UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No.        )

Filed by the Registrant x

Filed by a Party other than the Registrant ¨

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Under Rule 14a-12

Empire State Realty Trust, Inc.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):
x	No fee required.
¨	Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
	(1)       Title of each class of securities to which transaction applies:
	(2)       Aggregate number of securities to which transaction applies:
	(3)       Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)       Proposed maximum aggregate value of transaction:
	(5)       Total fee paid:
¨	Fee paid previously with preliminary materials.
¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
	(1)       Amount Previously Paid:
	(2)       Form, Schedule or Registration Statement No.:
	(3)       Filing Party:
	(4)       Date Filed:

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on May 31, 2016.

	EMPIRE STATE REALTY TRUST, INC.		Meeting Information
			Meeting Type:         Annual Stockholders Meeting
			For holders as of:    March 24, 2016
			Date: May 31, 2016      Time: 11:00 AM, EDT
			Location:	The Roosevelt Hotel
				45 East 45th Street
				Second Floor New York, New York 10017
	EMPIRE STATE REALTY TRUST, INC. ONE GRAND CENTRAL PLACE 60 EAST 42ND STREET NEW YORK, NY 10165	You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these 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.
			See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —

How to Access the Proxy Materials

	Proxy Materials Available to VIEW or RECEIVE:
	NOTICE AND PROXY STATEMENT            ANNUAL REPORT How to View Online: Have the information that is printed in the box marked by the arrow  (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 (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 May 17, 2016 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 (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.

Voting Items

	The Board of Directors recommends you vote FOR the following:
	1.	Election of Directors
		01)	Anthony E. Malkin	05)	Steven J. Gilbert
		02)	William H. Berkman	06)	S. Michael Giliberto
		03)	Alice M. Connell	07)	James D. Robinson IV
		04)	Thomas J. DeRosa
	The Board of Directors recommends you vote FOR Proposal 2.
	2.	To approve, on a non-binding, advisory basis, the compensation of our named executive officers.
	The Board of Directors recommends you vote FOR Proposal 3.
	3.	To ratify the selection of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2016.
	NOTE: The proxies are also authorized to vote in their discretion upon such other matters as may properly be brought before the Annual Stockholders Meeting or any adjournments or postponements thereof.

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 31, 2016.

	EMPIRE STATE REALTY TRUST, INC.		Meeting Information
			Meeting Type:         Annual Meeting
			For holders as of:    March 24, 2016
			Date: May 31, 2016      Time: 11:00 AM, EDT
			Location:	The Roosevelt Hotel 45 East 45th Street Second Floor New York, New York 10017
		You are receiving this communication because you hold shares in the company named above.
		This is not a ballot. You cannot use this notice to vote these 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.
			See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —

How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:
NOTICE AND PROXY STATEMENT	ANNUAL REPORT
How to View Online:
Have the information that is printed in the box marked by the arrow (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 (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 May 17, 2016 to facilitate timely delivery.

— How To Vote —

Please Choose One of the Following Voting Methods

	Vote In Person: If you choose to vote these shares in person at the meeting, you must request a “legal proxy.” To do so, please follow the instructions at www.proxyvote.com or request a paper copy of the materials, which will contain the appropriate instructions. Many shareholder 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.
	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 (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 voting instruction form.

Voting Items

The Board of Directors recommends you vote FOR the following:
1.	Election of Directors
	01)   Anthony E. Malkin	05)   Steven J. Gilbert
	02)   William H. Berkman	06)   S. Michael Giliberto
	03)   Alice M. Connell	07)   James D. Robinson IV
	04)   Thomas J. DeRosa
The Board of Directors recommends you vote FOR the following proposals:
2.	To approve, on a non-binding, advisory basis, the compensation of our named executive officers.
3.	To ratify the selection of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2016.
NOTE: The proxies are also authorized to vote in their discretion upon such other matters as may properly be brought before the Annual Stockholders Meeting or any adjournments or postponements thereof.

Voting Instructions