4.4 million related to the 46 self storage properties acquired between July 1, 2014 and December 31, 2014, and $0.9 million of depreciation expense related to the 27 properties acquired during the six months ended June 30, 2015. In addition, amortization of customer in-place leases increased $3.8 million from $3.1 million for the six months ended June 30, 2014 to $6.9 million for the six months ended June 30, 2015. Customer in-place leases are amortized over the 12-month period following the respective acquisition dates of our self storage properties. As of June 30, 2015, the unamortized balance of customer in-place leases totaled $5.0 million.

Interest Expense

Interest expense increased$1.6 million, or 16.1%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. The increase in interest expense was due to an increase in weighted average borrowings

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outstanding, an increase in amortization of debt issuance costs of $0.5 million, and a decrease in the effect of non-designated interest rate swaps of $0.2 million, partially offset by decreases in interest rates.

Loss On Early Extinguishment of Debt

Loss on early extinguishment of debt decreased$0.1 million, or 10.4%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. The decrease was due to a $0.2 million decrease in prepayment penalties partially offset by $0.1 million increase in write-offs of unamortized issuance costs. Loss on early extinguishment of debt during the six months ended June 30, 2015 relates to the payoff of several debt instruments in connection with the Company's initial public offering.

Acquisition Costs

Acquisition costs decreased$4.0 million, or 75.0%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. This decrease was primarily due to a decrease in consulting fees and other costs incurred to identify, qualify, and close acquisition properties with our PROs and other parties.

Organizational and Offering Expenses

Organizational and offering expenses decreased$0.6 million, or 91.4%, for the six months ended June 30, 2015, compared to the six months ended June 30, 2014. This decrease was primarily attributable to audit fees incurred during the six months ended June 30, 2014 associated with the operations of the properties acquired during 2014 for periods preceding the related contribution and formation transactions.

Gain on sale of self storage properties

Gain on sale of self storage properties totaled $1.4 million for the six months ended June 30, 2014. In May 2014, we sold to an unrelated party one of the self-storage properties contributed by our predecessor. The gross selling price for the property was approximately $3.0 million and net proceeds from this sale were invested in the acquisition of another self-storage property in a tax-deferred exchange.

Net Loss Attributable to Noncontrolling Interests

Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to noncontrolling interests. Net loss attributable to noncontrolling interests was $6.1 million for the six months ended June 30, 2015, compared to $9.0 million for the six months ended June 30, 2014. Our entire net loss for the six months ended June 30, 2014 was attributable to noncontrolling interests as we did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of our initial public offering.

Critical Accounting Policies and Use of Estimates

We prepare our consolidated financial statements in accordance with GAAP, which requires us to make estimates and assumptions. We believe that the following critical accounting policies involve our more significant judgments and estimates used in the preparation of our consolidated financial statements.

Principles of Consolidation and Presentation of Noncontrolling Interests

Our consolidated financial statements include the accounts of our operating partnership and its controlled subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation and combination of entities.

The limited partner ownership interests in our operating partnership that are held by owners other than us are referred to as noncontrolling interests. Noncontrolling interests also include ownership interests in DownREIT partnerships held by entities other than our operating partnership. Noncontrolling interests in a subsidiary are generally reported as a separate component of equity in our consolidated balance sheets. In our statements of operations, the revenues, expenses and net income or loss related to noncontrolling interests in our operating partnership are included in the consolidated amounts, with net income or loss attributable to the noncontrolling interests deducted separately to arrive at the net income or loss solely attributable to us.

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When we obtain an economic interest in an entity, we evaluate the entity to determine if the entity is deemed a VIE, and if we are deemed to be the primary beneficiary, in accordance with authoritative guidance issued on the consolidation of VIEs. When an entity is not deemed to be a VIE, we consider the provisions of additional guidance to determine whether the general partner controls a limited partnership or similar entity when the limited partners have certain rights. We consolidate (i) entities that are VIEs and of which we are deemed to be the primary beneficiary, and (ii) entities that are non-VIEs which the Company controls and which, limited partners lack both substantive participating rights and the ability to dissolve or remove the Company without cause.

Self Storage Properties and Customer In-Place Leases

Self storage properties are carried at historical cost less accumulated depreciation and any impairment losses. Expenditures for ordinary repairs and maintenance are expensed as incurred. Major replacements and betterments that improve or extend the life of an asset are capitalized. Estimated depreciable lives of self storage properties are determined by considering the age and other indicators about the condition of the assets at the respective dates of acquisition, resulting in a range of estimated useful lives for assets within each category. All self storage properties are depreciated using the straight-line method. Buildings and improvements are generally depreciated over estimated useful lives between seven and 40 years. Furniture and equipment are generally depreciated over estimated useful lives between three and 10 years.

When self storage properties are acquired in business combinations, the purchase price (including any equity-based consideration issued in connection with the acquisition) is allocated to the tangible and intangible assets acquired and liabilities assumed based on estimated fair values. The purchase price is allocated to the individual properties based on the fair value determined using an income approach or a cash flow analysis using appropriate risk adjusted capitalization rates, which take into account the relative size, age, and location of the individual properties along with current and projected occupancy and relative rental rates or appraised values, if available. Tangible assets are allocated to land, buildings and related improvements, and furniture and equipment.

In allocating the purchase price for an acquisition accounted for as a business combination, we determine whether the acquisition includes intangible assets. We allocate a portion of the purchase price to an intangible asset attributed to the value of customer in-place leases. Because the majority of tenant leases are on a month-to-month basis, this intangible asset represents the estimated value of the leases in effect on the acquisition date. This intangible asset is amortized to expense using the straight-line method over 12 months, the estimated average rental period for our customers.

Impairment of Long-Lived Assets

The Company evaluates long-lived assets for impairment when events and circumstances indicate that there may be an impairment. When events or changes in circumstances indicate that the Company's long-lived assets may not be recoverable, the carrying value of these long-lived assets is compared to the undiscounted future net operating cash flows, plus a terminal value attributable to the assets. If an asset's carrying value is not considered recoverable, an impairment loss is recorded to the extent the net carrying value of the asset exceeds the fair value.

Revenue Recognition

We have determined that all of our leases are operating leases. Substantially all leases may be terminated on a month-to-month basis and rental income is recognized ratably over the lease term using the straight-line method. Rents received in advance are deferred and recognized on a straight-line basis over the related lease term associated with the prepayment. Promotional discounts and other incentives are recognized as a reduction to rental income over the applicable lease term. Other property-related revenue consists of ancillary revenues such as tenant insurance-related access fees, commissions, and sales of storage supplies which are recognized in the period earned.

We recognize gains from disposition of facilities only upon closing in accordance with the guidance on sales of real estate. Payments received from purchasers prior to closing are recorded as deposits. Profit on real estate sold is recognized using the full accrual method upon closing when the collectability of the sales price is reasonably assured and we are not obligated to perform significant activities after the sale. Profit may be deferred in whole or part until the sale meets the requirements of profit recognition on sales under this guidance.

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Income Taxes

We intend to elect to be taxed as a REIT under sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the "Code") commencing with our taxable year ending December 31, 2015. To qualify as a REIT, among other things, we are required to distribute at least 90% of our net taxable income (excluding net capital gains) to our shareholders and meet certain tests regarding the nature of our income and assets. So long as we qualify as a REIT, we are not subject to U.S. federal income tax on our earnings distributed currently to our shareholders. If we fail to qualify as a REIT in any taxable year, and are unable to avail ourselves of certain provisions set forth in the Code, all of our taxable income would be subject to federal and state income taxes at regular corporate rates, including any applicable alternative minimum tax.

We will not be required to make distributions with respect to income derived from the activities conducted through subsidiaries that we elect to treat as taxable REIT subsidiaries, or TRSs, for U.S. federal income tax purposes, including NSA TRS, LLC which we formed in June 2014. Certain activities that we undertake must be conducted by a TRS, such as performing non-customary services for our customers and holding assets that we are not permitted to hold directly, including personal property held as inventory. A TRS is subject to U.S. federal, state, and local income taxes.

Earnings and profits, which determine the taxability of distributions to shareholders, differ from net income reported for financial reporting purposes due to differences in cost basis, the estimated useful lives used to compute depreciation, and the allocation of net income and loss for financial versus tax reporting purposes.

Non-GAAP Financial Measures

FFO and Core FFO

Funds from operations, or FFO, is a widely used performance measure for real estate companies and is provided here as a supplemental measure of our operating performance. The April 2002 National Policy Bulletin of NAREIT, which we refer to as the White Paper, as amended, defines FFO as net income (loss) (as determined under GAAP), excluding gains (or losses) from sales of real estate and related impairment charges, plus real estate depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures. We include amortization of customer in-place leases in real estate depreciation and amortization in the calculation of FFO because we believe the amortization of customer in-place leases is analogous to real estate depreciation, as the value of such intangibles is inextricably connected to the real estate acquired. Distributions on subordinated performance units and DownREIT subordinated performance units represent our allocation of FFO to noncontrolling interests held by subordinated performance unitholders and DownREIT subordinated performance unitholders for the purpose of calculating FFO attributable to common shareholders, OP unitholders, and LTIP unitholders. We define Core FFO as FFO, as further adjusted to eliminate the impact of certain items that we do not consider indicative of our core operating performance. These further adjustments consist of acquisition costs, organizational and offering costs, gains on debt forgiveness and gains (losses) on early extinguishment of debt.

Management uses FFO and Core FFO as a key performance indicator in evaluating the operations of our properties. Given the nature of our business as a real estate owner and operator, we consider FFO and Core FFO as key supplemental measures of our operating performance that are not specifically defined by GAAP. We believe that FFO and Core FFO are useful to management and investors as a starting point in measuring our operational performance because FFO and Core FFO exclude various items included in net income (loss) that do not relate to or are not indicative of our operating performance such as gains (or losses) from sales of self storage properties and depreciation, which can make periodic and peer analyses of operating performance more difficult. Our computation of FFO and Core FFO may not be comparable to FFO reported by other REITs or real estate companies.

FFO and Core FFO should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues, operating income and net income (loss). FFO and Core FFO do not represent cash generated from operating activities determined in accordance with GAAP and are not a measure of liquidity or an indicator of our ability to make cash distributions. We believe that to further understand our performance, FFO and Core FFO should be compared with our reported net income (loss) and considered in addition to cash flows computed in accordance with GAAP, as presented in our consolidated financial statements.

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The following table presents a reconciliation of net loss to FFO and Core FFO for the three and six months ended June 30, 2015 and 2014 (in thousands, except per share and unit amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Net income (loss)	$	93		$	(6,158	)	$	(2,678	)	$	(8,961	)
Add (subtract):
Real estate depreciation and amortization	9,889			4,733			19,695			8,534
Gain on sale of self storage properties	—			(1,426		)	—			(1,426		)
FFO attributable to subordinated performance unitholders (1)	(3,144		)	(1,426		)	(6,419		)	(2,052		)
FFO attributable to common shareholders, OP unitholders, and LTIP unitholders	6,838			(4,277		)	10,598			(3,905		)
Add:
Acquisition costs	719			5,089			1,318			5,271
Organizational and offering expenses	—			442			58			677
Loss on early extinguishment of debt	914			1,020			914			1,020
Core FFO attributable to common shareholders, OP unitholders, and LTIP unitholders	$	8,471		$	2,274		$	12,888		$	3,063
Weighted average shares and units outstanding - FFO and Core FFO: (2)
Weighted average shares outstanding - basic	15,517			1			7,802			1
Weighted average OP units outstanding (3)	20,208			11,552			19,710			10,413
Weighted average DownREIT OP unit equivalents outstanding	1,415			—			1,401			—
Weighted average LTIP units outstanding (4)	1,553			—			781			—
Total weighted average shares and units outstanding - FFO and Core FFO	38,693			11,553			29,694			10,414
FFO per share and unit	$	0.18		$	(0.37	)	$	0.36		$	(0.37	)
Core FFO per share and unit	$	0.22		$	0.20		$	0.43		$	0.29

(1) Amounts represent distributions declared for subordinated performance unitholders and DownREIT subordinated performance unitholders for the periods presented. For the three months ended June 30, 2014, these distributions were declared and paid to unitholders of record as of June 30, 2014 during the period subsequent to June 30, 2014, and therefore the amounts are not reflected in the historical financial statements for the periods presented.

(2) NSA combines OP units and DownREIT OP units with common shares because, after the applicable lock-out periods, OP units in the Company's operating partnership are redeemable for cash or, at NSA's option, exchangeable for common shares on a one-for-one basis and DownREIT OP units are also redeemable for cash or, at NSA's option, exchangeable for OP units in our operating partnership on a one-for-one basis, subject to certain adjustments in each case. Subordinated performance units, DownREIT subordinated performance units, and LTIP units may also, under certain circumstances, be convertible into or exchangeable for common shares (or other units that are convertible into or exchangeable for common shares). Subordinated performance units and DownREIT subordinated units have been excluded from the calculations of FFO and Core FFO per share and unit as their effect is anti-dilutive.

(3) Amount for the six months ended June 30, 2014 includes 2,060,711 OP units outstanding for the entire period which were issued in connection with the contribution of 65 self storage properties on April 1, 2014 by SecurCare Portfolio Holdings, LLC and SecurCare Value Properties, Ltd. (collectively, "NSA Predecessor"), entities whose principal owner is the Company's chief executive officer. For financial reporting purposes, NSA Predecessor contributions are reported as a reorganization of entities under common control whereby the contributed self storage properties are included in the Company's results of operations for the entirety of the six months ended June 30, 2014 and have been recorded in the Company's financial statements at NSA Predecessor's depreciated historical cost basis.

(4) LTIP units have been excluded from the calculations of weighted average shares and units outstanding prior to April 28, 2015 because such units did not participate in distributions prior to the Company’s initial public offering.

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NOI

We define NOI as net income (loss), as determined under GAAP, plus general and administrative expense, depreciation and amortization, interest expense, loss on early extinguishment of debt, acquisition costs, organizational and offering expenses, impairment of long-lived assets, losses on the sale of properties and non-operating expense and by subtracting gains on sale of properties, debt forgiveness, and non-operating income. NOI is not a measure of performance calculated in accordance with GAAP.

We believe NOI is useful to investors in evaluating our operating performance because:

• NOI is one of the primary measures used by our management and our PROs to evaluate the economic productivity of our properties, including our ability to lease our properties, increase pricing and occupancy and control our property operating expenses;

• NOI is widely used in the real estate industry and the self storage industry to measure the performance and value of real estate assets without regard to various items included in net income that do not relate to or are not indicative of operating performance, such as depreciation and amortization, which can vary depending upon accounting methods, the book value of assets, and the impact of our capital structure; and

• We believe NOI helps our investors to meaningfully compare the results of our operating performance from period to period by removing the impact of our capital structure (primarily interest expense on our outstanding indebtedness) and depreciation of the cost basis of our assets from our operating results.

There are material limitations to using a non-GAAP measure such as NOI, including the difficulty associated with comparing results among more than one company and the inability to analyze certain significant items, including depreciation and interest expense, that directly affect our net loss. We compensate for these limitations by considering the economic effect of the excluded expense items independently as well as in connection with our analysis of net income (loss). NOI should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues, income from operations and net loss.

