SC TO-I

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

Tender Offer Statement Under Section 14(d)(1) or 13(e)(1)

of the Securities Exchange Act of 1934

Empire State Realty OP, L.P.

Empire State Realty Trust, Inc.

(Name of Subject Company (Issuer) and Filing Person (Offeror))

Series ES operating partnership units	292102100
Series 60 operating partnership units	292102209
Series 250 operating partnership units	292102308
Series PR operating partnership units	—
(Title of Class of Securities)	(CUSIP Number of Class of Securities)

Thomas N. Keltner, Jr.

Executive Vice President and General Counsel

Empire State Realty Trust, Inc.

One Grand Central Place
60 East 42^nd Street

New York, NY 10165

(212) 687-8700

(Name, Address and Telephone Number of Person Authorized

to Receive Notices and Communications on Behalf of Filing Persons)

Copy to:

Yoel Kranz

Ettore Santucci

Goodwin Procter LLP

The New York Times Building

620 Eighth Avenue

New York, NY 10018

(212) 813-8800

Calculation of Filing Fee

Transaction Valuation(1)	Amount of Filing Fee(2)
$ 248,850,000	$32,052

(1) Estimated solely for purpose of calculating the Filing Fee pursuant to Rule 0-11 under the Securities Exchange Act of 1934, as amended. The valuation is calculated based on the product of multiplying (a) 15,000,000, the number of operating partnership units of Empire State Realty OP, L.P. proposed to be exchanged, by (b) $16.59, which is the average of the high and low price for the Class A common stock of Empire State Realty Trust, Inc. (“ESRT”) on the New York Stock Exchange on May 23, 2014. Holders of operating partnership units may elect to have their units redeemed for cash equal to the value

	of the ESRT Class A common stock or, at the election of ESRT, for shares of ESRT Class A common stock.
(2)	The Amount of Filing Fee calculated in accordance with Rule 0-11(b) of the Securities Exchange Act of 1934, as amended, equals $128.80 for each $1,000,000 of the value of the transaction.

£ Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and date of its filing.

Amount Previously Paid: N/A	Filing Party: N/A
Form or Registration No.: N/A	Date Filed: N/A

£  Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

£	third-party tender offer subject to Rule 14d-1.
S	issuer tender offer subject to Rule 13e-4.
£	going-private transaction subject to Rule 13e-3.
£	amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer:  £

If applicable, check the appropriate box(es) below to designate the appropriate rule provision(s) relied upon:

£	Rule 13e-4(i) (Cross-Border Issuer Tender Offer).
£	Rule 14d-1(d) (Cross-Border Third-Party Tender Offer).

SCHEDULE TO

This Tender Offer Statement on Schedule TO (this “Tender Offer Statement”) relates to an offer (the “Exchange Offer”) by Empire State Realty OP, L.P., a Delaware limited partnership (“the “Company”) and its general partner, Empire State Realty Trust, Inc., a Maryland corporation (“ESRT”), to acquire up to 15,000,000 operating partnership units on a pro rata basis from all tendering holders of (i) Series ES operating partnership units (“Series ES OP Units”), (ii) Series 60 operating partnership units (“Series 60 OP Units”), (iii) Series 250 operating partnership units (“Series 250 OP Units”), and (iv) Series PR operating partnership units (“Series PR OP Units” and, together with Series ES OP Units, Series 60 OP Units and Series 250 OP Units, the “OP Units”), pursuant to the terms and subject to the conditions described in the offer to exchange, dated May 28, 2014 (the “Offer to Exchange”), filed as Exhibit (a)(1)(A) hereto and the related letter of transmittal for each series of OP Units (collectively, the “Letters of Transmittal”), filed as Exhibits (a)(1)(B)(i), (a)(1)(B)(ii), (a)(1)(B)(iii) and (a)(1)(B)(iv) hereto.

This Tender Offer Statement is intended to satisfy the reporting requirements of Rule 13e-4 under the Securities Exchange Act of 1934, as amended. The information contained in the Offer to Exchange and the related Letters of Transmittal is incorporated herein by reference in response to all of the items of this Schedule TO, as more particularly described below.

Item 1. Summary Term Sheet.

The information set forth under the heading “Summary Term Sheet” in the Offer to Exchange is incorporated by reference herein.

Item 2. Subject Company Information.

(a) Name and Address. The name of the subject companies and the address and telephone number of its principal executive offices are as follows:

Empire State Realty OP, L.P.	Empire State Realty Trust, Inc.
One Grand Central Place	One Grand Central Place
60 East 42nd Street	60 East 42nd Street
New York, NY 10165	New York, NY 10165
(212) 687-8700	(212) 687-8700

(b) Securities. The information set forth on the front cover page and under the section of the Offer to Exchange entitled “Summary Term Sheet” is incorporated herein by reference.

(c) Trading Market and Price. The information with respect to the OP Units is set forth in the Offer to Exchange under the heading “Market Price of and Distributions on the OP Units” is incorporated by reference herein.

Item 3. Identity and Background of Filing Person.

The filing persons are the Company and its general partner, Empire State Realty Trust, Inc. The business address and telephone number of the Company and its general partner are as set forth under Item 2(a) above and incorporated by reference herein.

Pursuant to Instruction C to Schedule TO, the following persons are the directors and/or executive officers of the Company’s general partner:

Name	Position
Anthony E. Malkin	Chairman of our Board of Directors, Chief Executive Officer and President
William H. Berkman	Director
Alice M. Connell	Director
Thomas J. DeRosa	Director
Steven J. Gilbert	Director

S. Michael Giliberto	Director
Lawrence E. Golub	Director
David A. Karp	Executive Vice President, Chief Financial Officer and Treasurer
Thomas P. Durels	Executive Vice President and Chief of Property Operations and Leasing
Thomas N. Keltner, Jr.	Executive Vice President, General Counsel and Secretary

The business address and telephone number of each of the above directors and executive officers is c/o Empire State Realty Trust, Inc., One Grand Central Place, 60 East 42^nd Street, New York, NY 10165, telephone number (212) 687-8700.

Item 4. Terms of the Transaction.

(a) Material Terms. The information set forth in the Offer to Exchange under the headings “Summary Term Sheet,” “Questions and Answers About the Exchange Offer,” “The Exchange Offer,” “Certain U.S. Federal Income Tax Considerations,” “Comparison of Rights Between the OP Units and Preferred Units” and “Description of the Partnership Agreement” is incorporated by reference herein.

(b) Purchases.  Certain OP Units that are the subject of the Exchange Offer are owned by officers, directors or affiliates of the Company, but we have been advised that none of these officers, directors or affiliates will tender any of their OP Units in the Exchange Offer. The information set forth in the Offer to Exchange under the heading “Interests of Directors and Officers” is incorporated by reference herein.

Item 5. Past Contacts, Transactions, Negotiations and Agreements.

(e) Agreements Involving the Subject Company’s Securities. The information set forth in the Offer to Exchange under the heading “Interests of Directors and Officers” and “Description of the Partnership Agreement” is incorporated by reference herein.

In addition, the information set forth under the heading “Compensation Discussion and Analysis,” “Information about Our Board of Directors and its Committees—Compensation of Directors” and “Certain Relationships and Related Transactions” in Empire State Realty Trust, Inc.’s Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 25, 2014, is incorporated herein by reference.

Item 6. Purposes of the Transaction and Plans or Proposals.

(a) Purposes. The information set forth in the Offer to Exchange under the heading “Questions and Answers about the Exchange Offer—What is the purpose of the Exchange Offer?” is incorporated by reference herein.

(b) Use of Securities Acquired. The OP Units acquired in the Exchange Offer will be cancelled. The information set forth in the Offer to Exchange under the heading “The Exchange Offer—Tender of OP Units; Acceptance of OP Units” is incorporated by reference herein.

(c) Plans. Not applicable.

Item 7. Source and Amount of Funds or Other Consideration.

(a) Source of Funds. The information set forth in the Offer to Exchange under the heading “The Exchange Offer—Source and Amount of Funds” is incorporated by reference herein.

(b) Conditions. The Exchange Offer is not conditioned upon the Company’s receipt of financing.

(d) Borrowed Funds. Not applicable.

Item 8. Interest in Securities of the Subject Company.

(a) Securities Ownership. The information set forth in the Offer to Exchange under the heading “Interests of Directors and Officers” is incorporated by reference herein.

(b) Securities Transactions. The information set forth in the Offer to Exchange under the heading “Interests of Directors and Officers” is incorporated by reference herein.

Item 9. Persons/Assets, Retained, Employed, Compensated or Used.

(a) The information set forth in the Offer to Exchange under the heading “The Exchange Offer—Other Terms; General” is incorporated by reference herein.

Item 10. Financial Statements.

(a) Financial Information

(1) The consolidated financial statements and other information set forth under (i) Part IV, Item 15 of ESRT’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013, as amended, and (ii) Part IV, Item 15 of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013, as amended, are, in each case, incorporated by reference herein and can also be accessed electronically on the SEC’s website at http://www.sec.gov.

(2) The consolidated financial statements and other information set forth under (i) Part I, Item 1 of ESRT’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, and (ii) Part I, Item 1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 are, in each case, incorporated by reference herein and can also be accessed electronically on the SEC’s website at http://www.sec.gov.

(3) The information set forth in the Offer to Exchange under the heading “Ratio of Combined Fixed Charges and Preference Distributions to Earnings” is incorporated by reference herein.

(4) At March 31, 2014, book value per share for shares of ESRT Class A common stock, par value $0.01 per share, was $3.99. At March 31, 2014, book value per OP Unit of the Company was $4.04.

(b) Pro Forma Information. Not applicable.

Item 11. Additional Information.

(a) Agreements, Regulatory Requirements and Legal Proceedings.

(1) The information set forth in the Offer to Exchange under the heading “Interests of Directors and Officers” is incorporated by reference herein. In addition, the information set forth under the heading “Compensation Discussion and Analysis,” “Information about Our Board of Directors and its Committees—Compensation of Directors” and “Certain Relationships and Related Transactions” in ESRT’s Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 25, 2014, is incorporated herein by reference.

(2) The information set forth in the Offer to Exchange under the heading “The Exchange Offer—Certain Legal and Regulatory Matters” is incorporated by reference herein.

(3) Not applicable.

(4) Not applicable.

(5) Not applicable.

(b) Other Material Information. Not applicable.

Item 12. Exhibits.

Exhibit No.	Description
(a)(1)(A)	Offer to Exchange, dated May 28, 2014.
(a)(1)(B)(i)	Letter of Transmittal to the holders of Series ES OP Units, dated May 28, 2014.

(a)(1)(B)(ii)	Letter of Transmittal to the holders of Series 60 OP Units, dated May 28, 2014.
(a)(1)(B)(iii)	Letter of Transmittal to the holders of Series 250 OP Units, dated May 28, 2014.
(a)(1)(B)(iv)	Letter of Transmittal to the holders of Series PR OP Units, dated May 28, 2014.
(a)(1)(C)	Form of Letter to Brokers, Dealers and Other Nominees.
(a)(1)(D)	Form of Letter to Clients for use by Brokers, Dealers and Other Nominees.
(a)(1)(E)	Form of Cover Letter to Beneficial Holders of OP Units.
(a)(1)(F)	Form of Instruction Booklet.
(a)(1)(G)	Form of Document Package Guide.
(a)(2)	Not applicable.
(a)(3)	Not applicable.
(a)(4)	Not applicable.
(a)(5)(A)	Press release of Empire State Realty Trust, Inc., dated May 28, 2014.
(a)(5)(B)	Transcript of recorded investor presentation by Anthony E. Malkin and Thomas N. Keltner, Jr., dated May 28, 2014.
(b)	Not applicable.
(d)(1)	Amended and Restated Agreement of Limited Partnership of Empire State Realty OP, L.P., dated October 1, 2013, incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(2)	Articles of Amendment and Restatement of Empire State Realty Trust, Inc., incorporated by reference to Exhibit 3.1 to Amendment No. 8 to the Registrant’s Form S-11 (Registration No. 333-179485), filed with the SEC on September 27, 2013.
(d)(3)	Bylaws of Empire State Realty Trust, Inc., incorporated by reference to Exhibit 3.2 to the Registrant’s Form S-11 (Registration No. 333-179485), filed with the SEC on February 13, 2012.
(d)(4)	Secured Revolving and Term Credit Facility dated October 7, 2013 among Empire State Realty OP, L.P., ESRT Empire State Building, L.L.C., Empire State Realty Trust, Inc., the subsidiaries of Empire State Realty OP, L.P. from time to time party thereto, Bank of America, N.A., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Goldman Sachs Bank USA and the other lenders party thereto, incorporated by reference to Exhibit 10.19 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(5)	Registration Rights Agreement among Empire State Realty Trust, Inc. and the persons named therein, dated October 7, 2013, incorporated by reference to Exhibit 10.2 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(6)	Empire State Realty Trust, Inc. Empire State Realty OP, L.P. 2013 Equity Incentive Plan, incorporated by reference to Exhibit 10.1 to the Registrant’s Form S-8, filed with the SEC on October 7, 2013.
(d)(7)	Form of Restricted Stock Agreement (Performance-Based), incorporated by reference to Exhibit 10.11 to the Registrant’s Form 10-K filed with the SEC on March 24, 2014.
(d)(8)	Form of Restricted Stock Agreement (Time-Based), incorporated by reference to Exhibit 10.11 to the Registrant’s Form 10-K filed with the SEC on March 24, 2014.
(d)(9)	Form of LTIP Agreement (Performance-Based), incorporated by reference to Exhibit 10.11 to the Registrant’s Form 10-K filed with the SEC on March 24, 2014.
(d)(10)	Form of LTIP Agreement (Time-Based), incorporated by reference to Exhibit 10.11 to the Registrant’s Form 10-K filed with the SEC on March 24, 2014.

(d)(11)	Tax Protection Agreement among Empire State Realty Trust, Inc., Empire State Realty OP, L.P., and the parties named therein, dated October 7, 2013, incorporated by reference to Exhibit 10.3 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(12)	Indemnification Agreement among Empire State Realty Trust, Inc. and Peter L. Malkin, dated October 7, 2013, incorporated by reference to Exhibit 10.4 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(13)	Indemnification Agreement among Empire State Realty Trust, Inc. and Anthony E. Malkin, dated October 7, 2013, incorporated by reference to Exhibit 10.5 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(14)	Indemnification Agreement among Empire State Realty Trust, Inc. and David A. Karp, dated October 7, 2013, incorporated by reference to Exhibit 10.6 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(15)	Indemnification Agreement among Empire State Realty Trust, Inc. and Thomas P. Durels, dated October 7, 2013, incorporated by reference to Exhibit 10.7 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(16)	Indemnification Agreement among Empire State Realty Trust, Inc. and Thomas N. Keltner, Jr., dated October 7, 2013, incorporated by reference to Exhibit 10.8 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(17)	Indemnification Agreement among Empire State Realty Trust, Inc. and William H. Berkman, dated October 7, 2013, incorporated by reference to Exhibit 10.9 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(18)	Indemnification Agreement among Empire State Realty Trust, Inc. and Alice M. Connell, dated October 7, 2013, incorporated by reference to Exhibit 10.10 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(19)	Indemnification Agreement among Empire State Realty Trust, Inc. and Thomas J. DeRosa, dated October 7, 2013, incorporated by reference to Exhibit 10.11 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(20)	Indemnification Agreement among Empire State Realty Trust, Inc. and Steven J. Gilbert, dated October 7, 2013, incorporated by reference to Exhibit 10.12 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(21)	Indemnification Agreement among Empire State Realty Trust, Inc. and S. Michael Giliberto, dated October 7, 2013, incorporated by reference to Exhibit 10.13 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(22)	Indemnification Agreement among Empire State Realty Trust, Inc. and Lawrence E. Golub, dated October 7, 2013, incorporated by reference to Exhibit 10.14 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(23)	Employment Agreement between Empire State Realty Trust, Inc. and Anthony E. Malkin, dated October 7, 2013, incorporated by reference to Exhibit 10.15 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(24)	Change in Control Severance Agreement between Empire State Realty Trust, Inc. and David A. Karp, dated October 7, 2013, incorporated by reference to Exhibit 10.16 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.

(d)(25)	Change in Control Severance Agreement between Empire State Realty Trust, Inc. and Thomas N. Keltner, Jr., dated October 7, 2013, incorporated by reference to Exhibit 10.17 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(d)(26)	Change in Control Severance Agreement between Empire State Realty Trust, Inc. and Thomas P. Durels, dated October 7, 2013, incorporated by reference to Exhibit 10.18 to the Registrant’s Form 10-Q filed with the SEC on November 12, 2013.
(g)	Not applicable.
(h)	Not applicable.

Item 13. Information Required by Schedule 13E-3

Not applicable.

SIGNATURE

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

	EMPIRE STATE REALTY OP, L.P.
	By:	Empire State Realty Trust, Inc., as general partner
Date: May 28, 2014	By:	/s/ Thomas N. Keltner, Jr.
	Name:	Thomas N. Keltner, Jr.
	Title:	Executive Vice President and General Counsel
	EMPIRE STATE REALTY TRUST, INC.
Date: May 28, 2014	By:	/s/ Thomas N. Keltner, Jr.
	Name:	Thomas N. Keltner, Jr.
	Title:	Executive Vice President and General Counsel

EX-99.(A)(1)(A)

Exhibit (a)(1)(A)

EMPIRE STATE REALTY OP, L.P.
OFFER TO EXCHANGE
PRIVATE PERPETUAL PREFERRED OPERATING PARTNERSHIP UNITS
FOR
SERIES ES OPERATING PARTNERSHIP UNITS
SERIES 60 OPERATING PARTNERSHIP UNITS
SERIES 250 OPERATING PARTNERSHIP UNITS
AND
SERIES PR OPERATING PARTNERSHIP UNITS

	CUSIP No.		Preferred Units Offered
Series ES OP Units (NYSE Arca: ESBA)		292102100		One unit per OP Unit
Series 60 OP Units (NYSE Arca: OGCP)		292102209		One unit per OP Unit
Series 250 OP Units (NYSE Arca: FISK)		292102308		One unit per OP Unit
Series PR OP Units		—		One unit per OP Unit

THE OFFER AND WITHDRAWAL RIGHTS EXPIRE
AT MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014
WE MAY EXTEND THE OFFER PERIOD AND WITHDRAWAL PERIOD AT ANY TIME

Empire State Realty OP, L.P. (the “Company,” “our,” “we” or “us”) is offering to exchange newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) for units of the Company’s outstanding common operating partnership units. Specifically, we are offering to exchange our Preferred Units, upon the terms and subject to the conditions set forth in this Offer to Exchange and in the related letters of transmittal (the “Exchange Offer”), for units of our outstanding (i) Series ES operating partnership units (“Series ES OP Units”), (ii) Series 60 operating partnership units (“Series 60 OP Units”), (iii) Series 250 operating partnership units (“Series 250 OP Units”), and (iv) Series PR operating partnership units (“Series PR OP Units” and, together with Series ES OP Units, Series 60 OP Units and Series 250 OP Units, the “OP Units”).

We are offering to acquire OP Units on a one-for-one basis in exchange for an equal number of Preferred Units. Each Preferred Unit will have a liquidation preference of $16.62, which was the closing price of the Class A common stock of our general partner, Empire State Realty Trust, Inc. (“ESRT”), on the New York Stock Exchange on May 23, 2014. We are offering to exchange a maximum of 15,000,000 Preferred Units in the Exchange Offer, meaning that we are offering to acquire a total of 15,000,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units.

An exchange of OP Units for Preferred Units in this Exchange Offer would increase the annual distribution for tendering holders from the current $0.34 per unit to $0.60 per unit, an increase of over 75%. For example, the current distribution rate on 10,000 OP Units is $3,400.00 per annum. A holder who exchanges 10,000 OP Units in the Exchange Offer would receive 10,000 Preferred Units, which would be entitled to distributions at a rate of $6,000.00 per annum. Preferred Units will rank senior to OP Units and to ESRT Class A and Class B common stock for purposes of distributions and upon liquidation. We believe that the exchange of OP Units for Preferred Units in the Exchange Offer will not cause a holder to recognize gain for U.S. federal income tax purposes. Holders of OP Units who tender their OP Units in the Exchange Offer will still receive distributions for all periods during which they held the OP Units.

The Exchange Offer is being made exclusively to existing holders of OP Units. We do not intend to make any public offering of Preferred Units.

An exchange of OP Units for Preferred Units may not be suitable for you. Unlike OP Units, the Preferred Units will not be convertible or exchangeable into or for units of any other class or series, or redeemable for any securities of our general partner. By exchanging an OP Unit for a Preferred Unit in the Exchange Offer, a holder would be exchanging a variable yield equity security for a fixed yield preference security, and it is possible that distributions on OP Units will in the future equal or exceed distributions on the Preferred Units. In addition, we did not consider the current yield of preferred securities of any other public REIT when setting the distribution rate for the Preferred Units. Other preferred securities can be purchased at significantly higher dividend yields. We have been advised that none of the directors, officers, or affiliates of our general partner, including members of the Malkin family, will tender any of their OP Units in the Exchange Offer.

If all conditions to the Exchange Offer are satisfied or waived, we will acquire OP Units on a pro rata basis from all tendering holders, disregarding fractions, according to the number of OP Units tendered by each holder. We currently anticipate the Exchange Offer closing date will occur on or before July 1, 2014, although the date is subject to change as described below.

This Offer to Exchange is first being mailed to holders of the OP Units on or around May 28, 2014.

The Information Agent for the Exchange Offer is:

MACKENZIE PARTNERS, INC.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

The date of this Offer to Exchange is May 28, 2014

The Exchange Offer will expire at midnight, New York City Time, on June 26, 2014, unless extended or terminated by us. The term “expiration date” means midnight, New York City Time, on June 26, 2014, unless we extend the period of time for which the Exchange Offer is open, in which case the term “expiration date” means the latest time and date on which the Exchange Offer, as so extended, expires.

On May 23, 2014, the last sales price quoted on the NYSE Arca, Inc. exchange (“NYSE Arca”) was $15.50 per unit for Series ES OP Units, $15.46 per unit for Series 60 OP Units and $15.58 per unit for Series 250 OP Units. Series PR OP Units are not listed on any exchange and are not publicly traded. On May 23, 2014, the last sales price quoted on the New York Stock Exchange for shares of the Class A common stock of ESRT was $16.62 per share. Currently, no market exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market.

See “Risk Factors” beginning on page 13 for a discussion of issues that you should consider with respect to the Exchange Offer.

You must make your own decision whether to tender OP Units in the Exchange Offer. Neither we nor any one of the information agent, the depositary, or any other person is making any recommendation as to whether or not you should tender your OP Units for exchange in the Exchange Offer.

We are making the Exchange Offer only to holders of OP Units in reliance upon the exemption from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), afforded by Section 3(a)(9) of the Securities Act. We will not pay any commission or other remuneration to any broker, dealer, salesman or other person for soliciting tenders of OP Units. Our officers, directors and employees may solicit tenders from holders of our OP Units and will answer inquiries concerning the Exchange Offer, but they will not receive additional compensation for soliciting tenders or answering any such inquiries.

The Exchange Offer has not been approved or disapproved by the Securities and Exchange Commission (the “SEC”), any state securities commission, or the similar commission or governmental agency of any foreign jurisdiction, nor has the SEC, any state securities commission, or the similar commission or governmental agency of any foreign jurisdiction determined whether the information in this Offer to Exchange is truthful or complete. Any representation to the contrary is a criminal offense.

