Strategic Storage Growth Trust 10-K 21 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Mar. 15, 2018	Jun. 30, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Trading Symbol	ck0001575428
Entity Registrant Name	STRATEGIC STORAGE GROWTH TRUST, INC.
Entity Central Index Key	1,575,428
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$ 304,087,002
Class A Common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		19,034,444
Class T Common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		7,594,738

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Real estate facilities:
Land	$ 40,955,234	$ 24,315,650
Buildings	125,878,582	57,722,965
Site improvements	9,527,049	5,542,989
Real estate facilities, gross	176,360,865	87,581,604
Accumulated depreciation	(7,052,779)	(3,300,523)
Real estate facilities, net	169,308,086	84,281,081
Construction in process	10,753,238	2,174,191
Real estate facilities, net	180,061,324	86,455,272
Cash and cash equivalents	52,720,171	3,642,631
Other assets, net	5,825,906	3,156,769
Debt issuance costs, net	465,378	292,160
Intangible assets, net	856,979	391,143
Total assets	239,929,758	93,937,975
LIABILITIES AND EQUITY
Secured debt, net	5,594,779	12,509,308
Accounts payable and accrued liabilities	3,800,992	1,499,984
Due to affiliates	3,406,088	963,535
Distributions payable	833,488	305,764
Total liabilities	13,635,347	15,278,591
Commitments and contingencies (Note 8)
Redeemable common stock	5,679,485	1,086,603
Equity:
Preferred Stock, $0.001 par value; 200,000,000 shares authorized; none issued and outstanding at December 31, 2017 and 2016
Additional paid-in capital	247,552,584	92,442,198
Distributions	(10,655,612)	(2,010,167)
Accumulated deficit	(16,607,616)	(12,655,490)
Accumulated other comprehensive income (loss)	371,923	(153,079)
Total Strategic Storage Growth Trust, Inc. equity	220,687,789	77,633,786
Noncontrolling interests in our Operating Partnership	(72,863)	(61,005)
Total equity	220,614,926	77,572,781
Total liabilities and equity	239,929,758	93,937,975
Class A Common stock
Equity:
Common stock, Value	18,943	8,607
Total equity	18,943	8,607
Class T Common stock
Equity:
Common stock, Value	7,567	1,717
Total equity	$ 7,567	$ 1,717

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	200,000,000	200,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Class A Common stock
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	350,000,000	350,000,000
Common Stock, shares issued	18,942,639	8,607,246
Common Stock, shares outstanding	18,942,639	8,607,246
Class T Common stock
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	350,000,000	350,000,000
Common Stock, shares issued	7,566,333	1,716,957
Common Stock, shares outstanding	7,566,333	1,716,957

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Self storage rental revenue	$ 13,641,041	$ 9,240,486	$ 4,708,208
Ancillary operating revenue	145,320	73,273	149,199
Total revenues	13,786,361	9,313,759	4,857,407
Operating expenses:
Property operating expenses	5,945,010	4,016,072	2,205,173
Property operating expenses – affiliates	1,755,632	982,736	558,250
General and administrative	2,135,876	1,865,419	1,224,892
Depreciation	3,930,501	2,169,600	1,161,013
Intangible amortization expense	873,164	1,128,959	946,146
Acquisition expenses - affiliates	2,023,134	753,090	822,798
Other property acquisition expenses	939,151	255,834	289,824
Total operating expenses	17,602,468	11,171,710	7,208,096
Operating loss	(3,816,107)	(1,857,951)	(2,350,689)
Other income (expense):
Interest expense	(120,241)	(1,420,961)	(651,479)
Interest expense – debt issuance costs	(398,149)	(636,467)	(375,319)
Other	378,555	(39,995)	1,766
Net loss	(3,955,942)	(3,955,374)	(3,375,721)
Less: Distributions to preferred unitholders in our Operating Partnership		(1,365,704)	(1,893,841)
Less: Accretion of preferred equity costs		(76,724)	(296,548)
Net loss attributable to the noncontrolling interests in our Operating Partnership	3,816	25,341	100,338
Net loss attributable to Strategic Storage Growth Trust, Inc. common stockholders	$ (3,952,126)	$ (5,372,461)	$ (5,465,772)
Class A Common stock
Other income (expense):
Net loss per share—basic and diluted	$ (0.17)	$ (0.99)	$ (4.59)
Weighted average shares outstanding—basic and diluted	16,810,702	5,003,663	1,190,486
Class T Common stock
Other income (expense):
Net loss per share—basic and diluted	$ (0.17)	$ (0.99)	$ (4.59)
Weighted average shares outstanding—basic and diluted	6,363,218	442,316	1,250

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (3,955,942)	$ (3,955,374)	$ (3,375,721)
Other comprehensive loss:
Foreign currency translation adjustments	525,002	(153,079)
Comprehensive loss	(3,430,940)	(4,108,453)	(3,375,721)
Less: Distributions to preferred unitholders in our Operating Partnership		(1,365,704)	(1,893,841)
Less: Accretion of preferred equity costs		(76,724)	(296,548)
Comprehensive loss attributable to noncontrolling interests:
Comprehensive loss attributable to the noncontrolling interests in our Operating Partnership	3,361	25,904	100,338
Comprehensive loss attributable to Strategic Storage Growth Trust, Inc. common stockholders	$ (3,427,579)	$ (5,524,977)	$ (5,465,772)

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($)	Total	Preferred Equity in our Operating Partnership	Additional Paid-in Capital	Distributions	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total Strategic Storage Growth Trust,Inc.Equity	Noncontrolling Interests in our Operating Partnership	Class A Common stock	Class T Common stock	Redeemable common stock
Beginning Balance at Dec. 31, 2014	$ 3,095,402	$ 9,908,304	$ 4,839,882		$ (1,817,257)		$ 3,023,366	$ 72,036	$ 741
Beginning Balance (in shares) at Dec. 31, 2014									740,814
Gross proceeds from issuance of common stock	18,920,107		18,918,202				18,920,107		$ 1,887	$ 18
Gross proceeds from issuance of common stock (in shares)									1,887,318	17,951
Offering costs	(3,028,827)		(3,028,827)				(3,028,827)
Changes to redeemable common stock	(10,706)		(10,706)				(10,706)				$ 10,706
Issuance of restricted stock			(6)						$ 6
Issuance of restricted stock (in shares)									6,250
Distributions	(37,073)			$ (37,073)			(37,073)
Distributions of common stock			(41)						$ 41
Distribution of common stock (in shares)									40,730	135
Distributions to noncontrolling interests	(316)							(316)
Issuance of shares for distribution reinvestment plan	10,706		10,705				10,706		$ 1
Issuance of shares for distribution reinvestment plan (in shares)									1,127
Stock based compensation expense	6,216		6,216				6,216
Net loss attributable to Strategic Storage Growth Trust, Inc.	(5,465,772)				(5,465,772)		(5,465,772)
Net loss attributable to the noncontrolling interests	(100,338)							(100,338)
Gross proceeds from issuance of preferred equity in our Operating Partnership		7,197,995
Redemption of preferred equity in our Operating Partnership		(1,500,000)
Preferred equity issuance costs		(17,995)
Accretion of preferred equity issuance costs		296,548
Ending Balance at Dec. 31, 2015	13,389,399	15,884,852	20,735,425	(37,073)	(7,283,029)		13,418,017	(28,618)	$ 2,676	$ 18
Ending Balance at Dec. 31, 2015											10,706
Ending Balance (in shares) at Dec. 31, 2015									2,676,239	18,086
Gross proceeds from issuance of common stock	80,418,755		80,411,258				80,418,755		$ 5,805	$ 1,692
Gross proceeds from issuance of common stock (in shares)									5,804,542	1,692,172
Offering costs	(8,723,496)		(8,723,496)				(8,723,496)
Changes to redeemable common stock	(1,112,347)		(1,112,347)				(1,112,347)				1,112,347
Redemptions of common stock											(36,450)
Issuance of restricted stock			(2)						$ 2
Issuance of restricted stock (in shares)									2,500
Distributions	(1,973,094)			(1,973,094)			(1,973,094)
Distributions of common stock			(20)						$ 19	$ 1
Distribution of common stock (in shares)									18,694	584
Distributions to noncontrolling interests	(7,046)							(7,046)
Issuance of shares for distribution reinvestment plan	1,112,347		1,112,236				1,112,347		$ 105	$ 6
Issuance of shares for distribution reinvestment plan (in shares)									105,271	6,115
Stock based compensation expense	19,144		19,144				19,144
Net loss attributable to Strategic Storage Growth Trust, Inc.	(5,372,461)				(5,372,461)		(5,372,461)
Net loss attributable to the noncontrolling interests	(25,341)							(25,341)
Foreign currency translation adjustment	(153,079)					$ (153,079)	(153,079)
Redemption of preferred equity in our Operating Partnership		(15,961,576)
Accretion of preferred equity issuance costs		$ 76,724
Ending Balance at Dec. 31, 2016	77,572,781		92,442,198	(2,010,167)	(12,655,490)	(153,079)	77,633,786	(61,005)	$ 8,607	$ 1,717
Ending Balance at Dec. 31, 2016	1,086,603										1,086,603
Ending Balance (in shares) at Dec. 31, 2016									8,607,246	1,716,957
Gross proceeds from issuance of common stock	171,162,483		171,146,673				171,162,483		$ 10,060	$ 5,750
Gross proceeds from issuance of common stock (in shares)									10,060,184	5,749,586
Offering costs	(15,711,584)		(15,711,584)				(15,711,584)
Changes to redeemable common stock	(4,803,792)		(4,803,792)				(4,803,792)				4,803,792
Rescission of common stock	(350,000)		(349,969)				(350,000)		$ (31)
Rescission of common stock (in shares)									(31,334)
Redemptions of common stock	(25)						(25)		$ (25)		(210,910)
Redemptions of common stock (in shares)									(25,247)
Issuance of restricted stock	3						3		$ 3
Issuance of restricted stock (in shares)									2,500
Distributions	(8,645,445)			(8,645,445)			(8,645,445)
Distributions to noncontrolling interests	(8,042)							(8,042)
Issuance of shares for distribution reinvestment plan	$ 4,803,792		4,803,363				4,803,792		$ 329	$ 100
Issuance of shares for distribution reinvestment plan (in shares)	542,000								329,290	99,790
Stock based compensation expense	$ 25,695		25,695				25,695
Net loss attributable to Strategic Storage Growth Trust, Inc.	(3,952,126)				(3,952,126)		(3,952,126)
Net loss attributable to the noncontrolling interests	(3,816)							(3,816)
Foreign currency translation adjustment	525,002					525,002	525,002
Ending Balance at Dec. 31, 2017	220,614,926		$ 247,552,584	$ (10,655,612)	$ (16,607,616)	$ 371,923	$ 220,687,789	$ (72,863)	$ 18,943	$ 7,567
Ending Balance at Dec. 31, 2017	$ 5,679,485										$ 5,679,485
Ending Balance (in shares) at Dec. 31, 2017									18,942,639	7,566,333

Consolidated Statements of Equ7

Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class A Common stock
Distributions, per share	$ 0.40	$ 0.35	$ 0.016
Class T Common stock
Distributions, per share	$ 0.40	$ 0.35	$ 0.016

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net loss	$ (3,955,942)	$ (3,955,374)	$ (3,375,721)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:
Depreciation and amortization	5,201,814	3,935,026	2,380,225
Expense related to issuance of restricted stock	25,695	19,144	6,216
Increase (decrease) in cash and cash equivalents from changes in assets and liabilities:
Other assets, net	(495,494)	(300,273)	(501,401)
Accounts payable and accrued liabilities	1,180,447	690,502	747,237
Due to affiliates	85,392	(221,435)	70,733
Net cash provided by (used in) operating activities	2,041,912	167,590	(672,711)
Cash flows from investing activities:
Purchase of real estate	(88,250,000)	(25,389,653)	(42,871,250)
Additions and development to real estate facilities	(8,125,117)	(3,930,997)	(648,294)
Deposits on acquisitions of real estate facilities	(2,450,000)	(1,000,000)	(1,292,105)
Return of deposits on acquisitions of real estate facilities		331,714	500,000
Investment in equity method investment	(1,282,050)
Net cash used in investing activities	(100,107,167)	(29,988,936)	(44,311,649)
Cash flows from financing activities:
Proceeds from issuance of revolving secured debt	5,000,000	7,950,000	28,754,614
Principal payments of revolving secured debt	(12,647,000)	(38,603,000)
Proceeds from the issuance of non-revolving secured debt	771,084	5,053,000
Debt issuance costs	(626,014)	(320,166)	(772,189)
Gross proceeds from issuance of common stock	171,980,653	79,620,048	18,961,011
Offering costs	(13,375,060)	(7,823,592)	(4,452,137)
Rescission of common stock	(350,000)
Redemptions of common stock	(237,932)
Distributions paid to preferred unitholders in our Operating Partnership		(2,408,098)	(1,081,208)
Distributions paid to common stockholders	(3,313,927)	(576,046)	(5,983)
Distributions to noncontrolling interests	(8,044)	(6,683)
Proceeds from issuance of preferred equity in our Operating Partnership			7,180,000
Redemption of preferred equity in our Operating Partnership		(15,961,576)	(1,500,000)
Net cash provided by financing activities	147,193,760	26,923,887	47,084,108
Impact of foreign exchange rate changes on cash and cash equivalents	(50,965)	(59,956)
Net change in cash and cash equivalents	49,077,540	(2,957,415)	2,099,748
Cash and cash equivalents, beginning of period	3,642,631	6,600,046	4,500,298
Cash and cash equivalents, end of period	52,720,171	3,642,631	6,600,046
Supplemental disclosures and non-cash transactions:
Cash paid for interest	419,338	1,589,570	594,587
Interest capitalized	275,726	152,651
Supplemental disclosure of noncash activities:
Deposits applied to purchase of real estate facilities	400,000
Construction in process in accounts payable and accrued liabilities	1,093,663
Proceeds from issuance of common stock in other assets		818,167	25,640
Offering costs included in accounts payable and accrued liabilities		20,637	58,886
Offering costs included in due to affiliates	3,063,039	939,946	7,973
Distributions payable to common stockholders	833,488	305,764
Increase in distributions payable to preferred unitholders in our Operating Partnership			873,809
Stock distributions of common stock		20	41
Issuance of shares for distribution reinvestment plan	4,803,792	1,112,347	10,706
Redemptions of common stock included in accounts payable and accrued liabilities	$ 9,454	$ 36,450
Preferred equity issuance costs			$ 17,995

