Supplemental Financial Information Three Months & Year Ended - PDF document

Supplemental Financial Information Three Months & Year Ended December 31, 2016

Forward Looking Stateme Forward Looking Statement t Certain information set forth in this release contains “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements include statements concerning the benefits of store acquisitions, favorable market conditions, our outlook and estimates for the year and other statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans or intentions relating to acquisitions and other information that is not historical information. In some cases, forward-looking statements can be identified by terminology such as “believes,” “estimates,” “expects,” “may,” “will,” “should,” “anticipates,” or “intends,” or the negative of such terms or other comparable terminology, or by discussions of strategy. We may also make additional forward-looking statements from time to time. All such subsequent forward-looking statements, whether written or oral, by us or on our behalf, are also expressly qualified by these cautionary statements. There are a number of risks and uncertainties that could cause our actual results to differ materially from the forward-looking statements contained in or contemplated by this release. Any forward- looking statements should be considered in light of the risks referenced in the “Risk Factors” section included in our most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q. Such factors include, but are not limited to: • adverse changes in general economic conditions, the real estate industry and the markets in which we operate; • failure to close pending acquisitions on expected terms, or at all; • the effect of competition from new and existing stores or other storage alternatives, which could cause rents and occupancy rates to decline; • difficulties in our ability to evaluate, finance, complete and integrate acquisitions and developments successfully and to lease up those stores, which could adversely affect our profitability; • potential liability for uninsured losses and environmental contamination; • the impact of the regulatory environment as well as national, state and local laws and regulations, including, without limitation, those governing real estate investment trusts (“REITs”), tenant reinsurance and other aspects of our business, which could adversely affect our results; • disruptions in credit and financial markets and resulting difficulties in raising capital or obtaining credit at reasonable rates or at all, which could impede our ability to grow; • the failure to effectively manage our growth and expansion into new markets or to successfully operate acquired stores and operations; • increased interest rates and operating costs; • reductions in asset valuations and related impairment charges; • the failure of our joint venture partners to fulfill their obligations to us or their pursuit of actions that are inconsistent with our objectives; • the failure to maintain our REIT status for U.S. federal income tax purposes; • economic uncertainty due to the impact of war or terrorism, which could adversely affect our business plan; and • difficulties in our ability to attract and retain qualified personnel and management members. All forward-looking statements are based upon our current expectations and various assumptions. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them, but there can be no assurance that management’s expectations, beliefs and projections will result or be achieved. All forward- looking statements apply only as of the date made. We undertake no obligation to publicly update or revise forward- looking statements which may be made to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events.

Table of Conte Table of Contents ts Pag Page(s (s) Tit itle le 1-13 Press Release - Extra Space Storage Inc. Reports 2016 Fourth Quarter & Year-End Results 14 Key Highlights 15 Trailing Five Quarter Information 16 Summary Debt Maturity Schedule By Year for Consolidated Fixed- and Variable-Rate Debt 17 Detailed Debt Maturity Schedule and Interest Rates for Consolidated Fixed- and Variable-Rate Debt 18-19 Store Portfolio Reporting Information 20 Store Rental Activity 21 Same-Store Detail 22-23 MSA Performance Summary for Same-Store 24-25 MSA Performance Summary for All Stabilized Stores 26 Certificate of Occupancy Stores Acquisition Summary 27-28 Certificate of Occupancy / Development Stores Performance Summary 29 Reconciliation of Joint Venture Net Income to Equity in Earnings 30 Major Joint Ventures Descriptions 31 Wholly-Owned Store Data by State and Total Operated Store Data by State

Extra Space Storage Inc. PHONE (801) 365-4600 FAX (801) 365-4855 2795 East Cottonwood Parkway, Suite 300 Salt Lake City, Utah 84121 www.extraspace.com FOR IMMEDIATE RELEASE Extra Space Storage Inc. Reports 2016 Fourth Quarter and Year-End Results SALT LAKE CITY, February 21, 2017 — Extra Space Storage Inc. (NYSE: EXR) (the “Company”), a leading owner and operator of self-storage facilities in the United States, announced operating results for the three months and year ended December 31, 2016. Highlights for the three months ended December 31, 2016: • Achieved net income attributable to common stockholders of $0.65 per diluted share, representing an 828.6% increase compared to the same period in 2015. • Achieved funds from operations attributable to common stockholders (“FFO”) of $1.00 per diluted share. Excluding costs associated with acquisitions and non-cash interest, FFO as adjusted was $1.03 per diluted share, representing an 18.4% increase compared to the same period in 2015. • Increased same-store revenue by 5.2% and same-store net operating income (“NOI”) by 7.9% compared to the same period in 2015. • Reported same-store occupancy of 92.0% as of December 31, 2016, compared to 92.8% as of December 31, 2015. • Acquired 24 wholly-owned operating stores and three stores at completion of construction for a total purchase price of approximately $316.0 million. • Acquired two stores at completion of construction with joint venture partners for a total purchase price of approximately $19.0 million. • Paid a quarterly dividend of $0.78 per share. Highlights for the year ended December 31, 2016: • Achieved net income attributable to common stockholders of $2.91 per diluted share, representing an 86.5% increase compared to the same period in 2015. • Achieved FFO of $3.70 per diluted share. Excluding costs associated with acquisitions, non-cash interest and the loss related to settlement of a legal action, FFO as adjusted was $3.85 per diluted share, representing a 23.0% increase compared to the same period in 2015. • Increased same-store revenue by 6.9% and same-store NOI by 9.2% compared to the same period in 2015. • Acquired 91 wholly-owned operating stores and eight stores at completion of construction for a total purchase price of approximately $1.1 billion. • Acquired nine stores at completion of construction with joint venture partners for a total purchase price of approximately $150.6 million. Page 1

Joseph D. Margolis, CEO of Extra Space Storage Inc., commented: “2016 was another strong year for Extra Space. Same-store revenue and NOI growth for the year were among the highest in our history, and earnings and FFO per share increases were among the best of all public real estate companies. We continued to grow our national portfolio with over $1 billion in acquisitions and the addition of over 60 third-party managed stores. Industry fundamentals continue to be sound, and while growth rates have moderated from all-time highs, we anticipate solid revenue, NOI and FFO growth in 2017." Page 2