TABLE OF CONTENTS

	Page
SUMMARY TERM SHEET		1
QUESTIONS AND ANSWERS ABOUT THE EXCHANGE OFFER		6
RISK FACTORS		13
STATEMENT REGARDING FORWARD-LOOKING INFORMATION		16
THE EXCHANGE OFFER		18
INTERESTS OF DIRECTORS AND OFFICERS		28
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS		29
MARKET PRICE OF AND DISTRIBUTIONS ON THE OP UNITS AND CLASS A COMMON SOCK		30
COMPARISON OF RIGHTS BETWEEN THE OP UNITS AND THE PREFERRED UNITS		32
DESCRIPTION OF THE PREFERRED UNITS		35
DESCRIPTION OF THE PARTNERSHIP AGREEMENT		39
DESCRIPTION OF ESRT COMMON STOCK		46
CERTAIN FEDERAL INCOME TAX CONSIDERATIONS		58
MISCELLANEOUS		65
CERTAIN SECURITIES LAWS CONSIDERATIONS		65
WHERE YOU CAN FIND MORE INFORMATION		65

SUMMARY TERM SHEET

The following is a summary of the terms of the Exchange Offer. Before you make any decision with respect to the Exchange Offer, we urge you to read carefully this entire Offer to Exchange, including the section entitled “Risk Factors,” the related letters of transmittal and the descriptions of OP Units and the other documents incorporated by reference into this Offer to Exchange. Our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q are available online at the SEC website (www.sec.gov) and our general partner’s website (www.empirestaterealtytrust.com), and are also available from us upon request. See “Where You Can Find More Information.” The following summary is qualified in its entirety by the more detailed information appearing elsewhere in this Offer to Exchange and the related letters of transmittal.

The Company	Empire State Realty OP, L.P., a Delaware limited partnership.
	Our general partner is Empire State Realty Trust, Inc., a Maryland corporation (“ESRT” or “our general partner”).
The OP Units Subject to the Exchange Offer

	Total Outstanding Units
Series ES OP Units		46,134,135
Series 60 OP Units		12,570,434
Series 250 OP Units		6,578,014
Series PR OP Units		83,674,709
Total		148,957,292

The Exchange Offer	We are offering to exchange up to 15,000,000 of our newly- issued Preferred Units on a one-for-one basis for up to 15,000,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units.
	The Preferred Units will have a liquidation preference of $16.62 per unit, which was the closing price of the ESRT Class A common stock on the New York Stock Exchange on May 23, 2014.
	If all conditions to the Exchange Offer are satisfied or waived, we will acquire OP Units on a pro rata basis from all tendering holders, disregarding fractions, according to the number of OP Units tendered by each holder.
	The Exchange Offer is being made exclusively to existing holders of OP Units. We do not intend to make any public offering of Preferred Units.
	See “The Exchange Offer—Terms of the Exchange Offer.”

1

Preferred Units	Holders of the Preferred Units will be entitled to receive cumulative preferential cash distributions of $0.60 per annum per unit when, as and if declared by the board of directors of our general partner out of legally available funds for such purpose. An exchange of OP Units for Preferred Units in this Exchange Offer would increase the annual distribution for tendering holders from the current $0.34 per unit to $0.60 per unit, an increase of over 75%. For example, the current distribution rate on 10,000 OP Units is $3,400.00 per annum. A holder who exchanges 10,000 OP Units in the Exchange Offer would receive 10,000 Preferred Units, which would be entitled to distributions of $6,000.00 per annum on a preferential basis.
	Distributions will be payable quarterly in arrears on the same day on which quarterly distributions on OP Units are paid, which is currently the last day of each of March, June, September and December (or, if not a business day, the next succeeding business day). Distributions on the Preferred Units will accrue whether or not we have earnings, whether or not there are funds legally available for the payment of such distributions, and whether or not distributions are declared. Distributions on the Preferred Units will begin to accrue from July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014).
	The Preferred Units will, with respect to distribution rights and rights upon voluntary or involuntary liquidation, dissolution or winding up of the Company, rank senior to all classes or series of our common units, including the OP Units, and to all classes or series of partnership units now or hereafter authorized, issued or outstanding, the terms of which specifically provide that such units rank junior to the Preferred Units. Holders of the Preferred Units will be entitled to a liquidation preference equivalent to $16.62 per Preferred Unit, plus an amount equal to any accrued and unpaid distributions (whether or not declared) up to, but excluding, the date of payment.
	Except in certain circumstances relating to the preservation of our general partner’s status as a REIT for United States federal income tax purposes, we may generally not redeem the Preferred Units. In addition, if in the future the Company or its general partner is party to certain fundamental capital transactions, such as a change of control, then the Company will have the right, at its option, to redeem the Preferred Units, in whole but not in part, for cash at a redemption price equal to 200% of their stated liquidation preference, plus all accrued and unpaid distributions (whether or not declared) thereon up to, but excluding the date fixed for redemption, without interest.
	The Preferred Units will not be convertible or exchangeable for or into units of any other class or series, or redeemable for securities of our general partner.

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	Holders of the Preferred Units will have voting rights in connection with amendments to our operating partnership agreement or the terms of the Preferred Units that materially and adversely affect the rights of the Preferred Units. Other than in these limited circumstances, holders of the Preferred Units will have no voting rights.
	Generally, Preferred Units will be freely transferable, and any transferee of such units will be admitted to the partnership with respect to such units. Transfers of Preferred Units will be effective as of the first day of the next succeeding fiscal quarter of the operating partnership. However, no market currently exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market.
	See “Description of the Partnership Agreement” and “Comparison of Rights Between the OP Units and the Preferred Units.”
No Recommendation	None of the directors, officers or employees of our general partner, the Information Agent or the Depositary is making a recommendation to you as to whether you should tender OP Units in the Exchange Offer. You must make your own investment decision regarding the Exchange Offer based upon your own assessment of the market value of the OP Units, your liquidity needs, your investment objectives and any other factors you deem relevant.
	An exchange of OP Units for Preferred Units in the Exchange Offer may not be suitable for you. The OP Units are common equity interests in the Company and are generally entitled to participate, pro rata with all other common equity holders, in the future operations and business results of the Company. Preferred Units, conversely, represent perpetual equity interests in us and will be entitled only to their stated distribution preference, irrespective of the size, growth or success of the Company. By exchanging your OP Units for Preferred Units, you will be exchanging the distributions and growth potential of the OP Units for the fixed distribution rights of the Preferred Units.
	While the distribution rate on the Preferred Units will initially exceed the distribution rate on the OP Units, there can be no guarantee that this will always be the case in the future. In addition, we did not consider the current yield of preferred securities of any other public REIT when setting the distribution rate for the Preferred Units. Other preferred securities can be purchased at significantly higher dividend yields.

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	We do not intend to apply to list the Preferred Units on any stock exchange or in any trading market. In addition, unlike the OP Units, the Preferred Units will not be convertible or exchangeable into or for units of any other class or series, or redeemable for any securities of our general partner. Since the Preferred Units will have no stated maturity date, you may be forced to hold your Preferred Units indefinitely and receive the stated distributions, when, as and if authorized by our general partner, with no guarantee as to ever receiving the liquidation preference.
	Pursuant to the terms of ESRT’s Articles of Amendment and Restatement, if you are a holder of ESRT Class B common stock, one share of your ESRT Class B common stock will automatically convert into one share of ESRT Class A common stock for every 49 OP Units that you exchange for Preferred Units in the Exchange Offer.
	You should consider carefully all of the information set forth in this Offer to Exchange and, in particular, you should evaluate the specific factors set forth under “Risk Factors” before deciding whether to participate in the Exchange Offer.
Minimum Conditions to the Exchange Offer	The Exchange Offer is conditioned upon, among other things, at least 1,200,000 OP Units having been validly tendered and not properly withdrawn prior to the expiration of the Exchange Offer.
	See “The Exchange Offer—Conditions of the Exchange Offer.”
Additional Conditions to Completion of the Exchange Offer	The completion of the Exchange Offer is subject to certain additional closing conditions. See “The Exchange Offer—Conditions of the Exchange Offer.”
Expiration of the Exchange Offer	The Exchange Offer for each series of OP Units will expire at midnight, New York City Time, on June 26, 2014, unless extended or earlier terminated with respect to all series of OP Units.
How to Tender Your OP Units	If your OP Units are held in your name in the record books of the Company, you must indicate on the enclosed letter of transmittal the number of OP Units you wish to tender and mail the completed and signed letter of transmittal and any other required documents in the envelope provided no later than the time the Exchange Offer expires.
	If your OP Units are held in street name (i.e., through a broker, dealer or other nominee), the OP Units can be tendered by your broker, dealer or other nominee through the Depository Trust Company (“DTC”) upon your request.
	If you have questions, please call the Information Agent at the toll-free number below. See “The Exchange Offer—Procedure for Tendering.”

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Withdrawal of Tendered OP Units	You may withdraw previously tendered OP Units at any time before the expiration of the Exchange Offer. Any OP Units not accepted will be credited back to the appropriate account promptly following the expiration or termination of the Exchange Offer. In addition, after the expiration of the Exchange Offer, you may withdraw any OP Units that you tendered that are not accepted by us within 40 business days after the commencement of the Exchange Offer.
	See “The Exchange Offer—Withdrawal of Tenders.”
Certain Federal Income Tax Considerations	See “Certain Federal Income Tax Considerations.”
Appraisal Rights	You do not have appraisal rights in connection with the Exchange Offer.
Information Agent	MacKenzie Partners, Inc.
Depositary	American Stock Transfer & Trust Company, LLC.
Additional Documentation; Further Information; Assistance	Any requests for assistance concerning the Exchange Offer may be directed to the Information Agent at the address set forth on the back cover of this Offer to Exchange or by telephone toll free at (888) 410-7850. Beneficial owners may also contact their broker, dealer or other nominee.
	Any requests for additional copies of this Offer to Exchange and the letters of transmittal may be directed to the Information Agent.

You should read this entire Offer to Exchange and the applicable letters of transmittal carefully before deciding whether or not to tender your OP Units. You should consult with your personal financial advisor or other legal, tax or investment professional(s) regarding your individual circumstances.

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QUESTIONS AND ANSWERS ABOUT THE EXCHANGE OFFER

The following are some questions regarding the Exchange Offer that you may have as a holder of the OP Units and the answers to those questions. We urge you to read carefully this entire Offer to Exchange, including the section entitled “Risk Factors,” the related letters of transmittal and the descriptions of the OP Units and the other documents incorporated by reference into this Offer to Exchange. See “Where You Can Find More Information.”

What is the purpose of the Exchange Offer?

Holders of our OP Units who rely on income generated by their investments have expressed a desire to obtain higher distributions from their investment in our Company. While holders may generally sell all or some of their OP Units for cash, or elect to have their OP Units redeemed for cash, at any time after October 2, 2014, these transactions are likely to be taxable to the transferring holder, which would reduce the reinvestable proceeds and lower the expected return.

An exchange of OP Units for Preferred Units, as we are offering in this Exchange Offer, affords an alternative to holders of our OP Units by providing an exchanging holder with a significant increase in distributions as compared to the current distributions on OP Units, in a transaction that we believe will not cause a holder to recognize gain for tax purposes. As more fully described below, an exchange of OP Units for Preferred Units in this Exchange Offer would increase the annual distribution for tendering holders from the current $0.34 per unit to $0.60 per unit, an increase of over 75%. For example, the current distribution rate on 10,000 OP Units is $3,400.00 per annum. A holder who exchanges 10,000 OP Units in the Exchange Offer would receive 10,000 Preferred Units, which would be entitled to distributions of $6,000.00 per annum on a preferential basis.

We believe the Exchange Offer will also provide benefits to the Company, including to those holders of OP Units who do not exchange all of their units in the Exchange Offer. The Exchange Offer will have the effect of replacing common OP units with preferred units at what may ultimately be a favorable relative cost of capital, and may result in incremental funds from operations (FFO) and net asset value (NAV) accretion per share over time for the benefit of all remaining holders of OP Units and ESRT common stock. As an alternative, if the Company or ESRT were to make a current offer to the general public of a new series of perpetual preferred securities, we expect that these securities would generally have a materially higher distribution rate than the Preferred Units and would also have enhanced liquidity rights.

Accordingly, while we believe the Exchange Offer offers benefits to the Company and to holders of OP Units, the Exchange Offer is not suitable equally for all holders of OP Units, and the decision as to whether to tender OP Units in the Exchange Offer will not be the same for all holders. None of the directors, officers or employees of our general partner, the Information Agent or the Depositary is making a recommendation to you as to whether you should tender OP Units in the Exchange Offer. You must make your own investment decision regarding the Exchange Offer based upon your own assessment of the market value of the OP Units, your liquidity needs, your investment objectives and any other factors you deem relevant. See “Risk Factors.”

The Exchange Offer is being made exclusively to existing holders of OP Units. We do not intend to make any public offering of Preferred Units.

We have been advised that none of the directors, officers, or affiliates of our general partner, including members of the Malkin family, will tender any of their OP Units in the Exchange Offer.

Who is offering to buy my OP Units?

Empire State Realty OP, L.P., a Delaware limited partnership (the “Company”) and issuer of your OP Units, is offering to acquire up to 15,000,000 of the outstanding OP Units. Our general partner is Empire State Realty Trust, Inc., a Maryland corporation (“ESRT” or “our general partner”).

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The address of the Company’s and ESRT’s principal executive office is One Grand Central Place, 60 East 42nd Street, New York, New York 10165, and its telephone number is (212) 687-8700.

What will I receive in the Exchange Offer if I tender my OP Units and they are accepted?

We are offering to acquire OP Units in exchange for Preferred Units on one-for-one basis. Each Preferred Unit will have a liquidation preference of $16.62, which was the closing price of the ESRT Class A common stock on the New York Stock Exchange on May 23, 2014.

An exchange of OP Units for Preferred Units in this Exchange Offer would increase the annual distribution for tendering holders from the current $0.34 per unit to $0.60 per unit, an increase of over 75%. For example, the current distribution rate on 10,000 OP Units is $3,400.00 per annum. A holder who exchanges 10,000 OP Units in the Exchange Offer would receive 10,000 Preferred Units, which would be entitled to distributions of $6,000.00 per annum. Preferred Units will rank senior to OP Units and to ESRT Class A and Class B common stock for purposes of distributions and upon liquidation.

Distributions on the Preferred Units to be issued pursuant to the Exchange Offer will accrue from July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014). We believe that the exchange of OP Units for Preferred Units in the Exchange Offer will not cause a holder to recognize gain for tax purposes. Holders of OP Units who tender their OP Units in the Exchange Offer will still receive distributions for all periods during which they held the OP Units. See “Description of the Preferred Units” and “Certain Federal Income Tax Considerations.”

Is the Exchange Offer suitable for everyone?

No. An exchange of OP Units for Preferred Units in the Exchange Offer may not be suitable for you. The OP Units are common equity interests in the Company and are generally entitled to participate, pro rata with all other common equity holders, in the future operations and business results of the Company. Preferred Units, conversely, represent perpetual equity interests in us and will be entitled only to their stated distribution preference, irrespective of the size, growth or success of the Company. By exchanging your OP Units for Preferred Units, you will be exchanging the distributions and growth potential of the OP Units for the fixed distribution rights of the Preferred Units.

While the distribution rate on the Preferred Units will initially exceed the distribution rate on the OP Units, there can be no guarantee that this will always be the case in the future. In addition, we did not consider the current yield of preferred securities of any other public REIT when setting the distribution rate for the Preferred Units. Other preferred securities can be purchased at significantly higher dividend yields.

In addition, we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market. In addition, unlike the OP Units, the Preferred Units will not be convertible or exchangeable into or for units of any other class or series, or redeemable for any securities of our general partner. Since the Preferred Units will have no stated maturity date, you may be forced to hold your Preferred Units indefinitely and receive the stated distributions, when, as and if authorized by our general partner, with no guarantee as to ever receiving the liquidation preference.

Pursuant to the terms of ESRT’s Articles of Amendment and Restatement, if you are a holder of ESRT Class B common stock one share of your ESRT Class B common stock will automatically convert into one share of ESRT Class A common stock for every 49 OP Units that you exchange for Preferred Units in the Exchange Offer.

You should consider carefully all of the information set forth in this Offer to Exchange and, in particular, you should evaluate the specific factors set forth under “Risk Factors” before deciding whether to participate in the Exchange Offer.

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What are the tax consequences of the Exchange Offer to me?

We believe an exchange of OP Units for Preferred Units will not result in the recognition of gain or loss for U.S. federal income tax purposes. However, the tax consequences of the Exchange Offer to you may vary depending on your particular facts and circumstances. See “Certain Federal Income Tax Consequences” for a discussion of the tax treatment of our acquisition of OP Units in the Exchange Offer. We urge you to consult with your own tax advisor as to the particular tax consequences to you of the Exchange Offer.

Will I lose the right to receive distributions for past periods on any OP Units that I tender in the Exchange Offer?

No. Subject to declaration by the board of directors of our general partner, we expect quarterly distributions on our OP Units will next be paid on or about the end of our second fiscal quarter to OP Unit holders of record on or about June 15, 2014. Accordingly, since the Exchange Offer will not expire until June 26, 2014, at the earliest, you will still be a holder of record of your OP Units on the record date, and tendering your OP Units in the Exchange Offer will not affect your right to receive the regular quarterly distribution for the second quarter of 2014. Distributions on the Preferred Units to be issued pursuant to the Exchange Offer will begin to accrue on July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014).

Will the Preferred Units to be issued in the Exchange Offer be listed for trading?

Currently, no market exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market. No trading market for the Preferred Units is expected to develop, and holders of Preferred Units may not be able to transfer or sell their Preferred Units, and, if they do, the price received may be substantially less than the stated liquidation preference. Since the Preferred Units will have no stated maturity date and a limited trading market, you may be forced to hold your Preferred Units indefinitely and receive the stated distributions, when, as and if authorized by our general partner, with no guarantee as to ever receiving the liquidation preference.

Will the Preferred Units received by tendering holders of OP Units be freely tradable under the federal securities laws?

Yes, unless you are our affiliate. The Exchange Offer is being made pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), contained in Section 3(a)(9) of the Securities Act. Accordingly, Preferred Units received in exchange for OP Units tendered pursuant to the Exchange Offer will not be restricted securities for purposes of the Securities Act and will be tradable without regard to any holding period by those tendering holders who are not our “affiliates” (as defined in the Securities Act). Preferred Units issued pursuant to the Exchange Offer to a holder of OP Units who is deemed to be our affiliate may be sold or transferred only in accordance with the requirements of Rule 144 or other available exemption under the Securities Act. Under our partnership agreement, transfers of Preferred Units will be effective as of the first day of the next succeeding fiscal quarter of the operating partnership. For more information, see “Certain Securities Laws Considerations” and “Description of the Preferred Units—Transfers.”

Will I be able to convert or exchange any Preferred Units I receive in the Exchange Offer for other securities of the Company or of Empire State Realty Trust, Inc.?

No. The Preferred Units will not be convertible or exchangeable for or into units of any other class or series, or redeemable for securities of ESRT, our general partner.

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Will the OP Units remain listed on the NYSE Arca and does the Company intend to remain a public company following the completion of the Exchange Offer?

If the Exchange Offer is completed, we expect that Series ES OP Units, Series 60 OP Units and Series 250 OP Units will continue to qualify for listing on the NYSE Arca, and we intend to keep Series ES OP Units, Series 60 OP Units and Series 250 OP Units listed on the NYSE Arca following completion of the Exchange Offer. Series ES, Series 60 and Series 250 OP Units are registered under the Exchange Act, which requires, among other things, that we furnish certain information to unitholders and the SEC. We believe that our acquisition of OP Units pursuant to the Exchange Offer will not result in these OP Units becoming eligible for termination of registration under the Exchange Act. The Exchange Offer is conditioned upon, among other things, our having determined that the consummation of the Exchange Offer will not cause any OP Units to be delisted from the NYSE Arca or to be eligible for deregistration under the Exchange Act.

Are you making a recommendation regarding whether I should tender in the Exchange Offer?

No. None of the directors, officers or employees of our general partner, the Information Agent or the Depositary is making a recommendation to any holder of OP Units as to whether the holder should tender OP Units in the Exchange Offer. You must make your own investment decision regarding the Exchange Offer based upon your own assessment of the market value of the OP Units, your liquidity needs, your investment objectives and any other factors you deem relevant. You should carefully read this entire Offer to Exchange, the applicable letters of transmittal, as well as our Annual Report, before deciding whether or not to tender your OP Units. You should consult with your personal financial advisor or other legal, tax or investment professionals regarding your individual circumstances.

What is the maximum number of OP Units the Company will acquire in the Exchange Offer?

We are offering to exchange up to 15,000,000 of newly-issued Preferred Units on a one-for-one basis for up to 15,000,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units. If all conditions to the Exchange Offer are satisfied or waived, we will acquire OP Units on a pro rata basis from all tendering holders, disregarding fractions, according to the number of OP Units tendered by each holder. We will announce the proration percentage, if proration is necessary, within two business day following the expiration date.

If you validly tendered OP Units that are not accepted because of proration, those OP Units will be credited back to your appropriate account promptly following the termination of the Exchange Offer without expense to you.

When and how will I receive Preferred Units in exchange for my tendered OP Units?

If all terms and conditions for completion of the Exchange Offer are satisfied or waived, we will issue Preferred Units in exchange for all validly tendered and not withdrawn OP Units, up to a total of 15,000,000 OP Units, promptly after the expiration date of the Exchange Offer. We refer to the date on which such exchange is made as the “settlement date.” The settlement date is expected to be as soon as practicable after the expiration date. We currently anticipate the Exchange Offer settlement date will occur on or before July 1, 2014, although the date is subject to change as described in this Offer to Exchange. We reserve the right to delay settlement pending receipt of any required governmental or regulatory approvals.

We will issue Preferred Units in exchange for your OP Units that are validly tendered, not withdrawn, and accepted by us by delivering the Preferred Units to the Depositary, which will act as your agent for purposes of receiving the Preferred Units from us and transmitting such Preferred Units to you. In all cases, issuance of Preferred Units in exchange for tendered OP Units will be made only after timely receipt by the Depositary of a properly completed and duly executed letter of transmittal and any other required documents for such OP Units. See “The Exchange Offer—Tender of OP Units; Acceptance of OP Units.”

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May I tender only a portion of the OP Units that I hold?

Yes. You may choose to tender any or all of your OP Units from any series of OP Units.

What will happen if I do not tender my OP Units and the Exchange Offer is successfully completed?

If the Exchange Offer is successfully completed but you do not tender your OP Units, you will remain a holder of those OP Units.

What are the conditions to the consummation of the Exchange Offer?

The Exchange Offer is conditioned upon, among other things, at least 1,200,000 OP Units having been validly tendered and not properly withdrawn prior to the expiration of the Exchange Offer.

In addition, we are not obligated to accept or pay for, and may delay the acceptance of, any OP Units tendered pursuant to the Exchange Offer, in any event subject to Rule 14e-1(c) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), if at any time on or after the date of this Offer to Exchange and prior to the expiration date, any of the following conditions shall exist:

1. there is any litigation regarding the Exchange Offer:

• challenging or seeking to make illegal, materially delay, restrain or prohibit the Exchange Offer or our acceptance of tendered OP Units; or

• which could have a material adverse effect on us;

2.	any governmental authority issues a final and nonappealable order or takes any action permanently restraining, enjoining or prohibiting or materially delaying or preventing the consummation of the Exchange Offer, or consummation of the Exchange Offer would violate any law, rule or regulation applicable to us, including the distribution limitations under Delaware law;
3.	any law, rule, regulation or governmental order becomes applicable to us or the transactions contemplated by the Exchange Offer that would result, directly or indirectly, in the consequences described under condition 1 above;
4.	delivery of Preferred Units in exchange for OP Units would not be permitted under Delaware law; or
5.	consummation of the Exchange Offer would cause any series of OP Units to be delisted from the NYSE Arca or to be eligible for deregistration under the Exchange Act.