Organization

Organization	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Organization	Note 1. Organization Strategic Storage Growth Trust, Inc., a Maryland corporation (the “Company”), was formed on March 12, 2013 under the Maryland General Corporation Law for the purpose of engaging in the business of investing in self storage facilities. The Company’s year-end is December 31. As used in this report, “we,” “us,” “our,” and “Company” refer to Strategic Storage Growth Trust, Inc. and each of our subsidiaries. SmartStop Asset Management, LLC, a Delaware limited liability company organized in 2013, was the sponsor of our Offering of shares of common stock (our “Sponsor”), as described below. Our Sponsor is a company focused on providing real estate advisory, asset management, and property management services. Our Sponsor owns 97.5% of the economic interests (and 100% of the voting membership interests) of SS Growth Advisor, LLC (our “Advisor”) and owns 100% of SS Growth Property Management, LLC (our “Property Manager”). On October 1, 2015, SmartStop Self Storage, Inc. (“SmartStop”) and Extra Space Storage Inc. (“Extra Space”), along with subsidiaries of each of SmartStop and Extra Space, closed on a merger transaction (the “Merger”) in which SmartStop was acquired by Extra Space for $13.75 per share in cash, representing an enterprise value of approximately $1.4 billion. At the closing of the Merger, our Sponsor, which was previously owned by SmartStop, was sold to an entity controlled by H. Michael Schwartz, our Chairman of the Board of Directors and Chief Executive Officer, and became our Sponsor. The former executive management team of SmartStop continued to serve on the executive management team for our Sponsor. In addition, our management team at the time of the Merger continues to serve on our management team, as well as the management team of our Advisor and Property Manager. We have no employees. Our Advisor, a Delaware limited liability company, was formed on March 12, 2013. Our Advisor is responsible for managing our affairs on a day-to-day basis and identifying and making acquisitions and investments on our behalf under the terms of the advisory agreement we have with our Advisor (our “Advisory Agreement”). The officers of our Advisor are also officers of us and our Sponsor. Our Second Articles of Amendment and Restatement, as amended, authorize 350,000,000 shares of Class A common stock (“Class A Shares”), $0.001 par value per share and 350,000,000 shares of Class T common stock (“Class T Shares”), $0.001 par value per share and 200,000,000 shares of preferred stock with a par value of $0.001. On June 17, 2013, we commenced a private placement offering to accredited investors only for a maximum of $109.5 million in shares of common stock, including shares being offered pursuant to our distribution reinvestment plan (the “Private Offering”). On May 23, 2014, we satisfied the minimum offering requirements of $1 million from our Private Offering and commenced formal operations. We terminated the Private Offering on January 16, 2015. We raised gross offering proceeds of approximately $7.8 million from the issuance of approximately 830,000 shares pursuant to the Private Offering. On January 20, 2015, we commenced a public offering of a maximum of $1.0 billion in common shares for sale to the public (the “Primary Offering”) and $95.0 million in common shares for sale pursuant to our distribution reinvestment plan (collectively, the “Public Offering”). The close down of our Primary Offering occurred on March 31, 2017. We sold approximately 17.9 million Class A Shares and approximately 7.5 million Class T Shares for approximately $193 million and $79 million respectively, in our Public Offering. On May 5, 2017, we filed with the SEC a Registration Statement on Form S-3, which registered up to an additional $115.6 million in shares under our distribution reinvestment plan (our “DRP Offering”). The DRP Offering may be terminated at any time upon 10 days’ prior written notice to stockholders. As of December 31, 2017, we had sold approximately 222,000 Class A Shares and approximately 72,000 Class T Shares for approximately $2.6 million and $0.8 million, respectively, in our DRP Offering. We intend to invest the net proceeds from our offerings primarily in opportunistic self storage facilities, which may include facilities to be developed, currently under development or in lease-up and self storage facilities in need of expansion, redevelopment or repositioning. As of December 31, 2017 we owned 24 self storage facilities located in ten states (Arizona, California, Colorado, Florida, Illinois, Massachusetts, On April 13, 2017, our board of directors, upon recommendation of our Nominating and Corporate Governance Committee, approved an estimated value per share of our common stock of $11.56 (unaudited) for our Class A Shares and Class T Shares based on the estimated value of our assets less the estimated value of our liabilities, or net asset value, divided by the number of shares outstanding on a fully diluted basis, calculated as of December 31, 2016. As a result of the calculation of our estimated value per share, effective in May 2017, shares sold pursuant to our distribution reinvestment plan are being sold at the estimated value per share of our common stock of $11.56 (unaudited) per share for Class A and Class T Shares. Our operating partnership, SS Growth Operating Partnership, L.P., a Delaware limited partnership (our “Operating Partnership”), was formed on March 13, 2013. During 2013, our Advisor purchased a limited partnership interest in our Operating Partnership totaling $201,000 and on May 31, 2013, we contributed the initial $1,000 capital contribution we received to our Operating Partnership in exchange for the general partner interest. Our Operating Partnership owns, directly or indirectly through one or more special purpose entities, all of the self storage properties that we have acquired and the self storage properties we will acquire in the future. As of December 31, 2017, we owned approximately 99.9% of the common units of limited partnership interests of our Operating Partnership. The remaining approximately 0.1% of the common units are owned by our Advisor. As the sole general partner of our Operating Partnership, we have the exclusive power to manage and conduct the business of our Operating Partnership. We conduct certain activities through our taxable REIT subsidiary, SS Growth TRS, Inc., a Delaware corporation (the “TRS”) which was formed on March 14, 2013, and is a wholly owned subsidiary of our Operating Partnership. Our Property Manager was formed on March 12, 2013 to manage our properties. Our Property Manager derives substantially all of its income from the property management services it performs for us. Our Property Manager may enter into sub-property management agreements with third party management companies and pay part of its management fee to such sub-property manager. From October 1, 2015 through September 30, 2017, our Property Manager contracted with Extra Space Storage, Inc. (“Extra Space”) for Extra Space to serve as the sub-property manager for each of our properties located in the United States pursuant to separate sub-property management agreements for each property. On October 1, 2017, our Property Manager terminated each sub-property management with Extra Space and our Property Manager now manages all of our properties directly. In connection therewith an affiliate of our Property Manager acquired the “SmartStop® Self Storage” brand from Extra Space. We began using the “SmartStop® Self Storage” brand at our United States properties effective October 1, 2017. Please see Note 7 – Related Party Transactions – Property Management Agreement. All properties owned or acquired in Canada will be managed by a subsidiary of our Sponsor and branded using the SmartStop ® Our dealer manager was Select Capital Corporation, a California corporation (our “Dealer Manager”). Our Dealer Manager was responsible for marketing our shares being offered pursuant to our Primary Offering. Our Sponsor owns a 15% non-voting equity interest in our Dealer Manager. Affiliates of our Dealer Manager own a 2.5% non-voting membership interest in our Advisor. As we accepted subscriptions for shares of our common stock, we transferred the net offering proceeds to our Operating Partnership as capital contributions in exchange for additional units of interest in our Operating Partnership. However, we were deemed to have made capital contributions in the amount of gross proceeds received from investors, and our Operating Partnership was deemed to have simultaneously paid the sales commissions and other costs associated with the Public Offering. In addition, our Operating Partnership is structured to make distributions with respect to limited partnership units that are equivalent to the distributions made to holders of common stock. Finally, a limited partner in our Operating Partnership may later exchange his or her limited partnership units in our Operating Partnership for shares of our common stock at any time after one year following the date of issuance of their limited partnership units, subject to certain restrictions outlined in the limited partnership agreement of our Operating Partnership, as amended (the “Operating Partnership Agreement”). Our Advisor is prohibited from exchanging or otherwise transferring its limited partnership units so long as it is acting as our Advisor pursuant to our Advisory Agreement.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) as contained within the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) and the rules and regulations of the SEC. Principles of Consolidation Our financial statements, and the financial statements of our Operating Partnership, including its wholly-owned subsidiaries, are consolidated in the accompanying consolidated financial statements. The portion of these entities not wholly-owned by us is presented as noncontrolling interests. All significant intercompany accounts and transactions have been eliminated in consolidation. Consolidation Considerations Current accounting guidance provides a framework for identifying a variable interest entity (“VIE”) and determining when a company should include the assets, liabilities, noncontrolling interests, and results of activities of a VIE in its consolidated financial statements. In general, a VIE is an entity or other legal structure used to conduct activities or hold assets that either (1) has an insufficient amount of equity to carry out its principal activities without additional subordinated financial support, (2) has a group of equity owners that are unable to make significant decisions about its activities, or (3) has a group of equity owners that do not have the obligation to absorb losses or the right to receive returns generated by its operations. Generally, a VIE should be consolidated if a party with an ownership, contractual, or other financial interest in the VIE (a variable interest holder) has the power to direct the VIE’s most significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could be significant to the VIE. A variable interest holder that consolidates the VIE is called the primary beneficiary. Upon consolidation, the primary beneficiary generally must initially record all of the VIE’s assets, liabilities, and noncontrolling interest at fair value and subsequently account for the VIE as if it were consolidated based on majority voting interest. Our Operating Partnership is deemed to be a VIE and is consolidated by the Company as the primary beneficiary. As of December 31, 2017, we had not entered into any other contracts/interests that would be deemed to be variable interests in a VIE other than one preferred equity investment, which is accounted for under the equity method of accounting. Other than the preferred equity investment, we do not currently have any relationships with unconsolidated entities or financial partnerships. Noncontrolling Interest in Consolidated Entities We account for the noncontrolling interest in our Operating Partnership in accordance with the related accounting guidance. Due to our control through our general partnership interest in our Operating Partnership and the limited rights of the limited partner, our Operating Partnership, including its wholly-owned subsidiaries, are consolidated with the Company and the limited partner interest is reflected as a noncontrolling interest in the accompanying consolidated balance sheets. The noncontrolling interest shall be attributed its share of income and losses, even if that attribution results in a deficit noncontrolling interest balance. Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management will adjust such estimates when facts and circumstances dictate. Actual results could materially differ from those estimates. The most significant estimates made include the allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed at fair value, the determination if certain entities should be consolidated, the evaluation of potential impairment of long-lived assets, and the estimated useful lives of real estate assets and intangibles. Cash and Cash Equivalents We consider all short-term, highly liquid investments that are readily convertible to cash with a maturity of three months or less at the time of purchase to be cash equivalents. We may maintain cash and cash equivalents in financial institutions in excess of insured limits, but believe this risk will be mitigated by only investing in or through major financial institutions. Real Estate Purchase Price Allocation We account for acquisitions in accordance with GAAP which requires that we allocate the purchase price of the property to the tangible and intangible assets acquired and the liabilities assumed based on estimated fair values. This guidance requires us to make significant estimates and assumptions, including fair value estimates, as of the acquisition date. Acquisitions of portfolios of facilities are allocated to the individual facilities based upon 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 facility along with current and projected occupancy and rental rate levels or appraised values, if available. Allocations to the individual assets and liabilities are based upon comparable market sales information for land and estimates of depreciated replacement cost of equipment, building and site improvements. In allocating the purchase price, we determine whether the acquisition includes intangible assets or liabilities. Substantially all of the leases in place at acquired properties are at market rates, as the majority of the leases are month-to-month contracts. We also consider whether in-place, market leases represent an intangible asset. We recorded approximately $1.3 million and approximately $0.4 million in intangible assets to recognize the value of in-place leases related to our acquisitions during the years ended December 31, 2017 and 2016, respectively. We do not expect, nor to date have we recorded, intangible assets for the value of customer relationships because we expect we will not have concentrations of significant customers and the average customer turnover will be fairly frequent. During the years ended December 31, 2017, 2016 and 2015 we expensed approximately $3.1 million, $1.0 million and $1.1 million, respectively, of acquisition-related transaction costs. Should the initial accounting for an acquisition be incomplete by the end of a reporting period that falls within the measurement period, we will report provisional amounts in our financial statements. During the measurement period, we will adjust the provisional amounts recognized at the acquisition date to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date and we will record those adjustments to our consolidated financial statements. We will recognize any measurement period adjustments during the period in which we determine the amount of the adjustment to our consolidated financial statements, potentially including adjustments to interest, depreciation and amortization expense. Evaluation of Possible Impairment of Long-Lived Assets Management monitors events and changes in circumstances that could indicate that the carrying amounts of our long-lived assets may not be recoverable. When indicators of potential impairment are present that indicate that the carrying amounts of the assets may not be recoverable, we will assess the recoverability of the assets by determining whether the carrying value of the long-lived assets will be recovered through the undiscounted future operating cash flows expected from the use of the asset and its eventual disposition. In the event that such expected undiscounted future cash flows do not exceed the carrying value, we will adjust the value of the long-lived assets to the fair value and recognize an impairment loss. For the years ended December 31, 2017, 2016 and 2015, no impairment losses were recognized. Real Estate Held for Sale We generally consider real estate to be “held for sale” when the following criteria are met: (i) management commits to a plan to sell the property, (ii) the property is available for sale immediately, (iii) the property is actively being marketed for sale at a price that is reasonable in relation to its current fair value, (iv) the sale of the property within one year is considered probable and (v) significant changes to the plan to sell are not expected. Real estate that is held for sale is classified as “real estate held for sale” in the accompanying consolidated financial statements for the periods when it was held for sale. Real estate classified as held for sale is no longer depreciated and is reported at the lower of its carrying value or its estimated fair value less estimated costs to sell. Operating results and related gains (losses) on sale of properties that were disposed of or classified as held for sale in the ordinary course of business are included in continuing operations on our consolidated statements of operations, consistent with current accounting guidance. As of December 31, 2017 and December 31, 2016, there was no real estate classified as held for sale. Revenue Recognition Management believes that all of our leases are operating leases. Rental income is recognized in accordance with the terms of the leases, which generally are month-to-month. Revenues from any long-term operating leases are recognized on a straight-line basis over the term of the lease. The excess of rents received over amounts contractually due pursuant to the underlying leases is included in accounts payable and accrued liabilities in our consolidated balance sheets and contractually due but unpaid rent is included in other assets. Allowance for Doubtful Accounts Tenant accounts receivable is reported net of an allowance for doubtful accounts. Management’s estimate of the allowance is based upon a review of the current status of tenant accounts receivable. It is reasonably possible that management’s estimate of the allowance will change in the future. Real Estate Facilities Real estate facilities are recorded based on fair value as of the date of acquisition. We capitalize costs incurred to develop, construct, renovate and improve properties, including interest and property taxes incurred during the construction period. The construction period begins when expenditures for the real estate assets have been made and activities that are necessary to prepare the asset for its intended use are in progress. The construction period ends when the asset is substantially complete and ready for its intended use. Depreciation of Real Property Assets Our management is required to make subjective assessments as to the useful lives of our depreciable assets. We consider the period of future benefit of the asset to determine the appropriate useful lives. Depreciation of our real property assets is charged to expense on a straight-line basis over the estimated useful lives as follows: Description Standard Depreciable Life Land Not Buildings 30-35 years Site Improvements 7-10 years Depreciation of Personal Property Assets Personal property assets consist primarily of furniture, fixtures and equipment and are depreciated on a straight-line basis over the estimated useful lives generally ranging from 3 to 5 years, and are included in other assets on our consolidated balance sheets. Intangible Assets We have allocated a portion of our real estate purchase price to in-place leases. We are amortizing in-place lease intangibles on a straight-line basis over the estimated future benefit period. As of December 31, 2017 and 2016, the gross amounts allocated to in-place lease intangibles were approximately $4.1 million and approximately $2.7 million, respectively, and accumulated amortization of in-place lease intangibles totaled approximately $3.2 million and approximately $2.3 million, respectively. Total estimated amortization expense of intangible assets for the years ending December 31, 2018 and 2019 is approximately $0.8 million and $0.1 million, respectively, and none for the years thereafter. Foreign Currency Translation For non-U.S. functional currency operations, assets and liabilities are translated to U.S. dollars at current exchange rates. Revenues and expenses are translated at the average rates for the period. All related adjustments are recorded in accumulated other comprehensive income (loss) as a separate component of equity. Transactions denominated in a currency other than the functional currency of the related operation are recorded at rates of exchange in effect at the date of the transaction. Gains or losses on foreign currency transactions are recorded in other income (expense). Debt Issuance Costs The net carrying value of costs incurred in connection with obtaining revolving financing are presented in debt issuance costs on our consolidated balance sheets and such amount as of December 31, 2017 and 2016 totaled approximately $0.5 million and approximately $0.3 million, respectively. The net carrying value of costs incurred in connection with obtaining non-revolving financing are presented in our consolidated balance sheets as a deduction from secured debt and such amounts as of December 31, 2017 and 2016 totaled approximately $0.3 million and approximately $0.2 million, respectively. Debt issuance costs are amortized on a straight-line basis over the term of the related loan, which is not materially different than the effective interest method. Organizational and Offering Costs Our Advisor funded organization and offering costs on our behalf. We were required to reimburse our Advisor for such organization and offering costs; provided, however, our Advisor was required to reimburse us within 60 days after the end of the month in which the Primary Offering terminated to the extent we paid or reimbursed organization and offering costs (excluding sales commissions, dealer manager fees and stockholder servicing fees) in excess of 3.5% of the gross offering proceeds from the Primary Offering. Such costs were recognized as a liability when we had a present responsibility to reimburse our Advisor, which is defined in our Advisory Agreement as the date we satisfied the minimum offering requirements of our Private Offering (which occurred on May 23, 2014). If at any point in time we determined that the total organization and offering costs were expected to exceed 3.5% of the gross proceeds anticipated to be received from the Primary Offering, we would have recognized such excess as a capital contribution from our Advisor. Subsequent to the close down of our Primary Offering, we determined that total organization and offering costs did not exceed 3.5% of the gross proceeds received from the Primary Offering. Offering costs are recorded as an offset to additional paid-in capital, and organization costs are recorded as an expense. We pay our Dealer Manager an ongoing stockholder servicing fee that is payable monthly and accrues daily in an amount equal to 1/365th of 1% of the purchase price per share of the Class T Shares sold in the Primary Offering. We will cease paying the stockholder servicing fee with respect to the Class T Shares sold in the Primary Offering at the earlier of (i) the date we list our shares on a national securities exchange, merge or consolidate with or into another entity, or sell or dispose of all or substantially all of our assets, (ii) the date at which the aggregate underwriting compensation from all sources equals 10% of the gross proceeds from the sale of both Class A Shares and Class T Shares in our Primary Offering (i.e., excluding proceeds from sales pursuant to our distribution reinvestment plan), which calculation shall be made by us with the assistance of our Dealer Manager commencing after the termination of the Primary Offering; (iii) the fifth anniversary of the last day of the fiscal quarter in which our Primary Offering (i.e., excluding our distribution reinvestment plan offering) terminates; and (iv) the date that such Class T Share is redeemed or is no longer outstanding. Our Dealer Manager entered into participating dealer agreements with certain other broker-dealers which authorized them to sell our shares. Upon sale of our shares by such broker-dealers, our Dealer Manager re-allowed all of the sales commissions and, subject to certain limitations, the stockholder servicing fees paid in connection with sales made by these broker-dealers. Our Dealer Manager was also permitted to re-allow to these broker-dealers a portion of their dealer manager fee as marketing fees, reimbursement of certain costs and expenses of attending training and education meetings sponsored by our Dealer Manager, payment of attendance fees required for employees of our Dealer Manager or other affiliates to attend retail seminars and public seminars sponsored by these broker-dealers, or to defray other distribution-related expenses. Our Dealer Manager also received reimbursement of bona fide due diligence expenses; however, to the extent the due diligence expenses could not be justified, any excess over actual due diligence expenses would have been considered underwriting compensation subject to a 10% FINRA limitation and, when aggregated with all other non-accountable expenses in connection with our Public Offering, could not exceed 3% of gross offering proceeds from sales in the Public Offering. We record a liability within Due to affiliates for the future estimated stockholder servicing fees at the time of sale of Class T Shares as an offering cost. Redeemable Common Stock We adopted a share redemption program that will enable stockholders to sell their shares to us in limited circumstances. We record amounts that are redeemable under the share redemption program as redeemable common stock in the accompanying consolidated balance sheets since the shares are redeemable at the option of the holder and therefore their redemption is outside our control. The maximum amount redeemable under our share redemption program is limited to the number of shares we can repurchase with the amount of the net proceeds from the sale of shares under the distribution reinvestment plan. However, accounting guidance states that determinable amounts that can become redeemable should be presented as redeemable when such amount is known. Therefore, the net proceeds from the distribution reinvestment plan are considered to be temporary equity and are presented as redeemable common stock in the accompanying consolidated balance sheet. In addition, current accounting guidance requires, among other things, that financial instruments that represent a mandatory obligation of us to repurchase shares be classified as liabilities and reported at settlement value. Our redeemable common shares are contingently redeemable at the option of the holder. When we determine we have a mandatory obligation to repurchase shares under the share redemption program, we reclassify such obligations from temporary equity to a liability based upon their respective settlement values. For the year ended December 31, 2017, we received redemption requests totaling approximately 22,000 shares and approximately $211,000. Such requests were fulfilled in April, July and October 2017 and January 2018. For the year ended December 31, 2016, we received one redemption request for approximately 4,000 shares and approximately $36,000. Such request was fulfilled in January 2017. Accounting for Equity Awards The cost of restricted stock is required to be measured based on the grant date fair value and the cost recognized over the relevant service period. Fair Value Measurements Under GAAP, we are required to measure certain financial instruments at fair value on a recurring basis. In addition, we are required to measure other financial instruments and balances at fair value on a non-recurring basis. Fair value is defined by the accounting standard for fair value measurements and disclosures as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. It also establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels. The following summarizes the three levels of inputs and hierarchy of fair value we use when measuring fair value: • Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access; • Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as interest rates and yield curves that are observable at commonly quoted intervals; and • Level 3 inputs are unobservable inputs for the assets or liabilities that are typically based on an entity’s own assumptions as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the fair value measurement will fall within the lowest level that is significant to the fair value measurement in its entirety. The accounting guidance for fair value measurements and disclosures provides a framework for measuring fair value and establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. In determining fair value, we will utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as consider counterparty credit risk in our assessment of fair value. Considerable judgment will be necessary to interpret Level 2 and 3 inputs in determining fair value of our financial and non-financial assets and liabilities. Accordingly, there can be no assurance that the fair values we will present will be indicative of amounts that may ultimately be realized upon sale or other disposition of these assets. Financial and non-financial assets and liabilities measured at fair value on a non-recurring basis in our consolidated financial statements consist of real estate and related liabilities assumed related to our acquisitions. The fair values of these assets and liabilities were determined as of the acquisition dates using widely accepted valuation techniques, including (i) discounted cash flow analysis, which considers, among other things, leasing assumptions, growth rates, discount rates and terminal capitalization rates, (ii) income capitalization approach, which considers prevailing market capitalization rates, and (iii) comparable sales activity. In general, we consider multiple valuation techniques when measuring fair values. However, in certain circumstances, a single valuation technique may be appropriate. All of the fair values of the assets and liabilities as of the acquisition dates were derived using Level 3 inputs. The carrying amounts of cash and cash equivalents, tenant accounts receivable, other assets, variable-rate secured debt, accounts payable and accrued liabilities, distributions payable and amounts due to affiliates approximate fair value. To comply with GAAP, we incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of derivative contracts for the effect of nonperformance risk, we will consider the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. We had no assets or liabilities that required fair value measurements on a recurring basis at December 31, 2017 and 2016. Income Taxes We made an election to be taxed as a Real Estate Investment Trust (“REIT”), under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”), commencing with our taxable year ended December 31, 2014. To qualify as a REIT, we must continue to meet certain organizational and operational requirements, including a requirement to distribute at least 90% of the REIT’s ordinary taxable income to stockholders (which is computed without regard to the dividends paid deduction or net capital gains and which does not necessarily equal net income as calculated in accordance with GAAP). As a REIT, we generally will not be subject to federal income tax on taxable income that we distribute to our stockholders. If we fail to qualify as a REIT in any taxable year, we will then be subject to federal income taxes on our taxable income at regular corporate rates and will not be permitted to qualify for treatment as a REIT for federal income tax purposes for four years following the year during which qualification is lost unless the IRS grants us relief under certain statutory provisions. Such an event could materially adversely affect our net income and net cash available for distribution to stockholders. However, we believe that we are organized and operate in such a manner as to qualify for treatment as a REIT and intend to operate in the foreseeable future in such a manner that we will remain qualified as a REIT for federal income tax purposes. Even if we continue to qualify for taxation as a REIT, we may be subject to certain state and local taxes on our income and property, and federal income and excise taxes on our undistributed income. We filed elections to treat our TRS as a taxable REIT subsidiary effective January 1, 2014. In general, the TRS performs additional services for our customers and generally engages in any real estate or non-real estate related business. The TRS is subject to corporate federal and state income tax. The TRS follows accounting guidance which requires the use of the asset and liability method. Deferred income taxes represent the tax effect of future differences between the book and tax bases of assets and liabilities. Per Share Data Basic earnings per share attributable to our common stockholders for all periods presented is computed by dividing net income (loss) attributable to our common stockholders by the weighted average number of shares outstanding during the period, excluding unvested restricted stock. Diluted earnings per share is computed by including the dilutive effect of unvested restricted stock, utilizing the treasury stock method. For all periods presented the dilutive effective of unrestricted stock was not included in the diluted weighted average shares as such shares were antidilutive. Recently Issued Accounting Guidance In May 2014, the FASB issued ASU 2014-09 “Revenue from Contracts with Customers” as ASC Topic 606. The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and will supersede most of the existing revenue recognition guidance, including industry-specific guidance. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the new standard, companies will perform a five-step analysis of transactions to determine when and how revenue is recognized. ASU 2014-09 applies to all contracts with customers except those that are within the scope of other topics in the FASB ASC. In July 2015, the FASB voted to defer the effective date by one year to annual reporting periods (including interim periods within those periods) beginning after December 15, 2017 with early adoption permitted. This ASU will be applied using the modified retrospective approach. We have determined that our self storage rental revenues will not be subject to the guidance in ASU 2014-09, as they qualify as lease contracts, which are excluded from its scope. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments–Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” ASU 2016-01 updates guidance related to recognition and measurement of financial assets and financial liabilities. ASU 2016-01 requires all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments in ASU 2016-01 also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, the amendments in ASU 2016-01 eliminate the requirement to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. ASU 2016-01 is effective for fiscal years and interim periods within those years beginning after December 15, 2017, with early adoption permitted. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” ASU 2016-02 amends the guidance on accounting for leases. Under ASU 2016-02, lessees will be required to recognize the following for all leases (with the exception of short term leases) at the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease; and (2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under ASU 2016-02, lessor accounting is largely unchanged. It also includes extensive amendments to the disclosure requirements. ASU 2016-02 is effective for fiscal years and interim periods beginning after December 15, 2018. Early adoption is permitted for financial statements that have not yet been made available for issuance. ASU 2016-02 requires a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. While we continue to evaluate the standard, based upon our assessment to date, we do not anticipate the adoption of this standard will have a material impact on our consolidated financial statements, because substantially all of our lease revenues are derived from month-to-month leases. In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” ASU 2016-15 addresses eight classification issues related to the statement of cash flows. The guidance will become effective for periods beginning after December 15, 2017, with early adoption permitted. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In November 2016, the FASB issued ASU No. 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 will require companies to include restricted cash and restricted cash equivalents with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 will require a disclosure of a reconciliation between the statement of financial position and the statement of cash flows when the statement of financial position includes more than one line item for cash, cash equivalents, restricted cash, and restricted cash equivalents. Entities with material restricted cash and restricted cash equivalent balances will be required to disclose the nature of the

Real Estate Facilities

Real Estate Facilities	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
Real Estate Facilities	Note 3. Real Estate Facilities The following summarizes the activity in real estate facilities during the years ended December 31, 2017 and 2016: Real estate facilities Balance at December 31, 2015 $ 60,329,399 Facility acquisitions 25,720,271 Finalized purchase price allocations related to fourth quarter 2015 acquisitions 563,811 Insured property damage (1) (510,872 ) Impact of foreign exchange rate changes (33,587 ) Improvements and additions 1,512,582 Balance at December 31, 2016 87,581,604 Facility acquisitions 87,311,000 Impact of foreign exchange rate changes 270,585 Asset disposals (133,985 ) Improvements and additions 1,331,661 Balance at December 31, 2017 $ 176,360,865 Accumulated depreciation Balance at December 31, 2015 $ (1,157,113 ) Depreciation expense (2,143,410 ) Balance at December 31, 2016 (3,300,523 ) Asset disposals 133,985 Depreciation expense (3,886,241 ) Balance at December 31, 2017 $ (7,052,779 ) (1) Insured property damage was incurred at our San Antonio I property during the year ended December 31, 2016. An insurance claim was submitted that covered the estimated repair costs with the exception of our $25,000 insurance deductible. In accordance with GAAP we recorded the insurance proceeds in other assets. The property remained open and neither the damage, nor the repair process impacted our operations. The following tables summarize the purchase price allocations for our acquisitions during the years ended December 31, 2017 and 2016: Property Acquisition Date Real Estate Assets Intangibles Total(1) Debt Issued 2017 Revenue(2) 2017 Property Operating Income (Loss)(3) Elk Grove – IL (4) 01/13/17 $ 10,042,000 $ 58,000 $ 10,100,000 $ — $ 400,996 $ (304,960 ) (9) Garden Grove – CA (5) 03/16/17 18,400,000 — 18,400,000 — 320,280 (77,192 ) (9) Asheville II – NC 05/11/17 4,693,406 250,000 4,943,406 — 312,246 173,997 Asheville III – NC 05/11/17 5,026,594 280,000 5,306,594 — 320,099 178,946 Sarasota – FL (6) 05/23/17 6,700,000 — 6,700,000 — 85,861 (73,168 ) (9) Mount Pleasant – SC (7) 07/17/17 5,675,000 25,000 5,700,000 — 89,353 (38,119 ) (9) Nantucket – MA 08/22/17 36,774,000 726,000 37,500,000 — 1,005,308 832,373 2017 Total $ 87,311,000 $ 1,339,000 $ 88,650,000 $ — $ 2,534,143 $ 691,877 Property Acquisition Date Real Estate Assets Intangibles Total(1) Debt Issued 2016 Revenue(2) 2016 Property Operating Income(3) San Antonio II – TX 01/06/16 $ 11,659,852 $ 443,773 $ 12,103,625 $ 7,950,000 $ 995,515 $ 334,383 Stoney Creek – TOR – CAN (8) 02/11/16 1,516,032 — 1,516,032 — — — Torbarrie – TOR – CAN (8) 05/17/16 2,321,580 — 2,321,580 — — — Baseline – AZ (10) 05/26/16 7,222,807 — 7,222,807 5,053,000 167,788 12,444 Asheville I – NC (8) 12/30/16 3,000,000 — 3,000,000 — — — 2016 Total $ 25,720,271 $ 443,773 $ 26,164,044 $ 13,003,000 $ 1,163,303 $ 346,827 (1) The allocations noted above are based on a determination of the fair value of the total consideration provided and represent cash paid for the transaction. (2) The operating results of the facilities acquired above have been included in our consolidated statements of operations since their respective acquisition date. (3) Property operating income (loss) excludes corporate general and administrative expenses, asset management fees, interest expense, depreciation, amortization, acquisition expenses and costs incurred in connection with the property management changes. (4) We acquired the Elk Grove Property, a lease-up property, with initial occupancy of approximately 32% (unaudited). The property’s occupancy has increased to approximately 60% (unaudited) as of December 31, 2017. (5) We acquired the Garden Grove Property, a lease-up property, with initial occupancy of approximately 9% (unaudited). The property’s occupancy has increased to approximately 57% (unaudited) as of December 31, 2017. (6) We acquired the Sarasota Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 53% (unaudited) as of December 31, 2017. (7) We acquired the Mount Pleasant Property, a lease-up property, with initial occupancy of 17% (unaudited). The property’s occupancy has increased to approximately 33% (unaudited) as of December 31, 2017. (8) Stoney Creek, Torbarrie and Asheville are self storage properties that are under construction. (9) These are all lease-up properties and we believe that in the future, these properties will provide additional operating income and cash flows as they stabilize. However, given the lease-up nature of such properties, they initially have a negative impact on our results of operations until occupancy and rates stabilize. (10) We acquired the Baseline Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 88% (unaudited) as of December 31, 2017. During 2016 we completed the purchase price allocations for San Antonio II, Stoney Creek, Torbarrie, Baseline and Asheville I. As a result of finalizing purchase price allocations we recognized during the fourth quarter measurement period adjustments, which had the aggregate impact of increasing our allocation to land by approximately $2.8 million, with reductions to buildings, site improvements and intangible assets of approximately $0.8 million, $1.5 million and $0.5 million, respectively. The impact of such reclassifications was that we recognized measurement period adjustments during the fourth quarter to our consolidated statement of operations, which had the aggregate impact of a decrease to depreciation expense of approximately $0.1 million and a decrease to intangible amortization expense of approximately $0.2 million for the year. During 2017 we completed the purchase price allocations for all acquisitions acquired in 2017. As a result of finalizing purchase price allocations we recognized during the fourth quarter measurement period adjustments, which had the aggregate impact of increasing our allocation to land and intangible assets by approximately $20,000 and $58,000, respectively, with reductions to buildings and site improvements of approximately $75,000 and $3,000, respectively. The impact of such reclassifications was that we recognized measurement period adjustments during the fourth quarter to our consolidated statement of operations, which had the aggregate impact of a decrease to depreciation expense of approximately $1,300 and an increase to intangible amortization expense of approximately $53,000 for the year. We incurred acquisition fees to our Advisor related to the above properties of approximately $1.6 million and $0.5 million for the years ended December 31, 2017 and 2016, respectively.