The following table presents a reconciliation of net loss to NOI for the three and six months ended June 30, 2015 and 2014 (dollars in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Net income (loss)	$	93	$	(6,158	)	$	(2,678	)	$	(8,961	)
Add:
General and administrative expenses	4,187		1,796			7,800			3,134
Depreciation and amortization	9,974		4,697			19,851			8,534
Interest expense	4,824		4,723			11,806			10,169
Loss on early extinguishment of debt	914		1,020			914			1,020
Acquisition costs	719		5,089			1,318			5,271
Organizational and offering expenses	—		442			58			677
Gain on sale of self storage properties	—		(1,426		)	—			(1,426		)
Non-operating expense (income)	113		(1		)	204			3
Net Operating Income	$	20,824	$	10,182		$	39,273		$	18,421

EBITDA and Adjusted EBITDA

We define EBITDA as net income (loss), as determined under GAAP, plus interest expense, loss on early extinguishment of debt, income taxes, depreciation and amortization expense. We define Adjusted EBITDA as EBITDA plus acquisition costs, organizational and offering expenses, equity-based compensation expense, losses on sale of properties, and impairment of long-lived assets; and by subtracting gains on sale of properties and debt forgiveness. These further adjustments eliminate the impact of items that we do not consider indicative of our core operating performance. In evaluating EBITDA and Adjusted EBITDA, you should be aware that in the future we may incur expenses that are the same as or similar to some of the adjustments in this presentation. Our presentation of EBITDA

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and Adjusted EBITDA should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items.

We present EBITDA and Adjusted EBITDA because we believe they assist investors and analysts in comparing our performance across reporting periods on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. EBITDA and Adjusted EBITDA have limitations as an analytical tool. Some of these limitations are:

• EBITDA and Adjusted EBITDA do not reflect our cash expenditures, or future requirements, for capital expenditures, contractual commitments or working capital needs;

• EBITDA and Adjusted EBITDA do not reflect the significant interest expense, or the cash requirements necessary to service interest or principal payments, on our debts;

• although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and EBITDA and Adjusted EBITDA do not reflect any cash requirements for such replacements;

• Adjusted EBITDA excludes equity-based compensation expense, which is and will remain a key element of our overall long-term incentive compensation package, although we exclude it as an expense when evaluating our ongoing operating performance for a particular period;

• EBITDA and Adjusted EBITDA do not reflect the impact of certain cash charges resulting from matters we consider not to be indicative of our ongoing operations; and

• other companies in our industry may calculate EBITDA and Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

We compensate for these limitations by considering the economic effect of the excluded expense items independently as well as in connection with our analysis of net income (loss). EBITDA and Adjusted EBITDA should be considered in addition to, but not as a substitute for, other measures of financial performance reported in accordance with GAAP, such as total revenues, income from operations, and net income (loss).

The following table presents a reconciliation of net loss to EBITDA and Adjusted EBITDA for the three and six months ended June 30, 2015 and 2014 (dollars in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Net income (loss)	$	93	$	(6,158	)	$	(2,678	)	$	(8,961	)
Add:
Depreciation and amortization	9,974		4,697			19,851			8,534
Interest expense	4,824		4,723			11,806			10,169
Loss on early extinguishment of debt	914		1,020			914			1,020
EBITDA	15,805		4,282			29,893			10,762
Add:
Acquisition costs	719		5,089			1,318			5,271
Organizational and offering expenses	—		442			58			677
Gain on sale of self storage properties	—		(1,426		)	—			(1,426		)
Equity-based compensation expense (1)	1,083		342			1,721			684
Adjusted EBITDA	$	17,607	$	8,729		$	32,990		$	15,968
(1) Equity-based compensation expense is a non-cash item that is included in general and administrative expenses in our condensed consolidated statements of operations.

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Liquidity and Capital Resources

Liquidity is the ability to meet present and future financial obligations. Our primary source of liquidity is cash flow from our operations. Additional sources are proceeds from equity offerings, debt offerings, and our borrowings under our credit facility.

Our short-term liquidity requirements consist primarily of property operating expenses, property acquisitions, capital expenditures, general and administrative expenses, acquisition pursuit costs and principal and interest on our outstanding indebtedness. A further short-term liquidity requirement relates to distributions to our shareholders and holders of OP units, subordinated performance units, DownREIT OP units and DownREIT subordinated performance units. We expect to fund short-term liquidity requirements from our operating cash flow, cash on hand and borrowings under our credit facility.

As of June 30, 2015, our credit facility provides for total borrowings of $425.0 million, consisting of a $144.6 million term loan and a $280.4 million revolving line of credit. As of June 30, 2015, we had $80.9 million of outstanding borrowings under our revolving line of credit, and we had the capacity to borrow $199.5 million, subject to the borrowing base calculation. The term loan matures in March 2018 and the revolving line of credit matures in March 2017. The term loan bears interest at one-month LIBOR plus 1.50% (an effective rate of 2.75% per annum as of June 30, 2015) and the revolving line of credit bears interest at one-month LIBOR plus 1.60% (an effective rate of 1.79% per annum as of June 30, 2015).

As discussed in Note 7 to the condensed consolidated financial statements in Item 1, during the three months ended June 30, 2015, we repaid $96.3 million of the outstanding balance under our revolving line of credit using net proceeds from our initial public offering. As a result of our initial public offering, our secured credit facility became unsecured. In addition, as a result of the overall reduction in the Company's outstanding indebtedness from debt repayments, the pricing grids for the revolving line of credit and term loan were reduced by 100 basis points to interest rates equal to one-month LIBOR plus 1.60% and one-month LIBOR plus 1.50%, respectively.

We are also required to comply with financial covenants under our credit facility which include financial covenants that, among other things, cap our total leverage at 60%, requires us to have a minimum fixed charge coverage ratio of 1.5 to 1, and requires us to have a minimum net worth (as defined in our credit facility) of approximately $133.3 million plus 75% of the net proceeds of equity issuances. Our ability to borrow may also be limited by additional restrictions that may be imposed by lenders. Our ability to access the equity capital markets will be dependent on a number of factors as well, including general market conditions for REITs and market perceptions about us.

Our long-term liquidity needs consist primarily of the repayment of debt, property acquisitions, and capital expenditures. We expect to meet our long-term liquidity requirements with operating cash flow, cash on hand, secured and unsecured indebtedness, and the issuance of equity and debt securities. We acquire properties through the use of cash, OP units and subordinated performance units in our operating partnership or DownREIT partnerships. We believe that, as a publicly-traded REIT, we will have access to multiple sources of capital to fund our long-term liquidity requirements, including the incurrence of additional debt and the issuance of debt and additional equity securities. However, as a new public company, we cannot assure you that this will be the case.

At June 30, 2015, we had $6.1 million in cash and cash equivalents and $3.1 million of restricted cash, a decrease in cash and cash equivalents of $3.0 million and an increase in restricted cash of $1.0 million from December 31, 2014. Restricted cash primarily consists of escrowed funds deposited with financial institutions for real estate taxes, insurance, and other reserves for capital improvements in accordance with our loan agreements.

The following discussion relates to changes in cash due to operating, investing, and financing activities, which are presented in our condensed consolidated statements of cash flows included in Item 1 of this report.

Cash Flows From Operating Activities

Cash provided by our operating activities was $21.0 million for the six months ended June 30, 2015 compared to $5.9 million for the six months ended June 30, 2014, an increase of $15.1 million. Our operating cash flow increased primarily due to 46 self storage properties that were acquired between July 2014 and December 2014 that generated cash flow for the entire six months ended June 30, 2015, and an additional 27 self storage properties acquired during the six months ended June 30, 2015. Because these 73 self storage properties were acquired after June 30, 2014, our operating results for the six months ended June 30, 2014 were not impacted by them. The increase in our operating cash flows from these acquisitions was partially offset by higher cash payments for interest expense and general and administrative expenses.

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Cash Flows From Investing Activities

Cash used in investing activities was $49.5 million for the six months ended June 30, 2015 compared to $100.8 million for the six months ended June 30, 2014. The primary uses of cash for the six months ended June 30, 2015 were for our acquisition of 27 self storage properties for cash consideration of $47.5 million and capital expenditures of $2.0 million. The primary uses of cash for the six months ended June 30, 2014 were for our acquisition of 37 self storage properties for cash consideration of $89.9 million, deposits and advances of $7.5 million, loans to related parties of $4.8 million associated with subsequent self storage property acquisitions, and capital expenditures of $1.8 million.

Capital expenditures totaled $2.0 million and $1.8 million during the six months ended June 30, 2015 and 2014, respectively. We generally fund post-acquisition capital additions from cash provided by operating activities.

We categorize our capital expenditures broadly into three primary categories:

• recurring capital expenditures, which represent the portion of capital expenditures that are deemed to replace the consumed portion of acquired capital assets;

• revenue enhancing capital expenditures, which represent the portion of capital expenditures that are made to enhance the revenue, value, or useful life of an asset from its original purchase condition; and

• acquisitions capital expenditures, which represent the portion of capital expenditures capitalized during the current period that were identified and underwritten prior to a property's acquisition.

A summary of the capital expenditures for these categories, along with a reconciliation of the total for these categories to the capital expenditures reported in the accompanying condensed consolidated statements of cash flows for the six months ended June 30, 2015 and 2014, are presented below (dollars in thousands):

	Six Months Ended June 30,
	2015		2014
Recurring capital expenditures	$	1,079	$	362
Revenue enhancing capital expenditures	693		—
Acquisitions capital expenditures	142		1,670
Total capital expenditures	1,914		2,032
Decrease (increase) in accrued capital spending	86		(220		)
Capital expenditures per statement of cash flows	$	2,000	$	1,812

Cash Flows From Financing Activities

Cash provided by our financing activities was $25.6 million for the six months ended June 30, 2015 compared to $98.0 million for the six months ended June 30, 2014. Our sources of financing cash flows for the six months ended June 30, 2015 primarily consisted of $278.1 million of proceeds from the completion of our initial public offering, as discussed further below, and $21.0 million of borrowings under our credit facility. Our primary uses of financing cash flows for the six months ended June 30, 2015 were for principal payments on existing debt of $257.1 million and distributions to limited partners of our operating partnership of $14.7 million. Our sources of financing cash flows for the six months ended June 30, 2014 primarily consisted of $245.4 million of borrowings under our credit facility and unsecured term loan. Our primary uses of financing cash flows for the six months ended June 30, 2014 were for distributions to limited partners of our operating partnership of $3.6 million and principal payments on existing debt of $143.6 million.

As discussed in Note 1 to the condensed consolidated financial statements in Item 1, during the three months ended June 30, 2015, we completed an initial public offering of 23,000,000 common shares, at a price of $13.00 per share, including shares issued pursuant to the underwriters' option to purchase additional shares which was exercised in full, and received net proceeds of $278.1 million, after deducting the underwriting discount and before additional expenses associated with the offering.

We contributed the net proceeds of this offering to our operating partnership in exchange for 23,000,000 OP units. As discussed in Note 7 to the condensed consolidated financial statements in Item 1, our operating partnership used the net proceeds to repay $229.8 million of outstanding debt, which consisted of the $50.0 million unsecured term loan,

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$52.0 million US Bank senior term loan, $25.0 million mezzanine loan, $6.5 million US Bank senior term loan, and $96.3 million of the outstanding balance under our revolving line of credit.

In addition to the repayment of outstanding debt, we used the net proceeds from our initial public offering along with the issuance of operating partnership units to acquire 21 self storage properties for an aggregate purchase price of $93.1 million. Consideration for these acquisitions included $41.3 million of cash (which is net of $0.6 million of acquisition deposits applied and cash we expect to deploy in the future as capital expenditures in connection with these acquisitions) and issuance of OP equity of $23.0 million (consisting of 1,420,098 OP units and 345,970 subordinated performance units), and included the assumption of outstanding mortgages with aggregate principal balances of $28.6 million and other liabilities.

In connection with the six properties acquired during the three months ended March 31, 2015, we issued OP units and subordinated performance units of $9.0 million and assumed mortgage balances of $16.4 million. Approximately $1.8 million of the consideration was settled through the cancellation of a note receivable from the related party seller of the properties. In addition, certain of these self storage properties were acquired in DownREIT partnerships with estimated fair value of noncontrolling interests associated with these partnerships of $6.8 million.

On June 3, 2015, our board of trustees declared a cash dividend of $0.15 per common share and OP unit to shareholders and operating partnership unitholders of record as of June 30, 2015. Such distributions were paid on July 15, 2015.

In July and August 2015, we acquired 12 self storage properties with an estimated fair value of approximately $94 million. Consideration for these acquisitions included approximately $78 million of net cash and the issuance of OP equity of approximately $8.0 million (consisting of approximately 660,000 OP Units). Of these acquisitions, one was acquired by us from a PRO and 11 were acquired by us from third-party sellers. Certain of these self storage properties were acquired in DownREIT partnerships. The estimated fair value of noncontrolling interests associated with these partnerships was $8.3 million.

Cash Distributions from our Operating Partnership

Under the LP Agreement of our operating partnership, to the extent that we, as the general partner of our operating partnership, determine to make distributions to the partners of our operating partnership out of the operating cash flow or capital transaction proceeds generated by a real property portfolio managed by one of our PROs, the holders of the series of subordinated performance units that relate to such portfolio are entitled to share in such distributions. Under the LP Agreement of our operating partnership, operating cash flow with respect to a portfolio of properties managed by one of our PROs is generally an amount determined by us, as general partner, of our operating partnership equal to the excess of property revenues over property related expenses from that portfolio. In general, property revenue from the portfolio includes:

(i) all receipts, including rents and other operating revenues;

(ii) any incentive, financing, break-up and other fees paid to us by third parties;

(iii) amounts released from previously set aside reserves; and

(iv) any other amounts received by us, which we allocate to the particular portfolio of properties.

In general, property-related expenses include all direct expenses related to the operation of the properties in that portfolio, including real property taxes, insurance, property-level general and administrative expenses, employee costs, utilities, property marketing expense, property maintenance and property reserves and other expenses incurred at the property level. In addition, other expenses incurred by our operating partnership will also be allocated by us, as general partner, to the property portfolio and will be included in the property-related expenses of that portfolio. Examples of such other expenses include:

(i) corporate-level general and administrative expenses;

(ii) out-of-pocket costs, expenses and fees of our operating partnership, whether or not capitalized;

(iii) the costs and expenses of organizing and operating our operating partnership;

(iv) amounts paid or due in respect of any loan or other indebtedness of our operating partnership during such period;

(v) extraordinary expenses of our operating partnership not previously or otherwise deducted under item (ii) above;

37

(vi) any third-party costs and expenses associated with identifying, analyzing, and presenting a proposed property to us and/or our operating partnership; and

(vii) reserves to meet anticipated operating expenditures debt service or other liabilities, as determined by us.

To the extent to that we, as the general partner of our operating partnership, determine to make distributions to the partners of our operating partnership out of the operating cash flow of a real property portfolio managed by one of our PROs, operating cash flow from a property portfolio is required to be allocated to holders of OP units and to the holders of series of subordinated performance units that relate to such property portfolio as follows:

First, an amount is allocated to holders of OP units in order to provide holders of OP units (together with any prior allocations of capital transaction proceeds) with a cumulative preferred allocation on the unreturned capital attributed to the OP units in respect of such property portfolio. The preferred allocation for all of our existing portfolios is 6%. As of June 30, 2015, our operating partnership had an aggregate of $552.8 million of such unreturned capital contributions with respect to common shareholders, OP unitholders, and the various property portfolios.