We will, in our reasonable judgment, determine whether each condition to the Exchange Offer has been satisfied or may be waived and whether any such condition(s) should be waived. If any of the conditions to the Exchange Offer is unsatisfied on the expiration date and we do not or cannot waive such conditions, the Exchange Offer will expire and we will not accept the OP Units that have been validly tendered.

See “The Exchange Offer—Conditions of the Exchange Offer” and “The Exchange Offer—Extension, Termination and Amendment.”

When will the Exchange Offer expire?

The Exchange Offer for each series of OP Units is currently scheduled to expire at midnight, New York City Time, on June 26, 2014. We may, however, extend the Exchange Offer from time to time in our discretion until all the conditions to the Exchange Offer have been satisfied or waived. We will also extend the expiration date of the Exchange Offer if required by applicable law or regulation.

See “The Exchange Offer—Extension, Termination and Amendment.”

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Under what circumstances may the Exchange Offer be terminated, and what happens to my tendered OP Units if that occurs?

The Exchange Offer may be terminated if the conditions to the Exchange Offer discussed in this Offer to Exchange are not satisfied or (where within the Company’s discretion) waived.

If the Exchange Offer is terminated and you previously have tendered OP Units, those OP Units will be credited back to an appropriate account promptly following the termination of the Exchange Offer without expense to you.

See “The Exchange Offer—Tender of OP Units; Acceptance of OP Units.”

How will I be notified if the Exchange Offer is extended, amended or terminated?

If the Exchange Offer is extended, amended or terminated, we will promptly make a public announcement by issuing a press release. In the case of an extension, the announcement will be issued no later than 9:00 a.m., New York City Time, on the next business day after the previously scheduled expiration date of the Exchange Offer.

See “The Exchange Offer—Extension, Termination and Amendment.”

Will I have to pay any fees or commissions for participating in the Exchange Offer?

You will not pay any fees to the Company, the Information Agent or the Depositary to participate in the Exchange Offer. If you hold your OP Units through a broker, dealer or other nominee, and your broker, dealer or other nominee tenders the OP Units on your behalf, your broker, dealer or other nominee may charge you a fee for doing so. You should consult your broker, dealer or other nominee to determine whether any charges will apply.

See “The Exchange Offer—Terms of the Exchange Offer” and “The Exchange Offer—Expenses.”

May I tender my OP Units in the Exchange Offer even if I am currently subject to a contractual lock-up on sales of OP Units?

Yes. The lead underwriters in connection with the initial public offering of shares of Class A common stock of ESRT, our general partner, and the initial issuance of the OP Units, have agreed to waive the transfer restrictions in the lock-up with respect to participation by holders of OP Units in the Exchange Offer.

How do I tender my OP Units?

If your OP Units are held in your name in the record books of the Company, you must indicate on the enclosed letter of transmittal the number of OP Units you wish to tender and mail the completed and signed letter of transmittal and any other required documents in the envelope provided no later than the time the Exchange Offer expires.

If your OP Units are held in street name (i.e., through a broker, dealer or other nominee), the OP Units can be tendered by your broker, dealer or other nominee through DTC upon your request.

If you have questions, please call the Information Agent at the toll-free number on the back cover of this Offer to Exchange. See “The Exchange Offer—Procedure for Tendering.”

If I recently purchased OP Units, can I still tender my OP Units in the Exchange Offer?

Yes. If you have recently purchased OP Units, you may tender those OP Units in the Exchange Offer but you must make sure that your transaction settles prior to the expiration date.

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What must I do if I want to withdraw my OP Units from the Exchange Offer?

You may withdraw previously tendered OP Units at any time before the expiration of the Exchange Offer. Any OP Units not accepted will be credited back to the appropriate account promptly following the expiration or termination of the Exchange Offer. In addition, after the expiration of the Exchange Offer, you may withdraw any OP Units that you tendered that are not accepted by us for exchange within 40 business days after the commencement of the Exchange Offer. See “The Exchange Offer—Withdrawal of Tenders.”

If your OP Units are registered in your name, in order to withdraw your OP Units from the Exchange Offer, you must deliver a written notice of withdrawal to us, c/o the Depositary, at the appropriate address specified on the back cover of this Offer to Exchange prior to the expiration of the Exchange Offer or, if your OP Units have not been previously accepted by us, after the expiration of 40 business days after the commencement of the Exchange Offer. Your notice of withdrawal must comply with the requirements set forth in this Offer to Exchange. If you have questions, please call the Information Agent at the toll-free number below.

If you hold your OP Units in street name (i.e., through a broker, dealer or other nominee) and you tendered your OP Units through DTC, a withdrawal of your OP Units will be effective if you and your nominee comply with the appropriate procedures of DTC’s Automated Tender Offer Program prior to the expiration of the Exchange Offer or after the expiration of 40 business days after the commencement of the Exchange Offer. Any notice of withdrawal must identify the OP Units to be withdrawn, including, if held through DTC, the name and number of the account at DTC to be credited and otherwise comply with the procedures of DTC. Your broker, dealer or other nominee can assist you with this process.

See “The Exchange Offer—Withdrawal of Tenders.”

Whom do I call if I have any questions on how to tender my OP Units or any other questions relating to the Exchange Offer?

Questions related to the terms of the Exchange Offer and requests for assistance, as well as for additional copies of this Offer to Exchange, the letters of transmittal or any other documents, may be directed to the Information Agent using the contact information set forth on the back cover of this Offer to Exchange or by telephone toll-free at (888) 410-7850.

Where can I find more information about Empire State Realty OP, L.P.?

For more information, see our most recent Annual Report on Form 10-K, which is available online at the SEC website (www.sec.gov) and our general partners’ website (www.empirestaterealtytrust.com), and is also available from us upon request. See “Where You Can Find More Information.”

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RISK FACTORS

You should carefully consider the risks and uncertainties described throughout this Offer to Exchange, including those described below, and the risk factors set forth in Item 1A to our most recent Annual Report on Form 10-K describing the risks of investment in our securities, before you decide whether to tender your OP Units.

We have not obtained a third-party determination that the Exchange Offer is fair to holders of OP Units.

None of us, our general partner, the directors, officers and employees of our general partner, the Information Agent or the Depositary is making a recommendation as to whether holders of OP Units should tender their OP Units in the Exchange Offer. We have not retained, and do not intend to retain, any unaffiliated representative to act solely on behalf of the holders of OP Units for purposes of negotiating the Exchange Offer or preparing a report concerning the fairness of the Exchange Offer. You must make your own independent decision regarding your participation in the Exchange Offer.

There is no established trading market for the Preferred Units, and this fact may negatively affect the market value of the Preferred Units and your ability to transfer or sell them.

Although the Preferred Units will be freely transferable under the federal securities laws, the Preferred Units will be a new issue of securities with no established trading market. We do not intend to apply to list the Preferred Units on any stock exchange or in any trading market. In addition, unlike the OP Units, the Preferred Units will not be convertible or exchangeable into or for units of any other class or series, or redeemable for any securities of our general partner. Since the Preferred Units will have no stated maturity date, you may be forced to hold your Preferred Units indefinitely and receive the stated distributions, when, as and if authorized by our general partner, with no guarantee as to ever receiving the liquidation preference. No trading market for the Preferred Units is expected to develop, and holders of Preferred Units may not be able to transfer or sell their Preferred Units, and, if they do, the price received may be substantially less than the stated liquidation preference.

Following the completion of the Exchange Offer, the number of units of each series of OP Units that are publicly traded may be reduced. Therefore, holders who choose not to tender their OP Units will own a greater percentage interest in our outstanding OP Units. This may reduce the volume of trading and make it more difficult to buy or sell significant amounts of OP Units without affecting the market price.

By exchanging your OP Units for Preferred Units in the Exchange Offer, you are giving up the right to participate in future increases in the value of the OP Units.

The OP Units are common equity interests in the Company and are generally entitled to participate, pro rata with all other common equity holders, in the future operations and business results of the Company. Preferred Units, conversely, represent perpetual equity interests in us and will be entitled only to the stated distribution preference, irrespective of the size, growth or success of the Company. By exchanging your OP Units for Preferred Units, you will be exchanging the distributions and growth potential of the OP Units for the fixed distribution rights of the Preferred Units. While the distribution rate on the Preferred Units will initially exceed the distribution rate on the OP Units, there can be no guarantee that this will always be the case in the future. By exchanging your OP Units for Preferred Units, you will also be giving up the right to exchange your units for cash or shares of ESRT’s Class A common stock, as well as the ability to realize the potential appreciation in value of ESRT’s Class A common stock.

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The Preferred Units may be valued at substantially less than their liquidation preference and may not be comparable to the preferred securities of other public real estate companies.

If the Company or ESRT were to currently make a general public offer of a new series of perpetual preferred securities, we expect that these securities would generally have a materially higher distribution rate than the Preferred Units and would also have enhanced liquidity rights. As a result, the Preferred Units may be valued at substantially less than their $16.62 liquidation preference and otherwise at a significant discount to comparable preferred securities of other public REITs and their operating partnerships. In addition, investors may never be able to realize the value of the liquidation preference, because an event may never occur that results in distributions of the liquidation preference.

The liquidation preference of the Preferred Units is fixed.

The liquidation preference of $16.62 per each Preferred Unit was determined by reference to the closing price of ESRT’s Class A common stock on the New York Stock Exchange on May 23, 2014. The liquidation preference is fixed and will not be adjusted higher or lower at the time the Exchange Offer expires or is settled, irrespective of the then-current market price of the ESRT Class A common stock on the New York Stock Exchange or the market prices of the OP Units as quoted on NYSE Arca. Accordingly, if we acquire your OP Units in the Exchange Offer, you may receive more or less nominal consideration than you would have received if you had sold your OP Units in the open market or in an alternative transaction.

The Preferred Units have not been rated.

We have not sought to obtain a rating for the Preferred Units. No assurance can be given, however, that one or more rating agencies might not independently determine to issue such ratings or that such ratings, if issued, would not adversely affect the market price of the Preferred Units. If we elect in the future to obtain a rating for the Preferred Units, the rating could also adversely affect the market price of the Preferred Units. Ratings only reflect the views of the rating agency or agencies issuing the ratings, and such ratings could be revised downward, placed on a watch list or withdrawn entirely at the discretion of the issuing rating agency if in its judgment circumstances so warrant. Any such downward revision, placing on a watch list or withdrawal of a rating could have an adverse effect on the market price of the Preferred Units.

Preferred Units will be subordinated to our debt obligations, and your interests could be diluted by the issuance of additional limited partner interests, including additional Preferred Units, and by other transactions.

The partnership agreement permits us to issue additional limited partnerships interests on a parity with or senior to the Preferred Units. The Preferred Units will be subordinated to all of our existing and future indebtedness. As of March 31, 2014, our total debt was $1.2 billion and we had the ability to borrow an additional $475.0 million under our revolving credit facility, subject to limitations in the credit facility. We may incur additional debt under this or future credit facilities. The payment of principal and interest on our debt reduces cash available for distribution to us and on our limited partner interests, including the Preferred Units.

The issuance of additional limited partner interests on a parity with or senior to the Preferred Units would dilute the interests of the holders of the Preferred Units and could affect our ability to pay distributions on, redeem or pay the liquidation preference on the Preferred Units. The terms of the Preferred Units do not protect holders in the event of a highly leveraged or other transaction, including a merger or the sale, lease or conveyance of all or substantially all our assets or business, which might adversely affect the holders of our Preferred Units.

Holders of Preferred Units will have extremely limited voting rights.

Your voting rights as a holder of Preferred Units will be extremely limited. Voting rights for holders of Preferred Units will exist primarily with respect to certain voting relating to amendments

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to our operating partnership agreement or the preferred unit designation related to the Preferred Units that materially and adversely affect the rights of the holders of our Preferred Units or with respect to the consolidation or merger of all or substantially all of the Company’s assets, subject to certain exceptions. See “Description of Our Preferred Units—Voting Rights.” Other than in these limited circumstances, holders of Preferred Units will not have any voting rights.

The tax consequences of the Exchange Offer may vary depending on your particular facts and circumstances.

An exchange of OP Units for Preferred Units should not result in the recognition of gain or loss for U.S. federal income tax purposes. However, the tax consequences of the Exchange Offer to you may vary depending on your particular facts and circumstances. We urge you to consult with your own tax advisor as to the particular tax consequences to you of the Exchange Offer. See “Certain Federal Income Tax Consequences” for a discussion of the tax treatment of our acquisition of OP Units in the Exchange Offer.

If you are a holder of ESRT Class B common stock, participating in the Exchange Offer will result in the automatic conversion of some of your Class B shares into Class A shares.

Pursuant to the terms of ESRT’s Articles of Amendment and Restatement, each share of Class B common stock is entitled to fifty (50) votes on each matter on which holders of Class A common stock are entitled to vote. ESRT’s Class A common stock and Class B common stock vote together as a single class. If you are a holder of ESRT Class B common stock, one share of your ESRT Class B common stock will automatically convert into one share of ESRT Class A common stock for every 49 OP Units that you exchange for Preferred Units in the Exchange Offer. ESRT Class A common stock is entitled to only one vote per share, so your aggregate voting power would be reduced accordingly.

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STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This Offer to Exchange contains forward-looking statements. Forward-looking statements are subject to substantial risks and uncertainties, many of which are difficult to predict and are generally beyond our control. In particular, statements pertaining to our capital resources, portfolio performance, dividend policy and results of operations contain forward-looking statements. Likewise, all of our statements regarding anticipated growth in our portfolio from operations, acquisitions and anticipated market conditions, demographics and results of operations are forward-looking statements. Forward- looking statements involve numerous risks and uncertainties, and you should not rely on them as predictions of future events. You can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “estimates,” “contemplates,” “aims,” “continues,” “would” or “anticipates” or the negative of these words and phrases or similar words or phrases. Forward-looking statements depend on assumptions, data or methods which may be incorrect or imprecise and we may not be able to realize them. We do not guarantee that the transactions and events described will happen as described (or that they will happen at all). The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements:

• the factors included in this Offer to Exchange, including those set forth under the heading “Risk Factors,” and in our Annual Report on Form 10-K, including those set forth under the headings “Business” and “Risk Factors;”

• changes in our industry and changes in the real estate markets in particular, either nationally or in Manhattan or the greater New York metropolitan area;

• resolution of the class action litigation involving the Company and ESRT;

• reduced demand for office or retail space;

• general volatility of the capital and credit markets and the market price of our general partner’s Class A common stock and our traded OP Units;

• changes in our business strategy;

• defaults on, early terminations of or non-renewal of leases by tenants;

• bankruptcy or insolvency of a major tenant or a significant number of smaller tenants;

• litigation;

• fluctuations in interest rates and increased operating costs;

• declining real estate valuations and impairment charges;

• availability, terms and deployment of capital;

• our failure to obtain necessary outside financing;

• our expected leverage;

• decreased rental rates or increased vacancy rates;

• our failure to generate sufficient cash flows to service our outstanding indebtedness;

• our failure to redevelop and reposition properties successfully or on the anticipated timeline or at the anticipated costs;

• difficulties in identifying properties to acquire and completing acquisitions;

• risks of real estate acquisitions, dispositions and development (including our Metro Tower development site), including the cost of construction delays and cost overruns;

• our failure to operate acquired properties and operations successfully;

• our projected operating results;

• our ability to manage our growth effectively;

• estimates relating to our ability to make distributions to our unitholders in the future;

• impact of changes in governmental regulations, tax law and rates and similar matters;

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• ESRT’s failure to qualify as a REIT;

• a future terrorist event in the U.S.;

• environmental uncertainties and risks related to adverse weather conditions and natural disasters;

• lack or insufficient amounts of insurance;

• financial market fluctuations;

• availability of and our ability to attract and retain qualified personnel;

• conflicts of interest with ESRT’s senior management team;

• our understanding of our competition;

• changes in real estate and zoning laws and increases in real property tax rates; and

• our ability to comply with the laws, rules and regulations applicable to companies and, in particular, public companies.

While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. We disclaim any obligation publicly to update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes after the date of this document, except as required by applicable law. For a further discussion of these and other factors that could impact the company’s future results, performance or transactions, see the section entitled “Risk Factors” beginning on page 11 of our Annual Report on Form 10-K for the year ended December 31, 2013 which we filed with the SEC. You should not place undue reliance on any forward-looking statements, which are based only on information currently available to us.

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THE EXCHANGE OFFER

No Recommendation

AN EXCHANGE OF OP UNITS FOR PREFERRED UNITS IN THE EXCHANGE OFFER MAY NOT BE SUITABLE FOR YOU. NONE OF THE DIRECTORS, OFFICERS AND EMPLOYEES OF OUR GENERAL PARTNER, THE INFORMATION AGENT OR THE DEPOSITARY IS MAKING A RECOMMENDATION TO YOU AS TO WHETHER YOU SHOULD TENDER OP UNITS IN THE EXCHANGE OFFER. YOU MUST MAKE YOUR OWN INVESTMENT DECISION REGARDING THE EXCHANGE OFFER BASED UPON YOUR OWN ASSESSMENT OF THE MARKET VALUE OF THE OP UNITS, YOUR LIQUIDITY NEEDS, YOUR INVESTMENT OBJECTIVES AND ANY OTHER FACTORS YOU DEEM RELEVANT. BEFORE YOU MAKE YOUR DECISION, WE URGE YOU TO CAREFULLY READ THIS EXCHANGE OFFER IN ITS ENTIRETY, INCLUDING THE INFORMATION SET FORTH UNDER “RISK FACTORS” AND THE INFORMATION INCORPORATED BY REFERENCE HEREIN. WE ALSO URGE YOU TO CONSULT YOUR OWN FINANCIAL AND TAX ADVISORS IN MAKING YOUR OWN DECISIONS ON WHAT ACTION, IF ANY, TO TAKE IN LIGHT OF YOUR OWN PARTICULAR CIRCUMSTANCES.

Terms of the Exchange Offer

We are offering to exchange up to 15,000,000 of our newly-issued Preferred Units on a one-for-one basis for up to 15,000,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units. The Preferred Units will have a liquidation preference of $16.62 per unit, which was the closing price of the ESRT Class A common stock on the New York Stock Exchange on May 23, 2014.

If all conditions to the Exchange Offer are satisfied or waived, we will acquire OP Units on a pro rata basis from all tendering holders, disregarding fractions, according to the number of OP Units tendered by each holder. We will announce the proration percentage, if proration is necessary, within two business days following the expiration date.

The Preferred Units

Liquidation Preference. Holders of the Preferred Units will be entitled to a liquidation preference equivalent to $16.62 per Preferred Unit, plus an amount equal to any accrued and unpaid distributions (whether or not declared) up to, but excluding, the date of payment.

Distributions. Holders of the Preferred Units will be entitled to receive cumulative preferential annual cash distributions of $0.60 per Preferred Unit, when, as and if declared by the board of directors of our general partner out of legally available funds for such purpose. An exchange of OP Units for Preferred Units in this Exchange Offer would increase the annual distribution for tendering holders from the current $0.34 per unit to $0.60 per unit, an increase of over 75%. For example, the current distribution rate on 10,000 OP Units is $3,400.00 per annum. A holder who exchanges 10,000 OP Units in the Exchange Offer would receive 10,000 Preferred Units, which would be entitled to distributions of $6,000.00 per annum on a preferential basis. See “Description of the Partnership Agreement—Distributions” on page 41.

Distributions will be payable quarterly in arrears on same day on which quarterly distributions on OP Units are paid, which is currently the last day of each of March, June, September and December (or, if not a business day, the next succeeding business day). Distributions on the Preferred Units will accrue whether or not we have earnings, whether or not there are funds legally available for the payment of such distributions, and whether or not distributions are declared. Distributions on the Preferred Units will begin to accrue from July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014).

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By exchanging an OP Unit for a Preferred Unit in this offering, a holder would be exchanging an exchangeable variable yield equity security for a non-exchangeable fixed yield preference security, and it is possible that distributions on OP Units will in the future equal or exceed distributions on the Preferred Units. In addition, we did not consider the current yield of preferred securities of any other public REIT when setting the distribution rate for the Preferred Units. Other preferred securities can be purchased at significantly higher dividend yields.

Redemption. Except in certain circumstances relating to the preservation of our general partner’s status as a REIT for United States federal income tax purposes, we may not redeem the Preferred Units. In addition, if in the future the Company or its general partner is party to certain fundamental capital transactions, such as a change of control, then the Company will have the right, at its option, to redeem the Preferred Units, in whole but not in part, for cash at a redemption price equal to 200% of their stated liquidation preference, plus all accrued and unpaid distributions (whether or not declared) thereon up to, but excluding the date fixed for redemption, without interest.

No Conversion or Exchange. The Preferred Units will not be convertible or exchangeable for or into units of any other class or series, or redeemable for securities of our general partner.

Voting Rights. Holders of the Preferred Units will have voting rights in connection with amendments to our operating partnership agreement or the terms of the Preferred Units that materially and adversely affect the rights of the Preferred Units. Other than in these limited circumstances, holders of the Preferred Units will have no voting rights.

Ranking. The Preferred Units will, with respect to distribution rights and rights upon voluntary or involuntary liquidation, dissolution or winding up of the Company, rank:

• senior to all classes or series of our common units, including the OP Units, and to all classes or series of partnership units now or hereafter authorized, issued or outstanding, the terms of which specifically provide that such units rank junior to the Preferred Units;

• on parity with any other class or series of partnership units, if the holders of such other class or series and the Preferred Units are entitled to the receipt of distributions and of amounts distributable upon liquidation, dissolution or winding up in proportion to their respective amounts of accrued and unpaid distributions per unit or liquidation preference, without preference or priority one over the other; and

• junior to any class or series of partnership units, if the holders of such class or series are entitled to the receipt of distributions and of amounts distributable upon liquidation, dissolution or winding up, as the case may be, in preference or in priority to the holders of the Preferred Units.

The Preferred Units will also rank junior in right of payment to the Company’s other existing and future debt obligations.

Under Delaware law and our operating partnership agreement, no distribution may be made to any unitholder on account of its ownership interest in the operating partnership to the extent that at the time of the distribution, after giving effect to the distribution, all liabilities of the operating partnership, other than liabilities to unitholders on account of their operating partnership interests and liabilities for which the recourse of creditors is limited to specified property of the operating partnership, exceed the fair value of the assets of the operating partnership, except that the fair value of property that is subject to a liability for which the recourse of creditors is limited shall be included in the assets of the operating partnership only to the extent that the fair value of that property exceeds that liability. For purposes of this restriction, “distribution” does not include amounts constituting reasonable compensation for present or past services or reasonable payments made in the ordinary course of business pursuant to a bona fide retirement plan or other benefits program.

See “Description of the Preferred Units” and “Comparison of Rights Between the OP Units and the Preferred Units.”

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Other Terms; General

We are making the Exchange Offer only to holders of OP Units in reliance upon the exemption from the registration requirements of the Securities Act afforded by Section 3(a)(9) of the Securities Act. We will not pay any commission or other remuneration to any broker, dealer, salesman or other person for soliciting tenders of OP Units. Our officers, directors and employees may solicit tenders from holders of our OP Units and will answer inquiries concerning the Exchange Offer, but they will not receive additional compensation for soliciting tenders or answering any such inquiries.

MacKenzie Partners, Inc. is acting as Information Agent, and American Stock Transfer and Trust Company, LLC is acting as Depositary in connection with the Exchange Offer. The Information Agent may contact holders of OP Units by mail, telephone, facsimile and personal interviews and may request brokers, dealers and other nominee unitholders to forward materials relating to the Exchange Offer to beneficial owners. The Information Agent and the Depositary will each receive reasonable and customary compensation for their respective services and will be reimbursed by us for reasonable out-of-pocket expenses. The Information Agent will be indemnified against certain liabilities in connection with the Exchange Offer, including certain liabilities under the federal securities laws.