Pro Forma Financial Information

Pro Forma Financial Information	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Pro Forma Financial Information	Note 4. Pro Forma Financial Information (Unaudited) The table set forth below summarizes on an unaudited pro forma basis the combined results of operations of the Company for the years ended December 31, 2017 and 2016, generally as if the Company’s acquisitions that occurred during 2017 and 2016 had occurred as of January 1, 2016 and 2015, respectively. However, for acquisitions of lease-up properties that were not operational as of these dates, the pro forma information includes these acquisitions as of the date that formal operations began. This pro forma information does not purport to represent what the actual consolidated results of operations of the Company would have been for the periods indicated, nor does it purport to predict the results of operations for future periods. Year Ended December 31, 2017 Year Ended December 31, 2016 Pro forma revenue $ 16,045,243 $ 13,076,995 Pro forma operating expenses (16,974,268 ) (14,384,811 ) Pro forma net loss attributable to common shareholders (1,073,269 ) (4,972,326 ) The pro forma financial information for the years ended December 31, 2017 and 2016 were adjusted to exclude approximately $2.3 million and $0.7 million, respectively, for acquisition related expenses.

Secured Debt

Secured Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Secured Debt	Note 5. Secured Debt KeyBank Facility On July 31, 2014, we, through our Operating Partnership and certain property-owning special purpose entities wholly-owned by our Operating Partnership (collectively with the Operating Partnership, the “Borrower”), obtained a senior secured revolving loan (the “KeyBank Facility”) from KeyBank National Association (“KeyBank”) pursuant to a credit agreement for the purpose of funding real property acquisitions. The KeyBank Facility had an initial maturity date of July 31, 2017, but was extended through December 31, 2017. The KeyBank Facility was full recourse, jointly and severally, to us and the Borrower and was secured by cross-collateralized first mortgage liens on the 13 Mortgaged Properties (as defined in the Credit Agreement). The KeyBank Facility accrued interest at the Borrower’s option of either (i) LIBOR plus 325 basis points, or (ii) Base Rate plus 225 basis points. Base Rate was the greater of (i) Agent Prime or (ii) the Fed Funds rate plus 0.50%. Additionally, an unused line fee of 25 basis points was assessed on the average daily unused amount of the maximum potential amount we may borrow. The KeyBank Facility contained a number of other customary terms and covenants. On December 20, 2017, we entered into a new credit agreement (the “Amended Credit Agreement”) with KeyBank and obtained a new senior secured revolving loan (the “Amended KeyBank Facility”) with has a term of one year, maturing on December 20, 2018. The maximum potential amount we may borrow under the Amended KeyBank Facility is $50 million. Payments due pursuant to the Amended KeyBank Facility are interest-only for the one year term. The Amended KeyBank Facility bears interest at the Borrower’s option of either (i) LIBOR plus 225 basis points, or (ii) Base Rate plus 125 basis points. Base Rate is the greater of (i) Agent Prime or (ii) the Fed Funds rate plus 0.50%. Additionally, an unused line fee of 20 or 25 basis points is assessed on the average daily unused amount of the maximum potential amount we may borrow if the unused maximum potential amount is greater than or equal to 50% or less than 50%, respectively. As of December 31, 2017, the interest rate was approximately 3.61% which was based on LIBOR plus 225 basis points. The Amended KeyBank Facility is full recourse, jointly and severally, to us and the Borrower and is secured by cross-collateralized first mortgage liens on the 14 Mortgaged Properties (as defined in the Amended Credit Agreement). The Amended KeyBank Facility may be prepaid or terminated at any time without penalty, provided, however, that KeyBank shall be indemnified for any breakage costs associated with any LIBOR borrowings. Pursuant to that certain guaranty dated December 20, 2017, in favor of KeyBank, we serve as a guarantor of all obligations due under the KeyBank Facility. Under certain conditions, we may cause the release of one or more of the properties serving as collateral for the Amended KeyBank Facility, subject to a requirement that no default or event of default is then outstanding or would reasonably occur as a result of such release, including compliance with the Pool Debt Yield Ratio (as defined in the Amended Credit Agreement). The Amended KeyBank Facility contains a number of other customary terms and covenants, including the following (capitalized terms are as defined in the Amended Credit Agreement): the aggregate borrowing base availability under the Amended KeyBank Facility is limited to the lesser of: (1) 45% of the Pool Value of the properties in the collateral pool, or (2) an amount that would provide a minimum Pool Debt Yield Ratio of no less than 12%; and we must meet the following financial tests, calculated as of the close of each fiscal quarter: (1) a Total Leverage Ratio of no more than 40%; (2) a Tangible Net Worth not less than (a) the Tangible Net Worth at closing, plus (b) 85% of Net Equity; (3) a Fixed Charge Ratio of no less than 1.5 to 1.0; (4) a Minimum Liquidity amount of at least $3 million; (5) any time when either (i) the Total Leverage Ratio is in excess of 25%, or (ii) the Fixed Charge Ratio is less than 3.5 to 1.0, a ratio of (a) the Indebtedness that bears interest at a varying rate of interest or that does not have the interest rate fixed, capped or swapped pursuant to a Hedging Agreement to (b) the sum of the Indebtedness, not in excess of 30%; and (6) a Loan to Value Ratio of not greater than forty-five percent (45%). As of December 31, 2017, there was no outstanding principal balance under the Amended KeyBank Facility. The Baseline Loan On May 26, 2016, the special-purpose entity (a subsidiary of our Operating Partnership) which acquired and owns our property in Phoenix, Arizona (the “Baseline Property”) entered into a loan agreement for a loan in the amount of approximately $5.1 million (the “Baseline Loan”) with TCF National Bank (“TCF”) as the lender. The Baseline Loan had a maturity date of May 26, 2019, unless extended for up to an additional three years. Payments due under the Baseline Loan were interest-only and due on the first day of each month. The Baseline Loan had a variable interest rate, which adjusted monthly to be equal to 2.75% in excess of the LIBOR Rate (as defined in the Baseline Loan agreement), subject to a minimum rate of 3.25% per annum. As of December 31, 2017, the interest rate was approximately 4.10%, which was based on LIBOR plus 275 basis points. The Baseline Loan was secured by a first lien deed of trust on the Baseline Property. We could prepay the Baseline Loan at any time, without penalty, in whole or in part. Pursuant to that certain guaranty, dated May 26, 2016, in favor of TCF, we provided a guaranty of the Baseline Loan. The Baseline Loan was paid in full in January 2018. Torbarrie Loan In connection with the redevelopment of one of our properties in Toronto, Canada (the “Torbarrie Property”), on November 3, 2016, we, through a subsidiary of our Operating Partnership which acquired and owns the Torbarrie Property, entered into a construction loan agreement (the “Torbarrie Loan”) with First National Financial LP (“First National”) which, as amended, allows for borrowings up to approximately $10.3 million CAD. The Torbarrie Loan has a maturity date of September 1, 2021. Payments due under the Torbarrie Loan are initially interest-only and due in arrears on the first day of each month. The Torbarrie Loan will require principal amortization upon achieving a debt service coverage ratio of 1.10 (as defined in the loan agreement for the Torbarrie Loan), at which time principal will be due and payable based on a 25 year amortization period. The Torbarrie Loan bears interest at a variable interest rate of 1.95% in excess of the variable Royal Bank of Canada Prime Rate (as defined in the loan agreement for the Torbarrie Loan), which was approximately 3.2% as of December 31, 2017 (in no event will the interest rate fall below 4.65% per annum). The Torbarrie Loan is secured by a first lien deed of trust on the Torbarrie Property and all improvements thereto, and is cross-collateralized to the Stoney Creek Property. The Torbarrie Loan may be prepaid at any time, without penalty, in whole but not in part. We are the guarantor under the Torbarrie Loan and the loan agreement for the Torbarrie Loan contains a number of other customary terms and covenants. As of December 31, 2017, no amounts were drawn on the Torbarrie Loan. The Stoney Creek Loan On May 3, 2017, a subsidiary of our Operating Partnership which owns our property in the Stoney Creek area of Toronto, Canada (the “Stoney Creek Property”) entered into a construction loan agreement (the “Stoney Creek Loan”) with First National which, as amended, allows for borrowings up to approximately $7.8 million CAD. The Stoney Creek Loan has a maturity date of October 1, 2021. Payments due under the Stoney Creek Loan are initially interest-only and due in arrears on the first day of each month. The Stoney Creek Loan will require principal amortization upon achieving a debt service coverage ratio of 1.10 (as defined in the Stoney Creek loan agreement), at which time principal will be due and payable based on a 25 year amortization period. The Stoney Creek Loan will bear interest at a variable interest rate of 1.95% in excess of the variable Royal Bank of Canada Prime Rate (as defined in the Stoney Creek loan agreement), which was approximately 3.2% as of December 31, 2017 (in no event will the interest rate fall below 4.65% per annum). The Stoney Creek Loan is secured by a first lien deed of trust on the Stoney Creek Property and is cross-collateralized to the Torbarrie Property. The Stoney Creek Loan may be prepaid at any time, without penalty, in whole but not in part. We are the guarantor under the Stoney Creek Loan and the loan agreement for the Stoney Creek Loan contains a number of other customary terms and covenants. As of December 31, 2017, approximately $0.8 million USD was drawn on the Stoney Creek Loan. Future Principal Requirements The following table presents the future principal payment requirements on outstanding secured debt as of December 31, 2017: 2018 $ — 2019 5,053,000 2020 — 2021 796,462 2022 — 2023 and thereafter — Total payments $ 5,849,462 Non-revolving debt issuance costs, net (254,683 ) Total $ 5,594,779

Preferred Equity in the Operati

Preferred Equity in the Operating Partnership	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Preferred Equity in the Operating Partnership	Note 6. Preferred Equity in the Operating Partnership Issuance of Preferred Units by our Operating Partnership On July 31, 2014, we and our Operating Partnership entered into a Series A Cumulative Redeemable Preferred Unit Purchase Agreement (the “Unit Purchase Agreement”) with SSTI Preferred Investor, LLC (the “Preferred Investor”). Pursuant to the Unit Purchase Agreement, the Preferred Investor agreed to provide up to $18.1 million through a preferred equity investment in our Operating Partnership (the “Investment”), to be used solely for investments in self storage properties, as described in the underlying documents, in exchange for up to 724,000 Series A Cumulative Redeemable Preferred Units (the “Preferred Units”), each having a liquidation preference of $25.00 per Preferred Unit (the “Liquidation Amount”), plus all accrued and unpaid distributions. During 2014 and 2015, in a number of transactions, the Preferred Investor invested a total of approximately $17.5 million in our Operating Partnership and was issued approximately 700,000 Preferred Units. In September 2015, we redeemed $1.5 million of the Liquidation Amount of the Preferred Units. Such Preferred Units were owned by Extra Space subsequent to the Merger. During the year ended December 31, 2016, we redeemed the remaining approximately $16 million in Liquidation Amount of the Preferred Units outstanding and approximately $1.5 million in Deferred Distributions owed thereon. No further Preferred Units are outstanding and no further Deferred Distributions are owed, such that we no longer have any remaining obligations related to the Preferred Units. In connection with entering into the Unit Purchase Agreement, we and our Operating Partnership entered into a Second Amended and Restated Limited Partnership Agreement of the Operating Partnership (the “Second Amended and Restated Limited Partnership Agreement”), and Amended and Restated Amendment No. 1 to the Second Amended and Restated Limited Partnership Agreement (the “First Amendment”). The Second Amended and Restated Limited Partnership Agreement authorized the issuance of additional classes of units of limited partnership interest in the Operating Partnership, established a new series of preferred units of limited partnership interest in the Operating Partnership and set forth other necessary corresponding changes. All other terms of the Second Amended and Restated Limited Partnership Agreement remained substantially the same as the original Limited Partnership Agreement. The First Amendment sets forth key terms of the Preferred Units, some of which are discussed below. The holder of Preferred Units was entitled to receive current distributions (the “Current Distributions”) at a rate of one-month LIBOR plus 6.5% per annum on the Liquidation Amount, payable monthly and calculated on an actual/360 basis. In addition to the Current Distributions, our Operating Partnership had the obligation to elect either to (A) pay the holder of the Preferred Units additional distributions monthly in an amount that would accrue at the rate of: (i) 4.35% until January 31, 2017; and (ii) thereafter, 6.35% or (B) defer the additional distributions in an amount that would accrue monthly at the rate of (i) for the period until January 31, 2017, LIBOR plus 10.85% and (ii) thereafter, LIBOR plus 12.85% (the “Deferred Distributions”).