Second, an amount is allocated to the holders of the series of subordinated performance units relating to such property portfolio in order to provide such holders with an allocation (together with prior distributions of capital transaction proceeds) on their unreturned capital contributions. Although the subordinated allocation for the subordinated performance units is non-cumulative from period to period, if the operating cash flow from a property portfolio related to a series of subordinated performance units is sufficient, in the judgment of the general partner (with the approval of a majority of our independent trustees), to fund distributions to the holders of such series of subordinated performance units, but we, as the general partner of our operating partnership, decline to make distributions to such holders, the amount available but not paid as distributions will be added to the subordinated allocation corresponding to such series of subordinated performance units. The subordinated allocation for the outstanding subordinated performance units is 6%. As of June 30, 2015, an aggregate of $134.2 million of such unreturned capital contributions has been allocated to the various series of subordinated performance units.

Thereafter, any additional operating cash flow is allocated to holders of OP units and the applicable series of subordinated performance units equally.

Following the allocation described above, we as the general partner of our operating partnership, will generally cause our operating partnership to distribute the amounts allocated to the relevant series of subordinated performance units to the holders of such series of subordinated performance units. We, as the general partner may cause our operating partnership to distribute the amounts allocated to holders of the OP units or may cause our operating partnership to retain such amounts to be used by our operating partnership for any purpose. Any operating cash flow that is attributable to amounts retained by our operating partnership pursuant to the preceding sentence will generally be available to be allocated as an additional capital contribution to the various property portfolios.

The foregoing description of the allocation of operating cash flow between the OP unit holders and subordinated performance unit holders is for purposes of determining distributions to holders of subordinated performance units but does not necessarily represent the operating cash flow that will be distributed to holders of OP units (or paid as dividends to holders of our common shares). Any distribution of operating cash flow allocated to the holders of OP units will be made at our discretion (and paid as dividends to holders of our common shares at the discretion of our board of trustees).

Under the LP Agreement of our operating partnership, capital transactions are transactions that are outside the ordinary course of our operating partnership's business, involve the sale, exchange, other disposition, or refinancing of any property, and are designated as capital transactions by us, as the general partner. To the extent the general partner determines to distribute capital transaction proceeds, the proceeds from capital transactions involving a particular property portfolio are required to be allocated to holders of OP units and to the series of subordinated performance units that relate to such property portfolio as follows:

First, an amount determined by us, as the general partner, of such capital transaction proceeds is allocated to holders of OP units in order to provide holders of OP units (together with any prior allocations of operating cash flow) with a cumulative preferred allocation on the unreturned capital contributions attributed to the holders of OP units in respect of such property portfolio that relate to such capital transaction plus an additional amount equal to such unreturned capital contributions.

Second, an amount determined by us, as the general partner, is allocated to the holders of the series of subordinated performance units relating to such property portfolio in order to provide such holders with a non-cumulative subordinated

38

allocation on the unreturned capital contributions made by such holders in respect of such property portfolio that relate to such capital transaction plus an additional amount equal to such unreturned capital contributions.

The preferred allocation and subordinated allocation with respect to capital transaction proceeds for each portfolio is equal to the preferred allocation and subordinated allocation for distributions of operating cash flow with respect to that portfolio.

Thereafter, any additional capital transaction proceeds is allocated to holders of OP units and the applicable series of subordinated performance units equally.

Following the allocation described above, we, as the general partner of our operating partnership, will generally cause our operating partnership to distribute the amounts allocated to the relevant series of subordinated performance units to the holders of such series of subordinated performance units. We, as general partner of our operating partnership, may cause our operating partnership to distribute the amounts allocated to holders of the OP units or may cause our operating partnership to retain such amounts to be used by our operating partnership for any purpose. Any capital transaction proceeds that are attributable to amounts retained by our operating partnership pursuant to the preceding sentence will generally be available to be allocated as an additional capital contribution to the various property portfolios.

The foregoing allocation of capital transaction proceeds between the OP unit holders and subordinated performance unit holders is for purposes of determining distributions to holders of subordinated performance units but does not necessarily represent the capital transaction proceeds that will be distributed to holders of OP units (or paid as dividends to holders of our common shares). Any distribution of capital transaction proceeds allocated to the holders of OP units will be made at our discretion (and paid as dividends to holders of our common shares at the discretion of our board of trustees).

Allocation of Capital Contributions

We, as the general partner of our operating partnership, in our discretion, have the right to increase or decrease, as appropriate, the amount of capital contributions allocated to our operating partnership in general and to each series of subordinated performance units to reflect capital expenditures made by our operating partnership in respect of each portfolio, the sale or refinancing of all or a portion of the properties comprising the portfolio, the distribution of capital transaction proceeds by our operating partnership, the retention by our operating partnership of cash for working capital purposes and other events impacting the amount of capital contributions allocated to the holders. In addition, to avoid conflicts of interests, any decision by us to increase or decrease allocations of capital contributions must also be approved by a majority of our independent trustees.

Off-Balance Sheet Arrangements

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 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.

Seasonality

The self storage business is subject to minor seasonal fluctuations. A greater portion of revenues and profits are realized from May through September. Historically, our highest level of occupancy has typically been in July, while our lowest level of occupancy has typically been in February. 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 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. The primary market risk to which we believe we are exposed is 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. We use interest rate swaps to moderate our exposure to interest rate risk by effectively converting the interest on variable rate debt to a fixed rate. We make limited use of other derivative financial instruments and we do not use them for trading or other speculative purposes.

39

As of June 30, 2015, we had $93.0 million of debt subject to variable interest rates (excluding variable-rate debt subject to interest rate swaps). If one-month 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 subject to interest rate swaps) would increase or decrease future earnings and cash flows by approximately $0.9 million annually.

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.

ITEM 4. Controls and Procedures

Disclosure Controls and Procedures

The Company's management, with the participation of the Company's chief executive officer and chief financial officer, has evaluated the effectiveness of the Company's disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on that evaluation, the chief executive officer and chief financial officer concluded that the Company's disclosure controls and procedures, as of the end of the period covered by this report, are effective.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act), other than those described below, during the six months ended June 30, 2015 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Notwithstanding the foregoing, a control system, no matter how well designed and operated, can provide only reasonable, not absolute assurance that it will detect or uncover failures within the Company to disclose material information otherwise required to be set forth in our periodic reports.

Other Internal Control Matters

In connection with the audit of our financial statements as of and for the year ended December 31, 2014, in preparation for our initial public offering, our independent registered public accounting firm identified certain deficiencies in our system of internal control over financial reporting that it considered to be a material weakness. The Public Company Accounting Oversight Board’s Auditing Standard No. 5 defines a material weakness as a deficiency, or a combination of deficiencies, in internal controls over financial reporting, such that there is a reasonable possibility that a material misstatement of annual or interim financial statements will not be prevented or detected on a timely basis. The identified material weakness related exclusively to management’s failure to design controls for the timely review of estimates made in purchase price allocations and review its determination of acquisition dates relating to certain business combinations. We believe that this material weakness primarily arose as a result of the high volume of real property acquisitions that we completed during calendar year 2014. We believe that we have designed appropriate controls over the timely review of estimates made in purchase price allocations and established appropriate review procedures regarding the determination of acquisition dates relating to certain business combinations. In addition, we believe we have added resources with the appropriate level of technical experience and training to our accounting and finance department to implement these controls. If we have not been successful in effectively remediating this material weakness, investors could lose confidence in our reported financial information and the trading price of our common shares could be adversely affected.

Notwithstanding the identified material weakness, management believes the condensed consolidated financial statements included in this report fairly represent in all material respects our financial condition, results of operations, and cash flows for the periods presented in accordance with GAAP.

40

PART II. OTHER INFORMATION

ITEM 1. Legal Proceedings

We are not currently subject to any legal proceedings that we consider to be material.

ITEM 1A. Risk Factors

For a discussion of our potential risks and uncertainties, see the information under the heading “Risk Factors” beginning on page 31 of our final Prospectus filed with the SEC on April 24, 2015, which is accessible on the SEC’s website at www.sec.gov. As of the date of this report, there have been no material changes to the risk factors disclosed in our final Prospectus filed with the SEC on April 24, 2015.

ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds

Unregistered Sales of Equity Securities

On June 7, 2013, we issued National Storage Affiliates Holdings, LLC 1,000 common shares at a price per share of $0.01 for an aggregate purchase price of $10. This issuance of the common shares was exempt from registration under the Securities Act in reliance on Section 4(a)(2) of the Securities Act, as transactions by an issuer not involving a public offering. Immediately prior to the completion of our initial public offering on April 28, 2015, we redeemed these 1,000 common shares for no consideration.

Use of Proceeds from Registered Securities

On April 22, 2015, the SEC declared effective our registration statement on Form S-11, as amended (File No. 333-202113) (the "Registration Statement"), for our initial public offering of our common shares. We registered the offering and sale of 23,000,000 common shares, including 3,000,000 common shares to be sold to the underwriters pursuant to their option to purchase additional shares. On April 28, 2015, we completed the offering of 20,000,000 common shares, at a price of $13.00 per share for an aggregate offering price of $260 million. The underwriters subsequently exercised their option to purchase an additional 3,000,000 common shares at a price of $13.00 per share for an aggregate offering price of $39.0 million, which was completed on May 18, 2015. Jefferies LLC, Morgan Stanley & Co. LLC, and Wells Fargo LLC were joint book-running managers and representatives of the underwriters, with KeyBanc Capital Markets Inc. acting as lead manager. Additional joint book-running managers were Robert W. Baird & Co. Incorporated, RBC Capital Markets, LLC, SunTrust Robinson Humphrey, Inc., and Capital One Securities, Inc.

In connection with our initial public offering, we received net proceeds of approximately $273 million, after deducting the underwriting discount, net of the underwriters' reimbursement of certain expenses to us, of approximately $20.9 million, and a reasonable estimate of expenses of the initial public offering of approximately $5.4 million. The foregoing underwriting discount and expenses were direct or indirect payments to persons other than: (i) our directors, officers or any of their associates; (ii) persons owning ten percent or more of our common shares; or (iii) our affiliates.

As described in our final Prospectus filed with the SEC on April 24, 2015 under the heading "Use of Proceeds," we contributed the proceeds from our initial public offering to our operating partnership, which then used the proceeds to repay approximately $230.0 million of outstanding debt and acquire 21 self storage properties for an aggregate purchase price of $93.1 million. There were no material changes in our planned use of proceeds as described in our final Prospectus.

ITEM 3. Defaults Upon Senior Securities

Not applicable.

ITEM 4. Mine Safety Disclosures

Not applicable.

ITEM 5. Other Information

None.

41

ITEM 6. Exhibits
The following exhibits are filed with this report:
Exhibit Number	Exhibit Description
3.1	Articles of Amendment and Restatement of National Storage Affiliates Trust (Exhibit 3.1 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.2	Amended and Restated Bylaws of National Storage Affiliates Trust (Exhibit 3.2 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.3	Third Amended and Restated Agreement of Limited Partnership of NSA OP, LP (Exhibit 3.3 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.4	Amended and Restated Partnership Unit Designation of Series GN Class B OP Units of NSA OP, LP (Exhibit 3.4 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.5	Third Amended and Restated Partnership Unit Designation of Series NW Class B OP Units of NSA OP, LP (Exhibit 3.5 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.6	Third Amended and Restated Partnership Unit Designation of Series OV Class B OP Units of NSA OP, LP (Exhibit 3.6 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.7	Second Amended and Restated Partnership Unit Designation of Series SC Class B OP Units of NSA OP, LP (Exhibit 3.7 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
3.8	Partnership Unit Designation of Series SS Class B OP Units of NSA OP, LP (Exhibit 3.8 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
4.1	Specimen Common Share Certificate of National Storage Affiliates Trust (Exhibit 4.1 to the Registration Statement on Form S-11/A filed with the SEC on April 20, 2015, is incorporated by reference)
10.1	National Storage Affiliates Trust 2015 Equity Incentive Plan (Exhibit 10.1 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.2	Amended and Restated Registration Rights Agreement, by and among National Storage Affiliates Trust and the parties listed on Schedule I thereto (Exhibit 10.2 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.3	Employment Agreement, dated April 28, 2015, by and between National Storage Affiliates Trust and Arlen D. Nordhagen (Exhibit 10.3 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.4	Employment Agreement, dated April 28, 2015, by and between National Storage Affiliates Trust and Tamara D. Fischer (Exhibit 10.4 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.5	Employment Agreement, dated April 28, 2015, by and between National Storage Affiliates Trust and Steven B. Treadwell (Exhibit 10.5 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.6	Facilities Portfolio Management Agreement, dated April 28, 2015, by and among (i) NSA OP, LP, (ii) the property owners listed therein, (iii) Guardian Storage Centers, LLC, a California limited liability company d/b/a StorAmerica Management, and (iv) John Minar and David Lamb, each an individual (Exhibit 10.6 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.7	Facilities Portfolio Management Agreement, dated April 28, 2015, by and among (i) NSA OP, LP, (ii) the property owners listed therein, (iii) Kevin Howard Real Estate, Inc., an Oregon corporation, and (iv) Kevin Howard, an individual (Exhibit 10.7 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.8	Facilities Portfolio Management Agreement, dated April 28, 2015, by and among (i) NSA OP, LP, (ii) the property owners listed therein, (iv) Optivest Properties, LLC, a California limited liability company, and (iv) Warren Allen, an individual (Exhibit 10.8 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)

42

10.9	Facilities Portfolio Management Agreement, dated April 28, 2015, by and among (i) NSA OP, LP, (ii) the property owners listed therein, (iii) SecurCare Self Storage, Inc. a Colorado corporation, and (iv) David Cramer, Justin Hlibichuk and Arlen Nordhagen, each an individual (Exhibit 10.9 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
10.10	Facilities Portfolio Management Agreement, dated April 28, 2015, by and among (i) NSA OP, LP, (ii) the property owners listed therein (iii) Arizona Mini Storage Management Company, an Arizona corporation, and (iv) William F. Bohannan, Jr. and Raymond McRae, each an individual (Exhibit 10.10 to the Quarterly Report on Form 10-Q, filed with the SEC on June 5, 2015, is incorporated herein by this reference)
31.1*	Certification of Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2*	Certification of Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101*	XBRL (Extensible Business Reporting Language). The following materials from NSA's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2015, tagged in XBRL: ((i) condensed consolidated balance sheets; (ii) condensed consolidated statements of operations; (iii) condensed consolidated statements of comprehensive income (loss); (iv) condensed consolidated statement of changes in equity; (v) condensed consolidated statements of cash flows; and (vi) notes to condensed consolidated financial statements.
*	Filed herewith.