In addition, we will request that brokers, dealers and other nominees forward copies of this Offer to Exchange to the beneficial owners of OP Units, and will provide reimbursement for the cost of forwarding the material. We will not pay any fees or commissions to brokers, dealers, other nominees or other persons (other than as described above) for soliciting tenders of OP Units in connection with the Exchange Offer. In addition, the directors, officers and employees of our general partner may solicit tenders from holders of our OP Units and will answer inquiries concerning the Exchange Offer, but they will not receive additional compensation for soliciting tenders or answering any such inquiries.

You should rely only on the information contained in this Offer to Exchange. Except as described above, we have no arrangements for and have no understanding with any dealer, salesman or other person regarding the solicitation of tenders hereunder. None of us, the Depositary or the Information Agent has authorized any other person to provide you with different or additional information. If anyone provides you with different or inconsistent information, you should not rely on it. Neither the delivery of this Offer to Exchange nor any purchase made hereunder shall, under any circumstances, create any implication that there has been no change in the affairs of the Company or its subsidiaries or general partner since the respective dates as of which information is given in this Offer to Exchange. We are offering to acquire, and are seeking tenders of, the OP Units only in U.S. jurisdictions where the offers or tenders are permitted pursuant to the laws of such jurisdiction.

Owners who tender their OP Units directly to us through the Depositary will not have to pay any fees or commissions. Holders who tender their OP Units through a broker, dealer or other nominee may be charged a fee by their broker, dealer or other nominee for doing so. Such holders should consult their broker, dealer or other nominee to determine whether any charges will apply.

The term “expiration date” means midnight, New York City Time, on June 26, 2014, unless we extend the period of time for which the Exchange Offer with respect to any series of OP Units is open, in which case the term “expiration date” means the latest time and date on which the Exchange Offer with respect to such series of OP Units, as so extended, expires.

If the Exchange Offer expires or terminates without any OP Units being accepted by us following the expiration or termination of the Exchange Offer, you will continue to hold your OP Units.

Pursuant to the terms of ESRT’s Articles of Amendment and Restatement, if you are a holder of ESRT Class B common stock, one share of your ESRT Class B common stock will automatically convert into one share of ESRT Class A common stock for every 49 OP Units that you exchange for Preferred Units in the Exchange Offer.

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Conditions of the Exchange Offer

The Exchange Offer is conditioned upon at least 1,200,000 OP Units having been validly tendered and not properly withdrawn prior to the expiration of the Exchange Offer.

In addition, we are not obligated to accept, purchase or pay for, and may delay the acceptance of, any OP Units tendered pursuant to the Exchange Offer, in any event subject to Rule 14e-1(c) under the Exchange Act, if at any time on or after the date of this Offer to Exchange and prior to the expiration of the Exchange Offer, any of the following conditions shall exist:

1.	there is any litigation regarding the Exchange Offer (i) challenging or seeking to make illegal, materially delay, restrain or prohibit the Exchange Offer or the acceptance of OP Units; or (ii) which could have a material adverse effect on us;
2.	any governmental authority issues a final and nonappealable order or takes any action permanently restraining, enjoining or prohibiting or materially delaying or preventing the consummation of the Exchange Offer or consummation of the Exchange Offer would violate any law, rule or regulation applicable to us, including the distribution limitations under Delaware law;
3.	any law, rule or regulation or governmental order becomes applicable to us or the transactions contemplated by the Exchange Offer that results, directly or indirectly, in any of the consequences described within paragraph (1) above;
4.	the payment of the aggregate consideration for all OP Units that would be accepted for payment in the Exchange Offer or payment of the accumulated and unpaid dividends through the Exchange Offer payment date would not be permitted under Delaware law; or
5.	consummation of the Exchange Offer will cause any series of OP Units to be delisted from the NYSE Arca or to be eligible for deregistration under the Exchange Act.

We will, in our reasonable judgment, determine whether each condition to the Exchange Offer has been satisfied or may be waived and whether any such condition(s) should be waived. If any of the conditions to the Exchange Offer is unsatisfied on the expiration date and we do not or cannot waive such conditions, the Exchange Offer will expire and we will not accept the OP Units that have been validly tendered.

Extension, Termination and Amendment

We expressly reserve the right, at any time and from time to time, to extend the period of time during which the Exchange Offer with respect to each series of OP Units is open, in our sole discretion. We will extend the expiration date of the Exchange Offer if required by applicable law or regulation or for any reason we deem appropriate. During any such extension, all OP Units previously tendered and not validly withdrawn will remain subject to the Exchange Offer and subject to your right to withdraw your OP Units in accordance with the terms of the Exchange Offer.

Subject to the SEC’s applicable rules and regulations, we reserve the right, at any time or from time to time, to:

• amend or make changes to the terms of the Exchange Offer, including the conditions to the Exchange Offer;

• delay our acceptance or our acquisition of any OP Units pursuant to the Exchange Offer or terminate the Exchange Offer and not accept or acquire any OP Units not previously accepted or acquired, upon the determination that any of the conditions of the Exchange Offer have not been satisfied, as determined by us; and

• waive any condition.

We will follow any extension, termination, amendment or delay, as promptly as practicable, with a public announcement. In the case of an extension, any such announcement will be issued no later than 9:00 a.m., New York City Time, on the next business day after the previously scheduled expiration date. If we amend the Exchange Offer in a manner we determine to constitute a material change, we will promptly disclose the amendment as required by law and, depending on the

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significance of the amendment and the manner of disclosure to the registered holders, we will extend the Exchange Offer as required by law if the Exchange Offer would otherwise expire during that period.

Without limiting the manner in which we may choose to make public announcements of any delay in acceptance, extension termination or amendment of the Exchange Offer, we will have no obligation to publish, advertise or otherwise communicate any public announcement, other than by making a timely release to an appropriate news agency.

If we make a material change in the terms of the Exchange Offer or the information concerning the Exchange Offer, or if we waive a material condition of the Exchange Offer, we will extend the Exchange Offer to the extent required under the Exchange Act. If, prior to the expiration date, we increase or decrease the percentage of OP Units being sought or increase or decrease the consideration, or change the type of consideration, offered to holders of OP Units, such modification will be applicable to all holders of OP Units whose OP Units are accepted pursuant to the Exchange Offer and, if, at the time notice of any such modification is first published, sent or given to holders of OP Units, the Exchange Offer is scheduled to expire at any time earlier than the tenth business day from and including the date that such notice is first so published, sent or given, the Exchange Offer will be extended until the expiration of such ten business day period. For purposes of the Exchange Offer, a “business day” means any day other than a Saturday, Sunday or a federal holiday and consists of the time period from 12:01 a.m. through midnight, New York City Time.

Tender of OP Units; Acceptance of OP Units

Upon the terms and subject to the conditions of the Exchange Offer (including, if the Exchange Offer is extended or amended, the terms and conditions of any such extension or amendment), we will acquire, promptly after the expiration date, by accepting, OP Units validly tendered and not properly withdrawn promptly after the expiration date. The settlement date is expected to be as soon as practicable after the expiration date. In addition, subject to the applicable rules of the SEC, we expressly reserve the right to delay acceptance of, or the acquisition of, any OP Units in order to comply with any applicable law. The reservation of this right to delay the acceptance or acquisition of, or payment for, the OP Units is subject to the provisions of Rule 14e-1(c) under the Exchange Act, which requires us to pay the consideration offered or to return the OP Units deposited by, or on behalf of, unitholders, promptly after the termination or withdrawal of the Exchange Offer.

For purposes of the Exchange Offer, we will be deemed to have accepted (and thereby acquired) OP Units validly tendered, not properly withdrawn, and subject to proration if necessary, if and when we notify the Depositary of our acceptance of the tenders of OP Units pursuant to the Exchange Offer. Upon the terms and subject to the conditions of the Exchange Offer, we will deliver Preferred Units in exchange for OP Units to the Depositary, which will act as agent for tendering unitholders for the purpose of receiving the Preferred Units from us and transmitting such Preferred Units through a book-entry transfer to such tendering unitholders whose OP Units have been accepted.

Under no circumstances will we pay interest on the consideration payable for OP Units, regardless of any delay in making such delivery or extension of the expiration date.

If, prior to the expiration date, we increase the consideration to be paid per OP Unit pursuant to this Exchange Offer, we will pay or deliver such increased consideration for all such OP Units acquired pursuant to the Exchange Offer, whether or not such OP Units were tendered prior to such increase in consideration.

If certain events occur, we may not be obligated to acquire OP Units pursuant to the Exchange Offer. See “The Exchange Offer—Conditions of the Exchange Offer.”

In all cases, delivery to a tendering holder of the consideration for OP Units accepted pursuant to the Exchange Offer will be made only after timely receipt by the Depositary of (i) the appropriate letter of transmittal (or a manually signed photocopy), properly completed and duly executed, and any other documents required by the letter of transmittal or (ii) where applicable, the confirmation of a book-entry transfer of the OP Units into the Depositary’s account at DTC (the

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book-entry transfer facility) (a “Book-Entry Confirmation”) pursuant to the procedures set forth in “The Exchange Offer—Procedure for Tendering.”

If we do not accept any tendered OP Units pursuant to the terms and conditions of the Exchange Offer for any reason, those OP Units will be credited back to an appropriate account promptly following expiration or termination of the Exchange Offer.

All OP Units that are validly tendered and accepted by us in the Exchange Offer will be cancelled.

Fractional Units

Fractional units will not be issued in this offer. If, under the terms of the Exchange Offer, a tendering holder is entitled to receive an amount of Preferred Units that is not a whole number, we will round up to the nearest whole number. This rounded amount will be the number of Preferred Units such tendering holder will receive, and such tendering holder will not receive any cash in lieu of any fractional units or other consideration otherwise issuable.

Procedure for Tendering

Record Holders. In order for a unitholder that holds OP Units in book-entry form in the record books of the Company to validly tender OP Units pursuant to the Exchange Offer, the appropriate letter of transmittal (or a manually signed photocopy), properly completed and duly executed, and any other documents required by the appropriate letter of transmittal must be received by the Depositary at the address set forth on the back cover of this Offer to Exchange prior to the expiration date. The holder may change its election prior to the expiration date of the Exchange Offer by submitting to the Depositary a properly completed and signed revised letter of transmittal.

Holders in Street Name. In order for a unitholder that holds OP Units in street name (i.e., through a broker, dealer or other nominee) to validly tender OP Units pursuant to the Exchange Offer, the OP Units must be tendered pursuant to the procedure for book-entry transfer described below and a Book-Entry Confirmation must be received by the Depositary prior to the expiration date. The Depositary will establish an account with respect to the OP Units at DTC, the book-entry transfer facility, for purposes of the Exchange Offer within two business days after the date of this Offer to Exchange. The holder should instruct its broker, dealer or other nominee to make the appropriate election on its behalf when they tender OP Units through DTC. The holder may change its election by transmitting, or instructing its broker, dealer or other nominee to transmit, revised election information through DTC. Any financial institution that is a participant in the system of DTC may make a book-entry delivery of OP Units by causing DTC to transfer those OP Units into the Depositary’s account at DTC in accordance with DTC’s procedures for transfer. However, although delivery of OP Units may be effected through book-entry transfer at DTC, any required documents or confirmations must be received by the Depositary prior to the expiration date. Delivery of documents to DTC does not constitute delivery to the Depositary.

Fees. If you are the record owner of OP Units and you tender your OP Units directly to the Depositary, you will not be obligated to pay any charges or expenses of the Depositary or any brokerage commissions. If you own your OP Units through a broker, dealer or other nominee, and your broker, dealer or other nominee tenders the OP Units on your behalf, such institution may charge you a fee for doing so. You should consult your broker, dealer or nominee to determine whether any charges will apply. Transfer taxes on the acquisition of OP Units pursuant to the Exchange Offer, if any, will be paid by us.

No Guaranteed Delivery. There are no guaranteed delivery provisions provided for by the Company in connection with the Exchange Offer under the terms of this Offer to Exchange or any other related documents. Holders must tender their OP Units in accordance with the procedures set forth above.

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Effects of Tenders

By tendering your OP Units as set forth above, you irrevocably appoint the Depositary and its designees as your attorneys-in-fact and proxies, each with full power of substitution, to the full extent of your rights with respect to your OP Units tendered and accepted by us. Such appointment will be automatically revoked if we do not accept OP Units that you have tendered. All such proxies shall be considered coupled with an interest in the tendered OP Units and therefore shall not be revocable; provided that the OP Units tendered pursuant to the Exchange Offer may be withdrawn at any time on or prior to the expiration date, as it may be extended by us, and unless theretofore accepted and not returned as provided for herein, may also be withdrawn after the expiration of 40 business days after the commencement of the Exchange Offer, subject to the withdrawal rights and procedures set forth below. Upon the effectiveness of such appointment, all prior proxies or consents given by you will be revoked, and no subsequent proxies or consents may be given (and, if given, will not be deemed effective) unless the tendered OP Units is validly withdrawn.

We will determine all questions as to the validity, form, eligibility (including time of receipt) and acceptance of any tender of OP Units in the Exchange Offer, and our determination shall be final and binding, subject to a holder challenging our determination in a court of competent jurisdiction and such court issuing a judgment to the contrary. We reserve the right to reject any and all tenders of OP Units in the Exchange Offer determined by us not to be in proper form or the acceptance or acquisition of which may, in our opinion, be unlawful. No alternative, conditional or contingent tenders will be accepted and no fractional OP Units will be purchased.

Subject to the applicable rules and regulations of the SEC, we also reserve the right to waive, prior to the expiration date, in our sole discretion, any of the conditions to the Exchange Offer, including the absolute right to waive any defect or irregularity in the tender of any OP Units in the Exchange Offer. No tender of OP Units in the Exchange Offer will be deemed to have been made until all defects and irregularities in the tender of such OP Units in the Exchange Offer have been cured or waived. Neither we, the Depositary, the Information Agent nor any other person will be under any duty to give notification of any defects or irregularities in the tender of any OP Units in the Exchange Offer or will incur any liability for failure to give any such notification. Our interpretation of the terms and conditions of the Exchange Offer (including the letters of transmittal and instructions thereto) will be final and binding, subject to a challenge to our determination in a court of competent jurisdiction and such court issuing a judgment to the contrary.

Rule 14e-4 “Net Long Position” Requirement

It is a violation of Rule 14e-4 (promulgated under the Exchange Act) for a person, directly or indirectly, to tender securities in a partial tender offer for their own account unless the person so tendering their securities (a) has a net long position equal to or greater than the aggregate principal amount of the securities being tendered and (b) will cause such securities to be delivered in accordance with the terms of the tender offer. Rule 14e-4 provides a similar restriction applicable to the tender or guarantee of a tender on behalf of another person.

A tender of OP Units in the Exchange Offer under any of the procedures described above will constitute the tendering holder’s representation and warranty that (a) such holder has a net long position in the OP Units being tendered pursuant to the Exchange Offer within the meaning of Rule 14e-4 under the Exchange Act and (b) the tender of such OP Units complies with Rule 14e-4.

The tender of OP Units, pursuant to any of the procedures described above, will constitute a binding agreement between you and us upon the terms and subject to the conditions of the Exchange Offer.

Withdrawal of Tenders

You may validly withdraw OP Units that you tender at any time prior to the expiration date of the Exchange Offer, which is midnight, New York City Time, on June 26, 2014, unless we extend it. Any OP Units not accepted will be credited back to the appropriate account promptly following the

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expiration or termination of the Exchange Offer. In addition, after the expiration of the Exchange Offer, you may withdraw any OP Units that you tendered that are not accepted by us within 40 business days after the commencement of the Exchange Offer.

For a withdrawal to be effective, you must deliver a written notice of withdrawal to the Depositary at the appropriate address specified on the back cover of this Offer to Exchange prior to the expiration date or, if your OP Units are not previously accepted by us, after the expiration of 40 business days after the commencement of the Exchange Offer. Any notice of withdrawal must identify the beneficial owner of the OP Units to be withdrawn, including the name of the beneficial owner of the OP Units, the name of the person who tendered the OP Units, if different, and the number of OP Units to be withdrawn. Your notice of withdrawal must comply with the requirements set forth in this Offer to Exchange. If you tendered OP Units pursuant to the procedures for a book-entry transfer, a withdrawal of OP Units will only be effective if you comply with the appropriate DTC procedures prior to the expiration date of the Exchange Offer or, if your OP Units are not previously accepted by us, after the expiration of 40 business days after the commencement of the Exchange Offer.

If we extend the Exchange Offer, are delayed in our acceptance of the OP Units or are unable to accept OP Units pursuant to the Exchange Offer for any reason, then, without prejudice to our rights under the Exchange Offer, the Depositary may retain tendered OP Units, and those OP Units may not be withdrawn except as otherwise provided in this Offer to Exchange, subject to provisions under the Exchange Act that provide that an issuer making a tender offer shall either pay the consideration offered or return tendered securities promptly after the termination or withdrawal of the tender offer.

All questions as to the validity, form and eligibility, including time or receipt, of notices of withdrawal will be determined by us. Our determination will be final and binding on all parties, subject to a holder challenging our determination in a court of competent jurisdiction and such court issuing a judgment to the contrary. Any OP Units withdrawn will be deemed not to have been validly tendered for purposes of the Exchange Offer, and no consideration will be given, unless the OP Units so withdrawn are validly re-tendered and not properly withdrawn. Properly withdrawn OP Units may be re- tendered by following the procedures described above under “The Exchange Offer—Procedure for Tendering” at any time prior to the expiration date of the Exchange Offer.

None of us, the Depositary, the Information Agent or any other person will be under any duty to give notification of any defects or irregularities in any notice of withdrawal or will incur any liability for failure to give any such notification. Any OP Units properly withdrawn will be deemed not to have been validly tendered for purposes of the Exchange Offer.

Source and Amount of Funds

The Exchange Offer is not conditioned upon our receipt of financing.

Liquidity; Listing

Currently, no market exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market. See “Risk Factors—There is no established trading market for the Preferred Units which may negatively affect its market value and your ability to transfer or sell your Preferred Units” above.

Series ES OP Units, Series 60 OP Units and Series 250 OP Units are currently listed and traded on the NYSE Arca. Series PR OP Units are not listed on any exchange and are not traded. In addition, beginning on October 8, 2014, holders of OP Units may exchange their units for cash or, at the election of our general partner, shares of ESRT’s Class A common stock on a one-for-one basis. Shares of ESRT Class A common stock are traded on the New York Stock Exchange.

Following the completion of the Exchange Offer, the number of units of each series of OP Units that are publicly traded may be reduced. Therefore, holders who choose not to tender their OP Units will own a greater percentage interest in our outstanding OP Units. This may reduce the

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volume of trading and make it more difficult to buy or sell significant amounts of OP Units without affecting the market price.

Appraisal Rights

You do not have appraisal rights in connection with the Exchange Offer.

Certain Legal and Regulatory Matters

Except as set forth in this Offer to Exchange, we are not aware of any material filing, approval or other action by or with any governmental authority or administrative or regulatory agency that would be required for our acquisition or ownership of OP Units. We intend to make all required filings under the Exchange Act.

Subsequent Repurchases of OP Units

Whether or not the Exchange Offer is consummated, subject to applicable contractual restrictions, the terms of our operating partnership agreement and applicable law, we or our affiliates may from time to time acquire OP Units, other than pursuant to the Exchange Offer, through open market purchases, privately negotiated transactions, exchange offers, exercise of optional redemption rights, offers to purchase, exercise by holders of their right to redeem the operating partnership units or otherwise, upon such terms and at such prices as we may determine, which may be more or less than the amount to be paid pursuant to the Exchange Offer and could be paid in cash or other consideration not provided for in this Exchange Offer. However, we have no current plan or commitment to do so. Until the expiration of at least ten business days after the date of termination of the Exchange Offer, neither we nor any of our affiliates will make any purchases of OP Units otherwise than pursuant to the Exchange Offer. If required by Rule 13e-3 under the Exchange Act, any subsequent repurchases will be made in accordance with Rule 13e-3 and any other applicable provisions of the Exchange Act.

Depositary

We have retained American Stock Transfer & Trust Company, LLC as Depositary. We will pay American Stock Transfer & Trust Company, LLC reasonable and customary compensation for its services in connection with the Exchange Offer and reimburse it for its reasonable out-of-pocket expenses.

Information Agent

MacKenzie Partners, Inc. is serving as Information Agent in connection with the Exchange Offer. The Information Agent will assist with the mailing of this Offer to Exchange and related materials to holders of OP Units, respond to inquiries of and provide information to holders of OP Units in connection with the Exchange Offer, and provide other similar advisory services as we may request from time to time. Questions regarding the terms of the Exchange Offer, and requests for assistance or for additional copies of this Offer to Exchange and any other required documents, may be directed to the Information Agent at the address and telephone numbers set forth on the back cover of this Offer to Exchange.

Expenses

We expect to incur reasonable and customary fees and expenses of approximately $1.6 million in connection with the Exchange Offer. We also will pay brokerage houses and other brokers, dealers, nominees and fiduciaries the reasonable out-of-pocket expenses incurred by them in forwarding copies of this Exchange Offer, the letters of transmittal and related documents to the beneficial owners of OP Units and in handling or forwarding tenders of OP Units by their customers.

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In connection with the Exchange Offer, the officers, directors and employees of our general partner may solicit tenders of OP Units by use of the mails, personally or by telephone, facsimile, telegram, electronic communication or other similar methods. These officers, directors and employees of our general partner will not be specifically compensated for these services.

No brokerage commissions will be payable by tendering holders of OP Units to us, the Information Agent or the Depositary. Unitholders who tender their OP Units through a broker, dealer or other nominee should contact such institution as to whether it charges any service fees.

Additional Information

Pursuant to Exchange Act Rule 13e-4, we have filed with the SEC a Tender Offer Statement on Schedule TO (the “Schedule TO”), which contains additional information with respect to the Exchange Offer. We will file an amendment to the Schedule TO to report any material changes in the terms of the Exchange Offer and to report the final results of the Exchange Offer as required by Exchange Act Rule 13e-4(c)(3) and 13e-4(c)(4), respectively. The Schedule TO, including the exhibits and any amendments thereto, may be examined, and copies may be obtained, at the same places and in the same manner as is set forth under “Where You Can Find More Information.”

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INTERESTS OF DIRECTORS AND OFFICERS

The following table sets forth certain information, as of May 23, 2014, regarding the beneficial ownership of OP Units and ESRT common stock by:

• each director of our general partner;

• each named executive officer of our general partner; and

• all directors and executive officers of our general partner as a group.

In accordance with SEC rules, each listed person’s beneficial ownership includes:

• all shares the investor actually owns beneficially or of record;

• all shares over which the investor has or shares voting or dispositive control (such as in the capacity as a general partner of an investment fund); and

• all shares the investor has the right to acquire within 60 days after May 23, 2014 (unless otherwise noted).

On May 23, 2014, there were:

• 95,614,160 shares of ESRT common stock outstanding, 94,341,093 of which represent Class A common stock, 150,937 of which represent restricted Class A common stock, and 1,122,130 of which represent Class B common stock (each of which may be exchanged on a one-for-one basis for shares of our Class A common stock);

• 150,323,857 OP Units outstanding, consisting of: (i) 46,134,135 Series ES OP Units, 12,570,434 Series 60 OP Units, 6,578,014 Series 250 OP Units, and 83,674,709 Series PR OP Units, each of which may be exchanged for cash, or at our general partner’s option, shares of ESRT Class A common stock on a one-for-one basis beginning on October 8, 2014; and (ii) 1,366,565 LTIP units issued pursuant to our Equity Incentive Plan, each of which, upon the satisfaction of certain conditions, is convertible into operating partnership units.