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Note 7. Related Party Transactions Fees to Affiliates Our Advisory Agreement with our Advisor and dealer manager agreement (“Dealer Manager Agreement”) with our Dealer Manager entitle our Advisor and our Dealer Manager to specified fees upon the provision of certain services with regard to the Public Offering and investment of funds in real estate properties, among other services, as well as reimbursement for organizational and offering costs incurred by our Advisor on our behalf and reimbursement of certain costs and expenses incurred by our Advisor in providing services to us. Organization and Offering Costs Organization and offering costs incurred in connection with the Primary Offering consisted of all expenses (other than sales commissions, dealer manager fees and stockholder servicing fees) to be paid by us in connection with the Primary Offering, including our legal, accounting, printing, mailing and filing fees, charges of our escrow holder and other accountable organization and offering expenses, including, but not limited to, (i) amounts to reimburse our Advisor for all marketing related costs and expenses such as salaries and direct expenses of employees of our Advisor and its affiliates in connection with registering and marketing our shares; (ii) technology costs associated with the Primary Offering; (iii) our costs of conducting our training and education meetings; (iv) our costs of attending retail seminars conducted by participating broker-dealers; and (v) payment or reimbursement of bona fide due diligence expenses. Pursuant to the Advisory Agreement, our Advisor was obligated to reimburse us within 60 days after the end of the month which the Primary Offering terminates to the extent we paid or reimbursed organization and offering costs (excluding sales commissions, dealer manager fees and stockholder servicing fees) in excess of 3.5% of the gross offering proceeds from the Primary Offering. However, subsequent to the close down of our Primary Offering, we determined that total organization and offering costs did not exceed 3.5% of the gross proceeds received from the Primary Offering, and thus there was no reimbursement. Advisory Agreement We do not have any employees. Our Advisor is primarily responsible for managing our business affairs and carrying out the directives of our board of directors. Our Advisor receives various fees and expenses under the terms of our Advisory Agreement. As discussed above, we were required under our Advisory Agreement to reimburse our Advisor for organization and offering costs. The Advisory Agreement also requires our Advisor to reimburse us to the extent that offering expenses, including sales commissions, dealer manager fees, stockholder servicing fees and organization and offering expenses, are in excess of 15% of gross proceeds from the Public Offering. Subsequent to the close down of our Primary Offering, we determined offering expenses were not in excess of 15% of gross proceeds from the Offering. Pursuant to the Advisory Agreement, our Advisor receives acquisition fees equal to 1.75% of the contract purchase price of each property we acquire plus reimbursement of any acquisition expenses incurred by our Advisor. Our Advisor also receives a monthly asset management fee equal to 0.04167%, which is one-twelfth of 0.5%, of our average invested assets, as defined in the Advisory Agreement. We also pay our Advisor a financing fee of up to 0.5% of the borrowed amount of a loan for arranging for financing in connection with the acquisition, development or repositioning of our properties. Our Advisor may reallow a portion of the financing fee to a third party in the event such party assists us in arranging such financing. Under our Advisory Agreement, our Advisor receives disposition fees in an amount equal to the lesser of (i) one-half of the competitive real estate commission or (ii) 1% of the contract sale price for each property we sell, as long as our Advisor provides substantial assistance in connection with the sale. As provided under the Advisory Agreement, the total real estate commissions paid (including the disposition fee paid to our Advisor) may not exceed the lesser of a competitive real estate commission or an amount equal to 6% of the contract sale price of the property. We also may pay our Advisor or its affiliate a market-based development fee some or all of which may be reallowed to a third party developer. The development fee is paid in connection with properties that we anticipate developing or expanding within 12 months of the acquisition of such properties. A development fee to a third party developer may take the form of an up-front fee and participation in a back-end performance fee. Our Advisor is also entitled to various subordinated distributions under the Second Amended and Restated Limited Partnership Agreement if we (1) list our shares of common stock on a national exchange, (2) terminate our Advisory Agreement (other than a voluntary termination), (3) liquidate our portfolio, or (4) merge with another entity or enter into an Extraordinary Transaction, as defined in the Second Amended and Restated Limited Partnership Agreement. Our Advisory Agreement provides for reimbursement of our Advisor’s direct and indirect costs of providing administrative and management services to us. Pursuant to the Advisory Agreement, our Advisor is obligated to pay or reimburse us the amount by which our aggregate annual operating expenses, as defined, exceed the greater of 2% of our average invested assets or 25% of our net income, as defined, unless a majority of our independent directors determine that such excess expenses were justified based on unusual and non-recurring factors. For any fiscal quarter for which total operating expenses for the 12 months then ended exceed the limitation, we will disclose this fact in our next quarterly report or within 60 days of the end of that quarter and send a written disclosure of this fact to our stockholders. In each case the disclosure will include an explanation of the factors that the independent directors considered in arriving at the conclusion that the excess expenses were justified. For the year ended December 31, 2017, our aggregate annual operating expenses, as defined, did not exceed the thresholds described above. Dealer Manager Agreement In connection with our Primary Offering, our Dealer Manager received a sales commission of up to 7.0% of gross proceeds from sales of Class A Shares and up to 2.0% of gross proceeds from the sales of Class T Shares in the Primary Offering and a dealer manager fee up to 3.0% of gross proceeds from sales of both Class A Shares and Class T Shares in the Primary Offering under the terms of the Dealer Manager Agreement. In addition, our Dealer Manager receives an ongoing stockholder servicing fee that is payable monthly and accrues daily in an amount equal to 1/365th of 1% of the purchase price per share of the Class T Shares sold in the Primary Offering. We will cease paying the stockholder servicing fee with respect to the Class T Shares sold in the Primary Offering at the earlier of (i) the date we list our shares on a national securities exchange, merge or consolidate with or into another entity, or sell or dispose of all or substantially all of our assets, (ii) the date at which the aggregate underwriting compensation from all sources equals 10% of the gross proceeds from the sale of both Class A Shares and Class T Shares in our Primary Offering (i.e., excluding proceeds from sales pursuant to our distribution reinvestment plan), which calculation shall be made by us with the assistance of our Dealer Manager commencing after the termination of the Primary Offering; (iii) the fifth anniversary of the last day of the fiscal quarter in which our Primary Offering (i.e., excluding our distribution reinvestment plan offering) terminates; and (iv) the date that such Class T Share is redeemed or is no longer outstanding. Our Dealer Manager entered into participating dealer agreements with certain other broker-dealers which authorized them to sell our shares. Upon sale of our shares by such broker-dealers, our Dealer Manager re-allowed all of the sales commissions and, subject to certain limitations, the stockholder servicing fees paid in connection with sales made by these broker-dealers. Our Dealer Manager was also permitted to re-allow to these broker-dealers a portion of their dealer manager fee as marketing fees, reimbursement of certain costs and expenses of attending training and education meetings sponsored by our Dealer Manager, payment of attendance fees required for employees of our Dealer Manager or other affiliates to attend retail seminars and public seminars sponsored by these broker-dealers, or to defray other distribution-related expenses. Our Dealer Manager also received reimbursement of bona fide due diligence expenses; however, to the extent these due diligence expenses could not be justified, any excess over actual due diligence expenses would have been considered underwriting compensation subject to a 10% FINRA limitation and, when aggregated with all other non-accountable expenses in connection with our Public Offering, could not exceed 3% of gross offering proceeds from sales in the Public Offering . Affiliated Dealer Manager Our Sponsor owns a 15% non-voting equity interest in our Dealer Manager. Affiliates of our Dealer Manager own a 2.5% non-voting membership interest in our Advisor. Property Management Agreement Since inception, our Property Manager has served as the property manager for each of our properties pursuant to separate property management agreements. From October 1, 2015 through September 30, 2017, our Property Manager contracted with Extra Space for Extra Space to serve as the sub-property manager for each of our properties located in the United States pursuant to separate sub-property management agreements for each property. As of October 1, 2017, our Property Manager terminated each sub-property management agreement, and our Property Manager now manages all of our properties directly. In connection with these terminations, each property management agreement that was subject to a sub-property management agreement with Extra Space was amended and, where applicable, we paid Extra Space a termination fee, as described below. Prior Arrangement Under the property management agreements in effect from October 1, 2015 through September 30, 2017 for our properties located in the United States, our Property Manager received a monthly management fee for each property equal to the greater of $2,500 or 6% of the gross revenues, plus reimbursement of our Property Manager’s costs of managing the properties. In addition, Extra Space agreed to pay up to $25,000 per property toward the signage and set-up costs associated with converting such property to the Extra Space brand (the “Set-Up Amount”). The property management agreements had a three year term and automatically renewed for successive one year periods thereafter, unless we or our Property Manager provided prior written notice at least 90 days prior to the expiration of the term. In general, if we terminated a property management agreement without cause during the initial three year term, we would have been required to pay our Property Manager a termination fee equal to the Set-Up Amount, reduced by 1/36th of the Set-Up Amount for every full month of the term that had elapsed. After the end of the initial three year term, we could have terminated a property management agreement on 30 days prior written notice without payment of a termination fee. Our Property Manager could have terminated a property management agreement on 60 days prior written notice to us. The sub-property management agreements between our Property Manager and Extra Space were substantially the same as the foregoing property management agreements. Under the sub-property management agreements, our Property Manager paid Extra Space a monthly management fee for each property equal to the greater of $2,500 or 6% of the gross revenues, plus reimbursement of Extra Space’s costs of managing the properties; provided, however that no management fee was due and payable to Extra Space for the months of January and July each year during the term. Extra Space had the exclusive right to offer tenant insurance to the tenants and was entitled to all of the benefits of such tenant insurance. The sub-property management agreements also had a three year term and automatically renewed for successive one year periods thereafter, unless our Property Manager or Extra Space provided prior written notice at least 90 days prior to the expiration of the term. In general, if our Property Manager terminated a sub-property management agreement without cause during the initial three year term, it would have been required to pay Extra Space a termination fee equal to the Set-Up Amount, reduced by 1/36th of the Set-Up Amount for every full month of the term that had elapsed. After the end of the initial three year term, our Property Manager could have terminated a sub-property management agreement on 30 days prior written notice without payment of a termination fee. Extra Space could have terminated a sub-property management agreement on 60 days prior written notice to our Property Manager. Termination of Sub-property Manager As of October 1, 2017, our Property Manager terminated each sub-property management agreement with Extra Space, and we amended each of our corresponding property management agreements as described below. To the extent a termination fee would have been owed by any of our property-owning subsidiaries had its corresponding property management agreement with our Property Manager been terminated, each such property-owning subsidiary agreed to pay the termination fee owed by our Property Manager in accordance with its termination of the sub-property management agreements. The aggregate costs incurred in connection with the property management changes were approximately $0.2 million. This amount was included in property operating expenses – affiliates in the accompanying consolidated statements of operations for the year ended December 31, 2017. Property Management Subsequent to September 30, 2017 In connection with the termination of each sub-property management agreement, each corresponding property management agreement was amended effective as of October 1, 2017. Pursuant to the amended property management agreements, our Property Manager receives: (i) a monthly management fee for each property equal to the greater of $3,000 or 6% of the gross revenues from the properties plus reimbursement of the Property Manager’s costs of managing the properties and (ii) a construction management fee equal to 5% of the cost of construction or capital improvement work in excess of $10,000. In addition, we have agreed with our Property Manager or an affiliate to share equally in the net revenue attributable to the sale of tenant insurance at our properties. The property management agreements have a three year term and automatically renew for successive three year periods thereafter, unless we or our Property Manager provide prior written notice at least 90 days prior to the expiration of the term. After the end of the initial three year term, either party may terminate a property management agreement generally upon 60 days prior written notice. With respect to each new property we acquire for which we enter into a property management agreement with our Property Manager we will also pay our Property Manager a one-time start-up fee in the amount of $3,750. In connection with the change in our property management operations, each of our stores in the United States were rebranded under the “SmartStop® Self Storage” brand. Pursuant to the terms of the agreements described above, the following table summarizes related party costs incurred and paid by us for the years ended December 31, 2016 and 2017, as well as any related amounts payable as of December 31, 2016 and 2017: Year Ended December 31, 2016 Year Ended December 31, 2017 Incurred Paid Payable Incurred Paid Payable Expensed Operating expenses (including organizational costs) $ 545,696 $ 561,480 $ 9,915 $ 770,835 $ 723,044 $ 57,706 Asset management fees 417,217 409,967 7,250 736,757 728,382 15,625 Property management fees (1) 565,519 565,519 — 1,018,875 1,018,875 — Acquisition costs 753,090 863,741 6,424 2,023,134 1,993,908 35,650 Debt issuance costs 65,015 167,265 — — — — Capitalized Debt issuance costs — — — 3,983 3,983 — Acquisition costs — — — 150,000 150,000 — Additional Paid-in Capital Selling commissions 5,348,277 5,348,277 — 9,205,704 9,205,704 — Dealer Manager fees 1,474,763 1,380,898 99,026 3,057,148 3,156,174 — Stockholder servicing fees (2) 873,133 32,213 840,920 3,063,039 606,852 3,297,107 Offering costs 431,718 434,530 — 166,190 166,190 — Total $ 10,474,428 $ 9,763,890 $ 963,535 $ 20,195,665 $ 17,753,112 $ 3,406,088 (1) During the years ended December 31, 2016 and 2017, property management fees include approximately $475,000 and approximately $926,000, respectively, of fees paid to the sub-property manager of our properties. (2) The Company pays our Dealer Manager an ongoing stockholder servicing fee that is payable monthly and accrues daily in an amount equal to 1/365th of 1% of the purchase price per share of the Class T Shares sold in the Primary Offering. Extra Space Self Storage In connection with the merger of SmartStop Self Storage, Inc. into Extra Space, certain of our executive officers, including H. Michael Schwartz, Paula Mathews, Michael McClure and James Berg, received units of limited partnership interest in Extra Space Storage LP, the operating partnership for Extra Space, in exchange for units of limited partnership of SmartStop Self Storage Operating Partnership, L.P., the operating partnership for SmartStop, owned by such executives. Tenant Insurance We offer a tenant insurance plan to customers at our properties pursuant to which, as of October 1, 2017, we receive 50% of the net revenues generated from such tenant insurance and our Property Manager or an affiliate receives the other 50% of such net revenues. Storage Auction Program In March of 2017, our Sponsor acquired a minority interest in a company (the “Auction Company”) that serves as a web portal for self storage companies to post their auctions for the contents of abandoned storage units online instead of using live auctions conducted at the self storage facilities. The Auction Company is expected to receive a service fee for such services. Through December 31, 2017, neither our Property Manager nor our sub-property manager utilized the Auction Company at our properties. Our Property Manager may in the future utilize the Auction Company, and we would be responsible for paying any fees related to our properties. Our properties would receive the proceeds from such online auctions.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 8. Commitments and Contingencies Distribution Reinvestment Plan We have adopted an amended and restated distribution reinvestment plan that allows both our Class A and Class T stockholders to have distributions otherwise distributable to them invested in additional shares of our Class A and Class T Shares, respectively. The purchase price per share pursuant to our distribution reinvestment plan is equivalent to the estimated value per share approved by our board of directors and in effect on the date of purchase of shares under the plan. In conjunction with the board of directors’ declaration of a new estimated value per share of our common stock on April 13, 2017, beginning in May 2017, shares sold pursuant to our distribution reinvestment plan are sold at the new estimated value per share of $11.56 (unaudited) per Class A Share and Class T Share. On May 5, 2017, we filed with the SEC a Registration Statement on Form S-3, which registered up to an additional $115.6 million in shares under our distribution reinvestment plan (our “DRP Offering”). We may amend or terminate the amended and restated distribution reinvestment plan for any reason at any time upon 10 days’ prior written notice to stockholders. No sales commissions, dealer manager fee, or stockholder servicing fee will be paid on shares sold through the amended and restated distribution reinvestment plan. As of December 31, 2017, we had sold approximately 2.6 million Class A Shares and approximately 0.8 million Class T Shares in our DRP Offering. Share Redemption Program We adopted a share redemption program that enables stockholders to sell their shares to us in limited circumstances. As long as our common stock is not listed on a national securities exchange or over-the-counter market, our stockholders who have held their stock for at least one year may be able to have all or any portion of their shares of stock redeemed by us. We may redeem the shares of stock presented for redemption for cash to the extent that we have sufficient funds available to fund such redemption. Our board of directors may amend, suspend or terminate the share redemption program with 30 days’ notice to our stockholders. We may provide this notice by including such information in a Current Report on Form 8-K or in our annual or quarterly reports, all publicly filed with the SEC, or by a separate mailing to our stockholders. The complete terms of our share redemption program are described in our prospectus. The amount that we may pay to redeem stock for redemptions is the redemption price set forth in the following table which is based upon the number of years the stock is held: Number Years Held Redemption Price Less than 1 No Redemption Allowed 1 or more but less than 3 90.0% of Redemption Amount 3 or more but less than 4 95.0% of Redemption Amount 4 or more 100.0% of Redemption Amount At any time we are engaged in an offering of shares, the Redemption Amount for shares purchased under our share redemption program will always be equal to or lower than the applicable per share offering price. As long as we are engaged in an offering, the Redemption Amount shall be the lesser of the per share amount the stockholder paid for their shares or the price per share in the current offering. The Redemption Amount for shares received as a stock distribution shall be equal to the lesser of the per share amount a stockholder paid for the original shares purchased or the price per share in the current offering. The length of time shares received as a stock distribution are held will be based on the date such stock distribution was declared. In addition, the redemption price per share will be adjusted for any stock combinations, splits and recapitalizations with respect to shares of common stock and reduced by the aggregate amount of net sale or refinance proceeds per share, if any, distributed to the redeeming stockholder prior to the redemption date. If we are no longer engaged in an offering, the per share Redemption Amount will be determined by our board of directors. Our board of directors will announce any redemption price adjustment and the time period of its effectiveness as a part of its regular communications with our stockholders. At any time the redemption price during an offering is determined by any method other than the offering price, if we have sold property and have made one or more special distributions to our stockholders of all or a portion of the net proceeds from such sales, the per share redemption price will be reduced by the net sale proceeds per share distributed to investors prior to the redemption date as a result of the sale of such property in the special distribution. Our board of directors will, in its sole discretion, determine which distributions, if any, constitute a special distribution. While our board of directors does not have specific criteria for determining a special distribution, we expect that a special distribution will only occur upon the sale of a property and the subsequent distribution of the net sale proceeds. There are several limitations on our ability to redeem shares under the share redemption program including, but not limited to: • Unless the shares are being redeemed in connection with a stockholder’s death, “qualifying disability” (as defined under the share redemption program) or bankruptcy, we may not redeem shares until the stockholder has held his or her shares for one year. • During any calendar year, we will not redeem in excess of 5% of the weighted-average number of shares outstanding during the prior calendar year. • The cash available for redemption is limited to the proceeds from the sale of shares pursuant to our distribution reinvestment plan, less any prior redemptions. • We have no obligation to redeem shares if the redemption would violate the restrictions on distributions under Maryland law, which prohibits distributions that would cause a corporation to fail to meet statutory tests of solvency. For the year ended December 31, 2016, we received one redemption request for approximately 4,000 shares (approximately $36,000) which was fulfilled in January 2017. For the year ended December 31, 2017, we received redemption requests totaling approximately 22,000 shares (approximately $211,000) which were fulfilled in April, July and October 2017 and January 2018. As of December 31, 2017, we had issued approximately 542,000 shares (approximately $5.9 million) under our distribution reinvestment plan. Operating Partnership Redemption Rights The limited partners of our Operating Partnership have the right to cause our Operating Partnership to redeem their limited partnership units for cash equal to the value of an equivalent number of our shares, or, at our option, we may purchase their limited partnership units by issuing one share of our common stock for each limited partnership unit redeemed. These rights may not be exercised under certain circumstances that could cause us to lose our REIT election. Furthermore, limited partners may exercise their redemption rights only after their limited partnership units have been outstanding for one year. Our Advisor is prohibited from exchanging or otherwise transferring its limited partnership units so long as our Advisor is acting as our advisor under the Advisory Agreement. Other Contingencies From time to time, we are party to legal proceedings that arise in the ordinary course of our business. We are not aware of any legal proceedings of which the outcome is reasonably likely to have a material adverse effect on our results of operations or financial condition, nor are we aware of any such legal proceedings contemplated by governmental authorities.

Potential Acquisitions

Potential Acquisitions	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Potential Acquisitions	Note 9. Potential Acquisitions Gilbert, Arizona On April 5, 2017, one of our subsidiaries executed a purchase and sale agreement with an unaffiliated third party for the acquisition of property that is being developed into a self storage facility located in Gilbert, AZ (the “Riggs Road Property”). The purchase price for the Riggs Road Property is $10.0 million, plus closing costs and acquisition fees. We expect the acquisition of the Riggs Road Property to close in the third quarter of 2018 after construction is complete on the self storage facility and a certificate of occupancy has been issued. We expect to fund such acquisition with the net proceeds from our Public Offering and/or through a drawdown on our Amended KeyBank Facility. If we fail to acquire the Riggs Road Property, in addition to the incurred acquisition costs, we may also forfeit earnest money of $1.0 million as a result. On November 9, 2017, one of our subsidiaries made a preferred equity investment of approximately $1.25 million in the entity that is developing the Riggs Road Property. Such investment will be redeemed upon purchase of the completed property and has a preferred return of 8% to be paid quarterly, with an additional 4% preferred return paid upon closing of the property. Las Vegas, Nevada On May 9, 2017, one of our subsidiaries entered into an assignment with a subsidiary of our Sponsor in which the subsidiary of our Sponsor assigned us a purchase and sale agreement with an unaffiliated third party for the acquisition of property that is being developed into a self storage facility located in Las Vegas, NV (the “Deer Springs Property”). The purchase price for the Deer Springs Property is approximately $9.2 million, plus closing costs and acquisition fees. We expect the acquisition of the Deer Springs Property to close in the third quarter of 2018 after construction is complete on the self storage facility and a certificate of occupancy has been issued. We expect to fund such acquisition with the net proceeds from our Public Offering and/or through a drawdown on our Amended KeyBank Facility. If we fail to acquire the Deer Springs Property, in addition to the incurred acquisition costs, we may also forfeit earnest money of $0.5 million as a result.

Selected Quarterly Data

Selected Quarterly Data	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Data	Note 10. Selected Quarterly Data (Unaudited) The following is a summary of quarterly financial information for the years ended December, 31, 2017 and 2016, respectively: Three months ended March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 Total revenues $ 2,704,431 $ 3,048,381 $ 3,804,702 $ 4,228,847 Total operating expenses 3,619,475 4,097,677 5,693,427 4,191,889 Operating income (loss) (915,044 ) (1,049,296 ) (1,888,725 ) 36,958 Net income (loss) (1,091,592 ) (1,128,050 ) (1,791,570 ) 55,270 Net income (loss) attributable to common stockholders (1,090,197 ) (1,126,969 ) (1,790,415 ) 55,455 Net loss per Class A share-basic and diluted (0.08 ) (0.04 ) (0.07 ) 0.00 Net loss per Class T share-basic and diluted (0.08 ) (0.04 ) (0.07 ) 0.00 Three months ended March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total revenues $ 2,072,885 $ 2,249,591 $ 2,437,082 $ 2,554,201 Total operating expenses 2,979,250 2,954,341 2,486,959 2,751,160 Operating loss (906,365 ) (704,750 ) (49,877 ) (196,959 ) Net loss (1,520,001 ) (1,279,833 ) (571,599 ) (583,941 ) Net loss attributable to common stockholders (2,021,593 ) (1,783,520 ) (964,435 ) (602,913 ) Net loss per Class A share-basic and diluted (0.63 ) (0.39 ) (0.17 ) (0.09 ) Net loss per Class T share-basic and diluted (0.63 ) (0.39 ) (0.17 ) (0.09 ) As discussed in Note 3, during the fourth quarter of 2016 we completed the purchase price allocations for the properties acquired during the fourth quarter of 2015, as well as San Antonio II, Stoney Creek, Torbarrie, Baseline and Asheville. Also during the fourth quarter of 2016 we recognized cumulative measurement period adjustments in our consolidated statement of operations. If such measurement period adjustments were retroactively recorded they would have had the aggregate impact of decreasing depreciation by approximately $5,000, $41,000, $40,000 and $40,000 and decreasing intangible amortization expense by approximately $8,000, $76,000, $64,000 and $64,000, respectively related to the fourth quarter of 2015, and first, second and third quarters of 2016. The cumulative measurement period adjustments were recorded in the fourth quarter of 2016. Also as discussed in Note 3, during the fourth quarter of 2017 we completed the purchase price allocations for the properties acquired during 2017 and we recognized cumulative measurement period adjustments in our consolidated statement of operations. If such measurement period adjustments were retroactively recorded they would have had the aggregate impact of decreasing depreciation by approximately $400, $400 and $500 and increasing intangible amortization expense by approximately $35,000, $18,000

Declaration of Distributions

Declaration of Distributions	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Declaration of Distributions	Note 11. Declaration of Distributions Cash Distribution Declaration On December 18, 2017, our board of directors declared a daily distribution in the amount of $0.0010958904 per share on the outstanding shares of common stock, payable to both Class A and Class T stockholders of record of such shares as shown on our books as of the close of business on each day during the period commencing on January 1, 2018 and ending March 31, 2018. In connection with this distribution, after the stockholder servicing fee is paid, approximately $0.0008 per day will be paid per class T share. Such distributions payable to each stockholder of record during a month will be paid the following month.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Note 12. Subsequent Events Completed Acquisitions Pembroke Pines Property On February 1, 2018, we closed on a self storage facility located in Pembroke Pines, Florida for a purchase price of approximately $15.7 million, plus closing costs and acquisition fees, which was funded with the net proceeds from our Offering. We incurred acquisition fees of approximately $0.3 million in connection with the acquisition. Riverview Property On February 21, 2018, we closed on a self storage facility located in Riverview, Florida for a purchase price of approximately $7.8 million, plus closing costs and acquisition fees, which was funded with net proceeds from our Offering. We incurred acquisition fees of approximately $0.1 million in connection with the acquisition. Eastlake Property On March 9, 2018, we closed on a self storage facility located in Eastlake, California for a purchase price of approximately $17.0 million, plus closing costs and acquisition fees, which was funded with net proceeds from our Offering. We incurred acquisition fees of approximately $0.3 million in connection with the acquisition. Potential Acquisitions Mckinney Property On March 6, 2018, we entered into a purchase and sale agreement with an unaffiliated third party for the acquisition of an existing self storage facility located in McKinney, Texas (the “McKinney Property”). The purchase price for the McKinney Property is approximately $10.6 million, plus closing costs and acquisition fees. We expect the acquisition of the McKinney Property to close in the second quarter of 2018. We expect to fund such acquisition with the net proceeds from our Offering and our Amended KeyBank Facility. If we fail to acquire the McKinney Property, in addition to the incurred acquisition costs, we may also forfeit earnest money as a result. Cash Distribution Declaration On March 14, 2018, our board of directors declared a daily distribution in the amount of $0.0010958904 per share on the outstanding shares of common stock, payable to both Class A and Class T stockholders of record of such shares as shown on our books as of the close of business on each day during the period commencing on April 1, 2018 and ending June 30, 2018. In connection with this distribution, after the stockholder servicing fee is paid, approximately $0.0008 per day will be paid per class T share. Such distributions payable to each stockholder of record during a month will be paid the following month. Distribution Reinvestment Plan Offering As of March 15, 2018, we have issued approximately 0.4 million shares of our common stock for gross proceeds of approximately $4.8 million, pursuant to our DRP Offering. Tenant Insurance Joint Venture In connection with the property management agreement amendments effective as of October 1, 2017, we agreed with our Property Manager or an affiliate to share equally in the net revenue attributable to the sale of tenant insurance at our properties. To facilitate such revenue sharing, we and an affiliate of our Property Manager agreed to transfer our respective rights in such tenant insurance revenue to a newly created joint venture, Strategic Storage TI Services GT JV, LLC (the “TI Joint Venture”), a Delaware limited liability company owned 50% by our TRS subsidiary and 50% by our Property Manager’s affiliate SmartStop TI GT, LLC (“SS TI GT”). Under the terms of the TI Joint Venture agreement, the TRS will receive 50% of the net economics generated from such tenant insurance and SS TI GT will receive the other 50% of such net revenues. The TI Joint Venture further provides, among other things, that if a member or its affiliate terminates all or substantially all of the property management agreements or defaults in its material obligations under the agreement or undergoes a change of control (the “Triggering Member”), the other member generally shall have the right (but not the obligation) to either (i) sell its 50% interest in the TI Joint Venture to the Triggering Member at fair market value (as agreed upon or as determined under an appraisal process) or (ii) purchase the Triggering Member’s 50% interest in the TI Joint Venture at 95% of fair market value.