43

SIGNATURES

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

	National Storage Affiliates Trust
By:	/s/ ARLEN D. NORDHAGEN
	Arlen D. Nordhagen
	chairman of the board of trustees, president
	and chief executive officer
	(principal executive officer)
By:	/s/ TAMARA D. FISCHER
	Tamara D. Fischer
	chief financial officer
	(principal accounting and financial officer)

Date: August 11, 2015

44

EX-31.1

Exhibit 31.1

Chief Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Arlen D. Nordhagen, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of National Storage Affiliates Trust;

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(s) 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)) [language omitted in accordance with SEC release Nos. 33-8760 and 34-54942] 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) [language omitted in accordance with SEC release Nos. 33-8760 and 34-54942];

(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(s) 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 trustees (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 11, 2015

By:	/s/ Arlen D. Nordhagen
	Arlen D. Nordhagen
	Chairman of the Board of Trustees, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Chief Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Tamara D. Fischer, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of National Storage Affiliates Trust;

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(s) 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)) [language omitted in accordance with SEC release Nos. 33-8760 and 34-54942] 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) [language omitted in accordance with SEC release Nos. 33-8760 and 34-54942];

(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(s) 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 trustees (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 11, 2015

By:	/s/ Tamara D. Fischer
	Tamara D. Fischer
	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification, 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

In connection with the Quarterly Report of National Storage Affiliates Trust (the “Company”) on Form 10-Q for the period ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Arlen D. Nordhagen, Chairman of the Board of Trustees, President and Chief Executive Officer of the Company, and I, Tamara D. Fischer, Executive Vice President and Chief Financial Officer of the Company, hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

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

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

Date: August 11, 2015

By:	/s/ Arlen D. Nordhagen
	Arlen D. Nordhagen
	Chairman of the Board of Trustees, President and Chief Executive Officer

By:	/s/ Tamara D. Fischer
	Tamara D. Fischer
	Executive Vice President and Chief Financial Officer

Pursuant to the Securities and Exchange Commission Release 33-8238, dated June 5, 2003, this certification is being furnished and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has 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.

XML

RELATED PARTY TRANSACTIONS (Details) - Business Acquisition, Acquiree [Domain] $ in Thousands			1 Months Ended	2 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended
	Apr. 01, 2015 shares	Jan. 01, 2015 property	Jan. 31, 2015 property	May. 31, 2015 property	Jun. 30, 2015 USD ($) ft² property	Mar. 31, 2015 USD ($) property	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) ft² property	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) property	Jul. 01, 2014 USD ($)
Related Party Transaction [Line Items]
General and administrative expenses					$ 4,187		$ 1,796	$ 7,800	$ 3,134
Property operating expenses					10,826		6,033	20,668	10,955
Note receivable from PRO					0			0		$ 1,778
Loan receivable settled in self storage property acquisition					$ 0	$ 1,778		$ 1,778
Number of self storage properties acquired | property		5	6	21	21	6		27
Participating Regional Operator [Member] | Management [Member]
Related Party Transaction [Line Items]
Note receivable from PRO											$ 8,000
Loan receivable settled in self storage property acquisition										$ 6,200
Number of self storage properties acquired | property			2							13
Bridge loan agreement					$ 5,300			$ 5,300
Related party, weighted average fixed rate					3.30%			3.30%
Participating Regional Operator [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Number of self storage properties acquired | property								10
Participating Regional Operator [Member] | Other assets, net [Member] | Management [Member]
Related Party Transaction [Line Items]
Note receivable from PRO										$ 1,800
SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Due to Affiliate							3,200		3,200
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Management [Member]
Related Party Transaction [Line Items]
General and administrative expenses					$ 1,800		900	$ 3,400	1,700
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Minimum [Member] | Management [Member]
Related Party Transaction [Line Items]
Fee agreement on gross revenue, percent								5.00%
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Maximum [Member] | Management [Member]
Related Party Transaction [Line Items]
Fee agreement on gross revenue, percent								6.00%
Payroll Services [Member] | Participating Regional Operator [Member] | Management [Member]
Related Party Transaction [Line Items]
Property operating expenses					$ 3,200		1,600	$ 6,100	3,100
Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Property operating expenses							$ 100	$ 200	$ 200
Area occupied by related party | ft²					1,500			1,500
Annual rent								$ 25
Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Call Center [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Issuance of OP units and subordinated performance units for acquisition of call center | shares	50,000

XML

SELF STORAGE PROPERTY ACQUISITIONS - Narrative (Details) $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended			6 Months Ended
	Jan. 01, 2015 property	Jan. 31, 2015 property	May. 31, 2015 property	Jun. 30, 2015 USD ($) property	Mar. 31, 2015 property	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) property	Jun. 30, 2014 USD ($)
Business Acquisition [Line Items]
Number of self storage properties acquired | property	5	6	21	21	6		27
Estimated fair value of acquired self storage properties				$ 136,100			$ 136,100
Recognized fair value of real estate acquired				132,100			132,100
Pro forma revenue				3,300			4,500
Pro forma operating income				1,900			2,600
Acquisition costs				719		$ 5,089	1,318	$ 5,271
Leases, Acquired-in-Place [Member]
Business Acquisition [Line Items]
Recognized fair value of identifiable intangible assets				$ 4,000			$ 4,000
Property Subject to Operating Lease [Member]
Business Acquisition [Line Items]
Number of self storage properties acquired | property							3
Participating Regional Operator [Member] | Affiliated Entity [Member]
Business Acquisition [Line Items]
Number of self storage properties acquired | property							10
Unidentified Third Parties [Member]
Business Acquisition [Line Items]
Number of self storage properties acquired | property							17

XML

DEBT FINANCING (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of debt

The Company's outstanding debt as of June 30, 2015 and December 31, 2014 is summarized as follows (dollars in thousands):

	Interest	June 30,		December 31,
	Rate (1)	2015		2014
Credit Facility:
Revolving line of credit	1.79%	$	80,917	$	166,217
Term loan	2.75%	144,558		144,558
Unsecured term loan	—	—		50,000
Fixed rate mortgages payable	3.93%	182,341		153,416
Variable rate mortgages payable	—	—		83,500
Total		$	407,816	$	597,691

^{(1)  Represents the effective interest rate as of June 30, 2015. Effective interest rate incorporates the stated rate plus the impact of interest rate cash flow hedges and discount and premium amortization, if applicable. For the revolving line of credit, the effective interest rate excludes fees for unused borrowings.}

XML

SUBSEQUENT EVENTS (Details) shares in Thousands, $ in Thousands		1 Months Ended		2 Months Ended	3 Months Ended		6 Months Ended
	Jan. 01, 2015 property	Aug. 11, 2015 USD ($) property shares	Jan. 31, 2015 property	May. 31, 2015 property	Jun. 30, 2015 USD ($) property	Mar. 31, 2015 USD ($) property	Jun. 30, 2015 USD ($) property	Jun. 30, 2014 USD ($)
Subsequent Event [Line Items]
Number of self storage properties acquired | property	5		6	21	21	6	27
Aggregate purchase price					$ 95,083	$ 34,235	$ 129,318
Consideration given, cash							47,523	$ 89,856
Consideration given, value of OP Equity					22,971	$ 8,954	31,925
Business combination, noncontrolling interest, fair value					$ 6,800		$ 6,800
Participating Regional Operator [Member] | Affiliated Entity [Member]
Subsequent Event [Line Items]
Number of self storage properties acquired | property							10
Unidentified Third Parties [Member]
Subsequent Event [Line Items]
Number of self storage properties acquired | property							17
Subsequent Event [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Subsequent Event [Line Items]
Number of self storage properties acquired | property		12
Aggregate purchase price		$ 94,000
Consideration given, cash		78,000
Consideration given, value of OP Equity		8,000
Business combination, noncontrolling interest, fair value		$ 8,300
Subsequent Event [Member] | Series of Individually Immaterial Business Acquisitions [Member] | OP units [Member]
Subsequent Event [Line Items]
Equity interest issued (in units) | shares		660
Subsequent Event [Member] | Participating Regional Operator [Member] | Series of Individually Immaterial Business Acquisitions [Member] | Affiliated Entity [Member]
Subsequent Event [Line Items]
Number of self storage properties acquired | property		1
Subsequent Event [Member] | Unidentified Third Parties [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Subsequent Event [Line Items]
Number of self storage properties acquired | property		11

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EARNINGS PER SHARE - Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 93	$ (6,158)	$ (2,678)	$ (8,961)
Net loss attributable to noncontrolling interests	3,371	6,158	6,142	8,961
Net income (loss) attributable to National Storage Affiliates Trust	3,464	0	3,464	0
Distributed and undistributed earnings allocated to participating securities	(3)	0	(3)	0
Net income (loss) attributable to common shareholders - basic	3,461	0	3,461	0
Effect of assumed conversion of dilutive securities	(3,371)	0	(3,371)	0
Net income (loss) attributable to common shareholders - diluted	$ 90	$ 0	$ 90	$ 0
Weighted average shares outstanding (basic) (in shares)	15,517	1	7,802	1
Weighted average shares outstanding (diluted) (in shares)	52,565	1	26,327	1
Earnings (loss) per share (basic) (in dollars per share)	$ 0.22	$ 0.00	$ 0.44	$ 0.00
Earnings (loss) per share (diluted) (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
OP units [Member] | DownREIT Partnership [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	1,415	0	708	0
OP units [Member] | NSA OP, LP [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	20,208	0	10,104	0
LTIP units [Member] | NSA OP, LP [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	1,247	0	624	0
Subordinated performance units [Member] | NSA OP, LP And DownREIT Partnership [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	14,178	0	7,089	0

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles ("GAAP") and have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the consolidated financial statements have been included.

Principles of Consolidation

The Company's financial statements include the accounts of our operating partnership and its controlled subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation of entities.

When the Company obtains an economic interest in an entity, the Company evaluates the entity to determine if the entity is deemed a variable interest entity ("VIE"), and if the Company is deemed to be the primary beneficiary, in accordance with authoritative guidance issued on the consolidation of VIEs. When an entity is not deemed to be a VIE, the Company considers the provisions of additional guidance to determine whether the general partner controls a limited partnership or similar entity when the limited partners have certain rights. The Company consolidates (i) entities that are VIEs and of which the Company is deemed to be the primary beneficiary, and (ii) entities that are non-VIEs which the Company controls and which limited partners lack both substantive participating rights and the ability to dissolve or remove the Company without cause.

Noncontrolling Interests

All of the limited partner equity interests in our operating partnership not held by the Company are reflected as noncontrolling interests. Noncontrolling interests also include ownership interests in DownREIT partnerships held by entities other than our operating partnership. In the consolidated statements of operations, we allocate net income (loss) attributable to noncontrolling interests to arrive at net income (loss) attributable to National Storage Affiliates Trust.

For transactions that result in changes to the Company's ownership interest in our operating partnership, the carrying amount of noncontrolling interests is adjusted to reflect such changes. The difference between the fair value of the consideration received or paid and the amount by which the noncontrolling interest is adjusted is reflected as an adjustment to additional paid-in capital on the consolidated balance sheets.

Reclassifications     

Certain amounts in the financial statements and related notes have been reclassified to conform to the current year presentation. Such reclassifications do not impact our previously reported financial position or net income (loss).

Allocation of Net Income (Loss)

The distribution rights and priorities set forth in our operating partnership's LP Agreement differ from what is reflected by the underlying percentage ownership interests of the unitholders. Accordingly, we allocate GAAP income (loss) utilizing the hypothetical liquidation at book value ("HLBV") method, in which we allocate income or loss based on the change in each unitholders’ claim on the net assets of our operating partnership at period end after adjusting for any distributions or contributions made during such period. The HLBV method is commonly applied to equity investments where cash distribution percentages vary at different points in time and are not directly linked to an equity holder’s ownership percentage.

The HLBV method is a balance sheet-focused approach. A calculation is prepared at each balance sheet date to determine the amount that unitholders would receive if our operating partnership were to liquidate all of its assets (at GAAP net book value) and distribute the resulting proceeds to its creditors and unitholders based on the contractually defined liquidation priorities. The difference between the calculated liquidation distribution amounts at the beginning and the end of the reporting period, after adjusting for capital contributions and distributions, is used to derive each unitholder's share of the income (loss) for the period. Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to unitholders as compared to their respective ownership percentage in our operating partnership, and net income (loss) attributable to National Storage Affiliates Trust could be more or less net income than actual cash distributions received and more or less income or loss than what may be received in the event of an actual liquidation. Additionally, the HLBV method could result in net income attributable to National Storage Affiliates Trust during a period when the Company reports a consolidated net loss, or net income attributable to National Storage Affiliates Trust in excess of the Company's consolidated net income.

Other Comprehensive Income (Loss)

We have cash flow hedge derivative instruments that are measured at fair value with unrealized gains or losses recognized in other comprehensive income (loss) with a corresponding adjustment to accumulated other comprehensive loss within equity, as discussed further in Note 11. Under the HLBV method of allocating income (loss) discussed above, a calculation is prepared at each balance sheet date by applying the HLBV method including, and excluding, the assets and liabilities resulting from our cash flow hedge derivative instruments to determine comprehensive income (loss) attributable to National Storage Affiliates Trust. As a result of the distribution rights and priorities set forth in our operating partnership's LP Agreement, all amounts of consolidated other comprehensive income (loss) for the three and six months ended June 30, 2015 were allocated to noncontrolling interests, as presented within the accompanying consolidated statements of comprehensive income or loss.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective. ASU 2014-09 is effective for the Company on January 1, 2018, with early application permitted for the Company on January 1, 2017. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which modifies the current consolidation guidance. The Company is required to adopt ASU 2015-02 for annual and interim financial statements issued for the year ending December 31, 2016. Upon adoption by the Company, ASU 2015-02 permits the use of either the modified retrospective or cumulative effect transition method. The Company is currently evaluating the impact of the provisions of ASU 2015-02 on its consolidation policies as well as the transition method to be used to implement ASU 2015-02.

In April 2015, the FASB issued ASU 2015-03, Interest—Imputation of Interest, which requires the presentation of debt issuance costs as a direct deduction from the carrying amount of the related debt liabilities. The Company does not expect ASU 2015-03 to have a material impact on the Company's results from operations, however, adoption will result in the elimination of debt issuance costs as an asset and a corresponding reduction in the carrying amount of the Company's debt financings applied retrospectively to all periods. The Company is required to adopt this ASU for annual and interim financial statements issued for the year ending December 31, 2016. Early adoption is permitted. The Company is evaluating the effect that ASU 2015-03 will have on its consolidated financial statements and related disclosures.