Unless otherwise indicated, all shares are owned directly, and the indicated person has sole voting and investment power. Unless otherwise indicated in the footnotes to the table below, the business address of the stockholders listed below is the address of our principal executive office, Empire State Realty Trust, Inc., One Grand Central Place, 60 East 42nd Street, New York, New York 10165.

Name	Number of Shares of Common Stock Beneficially Owned(1)		Percent of All Shares of Common Stock(1)			Number of Shares of Common Stock and Operating Partnership Units Beneficially Owned(2)		Percentage of All Shares of Common Stock and Operating Partnership Units(2)
Anthony E. Malkin(3)		29,515,039		19.6	%		29,750,388		12.1	%
William H. Berkman		25,000		*			36,538		*
Alice M. Connell		—		*			11,538		*
Thomas J. DeRosa		—		*			11,538		*
Steven J. Gilbert		20,000		*			31,538		*
S. Michael Giliberto		1,500		*			13,038		*
Lawrence E. Golub(4)		130,000		*			141,538		*
David A. Karp		—		*			141,876		*
Thomas P. Durels		120,350		*			483,545		*
Thomas N. Keltner, Jr.(5)		—		*			669,470		*
All directors and executive officers as a group (10 persons)		29,811,899		19.8	%		31,291,007		12.7	%

*	Represents less than 1%.
(1)	For purposes of this column, ownership of each share of Class B common stock is treated as 50 shares of Class A common stock. The number of shares of common stock outstanding is based on 150,598,530 votes, the aggregate number of votes that may be cast by our common stockholders

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	(i.e., each share of Class B common stock is treated as 50 shares of Class A common stock for this purpose). The number of shares of common stock outstanding excludes operating partnership units and LTIP units which are not convertible into shares of Class A common stock.
(2)	Includes LTIP units which are not convertible into operating partnership units. The LTIP units included in the table are subject to time or performance based vesting conditions.
(3)	Includes 9,406 shares of Class A common stock, 538,578 shares of Class B common stock and 26,390,300 operating partnership units held by: (i) family trusts and entities for which Anthony E. Malkin has sole voting and investment power as sole manager or sole trustee, as applicable, or Anthony E. Malkin and his wife have shared voting and investment power as managers or trustees, as applicable, (ii) family trusts for the benefit of Anthony E. Malkin’s children and/or (iii) Anthony E. Malkin’s wife; and of which, in each case, Anthony E. Malkin disclaims beneficial ownership of such shares and units except to the extent of his pecuniary interest therein. Operating partnership units beneficially owned by Anthony E. Malkin are comprised only of Series PR operating partnership units and LTIP units.
(4)	These shares are directly owned by Whitehall Capital Investors IV, LLC for the benefit of Mr. Golub, and are held in a pledged account.
(5)	Includes 128,740 operating partnership units held by Thomas N. Keltner, Jr. Revocable Trust dated February 23, 2008, for which Thomas N. Keltner, Jr. is the trustee and 328,717 operating partnership units held by Paula S. Keltner Revocable Trust dated March 1, 2008, for which the Thomas N. Keltner, Jr.’s wife is the trustee.

There have been no purchase or sale transactions in the OP Units by the Company or its executive officers and directors in the 60 days preceding the date of this Offer to Exchange.

RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS

The following table sets forth our ratio of earnings to combined fixed charges and preferred distributions for the periods indicated:

	(The Company)				(Predecessor)
	Three Months Ended March 31, 2014		Period from October 7, 2013 through December 31, 2013		Period from January 1, 2013 through October 6, 2013		Year Ended December 31, 2012
Ratio of Earnings to Combined Fixed Charges		1.78		*		0.04		1.82

*

Earnings (as defined below) were insufficient to cover fixed charges (as defined below) by $115,985,000 for the period from October 7, 2013 through December 31, 2013.

Earnings have been calculated by adding fixed charges to income from continuing operations before adjustment for equity in net income of non-controlled entities plus distributions from non-controlled entities and excluding the gain on consolidation of non-controlled entities. Fixed charges consist of interest expense and amortization of deferred financing costs. For all periods, we computed the ratio of earnings to combined fixed charges and preferred distributions by dividing earnings by fixed charges. We had not issued any preferred units in any period, and therefore there were no preferred distributions included in our calculation of ratios of earnings to combined fixed charges and preferred distributions for these periods.

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MARKET PRICE OF AND DISTRIBUTIONS ON THE OP UNITS AND
CLASS A COMMON SOCK

OP Units

Prices of the OP Units may fluctuate greatly and holders are urged to obtain current information with respect to the market prices for the OP Units.

Series ES OP Units

Series ES OP Units began trading on the NYSE Arca under the symbol “ESBA” on October 11, 2013. As of May 23, 2014 there were 46,134,135 units of Series ES OP Units outstanding. The following table sets forth, for the periods indicated, the high and low sales prices per unit and distributions per unit of the Series ES OP Units:

	Sales Prices Per Unit						Distributions
	High			Low
2014
April 1, 2014 to May 23, 2014		$	15.99		$	12.43			—
First Quarter ended March 31, 2014			14.49			12.83		$	0.0850
2013
October 11, 2013 to December 31, 2013		$	24.68		$	12.05		$	0.0795

On May 23, 2014, the closing sales price of Series ES OP Units on the NYSE Arca was $15.50 per unit.

Series 60 OP Units

Series 60 OP Units began trading on the NYSE Arca under the symbol “OGCP” on October 11, 2013. As of May 23, 2014 there were 12,570,434 units of Series 60 OP Units outstanding. The following table sets forth, for the periods indicated, the high and low sales prices per unit and distributions per unit of the Series 60 OP Units:

	Sales Prices Per Unit						Distributions
	High			Low
2014
April 1, 2014 to May 23, 2014		$	15.75		$	11.85			—
First Quarter ended March 31, 2014			14.30			13.00		$	0.0850
2013
October 11, 2013 to December 31, 2013		$	18.50		$	11.20		$	0.0795

On May 23, 2014, the last reported closing sales price of Series 60 OP Units on the NYSE Arca was $15.46 per unit.

Series 250 OP Units

Series 250 OP Units began trading on the NYSE Arca under the symbol “FISK” on October 11, 2013. As of May 23, 2014 there were 6,578,014 units of Series 250 OP Units outstanding. The following table sets forth, for the periods indicated, the high and low sales prices per unit and distributions per unit of the Series 250 OP Units:

	Sales Prices Per Unit						Distributions
	High			Low
2014
April 1, 2014 to May 23, 2014		$	15.75		$	12.72			—
First Quarter ended March 31, 2014			15.00			12.12		$	0.0850
2013
October 11, 2013 to December 31, 2013		$	15.04		$	11.70		$	0.0795

On May 23, 2014, the last reported closing sales price of Series 250 OP Units on the NYSE Arca was $15.58 per unit.

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Our traded OP Units began trading on the NYSE Arca on October 11, 2013. As a result, we have not set forth quarterly information with respect to the high and low sales prices for our traded OP Units and the dividends declared on our traded OP Units for the two most recent fiscal years. From October 2, 2013 through October 11, 2013, our traded OP Units were traded on the NYSE. The high and low sales prices for our traded OP Units during this period were as follows: (i) Series ES OP Units, high - $84.50 and low - $13.50; (ii) Series 250 OP Units, high - $29.00 and low - $12.75; and Series 60 OP Units, high - $36.40 and low - $12.60. Prior to October 2, 2013, OP Units had not been issued, and there was no public market for OP Units.

If the Exchange Offer is successfully completed, the extent of the public market for our traded OP Units and the availability of such quotations would depend upon the number of holders and/or the aggregate market value of our traded OP Units remaining at such time, the interest in maintaining a market in our traded OP Units on the part of securities firms and other factors.

Series PR OP Units

Series PR OP Units are not listed on any exchange and are not traded. As of May 23, 2014, there were 83,674,709 Series PR OP Units outstanding. The following table sets forth, for the periods indicated, the distributions per unit of the Series PR OP Units:

	Distributions
2014
April 1, 2014 to May 23, 2014			—
First Quarter ended March 31, 2014		$	0.0850
2013
October 8, 2013 to December 31, 2013		$	0.0795

ESRT Class A Common Stock

ESRT Class A common stock began trading on the New York Stock Exchange under the symbol “ESRT” on October 2, 2013. As of May 23, 2014 there were 94,492,030 shares of ESRT Class A common stock outstanding (including 150,937 restricted shares). The following table sets forth, for the periods indicated, the high and low sales prices per unit and dividends per share of the ESRT Class A common stock:

	Sales Prices Per Unit						Distributions
	High			Low
2014
April 1, 2014 to May 23, 2014		$	17.11		$	14.60			—
First Quarter ended March 31, 2014		$	15.53		$	14.08		$	0.0850
2013
October 2, 2013 to December 31, 2013		$	15.61		$	12.65		$	0.0795

On May 23, 2014, the closing sales price of ESRT Class A common stock on the New York Stock Exchange was $16.62 per share.

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COMPARISON OF RIGHTS BETWEEN THE OP UNITS AND THE PREFERRED UNITS

The following briefly summarizes the material differences between the rights of holders of OP Units and of holders of the Preferred Units to be issued in the Exchange Offer. See “Description of the Preferred Units” and “Description of the Partnership Agreement” for more information on the rights of the OP Units and the Preferred Units. The discussion below is a summary and is qualified in its entirety by reference to our operating partnership agreement, applicable Delaware law and other documents referred to herein. We urge you to read these documents for a more complete understanding of the differences between the OP Units and the Preferred Units.

Governing Documents

OP Units: The rights of holders of OP Units are set forth in our operating partnership agreement and Delaware law.

Preferred Units: The rights of holders of Preferred Units will be set forth in our operating partnership agreement (including the partnership unit designation establishing the Preferred Units) and Delaware law.

Distributions

OP Units: Subject to the preferential rights of any other class or series of units of limited partnership interest, including the Preferred Units, holders of Series ES OP Units, Series 60 OP Units, Series 250 OP Units and Series PR OP Units are entitled to receive distributions, as and when declared by the board of directors of our general partner, out of legally available funds. See “Description of the Partnership Agreement—Distributions” for more information on the dividend rights of the OP Units under our operating partnership agreement.

Preferred Units: Holders of the Preferred Units will be entitled to receive cumulative preferential annual cash distributions of $0.60 per Preferred Unit, when, as and if declared by the board of directors of our general partner out of legally available funds for such purpose. Distributions will be payable quarterly in arrears on same day on which quarterly distributions on OP Units are paid, which is currently the last day of each of March, June, September and December (or, if not a business day, the next succeeding business day). Distributions on the Preferred Units will accrue whether or not we have earnings, whether or not there are funds legally available for the payment of such distributions, and whether or not distributions are declared. Distributions on the Preferred Units will begin to accrue from July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014). See “Description of the Preferred Units” for more information on the distribution rights of the Preferred Units under our operating partnership agreement.

Ranking

OP Units: The OP Units rank junior with respect to distribution rights and the distribution of assets upon our liquidation, dissolution or winding up to the Preferred Units.

Preferred Units: With respect to distribution rights and rights upon our voluntary or involuntary liquidation, dissolution or winding up, the Preferred Units rank (i) senior to all classes or series of our common units, including the OP Units and to all classes or series of units now or hereafter authorized, issued or outstanding, the terms of which specifically provide that such units rank junior to the Preferred Units; (ii) on parity with any class or series of units expressly designated as ranking on parity with the Preferred Units; and (iii) junior to any class or series of units expressly designated as ranking senior to the Preferred Units. The Preferred Units will also rank junior in right of payment to the Company’s other existing and future debt obligations.

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Voting Rights

OP Units: Each outstanding OP Unit entitles the holder thereof to one vote on all matters submitted to a vote of unitholders.

Preferred Units: So long as any Preferred Units remain outstanding, subject to limited exceptions, we will be required to obtain approval of at least a majority of the then-outstanding Preferred Units in order to amend, alter or repeal our operating partnership agreement in a way that materially and adversely affects the Preferred Units. Other than described above, holders of the Preferred Units will have no voting rights. See “Description of the Preferred Units—Voting Rights” for more information on the voting rights of the Preferred Units under our operating partnership agreement.

Mandatory Redemption Rights

OP Units: We generally have no right to redeem our OP Units.

Preferred Units: Except in certain circumstances relating to the preservation of our general partner’s status as a REIT for United States federal income tax purposes, we may not redeem the Preferred Units. In addition, if in the future the Company or its general partner is party to certain fundamental capital transactions, such as a change of control, then the Company will have the right, at its option, to redeem the Preferred Units, in whole but not in part, for cash at a redemption price equal to 200% of their stated liquidation preference, plus all accrued and unpaid distributions (whether or not declared) thereon up to, but excluding the date fixed for redemption, without interest.

See “Description of the Preferred Units—Redemption” for more information on the redemption provisions of the Preferred Units under our operating partnership agreement.

Holder Redemption or Conversion Rights

OP Units: 12 months after becoming a holder of OP Units (including any LTIP units that are converted into Series PR OP Units), each holder will have the right, subject to the terms and conditions set forth in our operating partnership agreement, to require the operating partnership to redeem all or a portion of the OP Units held by such holder in exchange for a cash amount equal to the number of tendered OP Units multiplied by the price of a share of ESRT’s Class A common stock (determined in accordance with, and subject to adjustment under, the terms of the operating partnership agreement), unless the terms of such OP Units or a separate agreement entered into between the operating partnership and the holder of such OP Units provide that they are not entitled to a right of redemption or provide for a shorter or longer period before such holder may exercise such right of redemption or impose conditions on the exercise of such right of redemption. On or before the close of business on the fifth business day after we receive a notice of redemption, our general partner may, in its sole and absolute discretion, but subject to the restrictions on the ownership of the general partner’s common stock imposed under its articles of incorporation and the transfer restrictions and other limitations thereof, elect to acquire some or all of the tendered OP Units from the tendering holder in exchange for shares of ESRT Class A common stock, based on an exchange ratio of one share of ESRT Class A common stock for each OP Unit (subject to anti-dilution adjustments provided in our operating partnership agreement). See “Description of the Partnership Agreement—Redemption Rights.”

Preferred Units: Preferred Units will not be convertible into or exchangeable for any other partnership interests or other property or securities of the operating partnership or any other entity, including our general partner.

Restrictions on Ownership and Transfer

OP Units: To the extent they remain listed on a national securities exchange, Series ES OP Units, Series 60 OP Units and Series 250 OP Units generally are freely transferable, and any transferee of such units will be admitted to the operating partnership with respect to such units.

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Notwithstanding the foregoing, transfers of Series ES OP Units, Series 60 OP Units and Series 250 OP Units and admission of transferees to the operating partnership are subject to certain limitations described in the operating partnership agreement. With certain limited exceptions, holders of Series PR OP Units may not transfer their OP Units, in whole or in part, without our general partner’s prior written consent, which consent may be withheld in our general partner’s sole and absolute discretion. Except with our general partner’s consent to the admission of the transferee as a limited partner with respect to Series PR OP Units, no transferee of such units shall have any rights by virtue of the transfer other than the rights of an assignee, and will not be entitled to vote or effect a redemption with respect to such Series PR OP Units in any matter presented to the limited partners for a vote. Transfers of Series PR OP Units, whether or not the consent of our general partner is required, will be effective as of the first day of the next succeeding fiscal quarter of the operating partnership. See “Description of the Partnership Agreement—Transferability of Operating Partnership Units; Extraordinary Transactions.”

Preferred Units: Generally, Preferred Units will be freely transferable, and any transferee of such Preferred Units will be admitted to the operating partnership with respect to such Preferred Units. Notwithstanding the foregoing, transfers of Preferred Units and admission of transferees to the operating partnership are subject to certain limitations described in the operating partnership agreement. Transfers of Preferred Units will be effective as of the first day of the next succeeding fiscal quarter of the operating partnership. See “Description of the Preferred Units—Transfer.”

Listing

OP Units: Series ES OP Units, Series 60 OP Units and Series 250 OP Units are listed on the NYSE Arca. Series PR OP Units are not listed on any exchange and are not traded. ESRT’s Class A common stock is listed on the NYSE.

Preferred Units: Currently, no market exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market.

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DESCRIPTION OF THE PREFERRED UNITS

The following is a summary of the material terms of the Preferred Units. The following description does not purport to be complete and is subject to and qualified in its entirety by reference to applicable provisions of the Delaware Revised Uniform Limited Partnership Act, as amended, and our operating partnership agreement (including the partnership unit designation establishing the Preferred Units). See “Where You Can Find More Information.”

General

The Private Perpetual Preferred Units are a new series of units in the Company. Upon completion of the Exchange Offer, there will be up to 15,000,000 Preferred Units issued and outstanding. Holders of the Preferred Units will be entitled to receive cumulative preferential annual cash distributions of $0.60 per Preferred Unit, when, as and if declared by the board of directors of our general partner out of legally available funds for such purpose.

Currently, no market exists for the Preferred Units, and we do not intend to apply to list the Preferred Units on any stock exchange or in any trading market

We have appointed American Stock Transfer & Trust Company, LLC as the registrar and transfer agent for the Preferred Units. The address of American Stock Transfer & Trust Company, LLC is 6201 15thAvenue, Brooklyn, New York 11219.

Distributions

Distributions will be payable quarterly in arrears on the same day on which quarterly distributions on OP Units are paid, which is currently the last day of each of March, June, September and December (or, if not a business day, the next succeeding business day). If no distributions are paid to holders of OP Units for an applicable quarterly distribution period, the distributions on the Preferred Units for such period will be the last day of each of March, June, September and December (or, if not a business day, the next succeeding business day). Distributions on the Preferred Units will accrue whether or not we have earnings, whether or not there are funds legally available for the payment of such distributions, and whether or not distributions are declared. Distributions on the Preferred Units will begin to accrue and be cumulative from, and including, July 1, 2014, regardless of the actual date of issuance (unless the Exchange Offer settlement date occurs after the record date for distributions on OP Units for the third quarter of 2014, in which case distributions on the Preferred Units will begin to accrue from October 1, 2014).

Holders of the Preferred Units will not be entitled to any distribution, whether payable in cash, property or shares of stock, in excess of full cumulative distributions on the Preferred Units. Any distribution payment made on the Preferred Units will first be credited against the earliest accrued but unpaid distributions due with respect to such units which remain payable.

Distributions will be payable to the holder(s) of record of Preferred Units as they appear in our records on the applicable record date established by the board of directors of our general partner for regular quarterly distributions to holders of OP Units; provided, however, that not more than four distributions on the Preferred Units per year will be made to holders of Preferred Units. The amount of any distributions made on the Preferred Units for any period other than a full quarter will be computed on the basis of a 360-day year consisting of twelve 30-day months. Notwithstanding any provision to the contrary contained herein, each outstanding Preferred Unit will be entitled to receive a distribution with respect to any distribution payment date equal to the amount paid with respect to each other Preferred Unit that is outstanding on such date.

Holders of the Preferred Units will not be entitled to any distribution, whether payable in cash, property or shares of stock, in excess of full cumulative distributions on the Preferred Units. Any distribution payment made on the Preferred Units will first be credited against the earliest accrued but unpaid distributions due with respect to such units which remain payable.

Except as otherwise provided in our partnership agreement, unless either (i) the full amount of accrued distributions on the Preferred Units have been or contemporaneously are declared and paid

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or (ii) a sum sufficient for the payment thereof is set apart for payment (without the need for any declaration) for all past payment periods and we project, in good faith, that the cash available for distributions to holders of Preferred Units as of the next payment date will be sufficient to fund the full payment of the accrued distributions at such time on the Preferred Units and all other classes or series of our partnership units ranking, as to distributions, on parity with the Preferred Units, no distributions or other payments will be declared and paid, and no other distribution of cash or other property may be declared and made, directly or indirectly, on or with respect to, any OP Units or any other class or series of our partnership units ranking, as to distributions, on parity with or junior to the Preferred Units for any period, nor will any OP Units or any other class or series of our partnership units ranking, as to distributions or upon liquidation, on parity with or junior to the Preferred Units be redeemed, purchased or otherwise acquired for any consideration, nor will any funds be paid or made available for a sinking fund for the redemption of such units, and no other distribution of cash or other property may be made, directly or indirectly, on or with respect thereto by us.

When distributions are not paid in full (and a sum sufficient for such full payment is not so set apart) on the Preferred Units and on any other class or series of our partnership units ranking, as to distributions, on parity with the Preferred Units, all distributions declared upon the Preferred Units and all distributions declared upon each such other class or series of our partnership units ranking, as to distributions, on parity with the Preferred Units will be declared pro rata so that the amounts of distributions made per Preferred Unit and distributions declared on such other class or series of partnership unit will in all cases bear to each other the same ratio that accrued distributions per Preferred Unit and accrued distributions for such other class or series of partnership unit bear to each other. No interest, or sum of money in lieu of interest, will be payable in respect of any payments on the Preferred Units which may be in arrears.

Ranking

The Preferred Units will, with respect to distribution rights and rights upon voluntary or involuntary liquidation, dissolution or winding up of the Company, rank:

• senior to all classes or series of our common units, including the OP Units, and to all classes or series of partnership units now or hereafter authorized, issued or outstanding, the terms of which specifically provide that such units rank junior to the Preferred Units;

• on parity with any other class or series of our partnership units, if the holders of such other class or series of our partnership units and the Preferred Units are entitled to the receipt of preferential payments or of amounts distributable upon liquidation, dissolution or winding up in proportion to their respective amounts of accrued and unpaid preferential payments per partnership unit or liquidation preference, without preference or priority one over the other; and

• junior to any class or series of our partnership units, if the holders of such class or series of partnership units are entitled to the receipt of preferential payments and of amounts distributable upon liquidation, dissolution or winding up, as the case may be, in preference or in priority to the holders of the Preferred Units.

The Preferred Units will also rank junior in right of payment to the Company’s other existing and future debt obligations.

Liquidation Rights

Upon any voluntary or involuntary liquidation, dissolution or winding up of the Company, before any distribution or payment shall be made to holders of OP Units or any other class or series of partnership units ranking, as to rights upon any voluntary or involuntary liquidation, dissolution or winding up of the Company, junior to the Preferred Units, the holders of Preferred Units will be entitled to be paid out of the assets of the Company legally available for distribution to its unitholders, after payment of or provision for the debts and other liabilities of the Company, a

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liquidation preference of $16.62 per unit, plus an amount equal to any accrued and unpaid distributions (whether or not declared) up to, but excluding the date of payment.

In the event that, upon such voluntary or involuntary liquidation, dissolution or winding up, the available assets of the Company are insufficient to pay the full amount of the Preferred Unit liquidation preference on all outstanding Preferred Units and the corresponding amounts payable on all other classes or series of partnership units ranking, as to liquidation rights, on parity in the distribution of assets with the Preferred Units, then the holders of the Preferred Units and the holders of each such other class or series will share ratably in any such distribution of assets in proportion to the full liquidating distributions to which they would otherwise be respectively entitled.

After payment of the full amount of the liquidating distributions to which the holders of the Preferred Units would be entitled pursuant to the above, the holders of the Preferred Units will have no right or claim to any of the remaining assets of the Company. The consolidation or merger of the Company with or into any other corporation, trust or entity, or the voluntary sale, lease, transfer or conveyance of all or substantially all of the property or business of the Company, will not be deemed to constitute a liquidation, dissolution or winding up of the Company.

Redemption

Except in certain circumstances relating to the preservation of our general partner’s status as a REIT for United States federal income tax purposes, the Company may generally not redeem the Preferred Units.