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2017
Real Estate And Accumulated Depreciation Disclosure [Abstract]
Schedule III - Real Estate and Accumulated Depreciation	STRATEGIC STORAGE GROWTH TRUST, INC. AND SUBSIDIARIES SCHEDULE III December 31, 2017 Initial Cost to Company Gross Carrying Amount at December 31, 2017 Description ST Encumbrance Land Building and Improvements Total Cost Capitalized Subsequent to Acquisition Land Building and Improvements Total Accumulated Depreciation Date of Construction Date Acquired Fort Pierce FL $ — $ 700,000 $ 3,060,000 $ 3,760,000 $ 122,945 $ 700,000 $ 3,182,945 $ 3,882,945 $ (388,608 ) 2008 7/31/2014 Las Vegas I NV — 2,180,000 6,865,000 9,045,000 241,259 2,180,000 7,106,259 9,286,259 (523,570 ) 1999 7/31/2014 Las Vegas II NV — 1,380,000 4,460,000 5,840,000 216,529 1,380,000 4,676,529 6,056,529 (859,444 ) 1996 9/29/2014 Colorado Springs CO — 1,510,000 2,526,875 4,036,875 435,279 1,510,000 2,962,154 4,472,154 (250,968 ) 1983 1/29/2015 Riverside CA — 220,000 1,766,875 1,986,875 378,839 220,000 2,145,714 2,365,714 (178,065 ) 1980 2/05/2015 Stockton CA — 150,000 1,356,875 1,506,875 140,477 150,000 1,497,352 1,647,352 (341,641 ) 1984 2/05/2015 Azusa CA — 1,260,000 2,716,875 3,976,875 256,206 1,260,000 2,973,081 4,233,081 (360,664 ) 1986 2/05/2015 Romeoville IL — 480,000 2,766,875 3,246,875 343,194 480,000 3,110,069 3,590,069 (356,202 ) 1986 2/05/2015 Elgin IL — 110,000 546,875 656,875 348,381 110,000 895,256 1,005,256 (111,401 ) 1986 2/05/2015 San Antonio I TX — 4,069,211 7,122,002 11,191,213 15,392 4,069,212 7,137,393 11,206,605 (480,855 ) 1998 12/17/2015 Kingwood TX — 3,622,192 4,162,277 7,784,469 41,457 3,622,192 4,203,734 7,825,926 (317,308 ) 2001 12/17/2015 Aurora CO — 1,154,219 5,943,909 7,098,128 41,192 1,154,219 5,985,101 7,139,320 (518,087 ) 2015 12/17/2015 San Antonio II TX — 2,406,214 9,253,638 11,659,852 24,568 2,406,214 9,278,206 11,684,420 (616,761 ) 2004 1/06/2016 Stoney Creek – TOR – CAN (1) 796,462 1,516,032 — 1,516,032 168,777 (2) 1,684,809 — 1,684,809 — N/A 2/11/2016 Torbarrie – TOR – CAN (1) — 1,422,904 898,676 2,321,580 68,220 (2) 1,465,744 924,056 2,389,800 — 1980 5/17/2016 Phoenix AZ 5,053,000 (3) 710,796 6,512,011 7,222,807 26,983 710,796 6,538,994 7,249,790 (358,622 ) 2016 5/26/2016 Asheville I NC — 1,421,684 1,578,316 3,000,000 — 1,421,684 1,578,316 3,000,000 — 1982 12/30/2016 Elk Grove IL — 1,383,000 8,659,000 10,042,000 44,574 1,383,000 8,703,574 10,086,574 (296,688 ) 2016 1/13/2017 Garden Grove CA — 4,376,364 14,023,636 18,400,000 175,331 4,376,364 14,198,967 18,575,331 (367,748 ) 2017 3/16/2017 Asheville II NC — 1,720,000 2,973,406 4,693,406 19,504 1,720,000 2,992,910 4,712,910 (112,166 ) 1992 5/11/2017 Asheville III NC — 1,930,000 3,096,594 5,026,594 41,418 1,930,000 3,138,012 5,068,012 (88,343 ) 1994 5/11/2017 Sarasota FL — 688,000 6,012,000 6,700,000 25,985 688,000 6,037,985 6,725,985 (117,204 ) 2017 5/23/2017 Mount Pleasant SC — 1,015,000 4,660,000 5,675,000 23,024 1,015,000 4,683,024 5,698,024 (66,991 ) 2016 7/17/2017 Nantucket MA — 5,318,000 31,456,000 36,774,000 — 5,318,000 31,456,000 36,774,000 (341,443 ) 2002 8/22/2017 $ 5,849,462 $ 40,743,616 $ 132,417,715 $ 173,161,331 $ 3,199,534 $ 40,955,234 $ 135,405,631 $ 176,360,865 (4) $ (7,052,779 ) (1) This property is located in Ontario, Canada. (2) The change in cost at these self storage facilities are the net of the impact of foreign exchange rate changes and any actual additions. ( 3 ) In January 2018, we paid off the mortgage debt on our Arizona property of $5,053,000 which was otherwise due in May 2019. ( 4 ) The aggregate cost of real estate for United States federal income tax purposes is $186,004,189. STRATEGIC STORAGE GROWTH TRUST, INC. AND SUBSIDIARIES REAL ESTATE AND ACCUMULATED DEPRECIATION December 31, 2017 Activity in real estate facilities during 2017 was as follows: 2017 Real estate facilities Balance at beginning of year $ 87,581,604 Facility acquisitions 87,311,000 Impact of foreign exchange rate changes 270,585 Asset disposals (133,985 ) Improvements 1,331,661 Balance at end of year $ 176,360,865 Accumulated depreciation Balance at beginning of year $ (3,300,523 ) Asset disposals 133,985 Depreciation expense (3,886,241 ) Balance at end of year $ (7,052,779 ) Construction in process Balance at beginning of year $ 2,174,191 Additions 8,579,047 Balance at end of year $ 10,753,238 Real estate facilities, net $ 180,061,324 S-1

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) as contained within the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) and the rules and regulations of the SEC.
Principles of Consolidation	Principles of Consolidation Our financial statements, and the financial statements of our Operating Partnership, including its wholly-owned subsidiaries, are consolidated in the accompanying consolidated financial statements. The portion of these entities not wholly-owned by us is presented as noncontrolling interests. All significant intercompany accounts and transactions have been eliminated in consolidation.
Consolidation Considerations	Consolidation Considerations Current accounting guidance provides a framework for identifying a variable interest entity (“VIE”) and determining when a company should include the assets, liabilities, noncontrolling interests, and results of activities of a VIE in its consolidated financial statements. In general, a VIE is an entity or other legal structure used to conduct activities or hold assets that either (1) has an insufficient amount of equity to carry out its principal activities without additional subordinated financial support, (2) has a group of equity owners that are unable to make significant decisions about its activities, or (3) has a group of equity owners that do not have the obligation to absorb losses or the right to receive returns generated by its operations. Generally, a VIE should be consolidated if a party with an ownership, contractual, or other financial interest in the VIE (a variable interest holder) has the power to direct the VIE’s most significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could be significant to the VIE. A variable interest holder that consolidates the VIE is called the primary beneficiary. Upon consolidation, the primary beneficiary generally must initially record all of the VIE’s assets, liabilities, and noncontrolling interest at fair value and subsequently account for the VIE as if it were consolidated based on majority voting interest. Our Operating Partnership is deemed to be a VIE and is consolidated by the Company as the primary beneficiary. As of December 31, 2017, we had not entered into any other contracts/interests that would be deemed to be variable interests in a VIE other than one preferred equity investment, which is accounted for under the equity method of accounting. Other than the preferred equity investment, we do not currently have any relationships with unconsolidated entities or financial partnerships.
Noncontrolling Interest in Consolidated Entities	Noncontrolling Interest in Consolidated Entities We account for the noncontrolling interest in our Operating Partnership in accordance with the related accounting guidance. Due to our control through our general partnership interest in our Operating Partnership and the limited rights of the limited partner, our Operating Partnership, including its wholly-owned subsidiaries, are consolidated with the Company and the limited partner interest is reflected as a noncontrolling interest in the accompanying consolidated balance sheets. The noncontrolling interest shall be attributed its share of income and losses, even if that attribution results in a deficit noncontrolling interest balance.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management will adjust such estimates when facts and circumstances dictate. Actual results could materially differ from those estimates. The most significant estimates made include the allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed at fair value, the determination if certain entities should be consolidated, the evaluation of potential impairment of long-lived assets, and the estimated useful lives of real estate assets and intangibles.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all short-term, highly liquid investments that are readily convertible to cash with a maturity of three months or less at the time of purchase to be cash equivalents. We may maintain cash and cash equivalents in financial institutions in excess of insured limits, but believe this risk will be mitigated by only investing in or through major financial institutions.
Real Estate Purchase Price Allocation	Real Estate Purchase Price Allocation We account for acquisitions in accordance with GAAP which requires that we allocate the purchase price of the property to the tangible and intangible assets acquired and the liabilities assumed based on estimated fair values. This guidance requires us to make significant estimates and assumptions, including fair value estimates, as of the acquisition date. Acquisitions of portfolios of facilities are allocated to the individual facilities based upon 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 facility along with current and projected occupancy and rental rate levels or appraised values, if available. Allocations to the individual assets and liabilities are based upon comparable market sales information for land and estimates of depreciated replacement cost of equipment, building and site improvements. In allocating the purchase price, we determine whether the acquisition includes intangible assets or liabilities. Substantially all of the leases in place at acquired properties are at market rates, as the majority of the leases are month-to-month contracts. We also consider whether in-place, market leases represent an intangible asset. We recorded approximately $1.3 million and approximately $0.4 million in intangible assets to recognize the value of in-place leases related to our acquisitions during the years ended December 31, 2017 and 2016, respectively. We do not expect, nor to date have we recorded, intangible assets for the value of customer relationships because we expect we will not have concentrations of significant customers and the average customer turnover will be fairly frequent. During the years ended December 31, 2017, 2016 and 2015 we expensed approximately $3.1 million, $1.0 million and $1.1 million, respectively, of acquisition-related transaction costs. Should the initial accounting for an acquisition be incomplete by the end of a reporting period that falls within the measurement period, we will report provisional amounts in our financial statements. During the measurement period, we will adjust the provisional amounts recognized at the acquisition date to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date and we will record those adjustments to our consolidated financial statements. We will recognize any measurement period adjustments during the period in which we determine the amount of the adjustment to our consolidated financial statements, potentially including adjustments to interest, depreciation and amortization expense.
Evaluation of Possible Impairment of Long-Lived Assets	Evaluation of Possible Impairment of Long-Lived Assets Management monitors events and changes in circumstances that could indicate that the carrying amounts of our long-lived assets may not be recoverable. When indicators of potential impairment are present that indicate that the carrying amounts of the assets may not be recoverable, we will assess the recoverability of the assets by determining whether the carrying value of the long-lived assets will be recovered through the undiscounted future operating cash flows expected from the use of the asset and its eventual disposition. In the event that such expected undiscounted future cash flows do not exceed the carrying value, we will adjust the value of the long-lived assets to the fair value and recognize an impairment loss. For the years ended December 31, 2017, 2016 and 2015, no impairment losses were recognized.
Real Estate Held for Sale	Real Estate Held for Sale We generally consider real estate to be “held for sale” when the following criteria are met: (i) management commits to a plan to sell the property, (ii) the property is available for sale immediately, (iii) the property is actively being marketed for sale at a price that is reasonable in relation to its current fair value, (iv) the sale of the property within one year is considered probable and (v) significant changes to the plan to sell are not expected. Real estate that is held for sale is classified as “real estate held for sale” in the accompanying consolidated financial statements for the periods when it was held for sale. Real estate classified as held for sale is no longer depreciated and is reported at the lower of its carrying value or its estimated fair value less estimated costs to sell. Operating results and related gains (losses) on sale of properties that were disposed of or classified as held for sale in the ordinary course of business are included in continuing operations on our consolidated statements of operations, consistent with current accounting guidance. As of December 31, 2017 and December 31, 2016, there was no real estate classified as held for sale.
Revenue Recognition	Revenue Recognition Management believes that all of our leases are operating leases. Rental income is recognized in accordance with the terms of the leases, which generally are month-to-month. Revenues from any long-term operating leases are recognized on a straight-line basis over the term of the lease. The excess of rents received over amounts contractually due pursuant to the underlying leases is included in accounts payable and accrued liabilities in our consolidated balance sheets and contractually due but unpaid rent is included in other assets.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts Tenant accounts receivable is reported net of an allowance for doubtful accounts. Management’s estimate of the allowance is based upon a review of the current status of tenant accounts receivable. It is reasonably possible that management’s estimate of the allowance will change in the future.
Real Estate Facilities	Real Estate Facilities Real estate facilities are recorded based on fair value as of the date of acquisition. We capitalize costs incurred to develop, construct, renovate and improve properties, including interest and property taxes incurred during the construction period. The construction period begins when expenditures for the real estate assets have been made and activities that are necessary to prepare the asset for its intended use are in progress. The construction period ends when the asset is substantially complete and ready for its intended use.
Depreciation of Real Property Assets	Depreciation of Real Property Assets Our management is required to make subjective assessments as to the useful lives of our depreciable assets. We consider the period of future benefit of the asset to determine the appropriate useful lives. Depreciation of our real property assets is charged to expense on a straight-line basis over the estimated useful lives as follows: Description Standard Depreciable Life Land Not Buildings 30-35 years Site Improvements 7-10 years
Depreciation of Personal Property Assets	Depreciation of Personal Property Assets Personal property assets consist primarily of furniture, fixtures and equipment and are depreciated on a straight-line basis over the estimated useful lives generally ranging from 3 to 5 years, and are included in other assets on our consolidated balance sheets.
Intangible Assets	Intangible Assets We have allocated a portion of our real estate purchase price to in-place leases. We are amortizing in-place lease intangibles on a straight-line basis over the estimated future benefit period. As of December 31, 2017 and 2016, the gross amounts allocated to in-place lease intangibles were approximately $4.1 million and approximately $2.7 million, respectively, and accumulated amortization of in-place lease intangibles totaled approximately $3.2 million and approximately $2.3 million, respectively. Total estimated amortization expense of intangible assets for the years ending December 31, 2018 and 2019 is approximately $0.8 million and $0.1 million, respectively, and none for the years thereafter.
Foreign Currency Translation	Foreign Currency Translation For non-U.S. functional currency operations, assets and liabilities are translated to U.S. dollars at current exchange rates. Revenues and expenses are translated at the average rates for the period. All related adjustments are recorded in accumulated other comprehensive income (loss) as a separate component of equity. Transactions denominated in a currency other than the functional currency of the related operation are recorded at rates of exchange in effect at the date of the transaction. Gains or losses on foreign currency transactions are recorded in other income (expense).
Debt Issuance Costs	Debt Issuance Costs The net carrying value of costs incurred in connection with obtaining revolving financing are presented in debt issuance costs on our consolidated balance sheets and such amount as of December 31, 2017 and 2016 totaled approximately $0.5 million and approximately $0.3 million, respectively. The net carrying value of costs incurred in connection with obtaining non-revolving financing are presented in our consolidated balance sheets as a deduction from secured debt and such amounts as of December 31, 2017 and 2016 totaled approximately $0.3 million and approximately $0.2 million, respectively. Debt issuance costs are amortized on a straight-line basis over the term of the related loan, which is not materially different than the effective interest method.
Organizational and Offering Costs	Organizational and Offering Costs Our Advisor funded organization and offering costs on our behalf. We were required to reimburse our Advisor for such organization and offering costs; provided, however, our Advisor was required to reimburse us within 60 days after the end of the month in which the Primary Offering terminated to the extent we paid or reimbursed organization and offering costs (excluding sales commissions, dealer manager fees and stockholder servicing fees) in excess of 3.5% of the gross offering proceeds from the Primary Offering. Such costs were recognized as a liability when we had a present responsibility to reimburse our Advisor, which is defined in our Advisory Agreement as the date we satisfied the minimum offering requirements of our Private Offering (which occurred on May 23, 2014). If at any point in time we determined that the total organization and offering costs were expected to exceed 3.5% of the gross proceeds anticipated to be received from the Primary Offering, we would have recognized such excess as a capital contribution from our Advisor. Subsequent to the close down of our Primary Offering, we determined that total organization and offering costs did not exceed 3.5% of the gross proceeds received from the Primary Offering. Offering costs are recorded as an offset to additional paid-in capital, and organization costs are recorded as an expense. We pay our Dealer Manager an ongoing stockholder servicing fee that is payable monthly and accrues daily in an amount equal to 1/365th of 1% of the purchase price per share of the Class T Shares sold in the Primary Offering. We will cease paying the stockholder servicing fee with respect to the Class T Shares sold in the Primary Offering at the earlier of (i) the date we list our shares on a national securities exchange, merge or consolidate with or into another entity, or sell or dispose of all or substantially all of our assets, (ii) the date at which the aggregate underwriting compensation from all sources equals 10% of the gross proceeds from the sale of both Class A Shares and Class T Shares in our Primary Offering (i.e., excluding proceeds from sales pursuant to our distribution reinvestment plan), which calculation shall be made by us with the assistance of our Dealer Manager commencing after the termination of the Primary Offering; (iii) the fifth anniversary of the last day of the fiscal quarter in which our Primary Offering (i.e., excluding our distribution reinvestment plan offering) terminates; and (iv) the date that such Class T Share is redeemed or is no longer outstanding. Our Dealer Manager entered into participating dealer agreements with certain other broker-dealers which authorized them to sell our shares. Upon sale of our shares by such broker-dealers, our Dealer Manager re-allowed all of the sales commissions and, subject to certain limitations, the stockholder servicing fees paid in connection with sales made by these broker-dealers. Our Dealer Manager was also permitted to re-allow to these broker-dealers a portion of their dealer manager fee as marketing fees, reimbursement of certain costs and expenses of attending training and education meetings sponsored by our Dealer Manager, payment of attendance fees required for employees of our Dealer Manager or other affiliates to attend retail seminars and public seminars sponsored by these broker-dealers, or to defray other distribution-related expenses. Our Dealer Manager also received reimbursement of bona fide due diligence expenses; however, to the extent the due diligence expenses could not be justified, any excess over actual due diligence expenses would have been considered underwriting compensation subject to a 10% FINRA limitation and, when aggregated with all other non-accountable expenses in connection with our Public Offering, could not exceed 3% of gross offering proceeds from sales in the Public Offering. We record a liability within Due to affiliates for the future estimated stockholder servicing fees at the time of sale of Class T Shares as an offering cost.
Redeemable Common Stock	Redeemable Common Stock We adopted a share redemption program that will enable stockholders to sell their shares to us in limited circumstances. We record amounts that are redeemable under the share redemption program as redeemable common stock in the accompanying consolidated balance sheets since the shares are redeemable at the option of the holder and therefore their redemption is outside our control. The maximum amount redeemable under our share redemption program is limited to the number of shares we can repurchase with the amount of the net proceeds from the sale of shares under the distribution reinvestment plan. However, accounting guidance states that determinable amounts that can become redeemable should be presented as redeemable when such amount is known. Therefore, the net proceeds from the distribution reinvestment plan are considered to be temporary equity and are presented as redeemable common stock in the accompanying consolidated balance sheet. In addition, current accounting guidance requires, among other things, that financial instruments that represent a mandatory obligation of us to repurchase shares be classified as liabilities and reported at settlement value. Our redeemable common shares are contingently redeemable at the option of the holder. When we determine we have a mandatory obligation to repurchase shares under the share redemption program, we reclassify such obligations from temporary equity to a liability based upon their respective settlement values. For the year ended December 31, 2017, we received redemption requests totaling approximately 22,000 shares and approximately $211,000. Such requests were fulfilled in April, July and October 2017 and January 2018. For the year ended December 31, 2016, we received one redemption request for approximately 4,000 shares and approximately $36,000. Such request was fulfilled in January 2017.
Accounting for Equity Awards	Accounting for Equity Awards The cost of restricted stock is required to be measured based on the grant date fair value and the cost recognized over the relevant service period.
Fair Value Measurements	Fair Value Measurements Under GAAP, we are required to measure certain financial instruments at fair value on a recurring basis. In addition, we are required to measure other financial instruments and balances at fair value on a non-recurring basis. Fair value is defined by the accounting standard for fair value measurements and disclosures as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. It also establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels. The following summarizes the three levels of inputs and hierarchy of fair value we use when measuring fair value: • Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access; • Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as interest rates and yield curves that are observable at commonly quoted intervals; and • Level 3 inputs are unobservable inputs for the assets or liabilities that are typically based on an entity’s own assumptions as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the fair value measurement will fall within the lowest level that is significant to the fair value measurement in its entirety. The accounting guidance for fair value measurements and disclosures provides a framework for measuring fair value and establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. In determining fair value, we will utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as consider counterparty credit risk in our assessment of fair value. Considerable judgment will be necessary to interpret Level 2 and 3 inputs in determining fair value of our financial and non-financial assets and liabilities. Accordingly, there can be no assurance that the fair values we will present will be indicative of amounts that may ultimately be realized upon sale or other disposition of these assets. Financial and non-financial assets and liabilities measured at fair value on a non-recurring basis in our consolidated financial statements consist of real estate and related liabilities assumed related to our acquisitions. The fair values of these assets and liabilities were determined as of the acquisition dates using widely accepted valuation techniques, including (i) discounted cash flow analysis, which considers, among other things, leasing assumptions, growth rates, discount rates and terminal capitalization rates, (ii) income capitalization approach, which considers prevailing market capitalization rates, and (iii) comparable sales activity. In general, we consider multiple valuation techniques when measuring fair values. However, in certain circumstances, a single valuation technique may be appropriate. All of the fair values of the assets and liabilities as of the acquisition dates were derived using Level 3 inputs. The carrying amounts of cash and cash equivalents, tenant accounts receivable, other assets, variable-rate secured debt, accounts payable and accrued liabilities, distributions payable and amounts due to affiliates approximate fair value. To comply with GAAP, we incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of derivative contracts for the effect of nonperformance risk, we will consider the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. We had no assets or liabilities that required fair value measurements on a recurring basis at December 31, 2017 and 2016.
Income Taxes	Income Taxes We made an election to be taxed as a Real Estate Investment Trust (“REIT”), under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”), commencing with our taxable year ended December 31, 2014. To qualify as a REIT, we must continue to meet certain organizational and operational requirements, including a requirement to distribute at least 90% of the REIT’s ordinary taxable income to stockholders (which is computed without regard to the dividends paid deduction or net capital gains and which does not necessarily equal net income as calculated in accordance with GAAP). As a REIT, we generally will not be subject to federal income tax on taxable income that we distribute to our stockholders. If we fail to qualify as a REIT in any taxable year, we will then be subject to federal income taxes on our taxable income at regular corporate rates and will not be permitted to qualify for treatment as a REIT for federal income tax purposes for four years following the year during which qualification is lost unless the IRS grants us relief under certain statutory provisions. Such an event could materially adversely affect our net income and net cash available for distribution to stockholders. However, we believe that we are organized and operate in such a manner as to qualify for treatment as a REIT and intend to operate in the foreseeable future in such a manner that we will remain qualified as a REIT for federal income tax purposes. Even if we continue to qualify for taxation as a REIT, we may be subject to certain state and local taxes on our income and property, and federal income and excise taxes on our undistributed income. We filed elections to treat our TRS as a taxable REIT subsidiary effective January 1, 2014. In general, the TRS performs additional services for our customers and generally engages in any real estate or non-real estate related business. The TRS is subject to corporate federal and state income tax. The TRS follows accounting guidance which requires the use of the asset and liability method. Deferred income taxes represent the tax effect of future differences between the book and tax bases of assets and liabilities.
Per Share Data	Per Share Data Basic earnings per share attributable to our common stockholders for all periods presented is computed by dividing net income (loss) attributable to our common stockholders by the weighted average number of shares outstanding during the period, excluding unvested restricted stock. Diluted earnings per share is computed by including the dilutive effect of unvested restricted stock, utilizing the treasury stock method. For all periods presented the dilutive effective of unrestricted stock was not included in the diluted weighted average shares as such shares were antidilutive.
Recently Issued Accounting Guidance	Recently Issued Accounting Guidance In May 2014, the FASB issued ASU 2014-09 “Revenue from Contracts with Customers” as ASC Topic 606. The objective of ASU 2014-09 is to establish a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and will supersede most of the existing revenue recognition guidance, including industry-specific guidance. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the new standard, companies will perform a five-step analysis of transactions to determine when and how revenue is recognized. ASU 2014-09 applies to all contracts with customers except those that are within the scope of other topics in the FASB ASC. In July 2015, the FASB voted to defer the effective date by one year to annual reporting periods (including interim periods within those periods) beginning after December 15, 2017 with early adoption permitted. This ASU will be applied using the modified retrospective approach. We have determined that our self storage rental revenues will not be subject to the guidance in ASU 2014-09, as they qualify as lease contracts, which are excluded from its scope. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments–Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” ASU 2016-01 updates guidance related to recognition and measurement of financial assets and financial liabilities. ASU 2016-01 requires all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments in ASU 2016-01 also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, the amendments in ASU 2016-01 eliminate the requirement to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. ASU 2016-01 is effective for fiscal years and interim periods within those years beginning after December 15, 2017, with early adoption permitted. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” ASU 2016-02 amends the guidance on accounting for leases. Under ASU 2016-02, lessees will be required to recognize the following for all leases (with the exception of short term leases) at the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease; and (2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under ASU 2016-02, lessor accounting is largely unchanged. It also includes extensive amendments to the disclosure requirements. ASU 2016-02 is effective for fiscal years and interim periods beginning after December 15, 2018. Early adoption is permitted for financial statements that have not yet been made available for issuance. ASU 2016-02 requires a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. While we continue to evaluate the standard, based upon our assessment to date, we do not anticipate the adoption of this standard will have a material impact on our consolidated financial statements, because substantially all of our lease revenues are derived from month-to-month leases. In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” ASU 2016-15 addresses eight classification issues related to the statement of cash flows. The guidance will become effective for periods beginning after December 15, 2017, with early adoption permitted. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In November 2016, the FASB issued ASU No. 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 will require companies to include restricted cash and restricted cash equivalents with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 will require a disclosure of a reconciliation between the statement of financial position and the statement of cash flows when the statement of financial position includes more than one line item for cash, cash equivalents, restricted cash, and restricted cash equivalents. Entities with material restricted cash and restricted cash equivalent balances will be required to disclose the nature of the restrictions. ASU 2016-18 is effective for reporting periods beginning after December 15, 2017, with early adoption permitted, and will be applied retrospectively to all periods presented. As of December 31, 2017 and 2016, we did not have any restricted cash. We adopted this ASU on January 1, 2018 and its adoption did not have a material impact on our consolidated financial statements. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business.” ASU 2017-01 clarifies the framework for determining whether an integrated set of assets and activities meets the definition of a business. The revised framework provides guidance for determining whether an integrated set of assets and activities is a business and narrows the definition of a business, which is expected to result in fewer transactions being accounted for as business combinations. Acquisitions of integrated sets of assets and activities that do not meet the definition of a business are accounted for as asset acquisitions. This update is effective for fiscal years and for interim periods within those fiscal years, beginning after December 15, 2017 and shall be applied on a prospective basis. We adopted this ASU on January 1, 2018. We expect that acquisitions of real estate or in-substance real estate will not meet the revised definition of a business because substantially all of the fair value is concentrated in a single identifiable asset or group of similar identifiable assets (i.e. land, buildings, and related intangible assets) or because the acquisition does not include a substantive process in the form of an acquired workforce or an acquired contract that cannot be replaced without significant cost, effort or delay. As a result, certain transaction costs will be capitalized rather than expensed.