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NONCONTROLLING INTERESTS - Equity Interests (Details) - shares	Jun. 30, 2015	Dec. 31, 2014
Partnership Subsidiaries [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	37,771,815	34,240,410
OP units [Member] | NSA OP, LP [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	20,705,654	18,817,088
OP units [Member] | DownREIT Partnership [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	1,415,349	1,275,979
Subordinated performance units [Member] | NSA OP, LP [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	9,232,067	8,447,679
Subordinated performance units [Member] | DownREIT Partnership [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	3,688,205	3,009,884
LTIP units [Member] | NSA OP, LP [Member]
Noncontrolling Interest [Line Items]
Outstanding equity interest (in shares)	2,730,540	2,689,780

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ORGANIZATION AND NATURE OF OPERATIONS (Details) $ / shares in Units, storage_unit in Thousands, $ in Thousands, ft² in Millions			6 Months Ended
	May. 18, 2015 USD ($) shares	Apr. 28, 2015 $ / shares shares	Jun. 30, 2015 USD ($) ft² storage_unit regional_operator state property $ / shares shares	Jun. 30, 2014 USD ($)
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Net proceeds from issuance of common shares in IPO | $			$ 278,070	$ 0
Number of self storage properties owned | property			246
Number of states that self storage properties are owned in | state			16
Total rentable square feet in self storage properties | ft²			13.6
Number of storage units owned | storage_unit			107
Number of participating regional operators | regional_operator			6
National Storage Affiliates Holdings LLC [Member] | National Storage Affiliates Trust [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of NSA owned by NSA Holdings prior to IPO			100.00%
National Storage Affiliates Holdings LLC [Member] | National Storage Affiliates Trust [Member] | Common Shares [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Shares owned by NSA Holdings (in shares)			1,000
National Storage Affiliates Holdings LLC [Member] | NSA OP, LP [Member] | OP units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Shares owned by NSA Holdings (in shares)			126,400
Parent Company [Member] | OP units [Member] | NSA OP, LP [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Amount of OP units issued in exchange for common shares from initial public offering (in shares)		23,000,000
Common Shares [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Shares offered during initial public offering			23,000,000
Common Shares [Member] | IPO [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Shares offered during initial public offering		20,000,000
Share price | $ / shares		$ 13.00
Common Shares [Member] | Over-Allotment Option [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Shares offered during initial public offering	3,000,000
Net proceeds from issuance of common shares in IPO | $	$ 278,100
Common Shares [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common share par value (in dollars per share) | $ / shares			$ 0.01

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SELF STORAGE PROPERTIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Real Estate [Abstract]
Land	$ 268,814	$ 236,691
Buildings and improvements	701,930	600,284
Furniture and equipment	2,034	1,966
Total self storage properties	972,778	838,941
Less accumulated depreciation	(52,509)	(39,614)
Self storage properties, net	$ 920,269	$ 799,327

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SELF STORAGE PROPERTY ACQUISITIONS - Business Combination Consideration (Details) $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended
	Jan. 01, 2015 property	Jan. 31, 2015 property	May. 31, 2015 property	Jun. 30, 2015 USD ($) property	Mar. 31, 2015 USD ($) property	Jun. 30, 2015 USD ($) property
Business Combinations [Abstract]
Number of self storage properties acquired | property	5	6	21	21	6	27
Consideration given, cash				$ 41,277	$ 6,991	$ 48,268
Consideration given, value of OP Equity				22,971	8,954	31,925
Consideration given, settlement of note receivable				0	1,778	1,778
Liabilities assumed, mortgages				30,547	16,442	46,989
Liabilities assumed, other				288	70	358
Total consideration given and liabilities assumed				95,083	$ 34,235	129,318
Business combination, noncontrolling interest, fair value				6,800		6,800
Business combination, debt adjustment on assumed mortgages				$ 2,000		$ 2,000

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ORGANIZATION AND NATURE OF OPERATIONS

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

ORGANIZATION AND NATURE OF OPERATIONS

ORGANIZATION AND NATURE OF OPERATIONS

National Storage Affiliates Trust was organized in the state of Maryland on May 16, 2013 and is a fully integrated, self-administered and self-managed real estate investment trust focused on the self storage sector. As used herein, "NSA," the "Company," "we," "our," and "us" refers to National Storage Affiliates Trust and its consolidated subsidiaries, except where the context indicates otherwise. The Company intends to elect and qualify as a real estate investment trust ("REIT") for U.S. federal income tax purposes commencing with its taxable year ending December 31, 2015.

Through our controlling interest as the sole general partner of NSA OP, LP (our "operating partnership"), a Delaware limited partnership formed on February 13, 2013, we are focused on the ownership, operation, and acquisition of self storage properties in the United States. Pursuant to the Agreement of Limited Partnership (as amended, the "LP Agreement") of our operating partnership, our operating partnership is authorized to issue Class A Units ("OP units"), different series of Class B Units ("subordinated performance units"), and Long-Term Incentive Plan Units ("LTIP units"). We also own certain of our self storage properties through other consolidated limited partnership subsidiaries of our operating partnership, which we refer to as "DownREIT partnerships." The DownREIT partnerships issue equity ownership interests that are intended to be economically equivalent to our OP units ("DownREIT OP units") and subordinated performance units ("DownREIT subordinated performance units").

The Company completed its initial public offering on April 28, 2015, pursuant to which it sold 20,000,000 shares of the Company's common shares of beneficial interest, $0.01 par value per share ("common shares"), at a price of $13.00 per share. As part of the offering, the Company granted the underwriters an option to purchase up to 3,000,000 additional common shares within thirty days after the offering. The underwriters exercised their option and, on May 18, 2015, purchased an additional 3,000,000 common shares. These transactions resulted in net proceeds to the Company of approximately $278.1 million, after deducting the underwriting discount and before additional expenses associated with the offering.

The Company contributed the net proceeds from its initial public offering to our operating partnership in exchange for 23,000,000 OP units. OP Units are the economic equivalent of the Company's common shares and for each common share issued by the Company, our operating partnership issues a corresponding OP Unit to NSA in exchange for the contribution of the proceeds from the share issuances. Immediately prior to the completion of our initial public offering on April 28, 2015, we redeemed 1,000 common shares held by National Storage Affiliates Holdings, LLC ("Holdings"), an entity formed on February 13, 2013, for no consideration. Prior to this redemption, the Company was 100% owned by Holdings and the only assets of Holdings were 126,400 OP units and 1,000 common shares.

The Company owned 246 self storage properties in 16 states with approximately 13.6 million rentable square feet in approximately 107,000 storage units as of June 30, 2015. These properties are managed with local operational focus and expertise by our participating regional operators ("PROs"). These PROs are SecurCare Self Storage, Inc. and its controlled affiliates ("SecurCare"), Kevin Howard Real Estate Inc., d/b/a Northwest Self Storage and its controlled affiliates ("Northwest"), Optivest Properties LLC and its controlled affiliates ("Optivest"), Guardian Storage Centers LLC and its controlled affiliates ("Guardian"), and Move It Self Storage and its controlled affiliates ("Move It"). In addition, upon the completion of our initial public offering and formation transactions, we were joined by our sixth PRO, Arizona Mini Storage Management Company d/b/a Storage Solutions and its controlled affiliates ("Storage Solutions").

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SELF STORAGE PROPERTY ACQUISITIONS - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Combination, Pro Forma Information [Line Items]
Pro forma revenue	$ 32,611	$ 20,070	$ 63,809	$ 37,034
Pro forma net income (loss)	$ 1,814	$ (6,365)	$ 822	$ (11,289)
Earnings (loss) per share (basic) (in dollars per share)	$ 0.22	$ 0.00	$ 0.44	$ 0.00
Pro forma earnings (loss) per share (basic) (in dollars per share)	0.22	0.00	0.44	0.00
Earnings (loss) per share (diluted) (in dollars per share)	0.00	0.00	0.00	0.00
Pro forma earnings (loss) per share (diluted) (in dollars per share)	$ 0.03	$ 0.00	$ 0.03	$ 0.00
Pro forma net income (loss)	$ 719	$ 5,089	$ 1,318	$ 5,271
April - May 2015 Acquisitions [Member]
Business Combination, Pro Forma Information [Line Items]
Pro forma revenue	961	2,629	3,782	5,215
Pro forma net income (loss)	1,404	(55)	2,292	(1,337)
January 2015 Acquisitions [Member]
Business Combination, Pro Forma Information [Line Items]
Pro forma revenue	0	1,226	86	2,443
Pro forma net income (loss)	317	(152)	1,208	(991)
Consolidated Entities Excluding Acquirees [Member]
Business Combination, Pro Forma Information [Line Items]
Pro forma revenue	31,650	16,215	59,941	29,376
Pro forma net income (loss)	$ 93	$ (6,158)	$ (2,678)	$ (8,961)
Credit Facility [Member] | Line of Credit [Member] | Revolving line of credit [Member]
Business Combination, Pro Forma Information [Line Items]
Effective interest rate	1.79%		1.79%

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FAIR VALUE MEASUREMENTS - Interest Swap Derivatives (Details) - Interest Rate Swap [Member] - Level 2 [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis [Roll Forward]
Fair value at beginning of period	$ (1,072)	$ 70
Unrealized losses included in interest expense	8	(193)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	775	281
Unrealized losses included in accumulated other comprehensive loss	(1,270)	(1,252)
Fair value of end of period	(1,559)	(1,094)
Designated as Hedging Instrument [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis [Roll Forward]
Fair value at beginning of period	(865)	0
Unrealized losses included in interest expense	0	0
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	775	281
Unrealized losses included in accumulated other comprehensive loss	(1,270)	(1,252)
Fair value of end of period	(1,360)	(971)
Not Designated as Hedging Instrument [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis [Roll Forward]
Fair value at beginning of period	(207)	70
Unrealized losses included in interest expense	8	(193)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	0	0
Unrealized losses included in accumulated other comprehensive loss	0	0
Fair value of end of period	$ (199)	$ (123)

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Real estate
Self storage properties	$ 972,778	$ 838,941
Less accumulated depreciation	(52,509)	(39,614)
Self storage properties, net	920,269	799,327
Cash and cash equivalents	6,055	9,009
Restricted cash	3,149	2,120
Debt issuance costs, net	4,785	6,346
Other assets, net	8,253	15,944
Total assets	942,511	832,746
Liabilities
Debt financing	407,816	597,691
Accounts payable and accrued liabilities	14,877	10,012
Distributions payable	9,253	6,763
Deferred revenue	5,178	4,176
Total liabilities	$ 437,124	$ 618,642
Commitments and contingencies (Note 10)
Equity
Common shares of beneficial interest, par value $0.01 per share. 250,000,000 and 1,000 shares authorized, 23,017,210 and 1,000 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	$ 230	$ 0
Additional paid-in capital	233,638	0
Retained earnings	11	0
Accumulated other comprehensive loss	0	0
Total shareholders' equity	233,879	0
Noncontrolling interests	271,508	214,104
Total equity	505,387	214,104
Total liabilities and equity	$ 942,511	$ 832,746

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CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interests [Member]
Balances (in shares) at Dec. 31, 2014	1,000	1,000
Balances at Dec. 31, 2014	$ 214,104	$ 0	$ 0	$ 0	$ 214,104
Increase (Decrease) in Stockholders' Equity [Roll Forward]
OP Equity Issuances in business combinations, OP units and subordinated performance units	31,925				31,925
Noncontrolling interests in acquired subsidiaries	6,770				6,770
Redemption of common shares (in shares)		(1,000)
Issuance of common shares, net of offering costs (in shares)		23,000,000
Issuance of common shares, net of offering costs	271,010	$ 230	270,780
Effect of changes in ownership for consolidated entities			(37,142)		37,142
Equity-based compensation expense	1,721				1,721
Issuance of LTIP units for acquisition expenses	366				366
Issuance of restricted shares (in shares)		17,210
Reduction in receivables from partners of OP	897				897
Common share dividends	(3,453)			(3,453)
Distributions to limited partners of OP	(14,780)				(14,780)
Other comprehensive loss	(495)				(495)
Net income (loss)	$ (2,678)			3,464	(6,142)
Balances (in shares) at Jun. 30, 2015	23,017,010	23,017,210
Balances at Jun. 30, 2015	$ 505,387	$ 230	$ 233,638	$ 11	$ 271,508

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DEBT FINANCING - Debt Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Debt financing	$ 407,816	$ 597,691
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member]
Debt Instrument [Line Items]
Debt financing	$ 80,917	166,217
Effective interest rate	1.79%
Line of Credit [Member] | Credit Facility [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt financing	$ 144,558	144,558
Effective interest rate	2.75%
Loans Payable [Member] | Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Debt financing	$ 0	50,000
Effective interest rate	0.00%
Mortgages [Member] | Fixed Rate Mortgages [Member]
Debt Instrument [Line Items]
Debt financing	$ 182,341	153,416
Effective interest rate	3.93%
Mortgages [Member] | Variable Rate Mortgages [Member]
Debt Instrument [Line Items]
Debt financing	$ 0	$ 83,500
Effective interest rate	0.00%

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SELF STORAGE PROPERTIES (Tables)

6 Months Ended

Jun. 30, 2015

Real Estate [Abstract]

Schedule of self storage properties

Self storage properties are summarized as follows (dollars in thousands):

	June 30,			December 31,
	2015			2014
Land	$	268,814		$	236,691
Buildings and improvements	701,930			600,284
Furniture and equipment	2,034			1,966
Total self storage properties	972,778			838,941
Less accumulated depreciation	(52,509		)	(39,614		)
Self storage properties, net	$	920,269		$	799,327

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DEBT FINANCING - Narrative (Details) - Subsequent Event Type [Domain]			1 Months Ended		2 Months Ended	3 Months Ended		6 Months Ended
	Jan. 01, 2015 property	Apr. 01, 2014 USD ($) component financial_institution	Jun. 03, 2015 USD ($)	Jan. 31, 2015 property	May. 31, 2015 property	Jun. 30, 2015 USD ($) property	Mar. 31, 2015 USD ($) property	Jun. 30, 2015 USD ($) property	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Debt financing						$ 407,816,000		$ 407,816,000		$ 597,691,000
Number of self storage properties acquired | property	5			6	21	21	6	27
Liabilities assumed, mortgages						$ 30,547,000	$ 16,442,000	$ 46,989,000
Repayment of long term debt								257,084,000	$ 143,564,000
Line of Credit [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 425,000,000.0
Number of financial institutions in lender agreement | financial_institution		7
Number of lender agreement components | component		2
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 280,400,000.0				199,483,000.000		$ 199,483,000.000
Borrowing base calculation, minimum occupancy rate of property		75.00%
Extension fee, percent								0.20%
Repayment of line of credit			$ 96,300,000
Debt financing						$ 80,917,000		$ 80,917,000		166,217,000
Effective interest rate						1.79%		1.79%
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Reduced borrowing rate								1.60%
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | Minimum [Member]
Debt Instrument [Line Items]
Unused borrowing capacity, percent		0.20%
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unused borrowing capacity, percent		0.30%
Line of Credit [Member] | Credit Facility [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 144,600,000
Debt financing						$ 144,558,000		$ 144,558,000		144,558,000
Effective interest rate						2.75%		2.75%
Line of Credit [Member] | Credit Facility [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Reduced borrowing rate								1.50%
Loans Payable [Member] | Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Number of lenders | financial_institution		3
Debt financing						$ 0		$ 0		50,000,000
Effective interest rate						0.00%		0.00%
Maturity date extension fee								$ 250,000
Repayment of long term debt								50,000,000
Extinguishment of debt, write-off of debt issuance costs								200,000
Loans Payable [Member] | Unsecured Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Reduced borrowing rate		5.00%
Mortgages [Member] | Fixed Rate Mortgages [Member]
Debt Instrument [Line Items]
Debt financing						$ 182,341,000		$ 182,341,000		153,416,000
Effective interest rate						3.93%		3.93%
Minimum effective interest rate								2.20%
Maximum effective interest rate								5.00%
Number of self storage properties acquired | property							16
Liabilities assumed, mortgages								$ 47,000,000
Repayment of long term debt								11,000,000
Mortgages [Member] | Variable Rate Mortgages [Member]
Debt Instrument [Line Items]
Debt financing						$ 0		$ 0		$ 83,500,000
Effective interest rate						0.00%		0.00%
Minimum effective interest rate								2.43%
Maximum effective interest rate								9.65%
Repayment of long term debt								$ 83,500,000
Extinguishment of debt, write-off of debt issuance costs								200,000
Extinguishment of debt, prepayment penalty								$ 500,000