If the Company or its general partner is a party to any transaction (including without limitation a merger, consolidation, unit exchange or other business combination or reorganization, or sale of all or substantially all of the Company’s assets, in each case) as a result of which OP Units are exchanged for or converted into the right, or the holders of OP Units are otherwise entitled to receive cash, securities or other property or any combination thereof, then in connection with such transaction the Company will have the right, at its option, to redeem the Preferred Units, in whole but not in part, for cash at a redemption price equal to 200% of their stated liquidation preference, plus all accrued and unpaid distributions (whether or not declared) thereon up to, but excluding the date fixed for redemption, without interest. To exercise this redemption right, the Company must mail the relevant notice of redemption to holders of Preferred Units not earlier than the 60 days prior to nor later than 90 days after the effective date of such transaction.

In addition, in the event of the liquidation, dissolution or winding up of the Company, the general partner will have the right to redeem, on any payment date established by the general partner for liquidating distributions, Preferred Units in consideration for the Preferred Unit liquidation preference.

Voting Rights.

Holders of the Preferred Units will only have those voting rights required from time to time by non-waivable provisions of applicable law, if any, and the limited additional voting rights described below.

Except as otherwise provided in our partnership agreement, so long as any Preferred Units remain outstanding, the affirmative vote or consent of the holders of a majority of the Preferred Units outstanding at the time (voting separately as a class), given in person or by proxy, either in writing or at a meeting, will be required to amend, alter or repeal the provisions of our partnership agreement, whether by merger, consolidation, transfer or conveyance of all or substantially all of its assets or otherwise, so as to materially and adversely affect the rights, preferences, privileges or voting powers of the Preferred Units. These voting provisions will not apply if, at or prior to such time, all outstanding Preferred Units will have been redeemed or (i) notice of redemption of all of the outstanding Preferred Units has been given, (ii) the funds necessary for such redemption have been set aside by the Company in trust for the benefit of the holders of such Preferred Units so called for redemption, and (iii) irrevocable instructions have been given to pay the redemption price and all accrued and unpaid distributions thereon.

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Other than as described above, holders of Preferred Units will not be entitled to vote with respect to (a) any increase in the total number of OP Units or Preferred Units, or the creation or issuance of any other class or series of partnership interests. Other than as described above, holders of Preferred Units will not have any voting rights with respect to the taking of any partnership action by the general partner, regardless of the effect that such partnership action may have upon the powers, preferences, voting power or other rights or privileges of the Preferred Units.

On any matter in which the Preferred Units may vote, each Preferred Unit will be entitled to one vote per $16.62 of liquidation preference (excluding amounts in respect of accumulated and unpaid dividends).

Conversion

The Preferred Units will not be convertible into or exchangeable for any other partnership interests or other property or securities of the Company or any other entity, including our general partner.

Transfers

Generally, Preferred Units will be freely transferable, and any transferee of such Preferred Units will be admitted to the operating partnership with respect to such Preferred Units. Notwithstanding the foregoing, transfers of Preferred Units and admission of transferees to the operating partnership are subject to certain limitations described in the operating partnership agreement. Transfers of Preferred Units will be effective as of the first day of the next succeeding fiscal quarter of the operating partnership.

No Maturity or Sinking Fund

The Preferred Units will represent perpetual equity interests in us and, unlike our indebtedness, will not give rise to a claim for payment of a principal amount at a particular date. No sinking fund has been established for the retirement or redemption of Preferred Units.

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DESCRIPTION OF THE PARTNERSHIP AGREEMENT

The following is a summary of the material terms of the operating partnership units and the material provisions of the operating partnership agreement. The following description does not purport to be complete and is subject to and qualified in its entirety by reference to applicable provisions of the Delaware Revised Uniform Limited Partnership Act, as amended, and the operating partnership agreement. See “Where You Can Find More Information.” For the purposes of this section, references to the “operating partnership” refer to Empire State Realty OP, L.P. and references to the “general partner” or “ESRT” refer to Empire State Realty Trust, Inc.

General

We are a Delaware limited partnership that was formed on November 28, 2011. ESRT is our sole general partner. Pursuant to the operating partnership agreement, ESRT has, subject to certain protective rights of limited partners described below, full, exclusive and complete responsibility and discretion in the management and control of the operating partnership, including the ability to cause the operating partnership to enter into certain major transactions including a merger of the operating partnership or a sale of substantially all of the assets of the operating partnership. The limited partners have no power to remove the general partner without the general partner’s consent.

ESRT may not conduct any business without the consent of a majority of the limited partners other than in connection with the ownership, acquisition and disposition of partnership interests, the management of the business of the operating partnership, ESRT’s operation as a reporting company with a class of securities registered under the Exchange Act, the offering, sale syndication, private placement or public offering of stock, bonds, securities or other interests, financing or refinancing of any type related to the operating partnership or its assets or activities and such activities as are incidental to those activities discussed above. In general, ESRT must contribute any assets or funds that ESRT acquires to the operating partnership in exchange for additional partnership interests. ESRT may, however, in ESRT’s sole and absolute discretion, from time to time hold or acquire assets in ESRT’s own name or otherwise other than through the operating partnership so long as ESRT takes commercially reasonable measures that the economic benefits and burdens of such property are otherwise vested in the operating partnership. ESRT and its affiliates may also engage in any transactions with the operating partnership on such terms as ESRT may determine in its sole and absolute discretion.

ESRT is under no obligation to give priority to the separate interests of the limited partners or ESRT’s stockholders in deciding whether to cause the operating partnership to take or decline to take any actions. If there is a conflict between the interests of ESRT’s stockholders on the one hand and the limited partners on the other, ESRT will endeavor in good faith to resolve the conflict in a manner not adverse to either ESRT’s stockholders or the limited partners. ESRT is not liable under the operating partnership agreement to the operating partnership or to any partner for monetary damages for losses sustained, liabilities incurred, or benefits not derived by limited partners in connection with such decisions, provided that ESRT has acted in good faith.

Substantially all of ESRT’s business activities, including all activities pertaining to the acquisition and operation of properties, must be conducted through the operating partnership, and the operating partnership must be operated in a manner that will enable ESRT to satisfy the requirements for qualification as a REIT.

Operating Partnership Units

Interests in the operating partnership are denominated in units of limited partnership interest. The operating partnership has two classes of limited partnership interest—operating partnership units and LTIP units. The operating partnership units have four series—Series PR operating partnership units (“Series PR OP Units”), Series ES operating partnership units (“Series ES OP Units”), Series 60 operating partnership units (“Series 60 OP Units”) and Series 250 operating partnership units (“Series 250 OP Units,” and together with Series PR OP Units, Series ES OP Units and Series 60 OP Units, the “OP Units”). In conjunction with ESRT’s initial public offering and consolidation,

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Series ES OP Units were issued to participants in Empire State Building Associates L.L.C., Series 60 OP Units were issued to participants in 60 East 42nd St. Associates L.L.C. and Series 250 OP Units were issued to participants in 250 West 57th St. Associates L.L.C., in each case except for the lineal descendants of Lawrence A. Wien, including Peter L. Malkin and Anthony E. Malkin (including spouses of such descendants), any estates of any of the foregoing, any trusts now or hereafter established for the benefit of any of the foregoing, or any corporation, partnership, limited liability company or other legal entity controlled by Anthony E. Malkin for the benefit of any of the foregoing. Series ES OP Units, Series 60 OP Units and Series 250 OP Units are listed on the NYSE Arca under the symbols “ESBA,” “OGCP,” and “FISK,” respectively. Series PR OP Units were issued to the participants in the private entities and the lineal descendants of Lawrence A. Wien and are not listed on a national securities exchange. ESRT only holds Series PR OP Units. Other than with respect to the transfer restrictions applicable to Series PR OP Units as described below under “—Transferability of Operating Partnership Units; Extraordinary Transactions” and the fact that Series PR OP Units are not listed on a national securities exchange, each of the series of OP Units has identical rights as to distributions, liquidation and other rights as a limited partner in the operating partnership. The four series vote together as a single class on all matters on which the holders of OP Units have the right to approve, as described below. The separate series were created because there are unique U.S. federal income tax consequences to a participant that receives listed operating partnership units of a particular series (as compared to ownership of operating partnership units of another series) depending on the entity in which they had an interest and the tax aspects of the property contributed by such entity. By issuing the operating partnership units in separate series, each of the operating partnership units in a series that trade on the NYSE Arca are expected to be uniform with other operating partnership units of that series with regard to distributions, liquidation and other rights as a limited partner in the operating partnership. ESRT may, without the consent of the limited partners, delist some or all of the operating partnership units from the national securities exchange on which such operating partnership units are admitted to trading.

Management Liability and Indemnification

Neither ESRT nor ESRT’s directors and officers are liable to the operating partnership, the limited partners or assignees for losses sustained, liabilities incurred or benefits not derived as a result of errors in judgment or mistakes of fact or law or of any act or omission, so long as such person acted in good faith. The operating partnership agreement provides for indemnification of ESRT, its affiliates and each of ESRT’s respective officers, directors, employees and any persons ESRT may designate from time to time in its sole and absolute discretion, including present and former members, managers, shareholders, directors, limited partners, general partners, officers or controlling persons of Malkin Holdings, LLC, to the fullest extent permitted by applicable law against any and all losses, claims, damages, liabilities (whether joint or several), expenses (including, without limitation, attorneys’ fees and other legal fees and expenses), judgments, fines, settlements and other amounts arising from any and all claims, demands, actions, suits or proceedings, civil, criminal, administrative or investigative, that relate to the operations of the operating partnership, provided that the operating partnership will not indemnify such person, for (i) willful misconduct or a knowing violation of the law, (ii) any transaction for which such person received an improper personal benefit in violation or breach of any provision of the operating partnership agreement, or (iii) in the case of a criminal proceeding, the person had reasonable cause to believe the act or omission was unlawful, as set forth in the operating partnership agreement (subject to the exceptions described below under “—Fiduciary Responsibilities”).

Fiduciary Responsibilities

ESRT’s directors and officers have duties under applicable Maryland law to manage ESRT in a manner consistent with ESRT’s best interests. At the same time, the general partner of the operating partnership has fiduciary duties to manage the operating partnership in a manner beneficial to the operating partnership and its partners. ESRT’s duties, as the general partner, to the operating partnership and its limited partners, therefore, may come into conflict with the duties of ESRT’s directors and officers to ESRT and its stockholders. ESRT will be under no obligation to

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give priority to the separate interests of the limited partners of the operating partnership or ESRT’s stockholders in deciding whether to cause the operating partnership to take or decline to take any actions. The limited partners of the operating partnership have agreed that in the event of a conflict in the duties owed by ESRT’s directors and officers to ESRT and its stockholders and the fiduciary duties owed by ESRT, in its capacity as general partner of the operating partnership, to such limited partners, ESRT will fulfill its fiduciary duties to such limited partners by acting in the best interests of ESRT’s stockholders.

The limited partners of the operating partnership expressly acknowledged that ESRT is acting for the benefit of the operating partnership, the limited partners and ESRT’s stockholders collectively.

Distributions

The operating partnership agreement provides that ESRT may cause the operating partnership to make quarterly (or more frequent) distributions of all, or such portion as ESRT may in ESRT’s sole and absolute discretion determine, of available cash (which is defined to be cash available for distribution as determined by the general partner) (i) first, with respect to any operating partnership units and LTIP units that are entitled to any preference in accordance with the rights of such operating partnership unit or LTIP unit (and, within such class, pro rata according to their respective percentage interests) and (ii) second, with respect to any operating partnership units and LTIP units that are not entitled to any preference in distribution, in accordance with the rights of such class of operating partnership unit or LTIP units (and, within such class, pro rata in accordance with their respective percentage interests).

Allocations of Net Income and Net Loss

Net income and net loss of the operating partnership are determined and allocated with respect to each fiscal year of the operating partnership as of the end of the year. Except as otherwise provided in the operating partnership agreement, an allocation of a share of net income or net loss is treated as an allocation of the same share of each item of income, gain, loss or deduction that is taken into account in computing net income or net loss. Except as otherwise provided in the operating partnership agreement, net income and net loss are allocated to the holders of operating partnership units or LTIP units holding the same class or series of operating partnership units or LTIP units in accordance with their respective percentage interests in the class or series at the end of each fiscal year. In particular, upon the occurrence of certain specified events, the operating partnership will revalue its assets and any net increase in valuation will be allocated first to the holders of LTIP units to equalize the capital accounts of such holders with the capital accounts of operating partnership unit or LTIP unitholders. The operating partnership agreement contains provisions for special allocations intended to comply with certain regulatory requirements, including the requirements of Treasury Regulations Sections 1.704-1(b) and 1.704-2. Except as otherwise required by the operating partnership agreement or the Code and the Treasury Regulations, each operating partnership item of income, gain, loss and deduction is allocated among the limited partners of the operating partnership for U.S. federal income tax purposes in the same manner as its correlative item of book income, gain, loss or deduction is allocated pursuant to the operating partnership agreement. In addition, under Section 704(c) of the Code, items of income, gain, loss and deduction with respect to appreciated or depreciated property which is contributed to a partnership, such as the operating partnership, in a tax-free transaction must be specially allocated among the partners in such a manner so as to take into account such variation between tax basis and fair market value. The operating partnership will allocate tax items to the holders of operating partnership units or LTIP units taking into consideration the requirements of Section 704(c). See “Certain Federal Income Tax Considerations.”

ESRT, as the general partner of the operating partnership, has sole discretion to ensure that allocations of income, gain, loss and deduction of the operating partnership are in accordance with the interests of the partners as determined under the Code and all matters concerning allocations of tax items not expressly provided for in the operating partnership agreement may be determined by

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ESRT in its sole discretion. In addition, ESRT, as general partner of the operating partnership, may adopt such conventions and methods of accounting for determining asset values, basis and identities of partners for proper administration of the operating partnership and to preserve the uniformity of each series of operating partnership units that are traded on NYSE Arca.

Redemption Rights

After 12 months of becoming a holder of operating partnership units (including any LTIP units that are converted into Series PR OP Units), each limited partner of the operating partnership will have the right, subject to the terms and conditions set forth in the operating partnership agreement, to require the operating partnership to redeem all or a portion of the operating partnership units held by such limited partner in exchange for a cash amount equal to the number of tendered operating partnership units multiplied by the price of a share of ESRT’s Class A common stock (determined in accordance with, and subject to adjustment under, the terms of the operating partnership agreement), unless the terms of such operating partnership units or a separate agreement entered into between the operating partnership and the holder of such operating partnership units provide that they are not entitled to a right of redemption or provide for a shorter or longer period before such limited partner may exercise such right of redemption or impose conditions on the exercise of such right of redemption. On or before the close of business on the fifth business day after ESRT receives a notice of redemption, ESRT may, in ESRT’s sole and absolute discretion, but subject to the restrictions on the ownership of ESRT’s common stock imposed under ESRT’s charter and the transfer restrictions and other limitations thereof, elect to acquire some or all of the tendered operating partnership units from the tendering partner in exchange for shares of ESRT’s Class A common stock, based on an exchange ratio of one share of ESRT’s Class A common stock for each operating partnership unit (subject to anti-dilution adjustments provided in the operating partnership agreement). It is ESRT’s current intention to exercise this right in connection with any exchange of operating partnership units.

Transferability of Operating Partnership Units; Extraordinary Transactions

ESRT will not be able to withdraw voluntarily from the operating partnership or transfer ESRT’s interest in the operating partnership, including ESRT’s limited partner interest, unless the transfer is made in connection with (i) any merger, consolidation or other combination in which, following the consummation of such transaction, the equity holders of the surviving entity are substantially identical to ESRT’s stockholders, (ii) a transfer to a qualified REIT subsidiary or (iii) as otherwise expressly permitted under the operating partnership agreement. The operating partnership agreement permits ESRT to engage in a merger, consolidation or other combination, or sale of substantially all of ESRT’s assets if:

• ESRT receives the consent of a majority in interest of the limited partners (excluding ESRT);

• following the consummation of such transaction, substantially all of the assets of the surviving entity consist of partnership units; or

• as a result of such transaction all limited partners will receive, or will have the right to receive, for each partnership unit an amount of cash, securities or other property equal in value to the greatest amount of cash, securities or other property paid in the transaction to a holder of one share of ESRT’s Class A common stock, provided that if, in connection with the transaction, a purchase, tender or exchange offer shall have been made to and accepted by the holders of more than 50% of the outstanding shares of ESRT’s common stock, each holder of partnership units shall be given the option to exchange its partnership units for the greatest amount of cash, securities or other property that a limited partner would have received had it exercised its redemption right (described above) and received shares of ESRT’s Class A common stock immediately prior to the expiration of the offer.

With certain limited exceptions, the limited partners who own Series PR OP Units or LTIP units may not transfer their interests in the operating partnership, in whole or in part, without ESRT’s prior written consent, which consent may be withheld in ESRT’s sole and absolute

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discretion. Except with ESRT’s consent to the admission of the transferee as a limited partner with respect to Series PR OP Units or LTIP units, no transferee of such units shall have any rights by virtue of the transfer other than the rights of an assignee, and will not be entitled to vote or effect a redemption with respect to such partnership units in any matter presented to the limited partners for a vote. ESRT, as general partner, will have the right to consent to the admission of a transferee of the interest of a limited partner with respect to Series PR OP Units or LTIP units, which consent may be given or withheld by ESRT in ESRT’s sole and absolute discretion. To the extent they remain listed on a national securities exchange, Series ES OP Units, Series 60 OP Units and Series 250 OP Units generally will be freely transferable, and any transferee of such units will be admitted to the partnership with respect to such units. Notwithstanding the foregoing, transfers of operating partnership units and admission of transferees to the partnership are subject to certain limitations described in the partnership agreement.

Issuance of Common Stock and Additional Partnership Interests

Pursuant to the operating partnership agreement, upon the issuance of ESRT’s stock other than in connection with an exchange of operating partnership units, ESRT will generally be obligated to contribute or cause to be contributed the cash proceeds or other consideration received from the issuance to the operating partnership in exchange for, in the case of common stock, operating partnership units or, in the case of an issuance of preferred stock, preferred operating partnership units with designations, preferences and other rights, terms and provisions that are substantially the same as the designations, preferences and other rights, terms and provisions of the preferred stock. In addition, ESRT may cause the operating partnership to issue additional operating partnership units or other partnership interests and to admit additional limited partners to the operating partnership from time to time, on such terms and conditions and for such capital contributions as ESRT may establish in ESRT’s sole and absolute discretion, without the approval or consent of any limited partner, including: (i) upon the conversion, redemption or exchange of any debt, units or other partnership interests or other securities issued by the operating partnership; (ii) for less than fair market value; or (iii) in connection with any merger of any other entity into the operating partnership.

Tax Matters

Pursuant to the operating partnership agreement, the general partner is the tax matters partner of the operating partnership and has certain other rights relating to tax matters. Accordingly, as both the general partner and tax matters partner, ESRT has authority to handle tax audits and to make tax elections under the Code, in each case, on behalf of the operating partnership.

Term

The term of the operating partnership commenced on November 28, 2011 and will continue perpetually, unless earlier terminated in the following circumstances:

• a final and non-appealable judgment is entered by a court of competent jurisdiction ruling that the general partner is bankrupt or insolvent, or a final and non-appealable order for relief is entered by a court with appropriate jurisdiction against the general partner, in each case under any federal or state bankruptcy or insolvency laws as now or hereafter in effect, unless, prior to the entry of such order or judgment, a majority in interest of the remaining outside limited partners agree in writing, in their sole and absolute discretion, to continue the business of the operating partnership and to the appointment, effective as of a date prior to the date of such order or judgment, of a successor general partner;

• an election to dissolve the operating partnership made by the general partner in its sole and absolute discretion, with or without the consent of a majority in interest of the outside limited partners;

• entry of a decree of judicial dissolution of the operating partnership pursuant to the provisions of the Delaware Revised Uniform Limited Partnership Act;

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• the occurrence of any sale or other disposition of all or substantially all of the assets of the operating partnership or a related series of transactions that, taken together, result in the sale or other disposition of all or substantially all of the assets of the operating partnership;

• the redemption (or acquisition by the general partner) of all operating partnership units that the general partner has authorized other than those held by ESRT; or

• the incapacity or withdrawal of the general partner, unless all of the remaining partners in their sole and absolute discretion agree in writing to continue the business of the operating partnership and to the appointment, effective as of a date prior to the date of such incapacity, of a substitute general partner.

Amendments to the Operating Partnership Agreement

Amendments to the operating partnership agreement may only be proposed by the general partner. Generally, the operating partnership agreement may be amended with the general partner’s approval and the approval of the limited partners holding a majority of all outstanding limited partner units (excluding limited partner units held by ESRT or its subsidiaries). Certain amendments that would, among other things, have the following effects, must be approved by each partner adversely affected thereby:

• convert a limited partner’s interest into a general partner’s interest (except as a result of the general partner acquiring such interest);

• modify the limited liability of a limited partner;

• alter the rights of any partner to receive the distributions to which such partner is entitled (subject to certain exceptions);

• alter or modify the redemption rights provided by the operating partnership agreement; or

• alter or modify the provisions governing transfer of the general partner’s partnership interest.

Notwithstanding the foregoing, ESRT will have the power, without the consent of the limited partners, to amend the operating partnership agreement as may be required to:

• add to ESRT’s obligations or surrender any right or power granted to ESRT or any of its affiliates for the benefit of the limited partners;

• reflect the admission, substitution, or withdrawal of partners or the termination of the operating partnership in accordance with the operating partnership agreement and to cause the operating partnership or the operating partnership’s transfer agent to amend its books and records to reflect the operating partnership unit and LTIP unit holders in connection with such admission, substitution or withdrawal;

• reflect a change that is of an inconsequential nature or does not adversely affect the limited partners as such in any material respect, or to cure any ambiguity, correct or supplement any provision in the operating partnership agreement not inconsistent with the law or with other provisions, or make other changes with respect to matters arising under the operating partnership agreement that will not be inconsistent with the law or with the provisions of the operating partnership agreement;

• satisfy any requirements, conditions, or guidelines contained in any order, directive, opinion, ruling or regulation of a U.S. federal or state agency or contained in U.S. federal or state law;

• set forth or amend the designations, preferences, conversion or other rights, voting powers, duties restrictions, limitations as to distributions, qualifications or terms or conditions of redemption of the holders of any additional partnership units issued or established pursuant to the operating partnership agreement;

• reflect such changes as are reasonably necessary for ESRT to maintain or restore ESRT’s qualification as a REIT, to satisfy the REIT requirements or to reflect the transfer of all or any part of a partnership interest among ESRT and any qualified REIT subsidiary or entity that is disregarded as an entity separate from the general partner for U.S. federal income tax purposes;

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• modify either or both the manner in which items of net income or net loss are allocated or the manner in which capital accounts are computed (but only to the extent set forth in the operating partnership agreement, or to the extent required by the Code or applicable income tax regulations under the Code);

• facilitate the trading of Series ES OP Units, Series 60 OP Units or Series 250 OP Units (including any division of such classes or other actions to facilitate the uniformity of tax consequences within each such operating partnership units listed on a national securities exchange);

• comply with any rules, regulation, guideline or requirement of any national securities exchange on which Series ES OP Units, Series 60 OP Units or Series 250 OP Units are or will be listed;

• issue additional partnership interests;

• reflect the admission, substitution, termination or withdrawal of the general partner and limited partners or an increase or decrease in either the general partner’s or limited partner’s DRO Amount (as defined in the operating partnership agreement) in accordance with the operating partnership agreement;

• impose restrictions on the transfer of operating partnership units if the general partner of the operating partnership receives an opinion of counsel reasonably to the effect that such restrictions are necessary in order to comply with any federal or state securities laws or regulations applicable to the operating partnership or the operating partnership units; and

• reflect any other modification to the operating partnership agreement as is reasonably necessary for the business or operations of the operating partnership or the general partner of the operating partnership and which does not otherwise require the consent of each partner adversely affected.