Summary of Significant Accoun23

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Estimated Useful Lives used to Depreciate Real Property Assets	Depreciation of our real property assets is charged to expense on a straight-line basis over the estimated useful lives as follows: Description Standard Depreciable Life Land Not Buildings 30-35 years Site Improvements 7-10 years

Real Estate Facilities (Tables)

Real Estate Facilities (Tables)	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
Summary of Activity in Real Estate Facilities	The following summarizes the activity in real estate facilities during the years ended December 31, 2017 and 2016: Real estate facilities Balance at December 31, 2015 $ 60,329,399 Facility acquisitions 25,720,271 Finalized purchase price allocations related to fourth quarter 2015 acquisitions 563,811 Insured property damage (1) (510,872 ) Impact of foreign exchange rate changes (33,587 ) Improvements and additions 1,512,582 Balance at December 31, 2016 87,581,604 Facility acquisitions 87,311,000 Impact of foreign exchange rate changes 270,585 Asset disposals (133,985 ) Improvements and additions 1,331,661 Balance at December 31, 2017 $ 176,360,865 Accumulated depreciation Balance at December 31, 2015 $ (1,157,113 ) Depreciation expense (2,143,410 ) Balance at December 31, 2016 (3,300,523 ) Asset disposals 133,985 Depreciation expense (3,886,241 ) Balance at December 31, 2017 $ (7,052,779 ) (1) Insured property damage was incurred at our San Antonio I property during the year ended December 31, 2016. An insurance claim was submitted that covered the estimated repair costs with the exception of our $25,000 insurance deductible. In accordance with GAAP we recorded the insurance proceeds in other assets. The property remained open and neither the damage, nor the repair process impacted our operations.
Summary of Purchase Price Allocations for Acquisitions	The following tables summarize the purchase price allocations for our acquisitions during the years ended December 31, 2017 and 2016: Property Acquisition Date Real Estate Assets Intangibles Total(1) Debt Issued 2017 Revenue(2) 2017 Property Operating Income (Loss)(3) Elk Grove – IL (4) 01/13/17 $ 10,042,000 $ 58,000 $ 10,100,000 $ — $ 400,996 $ (304,960 ) (9) Garden Grove – CA (5) 03/16/17 18,400,000 — 18,400,000 — 320,280 (77,192 ) (9) Asheville II – NC 05/11/17 4,693,406 250,000 4,943,406 — 312,246 173,997 Asheville III – NC 05/11/17 5,026,594 280,000 5,306,594 — 320,099 178,946 Sarasota – FL (6) 05/23/17 6,700,000 — 6,700,000 — 85,861 (73,168 ) (9) Mount Pleasant – SC (7) 07/17/17 5,675,000 25,000 5,700,000 — 89,353 (38,119 ) (9) Nantucket – MA 08/22/17 36,774,000 726,000 37,500,000 — 1,005,308 832,373 2017 Total $ 87,311,000 $ 1,339,000 $ 88,650,000 $ — $ 2,534,143 $ 691,877 Property Acquisition Date Real Estate Assets Intangibles Total(1) Debt Issued 2016 Revenue(2) 2016 Property Operating Income(3) San Antonio II – TX 01/06/16 $ 11,659,852 $ 443,773 $ 12,103,625 $ 7,950,000 $ 995,515 $ 334,383 Stoney Creek – TOR – CAN (8) 02/11/16 1,516,032 — 1,516,032 — — — Torbarrie – TOR – CAN (8) 05/17/16 2,321,580 — 2,321,580 — — — Baseline – AZ (10) 05/26/16 7,222,807 — 7,222,807 5,053,000 167,788 12,444 Asheville I – NC (8) 12/30/16 3,000,000 — 3,000,000 — — — 2016 Total $ 25,720,271 $ 443,773 $ 26,164,044 $ 13,003,000 $ 1,163,303 $ 346,827 (1) The allocations noted above are based on a determination of the fair value of the total consideration provided and represent cash paid for the transaction. (2) The operating results of the facilities acquired above have been included in our consolidated statements of operations since their respective acquisition date. (3) Property operating income (loss) excludes corporate general and administrative expenses, asset management fees, interest expense, depreciation, amortization, acquisition expenses and costs incurred in connection with the property management changes. (4) We acquired the Elk Grove Property, a lease-up property, with initial occupancy of approximately 32% (unaudited). The property’s occupancy has increased to approximately 60% (unaudited) as of December 31, 2017. (5) We acquired the Garden Grove Property, a lease-up property, with initial occupancy of approximately 9% (unaudited). The property’s occupancy has increased to approximately 57% (unaudited) as of December 31, 2017. (6) We acquired the Sarasota Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 53% (unaudited) as of December 31, 2017. (7) We acquired the Mount Pleasant Property, a lease-up property, with initial occupancy of 17% (unaudited). The property’s occupancy has increased to approximately 33% (unaudited) as of December 31, 2017. (8) Stoney Creek, Torbarrie and Asheville are self storage properties that are under construction. (9) These are all lease-up properties and we believe that in the future, these properties will provide additional operating income and cash flows as they stabilize. However, given the lease-up nature of such properties, they initially have a negative impact on our results of operations until occupancy and rates stabilize. (10) We acquired the Baseline Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 88% (unaudited) as of December 31, 2017.

Pro Forma Financial Informati25

Pro Forma Financial Information (Tables)	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Summary of Consolidated Results of Operations on Pro Forma Basis	Year Ended December 31, 2017 Year Ended December 31, 2016 Pro forma revenue $ 16,045,243 $ 13,076,995 Pro forma operating expenses (16,974,268 ) (14,384,811 ) Pro forma net loss attributable to common shareholders (1,073,269 ) (4,972,326 )

Secured Debt (Tables)

Secured Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Future Principal Payment Requirements on Outstanding Secured Debt	The following table presents the future principal payment requirements on outstanding secured debt as of December 31, 2017: 2018 $ — 2019 5,053,000 2020 — 2021 796,462 2022 — 2023 and thereafter — Total payments $ 5,849,462 Non-revolving debt issuance costs, net (254,683 ) Total $ 5,594,779

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Summary of Related Party Costs	Pursuant to the terms of the agreements described above, the following table summarizes related party costs incurred and paid by us for the years ended December 31, 2016 and 2017, as well as any related amounts payable as of December 31, 2016 and 2017: Year Ended December 31, 2016 Year Ended December 31, 2017 Incurred Paid Payable Incurred Paid Payable Expensed Operating expenses (including organizational costs) $ 545,696 $ 561,480 $ 9,915 $ 770,835 $ 723,044 $ 57,706 Asset management fees 417,217 409,967 7,250 736,757 728,382 15,625 Property management fees (1) 565,519 565,519 — 1,018,875 1,018,875 — Acquisition costs 753,090 863,741 6,424 2,023,134 1,993,908 35,650 Debt issuance costs 65,015 167,265 — — — — Capitalized Debt issuance costs — — — 3,983 3,983 — Acquisition costs — — — 150,000 150,000 — Additional Paid-in Capital Selling commissions 5,348,277 5,348,277 — 9,205,704 9,205,704 — Dealer Manager fees 1,474,763 1,380,898 99,026 3,057,148 3,156,174 — Stockholder servicing fees (2) 873,133 32,213 840,920 3,063,039 606,852 3,297,107 Offering costs 431,718 434,530 — 166,190 166,190 — Total $ 10,474,428 $ 9,763,890 $ 963,535 $ 20,195,665 $ 17,753,112 $ 3,406,088 (1) During the years ended December 31, 2016 and 2017, property management fees include approximately $475,000 and approximately $926,000, respectively, of fees paid to the sub-property manager of our properties. (2) The Company pays our Dealer Manager an ongoing stockholder servicing fee that is payable monthly and accrues daily in an amount equal to 1/365th of 1% of the purchase price per share of the Class T Shares sold in the Primary Offering.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Stock for Redemptions Based on Number of Years Stock Held	The amount that we may pay to redeem stock for redemptions is the redemption price set forth in the following table which is based upon the number of years the stock is held: Number Years Held Redemption Price Less than 1 No Redemption Allowed 1 or more but less than 3 90.0% of Redemption Amount 3 or more but less than 4 95.0% of Redemption Amount 4 or more 100.0% of Redemption Amount

Selected Quarterly Data (Tables

Selected Quarterly Data (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Information	The following is a summary of quarterly financial information for the years ended December, 31, 2017 and 2016, respectively: Three months ended March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 Total revenues $ 2,704,431 $ 3,048,381 $ 3,804,702 $ 4,228,847 Total operating expenses 3,619,475 4,097,677 5,693,427 4,191,889 Operating income (loss) (915,044 ) (1,049,296 ) (1,888,725 ) 36,958 Net income (loss) (1,091,592 ) (1,128,050 ) (1,791,570 ) 55,270 Net income (loss) attributable to common stockholders (1,090,197 ) (1,126,969 ) (1,790,415 ) 55,455 Net loss per Class A share-basic and diluted (0.08 ) (0.04 ) (0.07 ) 0.00 Net loss per Class T share-basic and diluted (0.08 ) (0.04 ) (0.07 ) 0.00 Three months ended March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total revenues $ 2,072,885 $ 2,249,591 $ 2,437,082 $ 2,554,201 Total operating expenses 2,979,250 2,954,341 2,486,959 2,751,160 Operating loss (906,365 ) (704,750 ) (49,877 ) (196,959 ) Net loss (1,520,001 ) (1,279,833 ) (571,599 ) (583,941 ) Net loss attributable to common stockholders (2,021,593 ) (1,783,520 ) (964,435 ) (602,913 ) Net loss per Class A share-basic and diluted (0.63 ) (0.39 ) (0.17 ) (0.09 ) Net loss per Class T share-basic and diluted (0.63 ) (0.39 ) (0.17 ) (0.09 )

Organization - Additional Infor

Organization - Additional Information (Detail)	May 05, 2017USD ($)	Apr. 13, 2017$ / shares	Oct. 01, 2015USD ($)$ / shares	Jan. 20, 2015USD ($)	Jan. 16, 2015USD ($)shares	May 31, 2013USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2017USD ($)EmployeePropertyState$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)shares	May 31, 2017$ / shares	May 23, 2014USD ($)	Jun. 17, 2013USD ($)
Organization and Nature of Operations [Line Items]
Date of formation of company								Mar. 12, 2013
Entity number of employees | Employee								0
Preferred Stock, shares authorized | shares								200,000,000	200,000,000
Preferred Stock, par value | $ / shares								$ 0.001	$ 0.001
Issuance of common stock								$ 171,162,483	$ 80,418,755	$ 18,920,107
Gross proceeds from issuance of common stock								171,980,653	79,620,048	18,961,011
Shares issued under DRP offering								$ 4,803,792	$ 1,112,347	10,706
DRP offering termination period	10 days
Shares issuable pursuant to distribution reinvestment plan				$ 95,000,000
Number of owned self storage facilities | Property								24
Number of states in which wholly-owned self storage facilities are located | State								10
Maximum
Organization and Nature of Operations [Line Items]
Shares issued under DRP offering	$ 115,600,000
Class A Common stock
Organization and Nature of Operations [Line Items]
Common stock, shares authorized | shares								350,000,000	350,000,000
Common stock, par value | $ / shares								$ 0.001	$ 0.001
Issuance of common stock								$ 10,060	$ 5,805	$ 1,887
Number of common stock issued | shares								10,060,184	5,804,542	1,887,318
Common Stock, shares issued | shares								18,942,639	8,607,246
Shares issued under DRP offering								$ 329	$ 105	$ 1
Estimated value per common share | $ / shares		$ 11.56
Class A Common stock | Distribution Reinvestment Plan
Organization and Nature of Operations [Line Items]
Estimated value per common share | $ / shares		11.56
Selling price per share | $ / shares											$ 11.56
Class T Common stock
Organization and Nature of Operations [Line Items]
Common stock, shares authorized | shares								350,000,000	350,000,000
Common stock, par value | $ / shares								$ 0.001	$ 0.001
Issuance of common stock								$ 5,750	$ 1,692	$ 18
Number of common stock issued | shares								5,749,586	1,692,172	17,951
Common Stock, shares issued | shares								7,566,333	1,716,957
Shares issued under DRP offering								$ 100	$ 6
Estimated value per common share | $ / shares		11.56
Class T Common stock | Distribution Reinvestment Plan
Organization and Nature of Operations [Line Items]
Estimated value per common share | $ / shares		$ 11.56
Selling price per share | $ / shares											$ 11.56
Private Offering
Organization and Nature of Operations [Line Items]
Common stock, shares authorized amount												$ 1,000,000	$ 109,500,000
Issuance of common stock					$ 7,800,000
Number of common stock issued | shares					830,000
Primary Offering | Maximum
Organization and Nature of Operations [Line Items]
Common stock, shares authorized amount				$ 1,000,000,000
Primary Offering | Class A Common stock
Organization and Nature of Operations [Line Items]
Common Stock, shares issued | shares								17,900,000
Gross proceeds from issuance of common stock								$ 193,000,000
Primary Offering | Class T Common stock
Organization and Nature of Operations [Line Items]
Common Stock, shares issued | shares								7,500,000
Gross proceeds from issuance of common stock								$ 79,000,000
Distribution Reinvestment Plan Offering | Class A Common stock
Organization and Nature of Operations [Line Items]
Common Stock, shares issued | shares								222,000
Gross proceeds from issuance of common stock								$ 2,600,000
Distribution Reinvestment Plan Offering | Class T Common stock
Organization and Nature of Operations [Line Items]
Common Stock, shares issued | shares								72,000
Gross proceeds from issuance of common stock								$ 800,000
The advisor
Organization and Nature of Operations [Line Items]
Advisor purchased a limited partnership interest in Operating Partnership							$ 201,000
Initial capital contribution						$ 1,000
SmartStop Asset Management
Organization and Nature of Operations [Line Items]
Percentage of non-voting equity interest								15.00%
Affiliate | The advisor
Organization and Nature of Operations [Line Items]
Percentage owned by affiliate in Advisor								2.50%
SmartStop Asset Management | The advisor
Organization and Nature of Operations [Line Items]
Economic Interests								97.50%
Percentage of voting membership interest								100.00%
SmartStop Asset Management | Strategic Storage Growth Property Management LLC
Organization and Nature of Operations [Line Items]
Percentage of voting membership interest								100.00%
SmartStop Self Storage, Inc.
Organization and Nature of Operations [Line Items]
Sale price per share | $ / shares			$ 13.75
Enterprise value on sale			$ 1,400,000,000
Strategic Storage Growth Operating Partnership
Organization and Nature of Operations [Line Items]
Percentage of limited partnership interests								99.90%
Preferred Investor | The advisor
Organization and Nature of Operations [Line Items]
Percentage of limited partnership interests owned by noncontrolling owners								0.10%

Summary of Significant Accoun31

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017USD ($)Investmentshares	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of preferred equity investment | Investment	1
Business acquisition, transaction costs	$ 3,100,000	$ 1,000,000	$ 1,100,000
Payments to acquire intangible assets	1,300,000	400,000
Impairment losses recognized	0	0	$ 0
Real estate classified as held for sale	0	0
Gross amount of lease intangibles	4,100,000	2,700,000
Accumulated amortization of lease intangibles	3,200,000	2,300,000
Estimated amortization expenses of intangible assets in 2018	800,000
Estimated amortization expenses of intangible assets in 2019	100,000
Estimated amortization expenses of intangible assets after year 2019	0
Debt issuance costs	$ 465,378	292,160
Maximum period for reimbursement of offering cost	60 days
Maximum offering cost rate	3.50%
Underwriting compensation	10.00%
Maximum percentage other non-accountable expenses	3.00%
Assets fair value measurements on recurring	$ 0	0
Liabilities fair value measurements on recurring	$ 0	0
Minimum percentage of ordinary taxable income to be distributed to stockholders	90.00%
Restricted cash	$ 0	$ 0
Distributions
Summary Of Significant Accounting Policies [Line Items]
Share issued under distribution reinvestment plan | shares	22,000	4,000
Redeemable common stock
Summary Of Significant Accounting Policies [Line Items]
Value of redemption request of shares	$ 211,000	$ 36,000
Primary Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of proceeds from sale of Class A and Class T shares	10.00%
Underwriting compensation	10.00%
Maximum percentage other non-accountable expenses	3.00%
Primary Offering Dealer Manager Agreement | Class T Common stock
Summary Of Significant Accounting Policies [Line Items]
Monthly stockholder servicing fee accrual description	1/365th of 1% of the purchase price per share
Revolving Financing
Summary Of Significant Accounting Policies [Line Items]
Debt issuance costs	$ 500,000	300,000
Non Revolving Financing
Summary Of Significant Accounting Policies [Line Items]
Debt issuance costs	$ 254,683	$ 200,000
Personal Property Assets | Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	3 years
Personal Property Assets | Maximum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	5 years

Estimated Useful Lives used to

Estimated Useful Lives used to Depreciate Real Property Assets (Detail)	12 Months Ended
	Dec. 31, 2017
Land
Property Plant And Equipment [Line Items]
Standard Depreciable Life	Not Depreciated
Buildings | Minimum
Property Plant And Equipment [Line Items]
Standard Depreciable Life	30 years
Buildings | Maximum
Property Plant And Equipment [Line Items]
Standard Depreciable Life	35 years
Site Improvements | Minimum
Property Plant And Equipment [Line Items]
Standard Depreciable Life	7 years
Site Improvements | Maximum
Property Plant And Equipment [Line Items]
Standard Depreciable Life	10 years

Summary of Activity in Real Est

Summary of Activity in Real Estate Facilities (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real estate facilities
Real estate facilities, beginning balance	$ 87,581,604	$ 60,329,399
Facility acquisitions	87,311,000	25,720,271
Finalized purchase price allocations related to fourth quarter 2015 acquisitions		563,811
Insured property damage		(510,872)
Impact of foreign exchange rate changes	270,585	(33,587)
Asset disposals	(133,985)
Improvements and additions	1,331,661	1,512,582
Real estate facilities, ending balance	176,360,865	87,581,604
Accumulated depreciation
Accumulated depreciation, beginning balance	(3,300,523)	(1,157,113)
Asset disposals	133,985
Depreciation expense	(3,886,241)	(2,143,410)
Accumulated depreciation, ending balance	$ (7,052,779)	$ (3,300,523)

Summary of Activity in Real E34

Summary of Activity in Real Estate Facilities (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2016USD ($)
San Antonio I
Real Estate Properties [Line Items]
Insurance deductible amount	$ 25,000

Summary of Purchase Price Alloc

Summary of Purchase Price Allocations for Acquisitions (Detail) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Real Estate Assets		$ 87,311,000	$ 25,720,271
Intangibles		1,339,000	443,773
Total	[1]	88,650,000	26,164,044
Debt Issued		0	13,003,000
Revenue	[2]	2,534,143	1,163,303
Property Operating Income (Loss)	[3]	$ 691,877	$ 346,827
Elk Grove | Illinois
Business Acquisition [Line Items]
Acquisition Date	[4]	Jan. 13, 2017
Real Estate Assets	[4]	$ 10,042,000
Intangibles	[4]	58,000
Total	[1],[4]	10,100,000
Debt Issued	[4]	0
Revenue	[2],[4]	400,996
Property Operating Income (Loss)	[3],[4],[5]	$ (304,960)
Garden Grove | California
Business Acquisition [Line Items]
Acquisition Date	[6]	Mar. 16, 2017
Real Estate Assets	[6]	$ 18,400,000
Intangibles	[6]	0
Total	[1],[6]	18,400,000
Debt Issued	[6]	0
Revenue	[2],[6]	320,280
Property Operating Income (Loss)	[3],[5],[6]	$ (77,192)
Asheville II | NC
Business Acquisition [Line Items]
Acquisition Date		May 11, 2017
Real Estate Assets		$ 4,693,406
Intangibles		250,000
Total	[1]	4,943,406
Debt Issued		0
Revenue	[2]	312,246
Property Operating Income (Loss)	[3]	$ 173,997
Asheville III | NC
Business Acquisition [Line Items]
Acquisition Date		May 11, 2017
Real Estate Assets		$ 5,026,594
Intangibles		280,000
Total	[1]	5,306,594
Debt Issued		0
Revenue	[2]	320,099
Property Operating Income (Loss)	[3]	$ 178,946
Sarasota | Florida
Business Acquisition [Line Items]
Acquisition Date	[7]	May 23, 2017
Real Estate Assets	[7]	$ 6,700,000
Intangibles	[7]	0
Total	[1],[7]	6,700,000
Debt Issued	[7]	0
Revenue	[2],[7]	85,861
Property Operating Income (Loss)	[3],[5],[7]	$ (73,168)
Mount Pleasant | South Carolina
Business Acquisition [Line Items]
Acquisition Date	[8]	Jul. 17, 2017
Real Estate Assets	[8]	$ 5,675,000
Intangibles	[8]	25,000
Total	[1],[8]	5,700,000
Debt Issued	[8]	0
Revenue	[2],[8]	89,353
Property Operating Income (Loss)	[3],[5],[8]	$ (38,119)
Nantucket | Massachusetts
Business Acquisition [Line Items]
Acquisition Date		Aug. 22, 2017
Real Estate Assets		$ 36,774,000
Intangibles		726,000
Total	[1]	37,500,000
Debt Issued		0
Revenue	[2]	1,005,308
Property Operating Income (Loss)	[3]	$ 832,373
San Antonio II | TX
Business Acquisition [Line Items]
Acquisition Date			Jan. 6, 2016
Real Estate Assets			$ 11,659,852
Intangibles			443,773
Total	[1]		12,103,625
Debt Issued			7,950,000
Revenue	[2]		995,515
Property Operating Income (Loss)	[3]		$ 334,383
Stoney Creek - TOR | CAN
Business Acquisition [Line Items]
Acquisition Date	[9]		Feb. 11, 2016
Real Estate Assets	[9]		$ 1,516,032
Intangibles	[9]		0
Total	[1],[9]		1,516,032
Debt Issued	[9]		0
Revenue	[2],[9]		0
Property Operating Income (Loss)	[3],[9]		$ 0
Torbarrie - TOR | CAN
Business Acquisition [Line Items]
Acquisition Date	[9]		May 17, 2016
Real Estate Assets	[9]		$ 2,321,580
Intangibles	[9]		0
Total	[1],[9]		2,321,580
Debt Issued	[9]		0
Revenue	[2],[9]		0
Property Operating Income (Loss)	[3],[9]		$ 0
Baseline | AZ
Business Acquisition [Line Items]
Acquisition Date	[10]		May 26, 2016
Real Estate Assets	[10]		$ 7,222,807
Intangibles	[10]		0
Total	[1],[10]		7,222,807
Debt Issued	[10]		5,053,000
Revenue	[2],[10]		167,788
Property Operating Income (Loss)	[3],[10]		$ 12,444
Asheville I | NC
Business Acquisition [Line Items]
Acquisition Date	[9]		Dec. 30, 2016
Real Estate Assets	[9]		$ 3,000,000
Intangibles	[9]		0
Total	[1],[9]		3,000,000
Debt Issued	[9]		0
Revenue	[2],[9]		0
Property Operating Income (Loss)	[3],[9]		$ 0
[1]	The allocations noted above are based on a determination of the fair value of the total consideration provided and represent cash paid for the transaction.
[2]	The operating results of the facilities acquired above have been included in our consolidated statements of operations since their respective acquisition date.
[3]	Property operating income (loss) excludes corporate general and administrative expenses, asset management fees, interest expense, depreciation, amortization, acquisition expenses and costs incurred in connection with the property management changes.
[4]	We acquired the Elk Grove Property, a lease-up property, with initial occupancy of approximately 32% (unaudited). The property’s occupancy has increased to approximately 60% (unaudited) as of December 31, 2017.
[5]	These are all lease-up properties and we believe that in the future, these properties will provide additional operating income and cash flows as they stabilize. However, given the lease-up nature of such properties, they initially have a negative impact on our results of operations until occupancy and rates stabilize.
[6]	We acquired the Garden Grove Property, a lease-up property, with initial occupancy of approximately 9% (unaudited). The property’s occupancy has increased to approximately 57% (unaudited) as of December 31, 2017.
[7]	We acquired the Sarasota Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 53% (unaudited) as of December 31, 2017.
[8]	We acquired the Mount Pleasant Property, a lease-up property, with initial occupancy of 17% (unaudited). The property’s occupancy has increased to approximately 33% (unaudited) as of December 31, 2017.
[9]	Stoney Creek, Torbarrie and Asheville are self storage properties that are under construction.
[10]	We acquired the Baseline Property, a lease-up property, with initial occupancy of 0% (unaudited). The property’s occupancy has increased to approximately 88% (unaudited) as of December 31, 2017.