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OTHER ASSETS (Tables)

6 Months Ended

Jun. 30, 2015

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of other assets

Other assets consist of the following (dollars in thousands):

	June 30,		December 31,
	2015		2014
Customer in-place leases, net of accumulated amortization of $7,308 and $5,469, respectively	$	4,950	$	7,700
Receivables:
Trade, net	893		979
PROs and other affiliates	336		416
Note receivable from PRO	—		1,778
Property acquisition deposits	170		770
Prepaid expenses and other	1,691		1,017
Corporate furniture and equipment, net	213		198
Deferred offering costs	—		3,086
Total	$	8,253	$	15,944

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ (2,678)	$ (8,961)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	19,851	8,534
Amortization of debt issuance costs	1,610	1,082
Amortization of debt discount and premium, net	(780)	907
Loss on debt extinguishment	414	344
Unrealized (gain) loss on fair value of derivatives	(3)	193
Gain on sale of self storage properties	0	(1,426)
Issuance of subordinated performance units for related party payable	0	3,242
LTIP units issued for acquisition expenses	366	0
Equity-based compensation expense	1,721	684
Change in assets and liabilities, net of effects of business combinations:
Restricted cash	(221)	941
Other assets	(865)	(121)
Accounts payable and accrued liabilities	1,363	327
Deferred revenue	249	198
Net Cash Provided by Operating Activities	21,027	5,944
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of self storage properties	(47,523)	(89,856)
Capital expenditures	(2,000)	(1,812)
Note receivable from PROs	0	(4,831)
Deposits and advances for self storage property acquisitions	(145)	(7,495)
Expenditures for corporate furniture, equipment and other	(58)	(93)
Change in restricted cash designated for capital expenditures	188	333
Proceeds from sale of self storage properties	0	2,993
Net Cash Used in Investing Activities	(49,538)	(100,761)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuance of common shares in IPO	278,070	0
Borrowings under debt financings	21,000	245,449
Proceeds from issuance of OP units	0	431
Receipts for OP unit subscriptions	746	0
Collection of receivables from issuance of OP equity	575	0
Principal payments under debt financings	(257,084)	(143,564)
Distributions to partners of OP	(14,681)	(3,570)
NSA Predecessor distributions and other	0	(429)
Change in restricted cash for financing activity	(167)	0
Debt issuance costs	(553)	(183)
Equity offering costs	(2,349)	(173)
Net Cash Provided by Financing Activities	25,557	97,961
(Decrease) Increase in Cash and Cash Equivalents	(2,954)	3,144
CASH AND CASH EQUIVALENTS
Beginning of period	9,009	11,196
End of period	6,055	14,340
Supplemental Cash Flow Information
Cash paid for interest	11,739	8,632
Consideration exchanged in business combinations:
Issuance of OP units and subordinated performance units	31,925	70,557
Deposits on acquisitions applied to purchase price	745	50
LTIP units vesting upon acquisition of properties	0	2,299
Assumption of mortgages payable	46,989	0
Note payable to related party to settle assumed mortgages	5,342	0
Other net liabilities assumed	358	1,157
Notes receivable settled upon acquisition of properties	1,778	4,831
Fair value of noncontrolling interests in acquired subsidiaries	6,770	0
Issuance of OP units for settlement of subscription liability	194	5,863
Settlement of acquisition receivables from distributions	867	0
Increase in lender participation liability and related discount	0	770
Increase in payables for deferred offering costs	1,625	442
Settlement of debt issuance costs from borrowings	0	3,851
Settlement of offering costs from IPO proceeds	$ 20,930	$ 0

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common shares of beneficial interest, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares of beneficial interest, authorized (in shares)	250,000,000	1,000
Common shares of beneficial interest, issued (in shares)	23,017,010	1,000
Common shares of beneficial interest, outstanding (in shares)	23,017,010	1,000

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COMMITMENTS AND CONTINGENCIES

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Legal Proceedings

The Company is subject to litigation, claims, and assessments that may arise in the ordinary course of its business activities. Such matters include contractual matters, employment related issues, and regulatory proceedings. Although occasional adverse decisions or settlements may occur, the Company believes that the final disposition of such matters will not have a material adverse effect on the Company's financial position, results of operations, or liquidity.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 10, 2015
Entity [Abstract]
Entity Registrant Name	NATIONAL STORAGE AFFILIATES TRUST
Entity Central Index Key	0001618563
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		23,017,210

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FAIR VALUE MEASUREMENTS

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

Recurring Fair Value Measurements

We sometimes limit our exposure to interest rate fluctuations by entering into interest rate swap or cap agreements. The interest rate swap agreements moderate our exposure to interest rate risk by effectively converting the interest on variable rate debt to a fixed rate. The interest rate cap agreements effectively limit our exposure to interest rate risk by providing a ceiling on the underlying variable interest rate. Our interest rate cap agreements are not material to our financial position and results of operations.

We measure our interest rate swap derivatives at fair value on a recurring basis. Information regarding our interest rate swaps measured at fair value, which are classified within Level 2 of the GAAP fair value hierarchy, is presented below (dollars in thousands):

	Interest Rate Swaps Designated as Cash Flow Hedges			Non-hedge accounting Interest Rate Swaps			Total
Fair value at December 31, 2013	$	—		$	70		$	70
Unrealized losses included in interest expense	—			(193		)	(193		)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	281			—			281
Unrealized losses included in accumulated other comprehensive loss	(1,252		)	—			(1,252		)
Fair value at June 30, 2014	$	(971	)	$	(123	)	$	(1,094	)
Fair value at December 31, 2014	$	(865	)	$	(207	)	$	(1,072	)
Unrealized gains included in interest expense	—			8			8
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	775			—			775
Unrealized losses included in accumulated other comprehensive loss	(1,270		)	—			(1,270		)
Fair value at June 30, 2015	$	(1,360	)	$	(199	)	$	(1,559	)

As of June 30, 2015 and December 31, 2014, we had outstanding interest rate swaps with aggregate notional amounts of $125.0 million designated as cash flow hedges. As of June 30, 2015, these swaps had a weighted average remaining term of 2.8 years. The fair value of these swaps designated as hedges are presented within accounts payable and accrued liabilities in our balance sheets, and we recognize any changes in the fair value as an adjustment of accumulated other comprehensive loss within equity to the extent of their effectiveness. If the forward rates at June 30, 2015 remain constant, we estimate that during the next 12 months, we would reclassify into earnings approximately $1.3 million of the unrealized losses included in accumulated other comprehensive loss. If market interest rates increase above the 1.42% weighted average fixed rate under these interest rate swaps we will benefit from net cash payments due to us from our counterparty to the interest rate swaps.

As of June 30, 2015 and December 31, 2014, we had an interest rate swap with a notional amount of $7.5 million and $7.6 million, respectively, that was not designated as a cash flow hedge. As of June 30, 2015, this swap had a remaining term of 6.6 years. The fair value of this swap is presented within accounts payable and accrued liabilities in our balance sheets, and we recognize any changes in the fair value as an adjustment of interest expense. If market interest rates increase above the 2.28% fixed rate under this interest rate swap we will benefit from net cash payments due to us from our counterparty to the interest rate swap.

There were no transfers between levels during the six months ended June 30, 2015 and 2014. For financial assets and liabilities that utilize Level 2 inputs, the Company utilizes both direct and indirect observable price quotes, including LIBOR yield curves. The Company uses valuation techniques for Level 2 financial assets and liabilities which include LIBOR yield curves at the reporting date as well as assessing counterparty credit risk. Counterparties to these contracts are highly rated financial institutions. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with the Company's derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by the Company and the counterparties. As of June 30, 2015, the Company determined that the effect of credit valuation adjustments on the overall valuation of its derivative positions are not significant to the overall valuation of its derivatives. Therefore, the Company has determined that its derivative valuations are appropriately classified in Level 2 of the fair value hierarchy.

Fair Value Disclosures

The carrying values of cash and cash equivalents, restricted cash, trade receivables, and accounts payable and accrued liabilities reflected in the balance sheets at June 30, 2015 and December 31, 2014, approximate fair value due to the short term nature of these financial assets and liabilities. The carrying value of variable rate debt financing reflected in the balance sheets at June 30, 2015 and December 31, 2014 approximates fair value as the changes in their associated interest rates reflect the current market and credit risk is similar to when the loans were originally obtained.

The fair values of fixed rate mortgages were estimated using the discounted estimated future cash payments to be made on such debt; the discount rates used approximated current market rates for loans, or groups of loans, with similar maturities and credit quality (categorized within Level 2 of the fair value hierarchy). The combined carrying value of our fixed rate mortgages payable was approximately $182.3 million as of June 30, 2015 with a fair value of approximately $187.7 million. In determining the fair value, the Company estimated a weighted average market interest rate of approximately 3.53%, compared to the weighted average contractual interest rate of 5.10%. The combined carrying value of our fixed rate mortgages was approximately $153.4 million as of December 31, 2014 with a fair value of approximately $158.3 million. In determining the fair value as of December 31, 2014, the Company estimated a weighted average market interest rate of approximately 3.59%, compared to the weighted average contractual interest rate of 5.11%.

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
REVENUE
Rental revenue	$ 30,632	$ 15,793	$ 58,050	$ 28,649
Other property-related revenue	1,018	422	1,891	727
Total revenue	31,650	16,215	59,941	29,376
OPERATING EXPENSES
Property operating expenses	10,826	6,033	20,668	10,955
General and administrative expenses	4,187	1,796	7,800	3,134
Depreciation and amortization	9,974	4,697	19,851	8,534
Total operating expenses	24,987	12,526	48,319	22,623
Income from operations	6,663	3,689	11,622	6,753
OTHER INCOME (EXPENSE)
Interest expense	(4,824)	(4,723)	(11,806)	(10,169)
Loss on early extinguishment of debt	(914)	(1,020)	(914)	(1,020)
Acquisition costs	(719)	(5,089)	(1,318)	(5,271)
Organizational and offering expenses	0	(442)	(58)	(677)
Non-operating (expense) income	(113)	1	(204)	(3)
Gain on sale of self storage properties	0	1,426	0	1,426
Other income (expense)	(6,570)	(9,847)	(14,300)	(15,714)
Net income (loss)	93	(6,158)	(2,678)	(8,961)
Net loss attributable to noncontrolling interests	3,371	6,158	6,142	8,961
Net income (loss) attributable to National Storage Affiliates Trust	$ 3,464	$ 0	$ 3,464	$ 0
Earnings (loss) per share (basic) (in dollars per share)	$ 0.22	$ 0.00	$ 0.44	$ 0.00
Earnings (loss) per share (diluted) (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Weighted average shares outstanding (basic) (in shares)	15,517	1	7,802	1
Weighted average shares outstanding (diluted) (in shares)	52,565	1	26,327	1
Dividends declared per common share (in dollars per share)	$ 0.15	$ 0	$ 0.15	$ 0

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SELF STORAGE PROPERTY ACQUISITIONS

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

SELF STORAGE PROPERTY ACQUISITIONS

SELF STORAGE PROPERTY ACQUISITIONS

The Company acquired 27 self storage properties with an estimated fair value of $136.1 million during the six months ended June 30, 2015. Of these acquisitions, 10 were acquired by us from our PROs and 17 were acquired by us from third-party sellers. These self storage property acquisitions were accounted for as business combinations whereby the Company recognized the estimated fair value of the acquired assets and assumed liabilities on the respective dates of such acquisitions. The Company preliminarily allocated the total purchase price to the estimated fair value of tangible and intangible assets acquired, and liabilities assumed. The Company allocated a portion of the purchase price to identifiable intangible assets consisting of customer in-place leases which were recorded at estimated fair value of $4.0 million, resulting in a total fair value of $132.1 million allocated to real estate.

The following table summarizes, by calendar quarter, the consideration for the business combinations completed by the Company during the six months ended June 30, 2015 (dollars in thousands):

Acquisitions Closed During the Three Months Ended:		Summary of Consideration
	Number of Properties			Value of OP Equity (1)		Settlement of Note Receivable		Liabilities Assumed (Assets Acquired)
		Cash						Mortgages(3)		Other		Total
March 31, 2015	6	$	6,991	$	8,954	$	1,778	$	16,442	$	70	$	34,235	(2)
June 30, 2015	21	41,277		22,971		—		30,547		288		95,083
Total	27	$	48,268	$	31,925	$	1,778	$	46,989	$	358	$	129,318

^{(1)  Value of OP equity represents the fair value of OP units and subordinated performance units.}  

^{(2)  Excludes the fair value of noncontrolling interests associated with self storage properties acquired in DownREIT partnerships which amounted to $6.8 million for the three months ended March 31, 2015. We estimate the portion of the fair value of the net assets owned by noncontrolling interests based on the fair value of the real estate and debt assumed.} 

^{(3)  Includes fair value of debt adjustment for assumed mortgages of approximately $2.0 million.}  

Three of the 27 self storage properties acquired during the six months ended June 30, 2015 are subject to non-cancelable leasehold interest agreements that are classified as operating leases. These lease agreements expire between 2034 and 2051, inclusive of extension options that we anticipate exercising.

The results of operations for these business combinations are included in our statements of operations beginning on the respective closing date for each acquisition. For the three and six months ended June 30, 2015, the accompanying statements of operations includes aggregate revenue of $3.3 million and $4.5 million, respectively, and operating income of $1.9 million and $2.6 million, respectively, related to the 27 self storage properties acquired. Acquisition costs in the accompanying statements of operations include consulting fees, transaction expenses, and other costs related to business combinations, which amounted to $0.7 million and $1.3 million for the three and six months ended June 30, 2015, respectively.

Pro Forma Financial Information

The pro forma financial information set forth below reflects adjustments to the historical data of the Company to give effect to the acquisitions and related financing activities for (i) each of the 21 self storage properties that were acquired in April and May 2015, as if each had occurred on January 1, 2014, and (ii) each of the six self storage properties that were acquired in January 2015, as if each had occurred on January 1, 2014 (five of the six properties acquired during the three months ended March 31, 2015 were acquired on January 1, 2015 and are therefore included in the historical results for the entirety of the three and six months ended June 30, 2015). Pro forma financial information is not presented for the self storage properties that were acquired subsequent to June 30, 2015 since all information required to complete this disclosure is not currently available to the Company.