Certain provisions affecting ESRT’s rights and duties as general partner, either directly or indirectly (e.g., restrictions relating to certain extraordinary transactions involving ESRT or the operating partnership) may not be amended without the approval of a majority of the limited partnership units (excluding limited partnership units held by ESRT).

Transfer Agent and Registrar

American Stock Transfer and Trust Company, LLC, Operations Center, Attn: Reorganization Department, 6201 15th Avenue, Brooklyn, New York, 11219, is the transfer agent and registrar for Series ES OP Units, Series 60 OP Units, Series 250 OP Units and Series PR OP Units.

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DESCRIPTION OF ESRT COMMON STOCK

The following is a summary of the rights and preferences of ESRT capital stock. This summary does not purport to be complete and is subject to and is qualified in its entirety by reference to ESRT’s articles of incorporation and bylaws, and by the applicable provisions of Maryland law. See “Where You Can Find More Information.” References to “we” and “our” in this summary refer to Empire State Realty Trust, Inc.

General

ESRT’s charter provides that we may issue up to 400,000,000 shares of Class A common stock, $0.01 par value per share, which we refer to herein as the Class A common stock, up to 50,000,000 shares of Class B common stock, $0.01 par value per share, which we refer to herein as the Class B common stock and, together with the Class A common stock, we refer to herein as the “common stock”, and up to 50,000,000 shares of preferred stock, $0.01 par value per share. Our charter authorizes our board of directors to amend our charter from time to time to increase or decrease the aggregate number of authorized shares of stock or the number of shares of stock of any class or series that we have authority to issue without stockholder approval. As of May 23, 2014, there was an aggregate of approximately 94,492,030 shares of ESRT Class A common stock outstanding (including 150,937 restricted shares), 1,122,130 million shares of Class B common stock issued and outstanding, and no shares of preferred stock issued and outstanding. Under Maryland law, stockholders are not generally liable for our debts or obligations solely as a result of their status as stockholders.

Shares of Common Stock

Subject to the preferential rights of any other class or series of our stock and to the provisions of our charter regarding the restrictions on ownership and transfer of our stock, holders of shares of common stock are entitled to receive dividends on such shares of common stock out of assets legally available therefore if, as and when authorized by our board of directors and declared by us, and the holders of our shares of common stock are entitled to share ratably in our assets legally available for distribution to our stockholders in the event of our liquidation, dissolution or winding up after payment of or adequate provision for all our known debts and liabilities.

Subject to the provisions of our charter regarding the restrictions on ownership and transfer of our stock and except as may otherwise be specified in our charter, each outstanding share of Class A common stock entitles the holder thereof to one vote, and each outstanding share of Class B common stock entitles the holder thereof to 50 votes, on all matters on which the stockholders of Class A common stock are entitled to vote, including the election of directors, and, except as provided with respect to any other class or series of stock, the holders of shares of Class A common stock and Class B common stock vote together as a single class and possess the exclusive voting power. Each share of Class B common stock has the same economic interest as a share of Class A common stock, and one share of Class B common stock and 49 operating partnership units together represent a similar economic value as 50 shares of Class A common stock. There is no cumulative voting in the election of our directors, which means that the stockholders entitled to cast a majority of the votes of the outstanding shares of common stock can elect all of the directors then standing for election, and the holders of the remaining shares will not be able to elect any directors. Directors are elected by a plurality of all the votes cast in the election of directors. Under a plurality voting standard, directors who receive the greatest number of votes cast in their favor are elected to the board of directors.

Holders of shares of common stock have no preference, conversion, exchange, sinking fund or redemption rights, have no preemptive rights to subscribe for any securities of our company and generally have no appraisal rights unless our board of directors determines that appraisal rights apply, with respect to all or any such classes or series of stock, to one or more transactions occurring after the date of such determination in connection with which holders of such shares would otherwise be entitled to exercise appraisal rights. Subject to the provisions of our charter regarding the restrictions on ownership and transfer of our stock and except as otherwise provided

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in our charter, shares of common stock have equal dividend, liquidation and other rights. One share of Class B common stock may be converted into one share of Class A common stock at any time, and one share of Class B common stock is subject to automatic conversion into one share of Class A common stock upon a direct or indirect transfer of such share of Class B common stock held by the holder of Class B common stock (or a permitted transferee thereof) to a person other than a permitted transferee. Shares of Class B common stock are also subject to automatic conversion upon certain direct or indirect transfers of operating partnership units held by the holder of such Class B common stock at a ratio of one share of Class B common stock for every 49 operating partnership units transferred to a person other than a permitted transferee. A “permitted transferee” with respect to a person is defined in our charter as a family member, affiliate or controlled entity of such person.

Under the Maryland General Corporation Law, or MGCL, a Maryland corporation generally cannot dissolve, amend its charter, merge or consolidate with another entity, sell all or substantially all of its assets or engage in a share exchange unless the action is approved by the affirmative vote of stockholders entitled to cast at least two-thirds of the votes entitled to be cast on the matter unless a lesser percentage (but not less than a majority of all of the votes entitled to be cast on the matter) is specified in the corporation’s charter. Our charter provides that these actions (other than certain amendments to the provisions of our charter related to the removal of directors, the restrictions on ownership and transfer of our stock and the vote required to amend these provisions) may be approved by a majority of all of the votes entitled to be cast on the matter.

Power to Reclassify Our Unissued Shares of Stock

Our charter authorizes our board of directors to classify and reclassify any unissued shares of common or preferred stock into other classes or series of stock. Prior to issuance of shares of each class or series, our board of directors is required by Maryland law and by our charter to set, subject to the provisions of our charter regarding restrictions on ownership and transfer of our stock, the preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms and conditions of redemption for each class or series. Therefore, our board of directors could authorize the issuance of shares of common or preferred stock with terms and conditions that may have the effect of delaying, deferring or preventing a change in control or other transaction that might involve a premium price for our shares of common stock or otherwise be in the best interest of our stockholders. No shares of preferred stock are presently outstanding, and we have no present plans to issue any shares of preferred stock.

Power to Increase or Decrease Authorized Shares of Common Stock and Issue Additional Shares of Common and Preferred Stock

We believe the power of our board of directors to amend our charter from time to time to increase or decrease the number of authorized shares of stock, to issue additional authorized but unissued shares of common or preferred stock and to classify or reclassify unissued shares of common or preferred stock and thereafter to issue such classified or reclassified shares of stock will provide us with increased flexibility in structuring possible future financings and acquisitions and in meeting other needs that might arise. The additional classes or series, as well as the additional shares of common stock, will be available for issuance without further action by our stockholders, unless such approval is required by applicable law or the rules of any stock exchange or automated quotation system on which our securities may be listed or traded. Although our board of directors does not intend to do so, it could authorize us to issue a class or series of stock that may, depending upon the terms of the particular class or series, delay, defer or prevent a change in control or other transaction that might involve a premium price for our shares of common stock or otherwise be in our best interest.

Restrictions on Ownership and Transfer

In order for us to qualify as a REIT under the Code, our shares of stock must be beneficially owned by 100 or more persons during at least 335 days of a taxable year of 12 months (other than

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the first year for which an election to be a REIT has been made) or during a proportionate part of a shorter taxable year. In addition, no more than 50% of the value of the outstanding shares of stock may be owned, directly or indirectly, by five or fewer individuals (as defined in the Code to include certain entities) during the last half of any taxable year (other than the first year for which an election to be a REIT has been made).

Our charter contains restrictions on the ownership and transfer of our shares of common stock and other outstanding shares of stock. The relevant sections of our charter provide that no person or entity may own, or be deemed to own, by virtue of the applicable constructive ownership provisions of the Code, more than 9.8% in value or number of shares, whichever is more restrictive, of the outstanding shares of our common stock (the common stock ownership limit), or 9.8% in value or number of shares, whichever is more restrictive, of the outstanding shares of all classes or series of our capital stock (the aggregate stock ownership limit). We refer to the common stock ownership limit and the aggregate stock ownership limit collectively as the “ownership limits.” A person or entity that, but for operation of the ownership limits or another restriction on ownership and transfer of our stock as described below, would beneficially own or be deemed to beneficially own, by virtue of the applicable constructive ownership provisions of the Code, shares of our stock and/or, if appropriate in the context, a person or entity that would have been the record owner of such shares of our stock is referred to as a “prohibited owner.”

The constructive ownership rules under the Code are complex and may cause shares of stock owned actually or constructively by a group of related individuals and/or entities to be owned constructively by one individual or entity. As a result, the acquisition of less than 9.8% in value or number of shares, whichever is more restrictive, of the outstanding shares of our common stock or 9.8% in value or number of shares, whichever is more restrictive, of the outstanding shares of all classes or series of our stock (or the acquisition of an interest in an entity that owns, actually or constructively, shares of our stock) by an individual or entity, could, nevertheless, cause that individual or entity, or another individual or entity, to own constructively in excess of the ownership limits.

Our board of directors may, in its sole discretion and subject to the receipt of such certain representations, covenants and undertakings deemed reasonably necessary by the board, prospectively or retroactively, exempt a person from the ownership limits and establish an excepted holder limit for such person. However, our board of directors may not exempt any person whose ownership of our outstanding stock would result in our being “closely held” within the meaning of Section 856(h) of the Code (without regard to whether the ownership interest is held during the last half of a taxable year) or otherwise would result in our failing to qualify as a REIT. In order to be considered by the board of directors for exemption, a person also must provide our board of directors with information and undertakings deemed satisfactory to our board of directors that such person does not own, actually or constructively, an interest in one of our tenants (or a tenant of any entity which we own or control) that would cause us to own beneficially or constructively more than a 9.9% interest in the tenant if the income derived by us from such tenant would reasonably be expected to equal or exceed the lesser of (i) one percent of our gross income (as determined for purposes of Section 856(c) of the Code) or (ii) an amount that would cause us to fail to satisfy any of the gross income requirements of Section 856(c) of the Code. The person seeking an exemption must provide representations and undertakings to the satisfaction of our board of directors that it will not violate these restrictions. The person also must agree that any violation or attempted violation of these restrictions will result in the automatic transfer to a trust of the shares of stock causing the violation. As a condition of its waiver, our board of directors may require an opinion of counsel or IRS ruling satisfactory to our board of directors with respect to our qualification as a REIT.

In connection with the waiver of the ownership limits, creating an excepted holder limit or at any other time, our board of directors may, in its sole and absolute discretion, from time to time increase or decrease the ownership limits subject to the restrictions in the paragraph above; provided, however, that the ownership limits may not be decreased or increased if, after giving effect to such decrease or increase, five or fewer persons could own or beneficially own in the aggregate, more than 49.9% in value of our shares then outstanding. Prior to the modification of the ownership

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limits, our board of directors may require such opinions of counsel, affidavits, undertakings or agreements as it may deem necessary or advisable in order to determine or ensure our qualification as a REIT. Reduced ownership limits will not apply to any person or entity whose percentage ownership in our shares of common stock or stock of all classes and series, as applicable, is in excess of such decreased ownership limits until such time as such person’s or entity’s percentage ownership of our common stock or stock of all classes and series, as applicable, equals or falls below the decreased ownership limits, but any further acquisition of shares of our common stock or stock of all classes and series, as applicable, in excess of such percentage ownership of our shares of common stock or total shares of stock will be in violation of the ownership limits.

Our charter further prohibits:

• any person from beneficially or constructively owning (taking into account applicable attribution rules under the Code) shares of our stock that would result in our being “closely held” under Section 856(h) of the Code or otherwise cause us to fail to qualify as a REIT;

• any person from beneficially or constructively owning shares of our stock to the extent that such ownership would result in us owning (directly or indirectly) more than a 9.9% interest in one of our tenants (or a tenant of any entity which we own or control) if the income derived by us (either directly or indirectly through one or more partnerships or limited liability companies) from such tenant would reasonably be expected to equal or exceed the lesser of (a) one percent of our gross income (as determined for purposes of Section 856(c) of the Code) or (b) an amount that would cause us to fail to satisfy any of the gross income requirements of Section 856(c) of the Code; and

• any person from transferring our shares of stock if such transfer would result in our shares of stock being beneficially owned by fewer than 100 persons (determined, as a general matter, without reference to any attribution rules).

Any person who acquires or attempts or intends to acquire beneficial or constructive ownership of shares of our stock that will or may violate the ownership limits or any of the foregoing restrictions on ownership and transfer will be required to give written notice immediately to us (or, in the case of a proposed or attempted acquisition, at least 15 days prior written notice to us) and provide us with such other information as we may request in order to determine the effect of such transfer on our qualification as a REIT. These restrictions on ownership and transfer will not apply if our board of directors determines that it is no longer in our best interests to qualify as a REIT or that compliance with such provisions is no longer required for REIT qualification.

If any transfer of shares of our stock would result in shares of our stock being beneficially owned by fewer than 100 persons, such transfer will be null and void and the intended transferee will acquire no rights in such shares. In addition, if any purported transfer of shares of our stock or any other event would otherwise result in any person violating the ownership limits or such other limit established by our board of directors or in our being “closely held” under Section 856(h) of the Code or otherwise failing to qualify as a REIT or in our owning (directly or indirectly) more than a 9.9% interest in one of our tenants (or a tenant of any entity which we own or control) if the income derived by us from such tenant would reasonably be expected to equal or exceed the lesser of (i) one percent of our gross income (as determined for purposes of Section 856(c) of the Code) or (b) an amount that would cause us to fail to satisfy any of the gross income requirements of Section 856(c) of the Code, then generally that number of shares (rounded up to the nearest whole share) that would cause us to violate such restrictions will be automatically transferred to, and held by, a trust for the exclusive benefit of one or more charitable organizations selected by us and the intended transferee will acquire no rights in such shares. The automatic transfer will be effective as of the close of business on the business day prior to the date of the violative transfer or other event that results in a transfer to the trust. Any dividend or other distribution paid to the prohibited owner, prior to our discovery that the shares had been automatically transferred to a trust as described above, must be repaid to the trustee upon demand for the benefit of the charitable beneficiary of the trust. If the transfer to the trust as described above is not automatically effective, for any reason, to prevent violation of the applicable ownership limits or our being “closely held”

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under Section 856(h) of the Code or otherwise failing to qualify as a REIT, then our charter provides that the transfer of the shares will be null and void.

Shares of stock transferred to the trustee are deemed offered for sale to us, or our designee, at a price per share equal to the lesser of (i) the price paid by the prohibited owner for the shares (or, in the event of a gift, devise or other such transaction, the last reported sales price reported on the New York Stock Exchange (or other applicable exchange) on the day of the event which resulted in the transfer of such shares of stock to the trust) and (ii) the market price on the date we, or our designee, accepts such offer. We have the right to accept such offer until the trustee has sold the shares of our stock held in the trust pursuant to the clauses discussed below. Upon a sale to us, the interest of the charitable beneficiary in the shares sold terminates, the trustee must distribute the net proceeds of the sale to the prohibited owner but the trustee may reduce the amount payable to the prohibited owner by the amount of dividends and other distributions which have been paid to the prohibited owner and are owed by the prohibited owner to the trustee. To the extent the prohibited owner would receive an amount for such shares that exceeds the amount that such prohibited owner would have been entitled to receive had the trustee sold the shares held in the trust to a third party, such excess shall be retained by the trustee for the benefit of the charitable beneficiary.

If we do not buy the shares, the trustee must, within 20 days of receiving notice from us of the transfer of shares to the trust, sell the shares to a person designated by the trustee who could own the shares without violating the ownership limitations set forth in the charter. Upon such sale, the trustee must distribute to the prohibited owner an amount equal to the lesser of (i) the price paid by the prohibited owner for the shares (or, in the event of a gift, devise or other such transaction, the last reported sales price reported on the New York Stock Exchange (or other applicable exchange) on the day of the event which resulted in the transfer of such shares of stock to the trust) and (ii) the sales proceeds (net of commissions and other expenses of sale) received by the trustee for the shares. The trustee will reduce the amount payable to the prohibited owner by the amount of dividends and other distributions which have been paid to the prohibited owner and are owed by the prohibited owner to the trustee. Any net sales proceeds in excess of the amount payable to the prohibited owner will be immediately paid to the beneficiary of the trust and any dividend or other distribution paid to trustee shall be held in trust for the charitable beneficiary. In addition, if, prior to discovery by us that shares of stock have been transferred to a trust, such shares of stock are sold by a prohibited owner, then such shares will be deemed to have been sold on behalf of the trust and to the extent that the prohibited owner received an amount for such shares that exceeds the amount that such prohibited owner was entitled to receive, such excess amount will be paid to the trustee upon demand. The prohibited owner has no rights in the shares held by the trustee.

The trustee will be designated by us and will be unaffiliated with us and with any prohibited owner. Prior to the sale of any shares by the trust, the trustee will receive, in trust for the beneficiary of the trust, all dividends and other distributions paid by us with respect to the shares held in trust and may also exercise all voting rights with respect to the shares held in trust. These rights will be exercised for the exclusive benefit of the beneficiary of the trust. Any dividend or other distribution paid prior to our discovery that shares of stock have been transferred to the trust will be paid by the recipient to the trustee upon demand. Any dividend or other distribution authorized but unpaid will be paid when due to the trustee.

Subject to Maryland law, effective as of the date that the shares have been transferred to the trust, the trustee will have the authority, at the trustee’s sole discretion:

• to rescind as void any vote cast by a prohibited owner prior to our discovery that the shares have been transferred to the trust; and

• to recast the vote in accordance with the desires of the trustee acting for the benefit of the beneficiary of the trust.

However, if we have already taken irreversible corporate action, then the trustee may not rescind and recast the vote.

In addition, if our board of directors or other permitted designees determine in good faith that a proposed transfer would violate the restrictions on ownership and transfer of our shares of stock

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set forth in our charter, our board of directors or other permitted designees will take such action as it deems or they deem advisable to refuse to give effect to or to prevent such transfer, including, but not limited to, causing us to redeem the shares of stock, refusing to give effect to the transfer on our books or instituting proceedings to enjoin the transfer.

Every owner of 5% or more (or such lower percentage as required by the Code or the regulations promulgated thereunder) of our stock, within 30 days after the end of each taxable year, is required to give us written notice, stating the stockholder’s name and address, the number of shares of each class and series of our stock that the stockholder beneficially owns and a description of the manner in which the shares are held. Each such owner must provide us with such additional information as we may request in order to determine the effect of the stockholder’s beneficial ownership on our qualification as a REIT and to ensure compliance with the ownership limits. In addition, each stockholder must provide us with such information as we may request in good faith in order to determine our qualification as a REIT and to comply with the requirements of any taxing authority or governmental authority or to determine such compliance.

Any certificates, or written statements of information delivered in lieu of certificates, representing shares of our stock will bear a legend referring to the restrictions described above.

These restrictions on ownership and transfer will not apply if our board of directors determines that it is no longer in our best interests to qualify as a REIT or that compliance with such provisions is no longer required for REIT qualification.

These ownership limits could delay, defer or prevent a transaction or a change in control that might involve a premium price for our common stock or otherwise be in the best interest of our stockholders.

Transfer Agent and Registrar

The transfer agent and registrar for our shares of common stock is American Stock Transfer & Trust Company, LLC.

Certain Provisions of Maryland Law Applicable to Us and Our Charter and Bylaws

Our Board of Directors

Our charter and bylaws provide that the number of directors we have may be established by our board of directors but that the number may not be less than the minimum number required by the MGCL nor more than 15. Our charter and bylaws currently provide that, except as may be provided by the board of directors in setting the terms of any class or series of preferred stock, any vacancy may be filled only by a majority of the remaining directors, even if the remaining directors do not constitute a quorum, and any individual elected to fill such vacancy will serve for the remainder of the full term of the directorship in which the vacancy occurred and until a successor is duly elected and qualifies.

Each of our directors is elected by our stockholders to serve until the next annual meeting and until his or her successor is duly elected and qualifies. Holders of shares of common stock will have no right to cumulative voting in the election of directors. Consequently, at each annual meeting of stockholders, the holders of a majority of the shares of common stock entitled to vote will be able to elect all of our directors at any annual meeting. Directors are elected by a plurality of all votes cast in the election of directors.

Removal of Directors

Our charter provides that subject to the rights of holders of one or more classes or series of preferred stock to elect or remove one or more directors, any director or the entire board of directors may be removed only for cause and only by the affirmative vote of stockholders entitled to cast at least two-thirds of the votes entitled to be cast generally in the election of directors. Cause means, with respect to any particular director, a conviction of a felony or a final judgment of a court of competent jurisdiction holding that such director caused demonstrable, material harm to us

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through bad faith or active and deliberate dishonesty. This provision, when coupled with the exclusive power of our board of directors to fill vacancies on our board of directors, precludes stockholders from (1) removing incumbent directors except upon a substantial affirmative vote and for cause and (2) filling the vacancies created by such removal with their own nominees.

Policy on Majority Voting

Our board of directors has adopted a policy regarding the election of directors in uncontested elections. Pursuant to such policy, in an uncontested election of directors, any nominee who receives a greater number of votes affirmatively withheld from his or her election than votes for his or her election will, within two weeks following certification of the stockholder vote by our company, submit a written resignation offer to our board of directors for consideration by our Nominating and Corporate Governance Committee. Our Nominating and Corporate Governance Committee will consider the resignation offer and, within 60 days following certification by our company of the stockholder vote with respect to such election, make a recommendation to our board of directors concerning the acceptance or rejection of the resignation offer. Our board of directors will take formal action on the recommendation no later than 90 days following certification of the stockholder vote by our company. We will publicly disclose, in a Form 8-K filed with the SEC, the decision of our board of directors. Our board of directors will also provide an explanation of the process by which the decision was made and, if applicable, its reason or reasons for rejecting the tendered resignation.

Business Combinations

Under the MGCL, certain “business combinations” (including a merger, consolidation, share exchange or, in certain circumstances, an asset transfer or issuance or reclassification of equity securities) between a Maryland corporation and an interested stockholder (defined generally as any person who beneficially owns, directly or indirectly, 10% or more of the voting power of the corporation’s outstanding voting stock or an affiliate or associate of the corporation who, at any time within the two-year period prior to the date in question, was the beneficial owner of 10% or more of the voting power of the then outstanding stock of the corporation) or an affiliate of such an interested stockholder are prohibited for five years after the most recent date on which the interested stockholder becomes an interested stockholder. Thereafter, any such business combination must be recommended by the board of directors of such corporation and approved by the affirmative vote of at least (1) 80% of the votes entitled to be cast by holders of outstanding voting stock of the corporation and (2) two-thirds of the votes entitled to be cast by holders of voting stock of the corporation other than shares held by the interested stockholder with whom (or with whose affiliate) the business combination is to be effected or held by an affiliate or associate of the interested stockholder, unless, among other conditions, the corporation’s common stockholders receive a minimum price (as defined in the MGCL) for their shares and the consideration is received in cash or in the same form as previously paid by the interested stockholder for its shares. A person is not an interested stockholder under the statute if the board of directors approved in advance the transaction by which the person otherwise would have become an interested stockholder. The board of directors may provide that its approval is subject to compliance with any terms and conditions determined by it.

These provisions of the MGCL do not apply, however, to business combinations that are approved or exempted by a board of directors prior to the time that the interested stockholder becomes an interested stockholder. Pursuant to the statute, our board of directors has by resolution exempted business combinations between us and any other person, provided that such business combination is first approved by our board of directors (including a majority of our directors who are not affiliates or associates of such person) and, consequently, the five-year prohibition and the supermajority vote requirements will not apply to business combinations between us and any person as described above. As a result, any person described above may be able to enter into business combinations with us that may not be in the best interest of our stockholders without compliance by our company with the supermajority vote requirements and other provisions of the statute.