Summary of Purchase Price All36

Summary of Purchase Price Allocations for Acquisitions (Parenthetical) (Detail)	Dec. 31, 2017	Jul. 17, 2017	May 23, 2017	Mar. 16, 2017	Jan. 13, 2017	May 26, 2016
Elk Grove
Business Acquisition [Line Items]
Occupancy percentage	60.00%				32.00%
Garden Grove
Business Acquisition [Line Items]
Occupancy percentage	57.00%			9.00%
Sarasota
Business Acquisition [Line Items]
Occupancy percentage	53.00%		0.00%
Mount Pleasant
Business Acquisition [Line Items]
Occupancy percentage	33.00%	17.00%
Baseline
Business Acquisition [Line Items]
Occupancy percentage	88.00%					0.00%

Real Estate Facilities - Additi

Real Estate Facilities - Additional Information (Detail) - USD ($)	3 Months Ended							12 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Increase (decrease) in purchase price allocation, intangible assets								$ (58,000)	$ (500,000)
Increase (decrease) in depreciation expense related to purchase price allocation	$ (500)	$ (400)	$ (400)	$ (40,000)	$ (40,000)	$ (41,000)	$ (5,000)	(1,300)	(100,000)
Increase (decrease) in amortization expense related to purchase price allocation	$ 400	$ 18,000	$ 35,000	$ (64,000)	$ (64,000)	$ (76,000)	$ (8,000)	(53,000)	(200,000)
Acquisition fees incurred to the advisor								1,600,000	500,000
Buildings
Business Acquisition [Line Items]
Increase (decrease) in purchase price allocation, property, plant and equipment								(75,000)	(800,000)
Land
Business Acquisition [Line Items]
Increase (decrease) in purchase price allocation, property, plant and equipment								20,000	2,800,000
Site Improvements
Business Acquisition [Line Items]
Increase (decrease) in purchase price allocation, property, plant and equipment								$ (3,000)	$ (1,500,000)

Summary of Consolidated Results

Summary of Consolidated Results of Operations on Pro Forma Basis (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition Pro Forma Information [Abstract]
Pro forma revenue	$ 16,045,243	$ 13,076,995
Pro forma operating expenses	(16,974,268)	(14,384,811)
Pro forma net loss attributable to common shareholders	$ (1,073,269)	$ (4,972,326)

Pro Forma Financial Informati39

Pro Forma Financial Information - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition Pro Forma Information [Abstract]
Pro forma acquisition related expenses	$ 2.3	$ 0.7

Secured Debt - Additional Infor

Secured Debt - Additional Information (Detail) $ in Millions	Dec. 31, 2017USD ($)	May 03, 2017CAD ($)	Nov. 03, 2016CAD ($)	May 26, 2016USD ($)	Jul. 31, 2014Property	Dec. 31, 2017USD ($)Property	Dec. 20, 2017USD ($)	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Line of credit facility, description						The KeyBank Facility accrued interest at the Borrower’s option of either (i) LIBOR plus 325 basis points, or (ii) Base Rate plus 225 basis points. Base Rate was the greater of (i) Agent Prime or (ii) the Fed Funds rate plus 0.50%. Additionally, an unused line fee of 25 basis points was assessed on the average daily unused amount of the maximum potential amount we may borrow.
Secured debt	$ 5,594,779					$ 5,594,779		$ 12,509,308
Torbarrie Property
Debt Instrument [Line Items]
Secured debt	$ 0					$ 0
Torbarrie Property | Toronto, Canada
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						1.95%
Line of credit facility interest rate	4.65%					4.65%
Maturity date						Sep. 1, 2021
Maximum borrowing amount under the loan			$ 10.3
Debt instrument maturity date						The Torbarrie Loan has a maturity date of September 1, 2021. Payments due under the Torbarrie Loan are initially interest-only and due in arrears on the first day of each month.
Debt service coverage ratio			1.10%
Amortization period			25 years
Stoney Creek Property
Debt Instrument [Line Items]
Amounts drawn	$ 800,000					$ 800,000
Stoney Creek Property | Toronto, Canada
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						1.95%
Line of credit facility interest rate	4.65%					4.65%
Maturity date						Oct. 1, 2021
Maximum borrowing amount under the loan		$ 7.8
Debt instrument maturity date						The Stoney Creek Loan has a maturity date of October 1, 2021. Payments due under the Stoney Creek Loan are initially interest-only and due in arrears on the first day of each month.
Debt service coverage ratio		1.10%
Amortization period		25 years
Baseline Loan
Debt Instrument [Line Items]
Line of credit facility interest rate	4.10%					4.10%
Secured debt				$ 5,100,000
Maturity date						May 26, 2019
Baseline Loan | Maximum
Debt Instrument [Line Items]
Loan extension period						3 years
Baseline Loan | Minimum
Debt Instrument [Line Items]
Line of credit facility interest rate				3.25%
LIBOR | Baseline Loan
Debt Instrument [Line Items]
Line of credit facility applicable interest rate				2.75%		275.00%
Royal Bank of Canada Prime Rate | Torbarrie Property | Toronto, Canada
Debt Instrument [Line Items]
Debt instrument prime rate	3.20%					3.20%
Royal Bank of Canada Prime Rate | Stoney Creek Property | Toronto, Canada
Debt Instrument [Line Items]
Debt instrument prime rate	3.20%					3.20%
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving loan maturity date					Jul. 31, 2017	Dec. 31, 2017
Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Line of credit facility applicable interest rate					325.00%
Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Line of credit facility applicable interest rate					225.00%
Revolving Credit Facility | Fed Funds Rate Plus
Debt Instrument [Line Items]
Line of credit facility applicable interest rate					0.50%
Revolving Credit Facility | Unused Fee
Debt Instrument [Line Items]
Line of credit facility applicable interest rate					25.00%
Revolving Credit Facility | First Mortgage Liens
Debt Instrument [Line Items]
Number of mortgaged properties | Property					13
Amended Revolving Credit Facility
Debt Instrument [Line Items]
Revolving loan maturity date	Dec. 20, 2018
Line of credit facility, description						The Amended KeyBank Facility bears interest at the Borrower’s option of either (i) LIBOR plus 225 basis points, or (ii) Base Rate plus 125 basis points. Base Rate is the greater of (i) Agent Prime or (ii) the Fed Funds rate plus 0.50%. Additionally, an unused line fee of 20 or 25 basis points is assessed on the average daily unused amount of the maximum potential amount we may borrow if the unused maximum potential amount is greater than or equal to 50% or less than 50%, respectively. As of December 31, 2017, the interest rate was approximately 3.61% which was based on LIBOR plus 225 basis points
Line of credit facility, term of extension options	1 year
Maximum borrowings under credit facility							$ 50,000,000
Line of credit facility interest-only period						1 year
Line of credit facility interest rate	3.61%					3.61%
Percent of collateral properties used for aggregate borrowing capacity						45.00%
Minimum pool debt yield ratio						12.00%
Percentage of net equity						85.00%
Minimum fixed charge ratio						150.00%
Minimum liquidity amount						$ 3,000,000
Rate of indebtedness	30.00%					30.00%
Maximum fixed charge ratio						350.00%
Percentage of required loan to value ratio						45.00%
Secured debt	$ 0					$ 0
Amended Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Total leverage ratio	40.00%					40.00%
Amended Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Total leverage ratio	25.00%					25.00%
Amended Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						2.25%
Amended Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						1.25%
Amended Revolving Credit Facility | Fed Funds Rate Plus
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						0.50%
Amended Revolving Credit Facility | Unused Fee | Unused Maximum Potential Amount Greater Than or Equal to 50%
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						0.20%
Amended Revolving Credit Facility | Unused Fee | Unused Maximum Potential Amount Less Than 50%
Debt Instrument [Line Items]
Line of credit facility applicable interest rate						0.25%
Amended Revolving Credit Facility | First Mortgage Liens
Debt Instrument [Line Items]
Number of mortgaged properties | Property						14

Future Principal Payment Requir

Future Principal Payment Requirements on Outstanding Secured Debt (Detail) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Long Term Debt Maturities Repayments Of Principal [Line Items]
2,018	$ 0
2,019	5,053,000
2,020	0
2,021	796,462
2,022	0
2023 and thereafter	0
Total payments	5,849,462
Non-revolving debt issuance costs, net	(465,378)	$ (292,160)
Total	5,594,779	12,509,308
Non Revolving Financing
Long Term Debt Maturities Repayments Of Principal [Line Items]
Non-revolving debt issuance costs, net	$ (254,683)	$ (200,000)

Preferred Equity in the Opera42

Preferred Equity in the Operating Partnership - Additional Information (Detail) - USD ($)	Jan. 31, 2017	Nov. 03, 2016	Sep. 30, 2015	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jul. 31, 2014
Preferred Units [Line Items]
Redeemable preferred equity				$ 5,679,485	$ 5,679,485	$ 1,086,603
Preferred investor received							700,000	700,000
Distributions payment to preferred unitholders in our Operating Partnership		$ 0				1,500,000
Distribution description					The holder of Preferred Units was entitled to receive current distributions (the “Current Distributions”) at a rate of one-month LIBOR plus 6.5% per annum on the Liquidation Amount, payable monthly and calculated on an actual/360 basis. In addition to the Current Distributions, our Operating Partnership had the obligation to elect either to (A) pay the holder of the Preferred Units additional distributions monthly in an amount that would accrue at the rate of: (i) 4.35% until January 31, 2017; and (ii) thereafter, 6.35% or (B) defer the additional distributions in an amount that would accrue monthly at the rate of (i) for the period until January 31, 2017, LIBOR plus 10.85% and (ii) thereafter, LIBOR plus 12.85% (the “Deferred Distributions”).
Additional Distributions
Preferred Units [Line Items]
Distribution rate	4.35%
Distribution rate, thereafter				6.35%
LIBOR | Current Distributions
Preferred Units [Line Items]
Distribution rate					6.50%
Distribution rate description					one-month LIBOR plus 6.5%
LIBOR | Deferred Distributions
Preferred Units [Line Items]
Distribution rate					10.85%
Distribution rate, thereafter					12.85%
Distribution rate description					LIBOR plus 10.85%
Distribution rate thereafter, description					LIBOR plus 12.85%
Preferred Equity in our Operating Partnership
Preferred Units [Line Items]
Redeemed liquidation amount of preferred units in operating partnership		$ 0	$ 1,500,000			$ 15,961,576	$ 1,500,000
Preferred Investor
Preferred Units [Line Items]
Preferred investor investment in operating partnership							$ 17,500,000	$ 17,500,000
Series A Cumulative Redeemable Preferred Units | Preferred Investor
Preferred Units [Line Items]
Liquidation preference									$ 25
Maximum | Series A Cumulative Redeemable Preferred Units | Preferred Investor
Preferred Units [Line Items]
Preferred investor received									724,000
Maximum | Unit Purchase Agreement | Preferred Investor
Preferred Units [Line Items]
Redeemable preferred equity									$ 18,100,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	Oct. 01, 2017	Dec. 31, 2017	Sep. 30, 2017
Related Party Transaction [Line Items]
Maximum period for reimbursement of offering cost		60 days
Maximum offering cost rate		3.50%
Reimbursement of Organization and Offering Costs		$ 0
Gross proceeds from Public Offering, threshold percentage of expenses for reimbursement		15.00%
Monthly asset management fee		0.04167%
Monthly asset management fee one twelfth of less than one percentage of asset value payable		One-twelfth of 0.5%
Disposition fees percentage of sale price of property		1.00%
Operating expenses reimbursement percentage of average investment in assets		2.00%
Operating expenses reimbursement percentage of net income		25.00%
Operating expenses exceed limitation		12 months
Maximum days for disclosure fact		60 days
Underwriting compensation		10.00%
Maximum percentage other non-accountable expenses		3.00%
Amended management agreement date		Oct. 1, 2017
Percentage of construction management fee	5.00%
Property management capital improvement work in excess	$ 10,000
Property management one time start-up fee	$ 3,750
Percentage of net tenant insurance revenues received	50.00%
The advisor | Affiliates
Related Party Transaction [Line Items]
Percentage owned by affiliate in Advisor		2.50%
SmartStop Asset Management
Related Party Transaction [Line Items]
Percentage of non-voting equity interest		15.00%
Property Manager
Related Party Transaction [Line Items]
Percentage of net tenant insurance revenues received	50.00%
Primary Offering Dealer Manager Agreement
Related Party Transaction [Line Items]
Percentage of proceeds from sale of Class A and Class T shares		10.00%
Underwriting compensation		10.00%
Maximum percentage other non-accountable expenses		3.00%
Primary Offering Dealer Manager Agreement | Class A Common stock
Related Party Transaction [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering		7.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering		3.00%
Primary Offering Dealer Manager Agreement | Class T Common stock
Related Party Transaction [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering		2.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering		3.00%
Monthly stockholder servicing fee accrual description		1/365th of 1% of the purchase price per share
Monthly stockholder servicing fee accrual percentage		0.00003%
Prior Arrangement Property Management Agreement
Related Party Transaction [Line Items]
Property management agreement period		in effect from October 1, 2015 through September 30, 2017
Term of property management agreement			3 years
Renewal term of property management agreement			1 year
Period of prior written notice for termination of property management agreement			90 days
Property Management agreement, termination description		The property management agreements had a three year term and automatically renewed for successive one year periods thereafter, unless we or our Property Manager provided prior written notice at least 90 days prior to the expiration of the term. In general, if we terminated a property management agreement without cause during the initial three year term, we would have been required to pay our Property Manager a termination fee equal to the Set-Up Amount, reduced by 1/36th of the Set-Up Amount for every full month of the term that had elapsed. After the end of the initial three year term, we could have terminated a property management agreement on 30 days prior written notice without payment of a termination fee. Our Property Manager could have terminated a property management agreement on 60 days prior written notice to us.
Notice period for property management agreement			30 days
Notice period for property management agreement by property manager			60 days
Sub Property Management Agreement
Related Party Transaction [Line Items]
Term of property management agreement	3 years		3 years
Renewal term of property management agreement	3 years		1 year
Period of prior written notice for termination of property management agreement	90 days		90 days
Property Management agreement, termination description		The sub-property management agreements between our Property Manager and Extra Space were substantially the same as the foregoing property management agreements. Under the sub-property management agreements, our Property Manager paid Extra Space a monthly management fee for each property equal to the greater of $2,500 or 6% of the gross revenues, plus reimbursement of Extra Space’s costs of managing the properties; provided, however that no management fee was due and payable to Extra Space for the months of January and July each year during the term. Extra Space had the exclusive right to offer tenant insurance to the tenants and was entitled to all of the benefits of such tenant insurance. The sub-property management agreements also had a three year term and automatically renewed for successive one year periods thereafter, unless our Property Manager or Extra Space provided prior written notice at least 90 days prior to the expiration of the term. In general, if our Property Manager terminated a sub-property management agreement without cause during the initial three year term, it would have been required to pay Extra Space a termination fee equal to the Set-Up Amount, reduced by 1/36th of the Set-Up Amount for every full month of the term that had elapsed. After the end of the initial three year term, our Property Manager could have terminated a sub-property management agreement on 30 days prior written notice without payment of a termination fee. Extra Space could have terminated a sub-property management agreement on 60 days prior written notice to our Property Manager.
Notice period for property management agreement	60 days		30 days
Notice period for property management agreement by property manager			60 days
Property management monthly management fee due and payable for January and July			$ 0
Property management termination effective period	Oct. 1, 2017
Property Management agreement, termination description		In connection with the termination of each sub-property management agreement, each corresponding property management agreement was amended effective as of October 1, 2017. Pursuant to the amended property management agreements, our Property Manager receives: (i) a monthly management fee for each property equal to the greater of $3,000 or 6% of the gross revenues from the properties plus reimbursement of the Property Manager’s costs of managing the properties and (ii) a construction management fee equal to 5% of the cost of construction or capital improvement work in excess of $10,000. In addition, we have agreed with our Property Manager or an affiliate to share equally in the net revenue attributable to the sale of tenant insurance at our properties. The property management agreements have a three year term and automatically renew for successive three year periods thereafter, unless we or our Property Manager provide prior written notice at least 90 days prior to the expiration of the term. After the end of the initial three year term, either party may terminate a property management agreement generally upon 60 days prior written notice. With respect to each new property we acquire for which we enter into a property management agreement with our Property Manager we will also pay our Property Manager a one-time start-up fee in the amount of $3,750.
Sub Property Management Agreement | Property Operating Expenses
Related Party Transaction [Line Items]
Aggregate costs incurred in connection with property management change		$ 200,000
Public Offering
Related Party Transaction [Line Items]
Rate of acquisition fees of purchase price of contract		1.75%
Maximum
Related Party Transaction [Line Items]
Financing fee		0.50%
Commission percentage of sale price of property		6.00%
Maximum | Prior Arrangement Property Management Agreement
Related Party Transaction [Line Items]
Signage and set-up costs associated with converting per property to extra space brand			25,000
Minimum | Prior Arrangement Property Management Agreement
Related Party Transaction [Line Items]
Property management monthly management fee for each property			$ 2,500
Property management monthly management fee, percentage on gross revenue			6.00%
Minimum | Sub Property Management Agreement
Related Party Transaction [Line Items]
Property management monthly management fee for each property	$ 3,000		$ 2,500
Property management monthly management fee, percentage on gross revenue	6.00%		6.00%

Summary of Related Party Costs

Summary of Related Party Costs (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Related party costs, Incurred	$ 20,195,665	$ 10,474,428
Related party costs, Paid	17,753,112	9,763,890
Related party costs, Payable	3,406,088	963,535
Operating expenses (including organizational costs)
Related Party Transaction [Line Items]
Related party costs, Incurred	770,835	545,696
Related party costs, Paid	723,044	561,480
Related party costs, Payable	57,706	9,915
Asset management fees
Related Party Transaction [Line Items]
Related party costs, Incurred	736,757	417,217
Related party costs, Paid	728,382	409,967
Related party costs, Payable	15,625	7,250
Property management fees
Related Party Transaction [Line Items]
Related party costs, Incurred	1,018,875	565,519
Related party costs, Paid	1,018,875	565,519
Related party costs, Payable	0	0
Acquisition costs
Related Party Transaction [Line Items]
Related party costs, Incurred	2,023,134	753,090
Related party costs, Paid	1,993,908	863,741
Related party costs, Payable	35,650	6,424
Debt Issuance Costs, Expensed
Related Party Transaction [Line Items]
Related party costs, Incurred	0	65,015
Related party costs, Paid	0	167,265
Related party costs, Payable	0	0
Debt Issuance Costs, Capitalized
Related Party Transaction [Line Items]
Related party costs, Incurred	3,983	0
Related party costs, Paid	3,983	0
Related party costs, Payable	0	0
Acquisition Costs, Capitalized
Related Party Transaction [Line Items]
Related party costs, Incurred	150,000	0
Related party costs, Paid	150,000	0
Related party costs, Payable	0	0
Selling Commissions, Additional Paid In Capital
Related Party Transaction [Line Items]
Related party costs, Incurred	9,205,704	5,348,277
Related party costs, Paid	9,205,704	5,348,277
Related party costs, Payable	0	0
Dealer Manager fees, Additional Paid In Capital
Related Party Transaction [Line Items]
Related party costs, Incurred	3,057,148	1,474,763
Related party costs, Paid	3,156,174	1,380,898
Related party costs, Payable	0	99,026
Stockholder Servicing Fees, Additional Paid In Capital
Related Party Transaction [Line Items]
Related party costs, Incurred	3,063,039	873,133
Related party costs, Paid	606,852	32,213
Related party costs, Payable	3,297,107	840,920
Offering costs, Additional Paid In Capital
Related Party Transaction [Line Items]
Related party costs, Incurred	166,190	431,718
Related party costs, Paid	166,190	434,530
Related party costs, Payable	$ 0	$ 0

Summary of Related Party Cost45

Summary of Related Party Costs (Parenthetical) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Related party costs, Paid	$ 17,753,112	$ 9,763,890
Property management fees
Related Party Transaction [Line Items]
Related party costs, Paid	1,018,875	565,519
Property management fees | Sub-property manager
Related Party Transaction [Line Items]
Related party costs, Paid	926,000	475,000
Selling Commissions, Additional Paid In Capital
Related Party Transaction [Line Items]
Related party costs, Paid	$ 9,205,704	$ 5,348,277
Selling Commissions, Additional Paid In Capital | Dealer Manager | Class T Common stock
Related Party Transaction [Line Items]
Monthly stockholder servicing fee accrual description	1/365th of 1% of the purchase price per share