The pro forma information presented below does not purport to represent what the actual results of operations would have been for the periods indicated, nor does it purport to represent the Company's future results of operations. The following table summarizes on a pro forma basis the results of operations for the three and six months ended June 30, 2015 and 2014 (dollars in thousands, except per share amounts):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Pro forma revenue:
Historical results	$	31,650	$	16,215		$	59,941		$	29,376
April-May 2015 Acquisitions (excluding those in historical results)	961		2,629			3,782			5,215
January 2015 Acquisitions (excluding those in historical results)	—		1,226			86			2,443
Total	$	32,611	$	20,070		$	63,809		$	37,034
Pro forma net income (loss): (1)
Historical results	$	93	$	(6,158	)	$	(2,678	)	$	(8,961	)
April-May 2015 Acquisitions (excluding those in historical results)	1,404		(55		)	2,292			(1,337		)
January 2015 Acquisitions (excluding those in historical results)	317		(152		)	1,208			(991		)
Total	$	1,814	$	(6,365	)	$	822		$	(11,289	)
Earnings (loss) per share - basic:
As reported	$	0.22	$	—		$	0.44		$	—
Pro forma	$	0.22	$	—		$	0.44		$	—
Earnings (loss) per share - diluted:
As reported	$	—	$	—		$	—		$	—
Pro forma	$	0.03	$	—		$	0.03		$	—

^{(1)  Significant assumptions and adjustments in preparation of the pro forma information include the following: (i) for the cash portion of the purchase price, the Company assumed borrowings under the Company's revolving line of credit with interest computed based on the effective interest rate of 1.79% as of June 30, 2015; (ii) for assumed debt financing directly associated with the acquisition of specific self storage properties, interest was computed for the entirety of the periods presented using the effective interest rates under such financings; and (iii) for acquisition costs of $1.3 million incurred during the six months ended June 30, 2015, pro forma adjustments give effect to these costs as if they were incurred on January 1, 2014.}

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SELF STORAGE PROPERTIES

6 Months Ended

Jun. 30, 2015

Real Estate [Abstract]

SELF STORAGE PROPERTIES

SELF STORAGE PROPERTIES

Self storage properties are summarized as follows (dollars in thousands):

	June 30,			December 31,
	2015			2014
Land	$	268,814		$	236,691
Buildings and improvements	701,930			600,284
Furniture and equipment	2,034			1,966
Total self storage properties	972,778			838,941
Less accumulated depreciation	(52,509		)	(39,614		)
Self storage properties, net	$	920,269		$	799,327

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SELF STORAGE PROPERTY ACQUISITIONS (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Schedule of business combinations

The following table summarizes, by calendar quarter, the consideration for the business combinations completed by the Company during the six months ended June 30, 2015 (dollars in thousands):

Acquisitions Closed During the Three Months Ended:		Summary of Consideration
	Number of Properties			Value of OP Equity (1)		Settlement of Note Receivable		Liabilities Assumed (Assets Acquired)
		Cash						Mortgages(3)		Other		Total
March 31, 2015	6	$	6,991	$	8,954	$	1,778	$	16,442	$	70	$	34,235	(2)
June 30, 2015	21	41,277		22,971		—		30,547		288		95,083
Total	27	$	48,268	$	31,925	$	1,778	$	46,989	$	358	$	129,318

^{(1)  Value of OP equity represents the fair value of OP units and subordinated performance units.}  

^{(2)  Excludes the fair value of noncontrolling interests associated with self storage properties acquired in DownREIT partnerships which amounted to $6.8 million for the three months ended March 31, 2015. We estimate the portion of the fair value of the net assets owned by noncontrolling interests based on the fair value of the real estate and debt assumed.} 

^{(3)  Includes fair value of debt adjustment for assumed mortgages of approximately $2.0 million.}

Schedule of pro forma information

The following table summarizes on a pro forma basis the results of operations for the three and six months ended June 30, 2015 and 2014 (dollars in thousands, except per share amounts):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015			2014
Pro forma revenue:
Historical results	$	31,650	$	16,215		$	59,941		$	29,376
April-May 2015 Acquisitions (excluding those in historical results)	961		2,629			3,782			5,215
January 2015 Acquisitions (excluding those in historical results)	—		1,226			86			2,443
Total	$	32,611	$	20,070		$	63,809		$	37,034
Pro forma net income (loss): (1)
Historical results	$	93	$	(6,158	)	$	(2,678	)	$	(8,961	)
April-May 2015 Acquisitions (excluding those in historical results)	1,404		(55		)	2,292			(1,337		)
January 2015 Acquisitions (excluding those in historical results)	317		(152		)	1,208			(991		)
Total	$	1,814	$	(6,365	)	$	822		$	(11,289	)
Earnings (loss) per share - basic:
As reported	$	0.22	$	—		$	0.44		$	—
Pro forma	$	0.22	$	—		$	0.44		$	—
Earnings (loss) per share - diluted:
As reported	$	—	$	—		$	—		$	—
Pro forma	$	0.03	$	—		$	0.03		$	—

^{(1)  Significant assumptions and adjustments in preparation of the pro forma information include the following: (i) for the cash portion of the purchase price, the Company assumed borrowings under the Company's revolving line of credit with interest computed based on the effective interest rate of 1.79% as of June 30, 2015; (ii) for assumed debt financing directly associated with the acquisition of specific self storage properties, interest was computed for the entirety of the periods presented using the effective interest rates under such financings; and (iii) for acquisition costs of $1.3 million incurred during the six months ended June 30, 2015, pro forma adjustments give effect to these costs as if they were incurred on January 1, 2014.}

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SUBSEQUENT EVENTS

6 Months Ended

Jun. 30, 2015

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

Self Storage Property Acquisitions

In July and August 2015, the Company acquired 12 self storage properties with an estimated fair value of approximately $94 million. Consideration for these acquisitions included approximately $78 million of net cash and the issuance of OP equity of approximately $8.0 million (consisting of approximately 660,000 OP Units). Of these acquisitions, one was acquired by us from a PRO and 11 were acquired by us from third-party sellers. Certain of these self storage properties were acquired in DownREIT partnerships. The estimated fair value of noncontrolling interests associated with these partnerships was $8.3 million.

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EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings (loss) per common share for the three and six months ended June 30, 2015 and 2014, respectively (in thousands, except per share amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Earnings (loss) per common share - basic and diluted
Numerator
Net income (loss)	$	93		$	(6,158	)	$	(2,678	)	$	(8,961	)
Net loss attributable to noncontrolling interests	3,371			6,158			6,142			8,961
Net income (loss) attributable to National Storage Affiliates Trust	3,464			—			3,464			—
Distributed and undistributed earnings allocated to participating securities	(3		)	—			(3		)	—
Net income (loss) attributable to common shareholders - basic	3,461			—			3,461			—
Effect of assumed conversion of dilutive securities	(3,371		)	—			(3,371		)	—
Net income (loss) attributable to common shareholders - diluted	$	90		$	—		$	90		$	—
Denominator
Weighted average shares outstanding - basic	15,517			1			7,802			1
Effect of dilutive securities:
Weighted average OP units outstanding	20,208			—			10,104			—
Weighted average DownREIT OP unit equivalents outstanding	1,415			—			708			—
Weighted average LTIP units outstanding	1,247			—			624			—
Subordinated performance units and DownREIT subordinated performance unit equivalents	14,178			—			7,089			—
Weighted average shares outstanding - diluted	52,565			1			26,327			1
Earnings (loss) per share - basic	$	0.22		$	—		$	0.44		$	—
Earnings (loss) per share - diluted	$	—		$	—		$	—		$	—

As discussed in Note 3, the Company did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of the Company's initial public offering. As a result, all of our operating partnership's profits and losses for the period from January 1, 2015 to April 28, 2015 and the three and six months ended June 30, 2014 were allocated to noncontrolling interests.

Outstanding equity interests of our operating partnership and DownREIT partnerships are considered potential common shares for purposes of calculating diluted earnings (loss) per share as the unitholders may, through the exercise of redemption rights, obtain common shares, subject to various restrictions. Basic earnings per share is calculated based on the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated by further adjusting for the dilutive impact using the treasury stock method for unvested LTIP units subject to a service condition outstanding during the period and the if-converted method for any convertible securities outstanding during the period.

One year from the completion of the initial public offering, OP units in our operating partnership are redeemable for cash or, at our option, exchangeable for common shares on a one-for-one basis, subject to certain adjustments and five years after the completion of the initial public offering or, in the case of DownREIT limited partnership agreements ("DownREIT LPAs") entered into after the initial public offering, five years after the date of the applicable DownREIT LPA, DownREIT OP units are redeemable for cash or, at our option, exchangeable for OP units in our operating partnership on a one-for-one basis, subject to certain adjustments in each case.

LTIP units may also, under certain circumstances, be convertible into OP units, which are exchangeable for common shares as described above. Certain LTIP units vested prior to or upon the completion of the Company's initial public offering and certain LTIP units will vest upon the satisfaction of a future service condition. Vested LTIP units and unvested LTIP units that vest based on a service condition are allocated income or loss in a similar manner as OP units. Unvested LTIP units subject to a service condition are evaluated for dilution using the treasury stock method. For the three and six months ended June 30, 2015, 398,817 unvested LTIP units that vest based on a service condition are excluded from the calculation of diluted earnings (loss) per share as they are not dilutive to earnings (loss) per share. In addition, certain LTIP units vest upon the future acquisition of properties sourced by PROs. For the three and six months ended June 30, 2015, 522,900 unvested LTIP units that vest upon the future acquisition of properties are excluded from the calculation of diluted earnings (loss) per share because the contingency for the units to vest has not been attained as of the end of the reported periods.

Subordinated performance units may also, under certain circumstances, be convertible into OP units which are exchangeable for common shares as described above, and DownREIT subordinated performance units may, under certain circumstances, be exchangeable for subordinated performance units on a one-for-one basis. Subordinated performance units are only convertible into OP units, beginning two years following the completion of the initial public offering and then (i) at the holder’s election only upon the achievement of certain performance thresholds relating to the properties to which such subordinated performance units relate or (ii) at our election upon a retirement event of a PRO that holds such subordinated performance units or upon certain qualifying terminations.

Although subordinated performance units and DownREIT subordinated performance units may only be convertible beginning two years following the completion of the initial public offering, we assume a hypothetical conversion of each subordinated performance unit (including each DownREIT subordinated performance unit) into OP units (with subsequently assumed redemption into common shares) for the purposes of calculating diluted weighted average common shares. This hypothetical conversion is calculated using historical financial information prior to the completion of the Company's initial public offering on April 28, 2015, and as a result, is not necessarily indicative of the subsequent results of operations, cash flows or financial position of the Company following the initial public offering or upon expiration of the two-year lock out period on conversions.

Participating securities, which consist of unvested restricted shares, receive dividends equal to those received by common shares. The effect of participating securities for the periods presented above is calculated using the two-class method of allocating distributed and undistributed earnings.

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OTHER ASSETS

6 Months Ended

Jun. 30, 2015

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

OTHER ASSETS

OTHER ASSETS

Other assets consist of the following (dollars in thousands):

	June 30,		December 31,
	2015		2014
Customer in-place leases, net of accumulated amortization of $7,308 and $5,469, respectively	$	4,950	$	7,700
Receivables:
Trade, net	893		979
PROs and other affiliates	336		416
Note receivable from PRO	—		1,778
Property acquisition deposits	170		770
Prepaid expenses and other	1,691		1,017
Corporate furniture and equipment, net	213		198
Deferred offering costs	—		3,086
Total	$	8,253	$	15,944

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DEBT FINANCING

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

DEBT FINANCING

DEBT FINANCING

The Company's outstanding debt as of June 30, 2015 and December 31, 2014 is summarized as follows (dollars in thousands):

	Interest	June 30,		December 31,
	Rate (1)	2015		2014
Credit Facility:
Revolving line of credit	1.79%	$	80,917	$	166,217
Term loan	2.75%	144,558		144,558
Unsecured term loan	—	—		50,000
Fixed rate mortgages payable	3.93%	182,341		153,416
Variable rate mortgages payable	—	—		83,500
Total		$	407,816	$	597,691

^{(1)  Represents the effective interest rate as of June 30, 2015. Effective interest rate incorporates the stated rate plus the impact of interest rate cash flow hedges and discount and premium amortization, if applicable. For the revolving line of credit, the effective interest rate excludes fees for unused borrowings.} 

Credit Facility

On April 1, 2014 (as amended in July 2014), the Company entered into a $425.0 million senior secured credit facility (the "credit facility") with a syndicated group of lenders consisting of seven financial institutions. Upon completion of our initial public offering, this credit facility, which was secured, became unsecured. The credit facility consists of two components:

• A senior revolving credit facility (the "revolving line of credit"), which provides for a total borrowing commitment up to $280.4 million, whereby the Company may borrow, repay and re-borrow amounts under the revolving line of credit. The borrowing commitment is subject to a borrowing base calculation, which only includes self storage properties with an occupancy rate of at least 75% on a combined basis. As of June 30, 2015, we had the capacity to borrow $199.5 million, subject to the borrowing base calculation. The Company is required to pay a fee which ranges from 0.20% to 0.30% of unused borrowings under the revolving line of credit. As of June 30, 2015, the pricing grid under the revolving line of credit provides for an interest rate equal to one-month London Interbank Offered Rate ("LIBOR") plus 1.60%. The revolving line of credit matures in March 2017 and the Company may elect an extension of the maturity date until March 2018 by paying an extension fee equal to 0.20% of the total borrowing commitment at the time of the extension.

• A $144.6 million senior term loan (the "term loan") which provides that amounts borrowed may be repaid at any time but not re-borrowed. As of June 30, 2015, the pricing grid under the term loan provides for an interest rate equal to one-month LIBOR plus 1.50%. No principal payments are required under the term loan until the maturity date in March 2018.

The terms of the credit facility limit the Company's ability to make distributions, incur additional debt, and acquire or sell significant assets. The credit facility requires compliance with certain financial and nonfinancial covenants, including a maximum total leverage ratio, a minimum fixed charge coverage ratio, and minimum net worth. At June 30, 2015, we were in compliance with all such covenants.

We used a portion of the proceeds received from our initial public offering to pay down $96.3 million of the outstanding balance of the revolving line of credit.

Unsecured Term Loan

On April 1, 2014, the Company entered into a senior unsecured term loan (the "unsecured term loan") with a syndicated group of lenders consisting of three financial institutions. The unsecured term loan provided for maximum borrowings of $50.0 million. The loan originally matured on April 1, 2015 but was extended until October 1, 2015 in exchange for a prescribed fee of $250,000. There was a mandatory repayment of this loan upon the occurrence of a capital event (such as completion of the Company's initial public offering) as defined in the loan agreement, and following the completion of our initial public offering, we used a portion of the net proceeds from our initial public offering to repay the $50.0 million unsecured term loan. The repayment resulted in a $0.2 million write-off of unamortized debt issuance costs. Prior to the repayment, payments were limited to interest only, to be paid on a monthly basis, and the outstanding principal balance bore interest at one-month LIBOR plus 5.00%.

Fixed Rate Mortgages Payable

Fixed rate mortgages have scheduled maturities at various dates through November 2024, and have effective interest rates that range from 2.20% to 5.00%. Principal and interest are generally payable monthly or in monthly interest-only payments with balloon payments due at maturity. As discussed in Note 5, we assumed fixed rate mortgages of $47.0 million in connection with 16 of the properties acquired during the six months ended June 30, 2015. We repaid $11.0 million of these assumed mortgages during the six months ended June 30, 2015.

Variable Rate Mortgages Payable

Variable rate mortgages had contractual maturities at various dates through October 2015, and had effective interest rates that ranged from 2.43% to 9.65%. Following the completion of our initial public offering during the three months ended June 30, 2015, we used a portion of the net proceeds from our initial public offering to repay all $83.5 million of the outstanding variable rate mortgages. In connection with the repayments, the Company incurred a $0.5 million prepayment penalty and recorded a $0.2 million write-off of unamortized debt issuance costs. Prior to the repayment, principal and interest on this debt was generally payable in monthly interest-only payments with balloon payments due at maturity.

