UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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Terreno Realty Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to Be Held on May 1, 2018. Meeting Information TERRENO REALTY CORPORATION Meeting Type: Annual Meeting For holders as of: March 1, 2018 Date: May 1, 2018 Time: 8:00 AM Pacific Time Location: Terreno Realty Corporation 101 Montgomery Street Suite 200 San Francisco, CA 94104 You are receiving this communication because you hold shares in the company named above. TERRENO REALTY CORPORATION 101 MONTGOMERY STREET, SUITE 200 This is not a ballot. You cannot use this notice to vote these SAN FRANCISCO, CA 94104 shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. proxy See the materials reverse and side voting of this instructions. notice to obtain E38959-P02570

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENT 2017 ANNUAL REPORT, INCLUDING FORM 10-K How to View Online: Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 17, 2018 to facilitate timely delivery. How To Vote Please Choose One of the Following Voting Methods Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. E38960-P02570

Voting Items The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees: 1a. W. Blake Baird 1b. Michael A. Coke 1c. LeRoy E. Carlson 1d. Gabriela Franco Parcella 1e. Douglas M. Pasquale 1f. Dennis Polk The Board of Directors recommends you vote FOR the following proposals: 2. Adoption of a resolution to approve, on a non-binding advisory basis, the compensation of certain executives, as more fully described in the proxy statement. 3. Ratification of the appointment of Ernst & Young LLP as our independent registered certified public accounting firm for the 2018 fiscal year. NOTE: The proxies are also authorized to vote in their discretion upon such other business as may properly come before the annual meeting, including any adjournments or postponements of the meeting. E38961-P02570

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