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	May 05, 2017	Apr. 13, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Commitments And Contingencies [Line Items]
Issuance of shares pursuant to distribution reinvestment plan			$ 4,803,792	$ 1,112,347	$ 10,706
Share issued under distribution reinvestment plan			542,000
Issuance of shares pursuant to distribution reinvestment plan, value			$ 5,900,000
Distributions
Commitments And Contingencies [Line Items]
Issuance of shares pursuant to distribution reinvestment plan			$ 211,000	$ 36,000
Share issued under distribution reinvestment plan			22,000	4,000
Maximum
Commitments And Contingencies [Line Items]
Issuance of shares pursuant to distribution reinvestment plan	$ 115,600,000
Class A Common stock
Commitments And Contingencies [Line Items]
Estimated value per common share		$ 11.56
Issuance of shares pursuant to distribution reinvestment plan			$ 329	$ 105	$ 1
Share issued under distribution reinvestment plan			329,290	105,271	1,127
Class T Common stock
Commitments And Contingencies [Line Items]
Estimated value per common share		11.56
Issuance of shares pursuant to distribution reinvestment plan			$ 100	$ 6
Share issued under distribution reinvestment plan			99,790	6,115
Distribution Reinvestment Plan
Commitments And Contingencies [Line Items]
Amendment, suspension or termination period for distribution reinvestment Plan			10 days
Sales commissions, dealer manager fee, or stockholder servicing fee payable			$ 0
Distribution Reinvestment Plan | Class A Common stock
Commitments And Contingencies [Line Items]
Estimated value per common share		11.56
Share issued under distribution reinvestment plan			2.6
Distribution Reinvestment Plan | Class T Common stock
Commitments And Contingencies [Line Items]
Estimated value per common share		$ 11.56
Share issued under distribution reinvestment plan			0.8
Share Redemption Program
Commitments And Contingencies [Line Items]
Amendment, suspension or termination period of share			30 days
Maximum weighted average number of shares outstanding percentage			5.00%
Share Redemption Program | Minimum
Commitments And Contingencies [Line Items]
Shareholders share holding period			1 year
Operating Partnership Redemption Rights
Commitments And Contingencies [Line Items]
Number of shares issuable upon conversion of partnership units			1
Requisite minimum outstanding period for conversion eligibility			1 year

Stock for Redemptions Based on

Stock for Redemptions Based on Number of Years Stock Held (Detail)	12 Months Ended
	Dec. 31, 2017
Less than 1
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Redemption price	0.00%
1 or more but less than 3
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Redemption price	90.00%
3 or more but less than 4
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Redemption price	95.00%
4 or more
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Redemption price	100.00%

Potential Acquisitions - Additi

Potential Acquisitions - Additional Information (Detail) $ in Thousands	Nov. 09, 2017USD ($)Subsidiary	May 09, 2017USD ($)	Apr. 05, 2017USD ($)	Dec. 31, 2017
Riggs Road Preferred Equity
Potential Acquisitions [Line Items]
Number of subsidiaries made investment in preferred equity | Subsidiary	1
Preferred equity investment	$ 1,250
Preferred return paid quarterly	8.00%
Additional preferred return payable upon closing of property	4.00%
Riggs Road Property
Potential Acquisitions [Line Items]
Potential purchase price of property			$ 10,000
Purchase and sale agreement execution date				Apr. 5, 2017
Earnest money amount			$ 1,000
Deer Springs Property
Potential Acquisitions [Line Items]
Potential purchase price of property		$ 9,200
Purchase and sale agreement execution date				May 9, 2017
Earnest money amount		$ 500

Summary of Quarterly Financial

Summary of Quarterly Financial Information (Detail) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Quarterly Financial Information [Line Items]
Total revenues	$ 4,228,847	$ 3,804,702	$ 3,048,381	$ 2,704,431	$ 2,554,201	$ 2,437,082	$ 2,249,591	$ 2,072,885	$ 13,786,361	$ 9,313,759	$ 4,857,407
Total operating expenses	4,191,889	5,693,427	4,097,677	3,619,475	2,751,160	2,486,959	2,954,341	2,979,250	17,602,468	11,171,710	7,208,096
Operating income (loss)	36,958	(1,888,725)	(1,049,296)	(915,044)	(196,959)	(49,877)	(704,750)	(906,365)	(3,816,107)	(1,857,951)	(2,350,689)
Net income (loss)	55,270	(1,791,570)	(1,128,050)	(1,091,592)	(583,941)	(571,599)	(1,279,833)	(1,520,001)	(3,955,942)	(3,955,374)	(3,375,721)
Net income (loss) attributable to common stockholders	$ 55,455	$ (1,790,415)	$ (1,126,969)	$ (1,090,197)	$ (602,913)	$ (964,435)	$ (1,783,520)	$ (2,021,593)	$ (3,952,126)	$ (5,372,461)	$ (5,465,772)
Class A Common stock
Schedule Of Quarterly Financial Information [Line Items]
Net loss per share-basic and diluted	$ 0	$ (0.07)	$ (0.04)	$ (0.08)	$ (0.09)	$ (0.17)	$ (0.39)	$ (0.63)	$ (0.17)	$ (0.99)	$ (4.59)
Class T Common stock
Schedule Of Quarterly Financial Information [Line Items]
Net loss per share-basic and diluted	$ 0	$ (0.07)	$ (0.04)	$ (0.08)	$ (0.09)	$ (0.17)	$ (0.39)	$ (0.63)	$ (0.17)	$ (0.99)	$ (4.59)

Selected Quarterly Data - Addit

Selected Quarterly Data - Additional Information (Detail) - USD ($)	3 Months Ended							12 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Increase (decrease) in depreciation expense related to purchase price allocation	$ (500)	$ (400)	$ (400)	$ (40,000)	$ (40,000)	$ (41,000)	$ (5,000)	$ (1,300)	$ (100,000)
Increase (decrease) in amortization expense related to purchase price allocation	$ 400	$ 18,000	$ 35,000	$ (64,000)	$ (64,000)	$ (76,000)	$ (8,000)	$ (53,000)	$ (200,000)

Declaration of Distributions -

Declaration of Distributions - Additional Information (Detail)	Dec. 18, 2017$ / shares
Class A Common stock
Schedule Of Stockholders Equity [Line Items]
Common stock daily distribution declared	$ 0.0010958904
Cash distribution record date start	Jan. 1, 2018
Cash distribution record date end	Mar. 31, 2018
Class T Common stock
Schedule Of Stockholders Equity [Line Items]
Common stock daily distribution declared	$ 0.0010958904
Cash distribution record date start	Jan. 1, 2018
Cash distribution record date end	Mar. 31, 2018
Class T Common stock | Distribution After Stockholder Servicing Fee is Paid
Schedule Of Stockholders Equity [Line Items]
Common stock daily distribution payable	$ 0.0008

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Mar. 15, 2018	Mar. 14, 2018	Mar. 09, 2018	Mar. 06, 2018	Feb. 21, 2018	Feb. 01, 2018	Dec. 18, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 01, 2017
Subsequent Event [Line Items]
Acquisition fees incurred to the advisor								$ 1,600,000	$ 500,000
Gross proceeds from issuance of common stock								$ 171,980,653	$ 79,620,048	$ 18,961,011
Strategic Storage TI Services GT JV, LLC
Subsequent Event [Line Items]
Percentage to purchase triggering member ownership interest in joint venture at fair market value											50.00%
Percentage to sell triggering member ownership interest in joint venture at fair market value											50.00%
Threshold percentage to purchase triggering member ownership interest in joint venture at fair market value											95.00%
Strategic Storage TI Services GT JV, LLC | TRS
Subsequent Event [Line Items]
Percentage of ownership interest in joint venture											50.00%
Percentage of joint venture net revenues											50.00%
Strategic Storage TI Services GT JV, LLC | SmartStop TI GT, LLC
Subsequent Event [Line Items]
Percentage of ownership interest in joint venture											50.00%
Percentage of joint venture net revenues											50.00%
Class A Common stock
Subsequent Event [Line Items]
Common stock daily distribution declared							$ 0.0010958904
Cash distribution record date start							Jan. 1, 2018
Cash distribution record date end							Mar. 31, 2018
Number of common stock issued								10,060,184	5,804,542	1,887,318
Class T Common stock
Subsequent Event [Line Items]
Common stock daily distribution declared							$ 0.0010958904
Cash distribution record date start							Jan. 1, 2018
Cash distribution record date end							Mar. 31, 2018
Number of common stock issued								5,749,586	1,692,172	17,951
Distribution After Stockholder Servicing Fee is Paid | Class T Common stock
Subsequent Event [Line Items]
Common stock daily distribution payable							$ 0.0008
Subsequent Event | Distribution Reinvestment Plan
Subsequent Event [Line Items]
Number of common stock issued	400,000
Gross proceeds from issuance of common stock	$ 4,800,000
Subsequent Event | Class A Common stock
Subsequent Event [Line Items]
Common stock daily distribution declared		$ 0.0010958904
Date common stock daily distribution declared		Mar. 14, 2018
Cash distribution record date start		Apr. 1, 2018
Cash distribution record date end		Jun. 30, 2018
Subsequent Event | Class T Common stock
Subsequent Event [Line Items]
Common stock daily distribution declared		$ 0.0010958904
Date common stock daily distribution declared		Mar. 14, 2018
Cash distribution record date start		Apr. 1, 2018
Cash distribution record date end		Jun. 30, 2018
Subsequent Event | Distribution After Stockholder Servicing Fee is Paid | Class T Common stock
Subsequent Event [Line Items]
Common stock daily distribution payable		$ 0.0008
Subsequent Event | Pembroke Pines Property
Subsequent Event [Line Items]
Purchase price of property						$ 15,700,000
Acquisition fees incurred to the advisor						$ 300,000
Subsequent Event | Riverview Property
Subsequent Event [Line Items]
Purchase price of property					$ 7,800,000
Acquisition fees incurred to the advisor					$ 100,000
Subsequent Event | Eastlake Property
Subsequent Event [Line Items]
Purchase price of property			$ 17,000,000
Acquisition fees incurred to the advisor			$ 300,000
Subsequent Event | McKinney Property
Subsequent Event [Line Items]
Potential purchase price of property				$ 10,600,000

Schedule III - Real Estate an53

Schedule III - Real Estate and Accumulated Depreciation (Detail)	12 Months Ended
	Dec. 31, 2017USD ($)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 5,849,462
Initial Cost to Company, Land	40,743,616
Initial Cost to Company, Building and Improvements	132,417,715
Initial Cost to Company, Total	173,161,331
Cost Capitalized Subsequent to Acquisition	3,199,534
Gross Carrying Amount, Land	40,955,234
Gross Carrying Amount, Building and Improvements	135,405,631
Gross Carrying Amount, Total	176,360,865
Accumulated Depreciation	(7,052,779)
Fort Pierce | Florida
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	0
Initial Cost to Company, Land	700,000
Initial Cost to Company, Building and Improvements	3,060,000
Initial Cost to Company, Total	3,760,000
Cost Capitalized Subsequent to Acquisition	122,945
Gross Carrying Amount, Land	700,000
Gross Carrying Amount, Building and Improvements	3,182,945
Gross Carrying Amount, Total	3,882,945
Accumulated Depreciation	$ (388,608)
Date of Construction	2,008
Date Acquired	Jul. 31, 2014
Las Vegas I | Nevada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	2,180,000
Initial Cost to Company, Building and Improvements	6,865,000
Initial Cost to Company, Total	9,045,000
Cost Capitalized Subsequent to Acquisition	241,259
Gross Carrying Amount, Land	2,180,000
Gross Carrying Amount, Building and Improvements	7,106,259
Gross Carrying Amount, Total	9,286,259
Accumulated Depreciation	$ (523,570)
Date of Construction	1,999
Date Acquired	Jul. 31, 2014
Las Vegas II | Nevada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,380,000
Initial Cost to Company, Building and Improvements	4,460,000
Initial Cost to Company, Total	5,840,000
Cost Capitalized Subsequent to Acquisition	216,529
Gross Carrying Amount, Land	1,380,000
Gross Carrying Amount, Building and Improvements	4,676,529
Gross Carrying Amount, Total	6,056,529
Accumulated Depreciation	$ (859,444)
Date of Construction	1,996
Date Acquired	Sep. 29, 2014
Colorado Springs | Colorado
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,510,000
Initial Cost to Company, Building and Improvements	2,526,875
Initial Cost to Company, Total	4,036,875
Cost Capitalized Subsequent to Acquisition	435,279
Gross Carrying Amount, Land	1,510,000
Gross Carrying Amount, Building and Improvements	2,962,154
Gross Carrying Amount, Total	4,472,154
Accumulated Depreciation	$ (250,968)
Date of Construction	1,983
Date Acquired	Jan. 29, 2015
Riverside | California
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	220,000
Initial Cost to Company, Building and Improvements	1,766,875
Initial Cost to Company, Total	1,986,875
Cost Capitalized Subsequent to Acquisition	378,839
Gross Carrying Amount, Land	220,000
Gross Carrying Amount, Building and Improvements	2,145,714
Gross Carrying Amount, Total	2,365,714
Accumulated Depreciation	$ (178,065)
Date of Construction	1,980
Date Acquired	Feb. 5, 2015
Stockton | California
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	150,000
Initial Cost to Company, Building and Improvements	1,356,875
Initial Cost to Company, Total	1,506,875
Cost Capitalized Subsequent to Acquisition	140,477
Gross Carrying Amount, Land	150,000
Gross Carrying Amount, Building and Improvements	1,497,352
Gross Carrying Amount, Total	1,647,352
Accumulated Depreciation	$ (341,641)
Date of Construction	1,984
Date Acquired	Feb. 5, 2015
Azusa | California
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,260,000
Initial Cost to Company, Building and Improvements	2,716,875
Initial Cost to Company, Total	3,976,875
Cost Capitalized Subsequent to Acquisition	256,206
Gross Carrying Amount, Land	1,260,000
Gross Carrying Amount, Building and Improvements	2,973,081
Gross Carrying Amount, Total	4,233,081
Accumulated Depreciation	$ (360,664)
Date of Construction	1,986
Date Acquired	Feb. 5, 2015
Romeoville | Illinois
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	480,000
Initial Cost to Company, Building and Improvements	2,766,875
Initial Cost to Company, Total	3,246,875
Cost Capitalized Subsequent to Acquisition	343,194
Gross Carrying Amount, Land	480,000
Gross Carrying Amount, Building and Improvements	3,110,069
Gross Carrying Amount, Total	3,590,069
Accumulated Depreciation	$ (356,202)
Date of Construction	1,986
Date Acquired	Feb. 5, 2015
Elgin | Illinois
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	110,000
Initial Cost to Company, Building and Improvements	546,875
Initial Cost to Company, Total	656,875
Cost Capitalized Subsequent to Acquisition	348,381
Gross Carrying Amount, Land	110,000
Gross Carrying Amount, Building and Improvements	895,256
Gross Carrying Amount, Total	1,005,256
Accumulated Depreciation	$ (111,401)
Date of Construction	1,986
Date Acquired	Feb. 5, 2015
San Antonio I | TX
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	4,069,211
Initial Cost to Company, Building and Improvements	7,122,002
Initial Cost to Company, Total	11,191,213
Cost Capitalized Subsequent to Acquisition	15,392
Gross Carrying Amount, Land	4,069,212
Gross Carrying Amount, Building and Improvements	7,137,393
Gross Carrying Amount, Total	11,206,605
Accumulated Depreciation	$ (480,855)
Date of Construction	1,998
Date Acquired	Dec. 17, 2015
Kingwood | TX
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	3,622,192
Initial Cost to Company, Building and Improvements	4,162,277
Initial Cost to Company, Total	7,784,469
Cost Capitalized Subsequent to Acquisition	41,457
Gross Carrying Amount, Land	3,622,192
Gross Carrying Amount, Building and Improvements	4,203,734
Gross Carrying Amount, Total	7,825,926
Accumulated Depreciation	$ (317,308)
Date of Construction	2,001
Date Acquired	Dec. 17, 2015
Aurora | Colorado
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,154,219
Initial Cost to Company, Building and Improvements	5,943,909
Initial Cost to Company, Total	7,098,128
Cost Capitalized Subsequent to Acquisition	41,192
Gross Carrying Amount, Land	1,154,219
Gross Carrying Amount, Building and Improvements	5,985,101
Gross Carrying Amount, Total	7,139,320
Accumulated Depreciation	$ (518,087)
Date of Construction	2,015
Date Acquired	Dec. 17, 2015
San Antonio Two [Member] | TX
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	2,406,214
Initial Cost to Company, Building and Improvements	9,253,638
Initial Cost to Company, Total	11,659,852
Cost Capitalized Subsequent to Acquisition	24,568
Gross Carrying Amount, Land	2,406,214
Gross Carrying Amount, Building and Improvements	9,278,206
Gross Carrying Amount, Total	11,684,420
Accumulated Depreciation	$ (616,761)
Date of Construction	2,004
Date Acquired	Jan. 6, 2016
Stoney Creek [Member] | Ontario, Canada [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 796,462
Initial Cost to Company, Land	1,516,032
Initial Cost to Company, Building and Improvements	0
Initial Cost to Company, Total	1,516,032
Cost Capitalized Subsequent to Acquisition	168,777
Gross Carrying Amount, Land	1,684,809
Gross Carrying Amount, Building and Improvements	0
Gross Carrying Amount, Total	1,684,809
Accumulated Depreciation	$ 0
Date Acquired	Feb. 11, 2016
Torbarrie - TOR | Ontario, Canada [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,422,904
Initial Cost to Company, Building and Improvements	898,676
Initial Cost to Company, Total	2,321,580
Cost Capitalized Subsequent to Acquisition	68,220
Gross Carrying Amount, Land	1,465,744
Gross Carrying Amount, Building and Improvements	924,056
Gross Carrying Amount, Total	2,389,800
Accumulated Depreciation	$ 0
Date of Construction	1,980
Date Acquired	May 17, 2016
Phoenix [Member] | AZ
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 5,053,000
Initial Cost to Company, Land	710,796
Initial Cost to Company, Building and Improvements	6,512,011
Initial Cost to Company, Total	7,222,807
Cost Capitalized Subsequent to Acquisition	26,983
Gross Carrying Amount, Land	710,796
Gross Carrying Amount, Building and Improvements	6,538,994
Gross Carrying Amount, Total	7,249,790
Accumulated Depreciation	$ (358,622)
Date of Construction	2,016
Date Acquired	May 26, 2016
Asheville I | NC
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,421,684
Initial Cost to Company, Building and Improvements	1,578,316
Initial Cost to Company, Total	3,000,000
Gross Carrying Amount, Land	1,421,684
Gross Carrying Amount, Building and Improvements	1,578,316
Gross Carrying Amount, Total	3,000,000
Accumulated Depreciation	$ 0
Date of Construction	1,982
Date Acquired	Dec. 30, 2016
Elk Grove | Illinois
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,383,000
Initial Cost to Company, Building and Improvements	8,659,000
Initial Cost to Company, Total	10,042,000
Cost Capitalized Subsequent to Acquisition	44,574
Gross Carrying Amount, Land	1,383,000
Gross Carrying Amount, Building and Improvements	8,703,574
Gross Carrying Amount, Total	10,086,574
Accumulated Depreciation	$ (296,688)
Date of Construction	2,016
Date Acquired	Jan. 13, 2017
Garden Grove | California
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	4,376,364
Initial Cost to Company, Building and Improvements	14,023,636
Initial Cost to Company, Total	18,400,000
Cost Capitalized Subsequent to Acquisition	175,331
Gross Carrying Amount, Land	4,376,364
Gross Carrying Amount, Building and Improvements	14,198,967
Gross Carrying Amount, Total	18,575,331
Accumulated Depreciation	$ (367,748)
Date of Construction	2,017
Date Acquired	Mar. 16, 2017
Asheville II | NC
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,720,000
Initial Cost to Company, Building and Improvements	2,973,406
Initial Cost to Company, Total	4,693,406
Cost Capitalized Subsequent to Acquisition	19,504
Gross Carrying Amount, Land	1,720,000
Gross Carrying Amount, Building and Improvements	2,992,910
Gross Carrying Amount, Total	4,712,910
Accumulated Depreciation	$ (112,166)
Date of Construction	1,992
Date Acquired	May 11, 2017
Asheville III | NC
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,930,000
Initial Cost to Company, Building and Improvements	3,096,594
Initial Cost to Company, Total	5,026,594
Cost Capitalized Subsequent to Acquisition	41,418
Gross Carrying Amount, Land	1,930,000
Gross Carrying Amount, Building and Improvements	3,138,012
Gross Carrying Amount, Total	5,068,012
Accumulated Depreciation	$ (88,343)
Date of Construction	1,994
Date Acquired	May 11, 2017
Sarasota | Florida
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	688,000
Initial Cost to Company, Building and Improvements	6,012,000
Initial Cost to Company, Total	6,700,000
Cost Capitalized Subsequent to Acquisition	25,985
Gross Carrying Amount, Land	688,000
Gross Carrying Amount, Building and Improvements	6,037,985
Gross Carrying Amount, Total	6,725,985
Accumulated Depreciation	$ (117,204)
Date of Construction	2,017
Date Acquired	May 23, 2017
Mount Pleasant | South Carolina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	1,015,000
Initial Cost to Company, Building and Improvements	4,660,000
Initial Cost to Company, Total	5,675,000
Cost Capitalized Subsequent to Acquisition	23,024
Gross Carrying Amount, Land	1,015,000
Gross Carrying Amount, Building and Improvements	4,683,024
Gross Carrying Amount, Total	5,698,024
Accumulated Depreciation	$ (66,991)
Date of Construction	2,016
Date Acquired	Jul. 17, 2017
Nantucket | Massachusetts
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	$ 0
Initial Cost to Company, Land	5,318,000
Initial Cost to Company, Building and Improvements	31,456,000
Initial Cost to Company, Total	36,774,000
Gross Carrying Amount, Land	5,318,000
Gross Carrying Amount, Building and Improvements	31,456,000
Gross Carrying Amount, Total	36,774,000
Accumulated Depreciation	$ (341,443)
Date of Construction	2,002
Date Acquired	Aug. 22, 2017

Schedule III - Real Estate an54

Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail) - USD ($)	1 Months Ended
	Jan. 31, 2018	Dec. 31, 2017
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Aggregate cost of real estate for United States federal income tax purposes		$ 186,004,189
Subsequent Event | Arizona Property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Payment of mortgage debt	$ 5,053,000
Mortgage debt due date	2019-05

Schedule III - Activity in Real

Schedule III - Activity in Real Estate Facilities (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real estate facilities
Real estate facilities, beginning balance	$ 87,581,604	$ 60,329,399
Facility acquisitions	87,311,000	25,720,271
Impact of foreign exchange rate changes	270,585
Asset disposals	(133,985)
Improvements	1,331,661	1,512,582
Real estate facilities, ending balance	176,360,865	87,581,604
Accumulated depreciation
Accumulated depreciation, beginning balance	(3,300,523)	(1,157,113)
Asset disposals	133,985
Depreciation expense	(3,886,241)	(2,143,410)
Accumulated depreciation, ending balance	(7,052,779)	(3,300,523)
Construction in process
Balance at beginning of year	2,174,191
Additions	8,579,047
Balance at end of year	10,753,238	2,174,191
Real estate facilities, net	$ 180,061,324	$ 86,455,272