Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

Extra Space Management, Inc. 401(k) Plan

Salt Lake City, Utah

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (333-204010) of Extra Space Storage, Inc. of our report dated June 28, 2023, relating to the financial statements and supplemental schedule of Extra Space Management, Inc. 401(k) Plan which appear in this Form 11-K for the year ended December 31, 2022.

/s/ Tanner LLC

Salt Lake City, Utah

June 28, 2023