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RELATED PARTY TRANSACTIONS

6 Months Ended

Jun. 30, 2015

Related Party Transactions [Abstract]

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS

Supervisory and Administrative Fees

The Company has entered into asset management agreements with the PROs to continue providing leasing, operating, supervisory and administrative services related to the self storage properties contributed by and acquired from the PROs. The PROs are the same entities that provided similar services prior to the respective dates that the self storage properties were contributed to or acquired by the Company. The asset management agreements generally provide for fees ranging from 5% to 6% of gross revenue for the managed self storage properties. During the three months ended June 30, 2015 and 2014, the Company incurred $1.8 million and $0.9 million, respectively, for supervisory and administrative fees to the PROs and during the six months ended June 30, 2015 and 2014, the Company incurred $3.4 million and $1.7 million, respectively, for supervisory and administrative fees to the PROs. Such fees are included in general and administrative expenses in the accompanying statements of operations.

Affiliate Payroll Services

The employees responsible for operation of the self storage properties are employees of the PROs who charge the Company for the costs associated with the respective employees. For the three months ended June 30, 2015 and 2014, the Company incurred $3.2 million and $1.6 million, respectively, for payroll and related costs reimbursable to these affiliates, and for the six months ended June 30, 2015 and 2014, the Company incurred $6.1 million and $3.1 million, respectively, for payroll and related costs reimbursable to these affiliates. Such costs are included in property operating expenses in the accompanying statements of operations.

Affiliate Call Center Services

On April 1, 2015, the Company acquired a centralized call center for 50,000 OP units from SecurCare, an affiliate of NSA Predecessor. Because the Company and SecurCare are under common control, the assets acquired and liabilities assumed were recorded at SecurCare's historical carrying value, which was a nominal amount as of the acquisition date. SecurCare continues to manage call center services to support self storage property operations and the fees paid to SecurCare for these services for the three months ended June 30, 2015 are included in the supervisory and administrative fees discussed above. The call center utilizes approximately 1,500 square feet in one of the Company's self storage properties acquired from NSA Predecessor for annual rent of approximately $25,000.

Prior to the acquisition, for the three months ended June 30, 2014, the Company incurred call center charges of $0.1 million, and for the six months ended June 30, 2015 and 2014, the Company incurred call center charges of $0.2 million and $0.2 million, respectively. Such call center costs are included in property operating expenses in the accompanying statements of operations.

Brokerage Fees

In connection with self-storage properties contributed by NSA Predecessor, during the six months ended June 30, 2014 the Company recognized a $3.2 million contractually obligated transaction expense payable to SecurCare, an affiliate of NSA Predecessor. In April 2014, the Company issued subordinated performance units in full payment of this amount.

Notes Receivable

In connection with the planned acquisition of certain self storage properties, the Company made a bridge loan of approximately $8.0 million to a PRO on July 1, 2014. This loan did not bear interest and was repaid as the related self storage properties were acquired. Through December 31, 2014, 13 of the self storage properties had been acquired and bridge loan advances totaling $6.2 million were applied to offset the acquisition consideration otherwise payable by the Company. As of December 31, 2014, the bridge loan balance of $1.8 million is included in other assets in the accompanying balance sheet. In January 2015, the remaining balance of the bridge loan was applied to offset the acquisition consideration otherwise payable by the Company related to two self storage property acquisitions.

Notes Payable

During the six months ended June 30, 2015, in connection with the acquisition of self storage properties owned in DownREIT partnerships, the Company entered into bridge loan agreements for $5.3 million payable to principals of the PRO that contributed the properties. The notes bore interest at a weighted average fixed rate of 3.3% and were fully repaid during the six months ended June 30, 2015.

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OTHER ASSETS (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Customer in-place leases, net of accumulated amortization of $7,308 and $5,469, respectively	$ 4,950	$ 7,700
Receivables:
Trade, net	893	979
PROs and other affiliates	336	416
Note receivable from PRO	0	1,778
Property acquisition deposits	170	770
Prepaid expenses and other	1,691	1,017
Corporate furniture and equipment, net	213	198
Deferred offering costs	0	3,086
Total	8,253	15,944
Customer in-place leases, accumulated amortization	$ 7,308	$ 5,469

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NONCONTROLLING INTERESTS (Tables)

6 Months Ended

Jun. 30, 2015

Noncontrolling Interest [Abstract]

Schedule of outstanding equity interests

As of June 30, 2015 and December 31, 2014, noncontrolling interests consisted of the following:

	June 30,	December 31,
	2015	2014
OP units	20,705,654	18,817,088
Subordinated performance units	9,232,067	8,447,679
LTIP units	2,730,540	2,689,780
DownREIT units
DownREIT OP units	1,415,349	1,275,979
DownREIT subordinated performance units	3,688,205	3,009,884
Total	37,771,815	34,240,410

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EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of elements used in calculating basic and diluted earnings per common share

The following table sets forth the computation of basic and diluted earnings (loss) per common share for the three and six months ended June 30, 2015 and 2014, respectively (in thousands, except per share amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Earnings (loss) per common share - basic and diluted
Numerator
Net income (loss)	$	93		$	(6,158	)	$	(2,678	)	$	(8,961	)
Net loss attributable to noncontrolling interests	3,371			6,158			6,142			8,961
Net income (loss) attributable to National Storage Affiliates Trust	3,464			—			3,464			—
Distributed and undistributed earnings allocated to participating securities	(3		)	—			(3		)	—
Net income (loss) attributable to common shareholders - basic	3,461			—			3,461			—
Effect of assumed conversion of dilutive securities	(3,371		)	—			(3,371		)	—
Net income (loss) attributable to common shareholders - diluted	$	90		$	—		$	90		$	—
Denominator
Weighted average shares outstanding - basic	15,517			1			7,802			1
Effect of dilutive securities:
Weighted average OP units outstanding	20,208			—			10,104			—
Weighted average DownREIT OP unit equivalents outstanding	1,415			—			708			—
Weighted average LTIP units outstanding	1,247			—			624			—
Subordinated performance units and DownREIT subordinated performance unit equivalents	14,178			—			7,089			—
Weighted average shares outstanding - diluted	52,565			1			26,327			1
Earnings (loss) per share - basic	$	0.22		$	—		$	0.44		$	—
Earnings (loss) per share - diluted	$	—		$	—		$	—		$	—

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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized losses forecasted to be included in earnings transferred from AOCI in the next twelve months	$ 1,300,000
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed rate mortgages, fair value	182,300,000	$ 153,400,000
Level 2 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed rate mortgages, fair value	$ 187,700,000	$ 158,300,000
Weighted average market interest rate	3.53%	3.59%
Weighted average contractual interest rate	5.10%	5.11%
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	$ 125,000,000.0	$ 125,000,000.0
Weighted average remaining term	2 years 9 months
Weighted average fixed rate	1.42%
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	$ 7,500,000	$ 7,600,000
Weighted average remaining term	6 years 7 months 18 days
Weighted average fixed rate	2.28%

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 93	$ (6,158)	$ (2,678)	$ (8,961)
Other comprehensive income (loss)
Unrealized loss on derivative contracts	(104)	(1,252)	(1,270)	(1,252)
Reclassification of other comprehensive loss to interest expense	390	281	775	281
Comprehensive income (loss)	379	(7,129)	(3,173)	(9,932)
Comprehensive (income) loss attributable to noncontrolling interests	3,085	7,129	6,637	9,932
Comprehensive income (loss) attributable to National Storage Affiliates Trust	$ 3,464	$ 0	$ 3,464	$ 0

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NONCONTROLLING INTERESTS

6 Months Ended

Jun. 30, 2015

Noncontrolling Interest [Abstract]

NONCONTROLLING INTERESTS

NONCONTROLLING INTERESTS

As of June 30, 2015 and December 31, 2014, noncontrolling interests consisted of the following:

	June 30,	December 31,
	2015	2014
OP units	20,705,654	18,817,088
Subordinated performance units	9,232,067	8,447,679
LTIP units	2,730,540	2,689,780
DownREIT units
DownREIT OP units	1,415,349	1,275,979
DownREIT subordinated performance units	3,688,205	3,009,884
Total	37,771,815	34,240,410

While the Company controls our operating partnership and manages the daily operations of our operating partnership's business, the Company did not have an ownership interest or share in our operating partnership's profits and losses prior to the completion of the Company's initial public offering. The increase in OP Units, DownREIT OP units, subordinated performance units, and DownREIT subordinated performance units outstanding from December 31, 2014 to June 30, 2015 was due to the acquisition of self storage properties and a centralized call center. The increase in LTIP units outstanding from December 31, 2014 to June 30, 2015 was due to the issuance of compensatory LTIP units to third party consultants and employees.

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FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Schedule of interest rate swap derivatives fair value

Information regarding our interest rate swaps measured at fair value, which are classified within Level 2 of the GAAP fair value hierarchy, is presented below (dollars in thousands):

	Interest Rate Swaps Designated as Cash Flow Hedges			Non-hedge accounting Interest Rate Swaps			Total
Fair value at December 31, 2013	$	—		$	70		$	70
Unrealized losses included in interest expense	—			(193		)	(193		)
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	281			—			281
Unrealized losses included in accumulated other comprehensive loss	(1,252		)	—			(1,252		)
Fair value at June 30, 2014	$	(971	)	$	(123	)	$	(1,094	)
Fair value at December 31, 2014	$	(865	)	$	(207	)	$	(1,072	)
Unrealized gains included in interest expense	—			8			8
Losses on interest rate swaps reclassified into interest expense from accumulated other comprehensive loss	775			—			775
Unrealized losses included in accumulated other comprehensive loss	(1,270		)	—			(1,270		)
Fair value at June 30, 2015	$	(1,360	)	$	(199	)	$	(1,559	)

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EARNINGS PER SHARE - Narrative (Details) - Jun. 30, 2015	shares	unit / shares shares
NSA OP, LP And DownREIT Partnership [Member] | Subordinated performance units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Minimum conversion period		2 years
Unit conversion ratio		1
NSA OP, LP [Member] | LTIP units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average outstanding equity interests excluded from computation of earnings (in units) | shares	398,817	398,817
NSA OP, LP [Member] | OP units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Minimum conversion period		1 year
Unit conversion ratio		1
DownREIT Partnership [Member] | OP units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Minimum conversion period		5 years
Unit conversion ratio		1
DownREIT Partnership [Member] | Subordinated performance units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Minimum conversion period		5 years
Participating Regional Operator [Member] | Affiliated Entity [Member] | NSA OP, LP [Member] | LTIP units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average outstanding equity interests excluded from computation of earnings (in units) | shares	522,900	522,900

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles ("GAAP") and have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the consolidated financial statements have been included.

Principles of Consolidation and Noncontrolling Interest

Noncontrolling Interests

All of the limited partner equity interests in our operating partnership not held by the Company are reflected as noncontrolling interests. Noncontrolling interests also include ownership interests in DownREIT partnerships held by entities other than our operating partnership. In the consolidated statements of operations, we allocate net income (loss) attributable to noncontrolling interests to arrive at net income (loss) attributable to National Storage Affiliates Trust.

For transactions that result in changes to the Company's ownership interest in our operating partnership, the carrying amount of noncontrolling interests is adjusted to reflect such changes. The difference between the fair value of the consideration received or paid and the amount by which the noncontrolling interest is adjusted is reflected as an adjustment to additional paid-in capital on the consolidated balance sheets.

Principles of Consolidation

The Company's financial statements include the accounts of our operating partnership and its controlled subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation of entities.

Variable Interest Entity

When the Company obtains an economic interest in an entity, the Company evaluates the entity to determine if the entity is deemed a variable interest entity ("VIE"), and if the Company is deemed to be the primary beneficiary, in accordance with authoritative guidance issued on the consolidation of VIEs. When an entity is not deemed to be a VIE, the Company considers the provisions of additional guidance to determine whether the general partner controls a limited partnership or similar entity when the limited partners have certain rights. The Company consolidates (i) entities that are VIEs and of which the Company is deemed to be the primary beneficiary, and (ii) entities that are non-VIEs which the Company controls and which limited partners lack both substantive participating rights and the ability to dissolve or remove the Company without cause.

Reclassifications

Reclassifications     

Certain amounts in the financial statements and related notes have been reclassified to conform to the current year presentation. Such reclassifications do not impact our previously reported financial position or net income (loss).

Allocation of Net Income (Loss)

Allocation of Net Income (Loss)

The distribution rights and priorities set forth in our operating partnership's LP Agreement differ from what is reflected by the underlying percentage ownership interests of the unitholders. Accordingly, we allocate GAAP income (loss) utilizing the hypothetical liquidation at book value ("HLBV") method, in which we allocate income or loss based on the change in each unitholders’ claim on the net assets of our operating partnership at period end after adjusting for any distributions or contributions made during such period. The HLBV method is commonly applied to equity investments where cash distribution percentages vary at different points in time and are not directly linked to an equity holder’s ownership percentage.

The HLBV method is a balance sheet-focused approach. A calculation is prepared at each balance sheet date to determine the amount that unitholders would receive if our operating partnership were to liquidate all of its assets (at GAAP net book value) and distribute the resulting proceeds to its creditors and unitholders based on the contractually defined liquidation priorities. The difference between the calculated liquidation distribution amounts at the beginning and the end of the reporting period, after adjusting for capital contributions and distributions, is used to derive each unitholder's share of the income (loss) for the period. Due to the stated liquidation priorities and because the HLBV method incorporates non-cash items such as depreciation expense, in any given period, income or loss may be allocated disproportionately to unitholders as compared to their respective ownership percentage in our operating partnership, and net income (loss) attributable to National Storage Affiliates Trust could be more or less net income than actual cash distributions received and more or less income or loss than what may be received in the event of an actual liquidation. Additionally, the HLBV method could result in net income attributable to National Storage Affiliates Trust during a period when the Company reports a consolidated net loss, or net income attributable to National Storage Affiliates Trust in excess of the Company's consolidated net income.

Other Comprehensive Income (Loss)

Other Comprehensive Income (Loss)

We have cash flow hedge derivative instruments that are measured at fair value with unrealized gains or losses recognized in other comprehensive income (loss) with a corresponding adjustment to accumulated other comprehensive loss within equity, as discussed further in Note 11. Under the HLBV method of allocating income (loss) discussed above, a calculation is prepared at each balance sheet date by applying the HLBV method including, and excluding, the assets and liabilities resulting from our cash flow hedge derivative instruments to determine comprehensive income (loss) attributable to National Storage Affiliates Trust.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective. ASU 2014-09 is effective for the Company on January 1, 2018, with early application permitted for the Company on January 1, 2017. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which modifies the current consolidation guidance. The Company is required to adopt ASU 2015-02 for annual and interim financial statements issued for the year ending December 31, 2016. Upon adoption by the Company, ASU 2015-02 permits the use of either the modified retrospective or cumulative effect transition method. The Company is currently evaluating the impact of the provisions of ASU 2015-02 on its consolidation policies as well as the transition method to be used to implement ASU 2015-02.

In April 2015, the FASB issued ASU 2015-03, Interest—Imputation of Interest, which requires the presentation of debt issuance costs as a direct deduction from the carrying amount of the related debt liabilities. The Company does not expect ASU 2015-03 to have a material impact on the Company's results from operations, however, adoption will result in the elimination of debt issuance costs as an asset and a corresponding reduction in the carrying amount of the Company's debt financings applied retrospectively to all periods. The Company is required to adopt this ASU for annual and interim financial statements issued for the year ending December 31, 2016. Early adoption is permitted.