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We cannot assure you our board of directors will not opt to be subject to such business combination provisions in the future. However, an alteration or repeal of the resolution described above will not have any effect on any business combinations that have been consummated or upon any agreements existing at the time of such modification or repeal. If our board of directors opted back into the business combination statute or failed to first approve a business combination, the business combination statute may discourage others from trying to acquire control of us and increase the difficulty of consummating any offer.

Control Share Acquisitions

The MGCL provides that “control shares” of a Maryland corporation acquired in a “control share acquisition” have no voting rights except to the extent approved by the affirmative vote of two-thirds of the votes entitled to be cast on the matter, excluding shares of stock in a corporation in respect of which any of the following persons is entitled to exercise or direct the exercise of the voting power of such shares in the election of directors: (i) a person who makes or proposes to make a control share acquisition, (ii) an officer of the corporation or (iii) an employee of the corporation who is also a director of the corporation. “Control shares” are voting shares of stock which, if aggregated with all other such shares of stock previously acquired by the acquirer, or in respect of which the acquirer is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquirer to exercise voting power in electing directors within one of the following ranges of voting power: (A) one-tenth or more but less than one-third; (B) one-third or more but less than a majority; or (C) a majority or more of all voting power. Control shares do not include shares that the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A “control share acquisition” means the acquisition, directly or indirectly, of ownership of, or the power to direct the exercise of voting power with respect to, issued and outstanding control shares, subject to certain exceptions.

A person who has made or proposes to make a control share acquisition, upon satisfaction of certain conditions (including an undertaking to pay expenses and making an “acquiring person statement” as described in the MGCL), may compel the corporation to call a special meeting of stockholders to be held within 50 days of demand to consider the voting rights of the shares. If no request for a meeting is made, the corporation may itself present the question at any stockholders meeting.

If voting rights are not approved at the meeting or if the acquiring person does not deliver an “acquiring person statement” as required by the statute, then, subject to certain conditions and limitations, the corporation may redeem any or all of the control shares (except those for which voting rights have previously been approved) for fair value determined, without regard to the absence of voting rights for the control shares, as of the date of the last control share acquisition by the acquirer or of any meeting of stockholders at which the voting rights of such shares are considered and not approved. If voting rights for control shares are approved at a stockholders meeting and the acquirer becomes entitled to vote a majority of the shares entitled to vote, all other stockholders may exercise appraisal rights. The fair value of the shares as determined for purposes of such appraisal rights may not be less than the highest price per share paid by the acquirer in the control share acquisition.

The control share acquisition statute does not apply to (1) shares acquired in a merger, consolidation or share exchange if the corporation is a party to the transaction or (2) acquisitions approved or exempted by the charter or bylaws of the corporation.

Our bylaws contain a provision exempting from the control share acquisition statute any acquisitions by any person of shares of our stock. There is no assurance that such provision will not be amended or eliminated at any time in the future.

Subtitle 8

Subtitle 8 of Title 3 of the MGCL permits a Maryland corporation with a class of equity securities registered under the Exchange Act and at least three independent directors to elect to be

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subject, by provision in its charter or bylaws or a resolution of its board of directors and notwithstanding any contrary provision in the charter or bylaws, to any or all of five provisions:

• a classified board;

• a two-thirds vote requirement for removing a director;

• a requirement that the number of directors be fixed only by vote of the directors;

• a requirement that a vacancy on the board be filled only by the remaining directors and for the remainder of the full term of class of directors in which the vacancy occurred; and

• a majority requirement for the calling of a special meeting of stockholders.

Our charter provides that, at such time as we are able to make a Subtitle 8 election, vacancies on our board may be filled only by the remaining directors and for the remainder of the full term of the directorship in which the vacancy occurred. Through provisions in our charter and bylaws unrelated to Subtitle 8, we already (1) require the affirmative vote of stockholders entitled to cast not less than two-thirds of all of the votes entitled to be cast on the matter for the removal of any director from the board, which removal also requires cause, (2) vest in the board the exclusive power to fix the number of directorships and (3) require, unless called by the chairman of our board of directors, our chief executive officer, our president or our board of directors, the written request of stockholders entitled to cast not less than a majority of all votes entitled to be cast on any matter at such a meeting to call a special meeting.

Meetings of Stockholders

Pursuant to our bylaws, a meeting of our stockholders for the election of directors and the transaction of any business will be held annually at a date, time and place set by our board of directors. The chairman of our board of directors, our chief executive officer, our president or our board of directors may call a special meeting of our stockholders. Subject to the provisions of our bylaws, a special meeting of our stockholders will also be called by our secretary upon the written request of the stockholders entitled to cast not less than a majority of all the votes entitled to be cast on any matter that may be properly considered at a meeting of stockholders and containing the information required in our bylaws.

Amendments to Our Charter and Bylaws

Except for amendments to the provisions of our charter relating to the removal of directors, the restrictions on ownership and transfer of our shares of stock and the vote required to amend these provisions (each of which must be advised by our board of directors and approved by the affirmative vote of the stockholders entitled to cast not less than two-thirds of all the votes entitled to be cast on the matter), our charter generally may be amended only with the approval of our board of directors and the affirmative vote of the stockholders entitled to cast not less than a majority of all of the votes entitled to be cast on the matter. However, our board of directors, without stockholder approval, has the power under our charter to amend our charter from time to time to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that we are authorized to issue, to authorize us to issue authorized but unissued shares of our common stock or preferred stock and to classify or reclassify any unissued shares of our common stock or preferred stock into one or more classes or series of stock and set the terms of such newly classified or reclassified shares.

Our board of directors has the exclusive power to adopt, alter or repeal any provision of our bylaws and to make new bylaws.

Dissolution of Our Company

The dissolution of our company must be declared advisable by a majority of our entire board of directors and approved by the affirmative vote of the stockholders entitled to cast not less than a majority of all of the votes entitled to be cast on the matter.

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Advance Notice of Director Nominations and New Business

Our bylaws provide that, with respect to an annual meeting of stockholders, nominations of individuals for election to our board of directors and the proposal of other business to be considered by stockholders may be made only (1) pursuant to our notice of the meeting, (2) by or at the direction of our board of directors or (3) by a stockholder who is a stockholder of record both at the time of giving the notice required by our bylaws and at the time of the meeting, who is entitled to vote at the meeting in the election of each individual so nominated or on such other business and who has complied with the advance notice provisions set forth in our bylaws.

With respect to special meetings of stockholders, only the business specified in our notice of meeting may be brought before the meeting. Nominations of individuals for election to our board of directors may be made only (1) by or at the direction of our board of directors or (2) provided, that the meeting has been called in accordance with our bylaws for the purpose of electing directors, by a stockholder who is a stockholder of record both at the time of giving the notice required by our bylaws and at the time of the meeting, who is entitled to vote at the meeting in the election of each individual so nominated and who has complied with the advance notice provisions set forth in our bylaws.

The purpose of requiring stockholders to give us advance notice of nominations and other business is to afford our board of directors a meaningful opportunity to consider the qualifications of the proposed nominees and the advisability of any other proposed business and, to the extent deemed necessary or desirable by our board of directors, to inform stockholders and make recommendations about such qualifications or business, as well as to provide a more orderly procedure for conducting meetings of stockholders. Although our bylaws do not give our board of directors any power to disapprove stockholder nominations for the election of directors or proposals recommending certain action, they may have the effect of precluding a contest for the election of directors or the consideration of stockholder proposals if proper procedures are not followed and of discouraging or deterring a third party from conducting a solicitation of proxies to elect its own slate of directors or to approve its own proposal without regard to whether consideration of such nominees or proposals might be harmful or beneficial to us and our stockholders.

Anti-Takeover Effect of Certain Provisions of Maryland Law and of Our Charter and Bylaws

Our charter and bylaws and Maryland law contain provisions that may delay, defer or prevent a change in control or other transaction that might involve a premium price for our shares of common stock or otherwise be in the best interests of our stockholders, including restrictions on ownership and transfer of our stock and advance notice requirements for director nominations and stockholder proposals. Likewise, if the provision in the bylaws opting out of the control share acquisition provisions of the MGCL were rescinded or if we were to opt into the business combination provisions of the MGCL or the classified board or other provisions of Subtitle 8, these provisions of the MGCL could have similar anti-takeover effects.

Interested Director and Officer Transactions

Pursuant to the MGCL, a contract or other transaction between us and a director or between us and any other corporation or other entity in which any of our directors is a director or has a material financial interest is not void or voidable solely on the grounds of such common directorship or interest, the presence of such director at the meeting at which the contract or transaction is authorized, approved or ratified or the counting of the director’s vote in favor thereof, if:

• the fact of the common directorship or interest is disclosed or known to our board of directors or a committee of our board, and our board or committee authorizes, approves or ratifies the contract or transaction by the affirmative vote of a majority of disinterested directors, even if the disinterested directors constitute less than a quorum;

• the fact of the common directorship or interest is disclosed or known to our stockholders entitled to vote thereon, and the contract or transaction is authorized, approved or ratified by

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	a majority of the votes cast by the stockholders entitled to vote other than the votes of shares owned of record or beneficially by the interested director or corporation or other entity; or
•	the contract or transaction is fair and reasonable to us.

Upon the closing of this offering, we intend to adopt a policy that requires all contracts and transactions between us or any of our subsidiaries, on the one hand, and any of our directors or named executive officers or any entity in which such director or named executive officer is a director or has a material financial interest, on the other hand, to be approved by the affirmative vote of a majority of the disinterested directors, even if less than a quorum. Where appropriate in the judgment of the disinterested directors, our board of directors may obtain a fairness opinion or engage independent counsel to represent the interests of non-affiliated security holders, although our board of directors will have no obligation to do so.

Indemnification and Limitation of Directors’ and Officers’ Liability

Maryland law permits a Maryland corporation to include in its charter a provision limiting the liability of its directors and officers to the corporation and its stockholders for money damages except for liability resulting from actual receipt of an improper benefit or profit in money, property or services or active and deliberate dishonesty established by a final judgment as being material to the cause of action. Our charter contains such a provision and eliminates the liability of our directors and officers to the maximum extent permitted by Maryland law.

The MGCL requires a Maryland corporation (unless its charter provides otherwise, which our charter does not) to indemnify a director or officer who has been successful, on the merits or otherwise, in the defense of any proceeding to which he or she is made or threatened to be made a party by reason of his or her service in that capacity. The MGCL permits a Maryland corporation to indemnify its present and former directors and officers, among others, against judgments, penalties, fines, settlements and reasonable expenses actually incurred by them in connection with any proceeding to which they may be made or threatened to be made a party by reason of their service in those or other capacities unless it is established that:

• the act or omission of the director or officer was material to the matter giving rise to the proceeding and (1) was committed in bad faith or (2) was the result of active and deliberate dishonesty;

• the director or officer actually received an improper personal benefit in money, property or services; or

• in the case of any criminal proceeding, the director or officer had reasonable cause to believe that the act or omission was unlawful.

Under the MGCL, a Maryland corporation may not indemnify a director or officer in a suit by or in the right of the corporation or in any proceeding charging improper personal benefit in which the director or officer was adjudged liable on the basis that personal benefit was improperly received. A court may order indemnification if it determines that the director or officer is fairly and reasonably entitled to indemnification, even though the director or officer did not meet the prescribed standard of conduct or was adjudged liable on the basis that personal benefit was improperly received. However, indemnification for an adverse judgment in a suit by the corporation or in its right, or for a judgment of liability on the basis that personal benefit was improperly received, is limited to expenses.

In addition, the MGCL permits a Maryland corporation to advance reasonable expenses to a director or officer upon the corporation’s receipt of:

• a written affirmation by the director or officer of his or her good faith belief that he or she has met the standard of conduct necessary for indemnification by the corporation; and

• a written undertaking by the director or officer or on the director’s or officer’s behalf to repay the amount paid or reimbursed by the corporation if it is ultimately determined that the director or officer did not meet the standard of conduct.

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Our charter and bylaws obligate us, to the maximum extent permitted by Maryland law in effect from time to time, to indemnify and, without requiring a preliminary determination of the ultimate entitlement to indemnification, pay or reimburse reasonable expenses in advance of final disposition of a proceeding to:

• any present or former director or officer who is made, or threatened to be made, a party to the proceeding by reason of his or her service in that capacity; or

• any individual who, while a director or officer of our company and at our request, serves or has served another corporation, real estate investment trust, partnership, limited liability company, joint venture, trust, employee benefit plan or any other enterprise as a director, officer, partner, member, manager or trustee of such corporation, real estate investment trust, partnership, limited liability company, joint venture, trust, employee benefit plan or other enterprise and who is made, or threatened to be made, a party to the proceeding by reason of his or her service in that capacity.

Our charter and bylaws also permit us, with the approval of our board of directors, to indemnify and advance expenses to members, managers, shareholders, directors, limited partners, general partners, officers or controlling persons of our predecessor in their capacities as such.

Upon completion of this offering, we intend to enter into indemnification agreements with each of our directors, executive officers, chairman emeritus and certain other parties, providing for the indemnification by us for certain liabilities and expenses incurred as a result of actions brought, or threatened to be brought, against (i) our directors, executive officers and chairman emeritus and (ii) our executive officers, chairman emeritus and certain other parties who are former members, managers, shareholders, directors, limited partners, general partners, officers or controlling persons of our predecessor in their capacities as such. Insofar as the foregoing provisions permit indemnification of directors, officers or persons controlling us for liability arising under the Securities Act, we have been informed that, in the opinion of the SEC, this indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

REIT Qualification

Our charter provides that our board of directors may revoke or otherwise terminate our REIT election, without approval of our stockholders, if it determines that it is no longer in our best interests to continue to qualify as a REIT.

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CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

Overview

The following discussion describes certain U.S. federal income tax considerations to direct limited partners of the Company that are U.S. Persons (as defined below) of:

• the Exchange Offer; and

• the subsequent ownership and disposition of Preferred Units.

The information in this discussion is based on the current provisions of the Internal Revenue Code of 1986, as amended (the “Code”), current final, temporary and proposed Treasury Regulations, the legislative history of the Code, and current administrative interpretations and practices of the Internal Revenue Service (“IRS”), including its practices and policies as endorsed in private letter rulings, which are not binding on the IRS except with respect to the taxpayer that receives such a ruling, and court decisions. Future legislation, Treasury Regulations, administrative interpretations and court decisions could significantly change current law or adversely affect current interpretations of existing law, and any such changes could apply retroactively. We have not requested and do not plan to request any rulings from the IRS concerning the U.S. tax treatment of the Exchange Offer, the U.S. tax considerations relating to the ownership and disposition of Preferred Units, the effect of the Exchange Offer on the holders of the OP Units, or the Company’s status as a partnership for U.S. federal income tax purposes. Thus, it is possible that the IRS would challenge the statements in this discussion, which do not bind the IRS or the courts, and that a court would agree with the IRS.

The following contains a limited summary of certain U.S. federal income tax rules, and no attempt is made to summarize all of the rules that may be relevant to a particular limited partner of the Company. This discussion does not address (i) tax considerations that may be relevant to an owner of a direct limited partner of the Company, (ii) U.S. federal tax considerations other than the U.S. federal income tax considerations specifically discussed herein or (iii) U.S. state or local, or non-U.S. taxes. In addition, except as otherwise specifically discussed herein, this discussion does not address U.S. federal income tax considerations applicable to persons subject to special treatment under U.S. federal income tax law, including, for example:

• financial institutions;

• pass-through entities (such as entities treated as partnerships for U.S. federal income tax purposes);

• insurance companies;

• broker-dealers;

• dealers in securities or currencies;

• traders in securities that elect to use a mark to market method of accounting;

• persons that hold OP Units (or interests in any direct or indirect limited partner in the Company) or Preferred Units as part of a straddle, hedge, constructive sale, conversion, or other integrated transaction for tax purposes;

• regulated investment companies;

• real estate investment trusts;

• certain U.S. expatriates;

• persons who do not acquire Preferred Units in connection with the Exchange Offer, such as, for instance, persons who acquire Preferred Units after such transactions;

• persons who hold their OP Units or Preferred Units as other than a capital asset for U.S. federal income tax purposes; and

• organizations that are treated as tax-exempt organizations for U.S. federal income tax purposes, including persons that are subject to U.S. federal income tax on “unrelated business taxable income.”

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For purposes of this discussion, a “U.S. Person” means a person that is not excluded from the scope of this discussion, as described above, and is:

• an individual who is a citizen or resident of the United States for U.S. federal income tax purposes;

• a corporation (or other entity taxable as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States or any political subdivision thereof;

• an estate the income of which is subject to U.S. federal income taxation regardless of its source; or

• a trust that (A) is subject to the supervision of a court within the United States and the control of one or more U.S. persons or (B) has a valid election in place under the Treasury Regulations to be treated as a U.S. person.

If a partnership (or an entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds OP Units or Preferred Units, the tax treatment of a partner in the partnership generally will depend on the status of the partner and the activities of the partnership.

THE U.S. FEDERAL INCOME TAX RULES APPLICABLE TO THE TRANSACTIONS DESCRIBED IN THIS EXCHANGE OFFER AND THE OWNERSHIP OF OP UNITS AND PREFERRED UNITS ARE HIGHLY TECHNICAL AND COMPLEX. HOLDERS OF OP UNITS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS REGARDING THE SPECIFIC TAX CONSEQUENCES TO THEM OF THE TRANSACTIONS DESCRIBED IN THIS EXCHANGE OFFER AND THE OWNERSHIP OF OP UNITS AND PREFERRED UNITS, INCLUDING THE APPLICABILITY AND EFFECT OF U.S. FEDERAL, STATE, LOCAL AND NON-U.S. INCOME AND OTHER TAX LAWS AND POTENTIAL CHANGES IN APPLICABLE TAX LAWS, IN LIGHT OF THEIR PARTICULAR CIRCUMSTANCES. THIS DISCUSSION IS NOT, AND IS NOT INTENDED TO BE, TAX ADVICE.

U.S. Federal Income Tax Status of the Company

The following discussion assumes that the Company is treated as a partnership for U.S. federal income tax purposes, and not as a publicly traded partnership taxable as a corporation because we satisfy the “qualifying income” exception to corporate taxation of publicly traded partnerships. A failure of the Company to be treated as a partnership for U.S. federal income tax purposes would materially alter the U.S. federal income tax consequences described below.

Exchange Offer

Tax Consequences of the Exchange Offer to Limited Partners That Elect to Exchange OP Units for Preferred Units

Except as provided below, the exchange of the OP Units for Preferred Units pursuant to the Exchange Offer will be a tax-free transaction for U.S. federal income tax purposes.

The Exchange Offer could result in income or gain to a participating limited partner (and potentially a non-participating limited partner) to the extent one of the following situations applies:

• A limited partner in the Company receives a deemed cash distribution from the Company for U.S. federal income tax purposes as a result of a decrease in the limited partner’s share of liabilities of the Company and the amount of the deemed cash distribution exceeds such limited partner’s adjusted basis in its Company interests.

• A limited partner in the Company is required to recognize income under the at-risk recapture rules of Code Section 465(e).

• The receipt of distributions on Preferred Units by a limited partner following the Exchange Offer causes the consolidation transactions consummated in connection with ESRT’s initial public offering (the “Consolidation Transaction”) to be treated in whole or in part as a “disguised sale” under Code Section 707.

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The potential gain recognition situations are discussed more fully below. Subject to that more detailed discussion, we do not expect that these potential gain recognition situations would apply to the Exchange Offer.

Reductions in Shares of Liabilities and Deemed Cash Distributions

For U.S. federal income tax purposes, the liabilities of a partnership are “allocated” to the partners under complex rules which are briefly summarized below. Due to the complexity of the rules under which partnership liabilities are allocated and the potentially significant impact of the allocation to you for U.S. federal income tax purposes, you are strongly encouraged to consult your own tax advisor regarding the application of these rules to your particular circumstances.

A partner’s share of the liabilities of a partnership is determined under Code Section 752 and the Treasury Regulations thereunder. In general, each liability of a partnership is allocated to those partners who bear the economic risk of loss for the liability if it is not paid by the partnership, whether they bear the risk of loss as general partners of the partnership, by contract, by reason of being the lender to the partnership with respect to such liability or otherwise. Such liabilities are referred to as “recourse liabilities.” In general, liabilities for which no partner bears the economic risk of loss, so- called “nonrecourse liabilities,” are allocated among the partners in three tiers: first, among the partners in accordance with their share of partnership minimum gain; second, among the partners in accordance with their share of taxable gain that would be allocated under Code Section 704(c) (or under the principles of Code Section 704(c)) if the assets of the partnership subject to the nonrecourse liabilities were sold for an amount equal to the nonrecourse liabilities; and third, generally speaking, in proportion to the partners’ interests in partnership profits. Nonrecourse liabilities otherwise allocable under the third tier may be allocated under an additional method first to a partner up to the amount of built-in gain allocable to the partner under Code Section 704(c) with respect to property contributed by the partner (or under similar principles in the case of revalued property), where such property is subject to the nonrecourse liability and to the extent that such built-in gain exceeds the gain described in tier two. Nonrecourse liabilities allocable under tier three in excess of amounts allocated under this additional method are referred to below as “residual nonrecourse liabilities.”

An increase in a partner’s share of partnership liabilities under the above rules is treated as a contribution of money to the partnership by the partner; a decrease in such share is treated as distribution of money from the partnership to the partner. Under such rules, a limited partner of the Company holding OP Units (whether or not the limited partner participates in the Exchange Offer) would be deemed to receive a cash distribution from the Company to the extent that the limited partner’s allocable share of liabilities immediately prior to the Exchange Offer exceeds its allocable share of Company liabilities immediately after the Exchange Offer. Any such deemed cash distribution would result in taxable gain to the limited partner to the extent that the deemed cash distribution exceeded the limited partner’s combined adjusted tax basis in the Company interests held by the limited partner (which generally should not change as a result of the Exchange Offer).

The issuance of the Preferred Units by the Company is not expected to change the allocation of Company recourse liabilities to any limited partner or the allocation of Company non-recourse liabilities to any limited partner under the first two tiers of the nonrecourse sharing rules or under the additional method of tier three. As discussed below under “Tax Consequences of Owning Preferred Units—Allocations and Guaranteed Payment Treatment,” the preferred distributions are intended to be treated as “guaranteed payments” under Code Section 707(c) and will not be matched by allocations of income of the Company. As a result, we do not expect to allocate any residual nonrecourse liabilities in respect of Preferred Units and participating limited partners who exchange all of their OP Units for Preferred Units should expect to have no allocations of Company residual nonrecourse liabilities after the Exchange Offer. Therefore, generally we expect that participating in the Exchange Offer will decrease a limited partner’s overall Company debt allocation, while non-participating limited partners should expect an increase in their share of Company liabilities.

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Notwithstanding the above, we do not expect any limited partners to receive an immediate taxable deemed distribution in excess of tax basis if they are no longer allocated a share of residual nonrecourse liabilities as a result of the Exchange Transaction. This expectation is based on our determinations about the treatment for tax purposes of our debt obligations (i.e., as recourse or nonrecourse) and the applicable debt allocation rules described above. It is possible that the IRS could challenge our positions and seek to recharacterize our debt or shift our allocations in a manner that would cause gain recognition for the exchanging holders of OP Units and possibly also holders of OP Units who do not participate in the exchange.

On May 20, 2014, the Company concluded an amendment to its credit facility which caused all debt thereunder ($325,000,000 balance currently outstanding) to be treated as non-recourse, thereby significantly expanding the amount available for allocation to protect limited partners from recognition of built-in taxable gain.

Section 465(e) Recapture

Under Code Section 465, a taxpayer’s ability to use losses to offset taxable income is limited by rules that are referred to as the “at-risk” rules. In addition, the at-risk rules may require a taxpayer to “recapture” losses that were previously used by the taxpayer with respect to an “activity” if the taxpayer’s “at-risk amount” for the activity falls below zero at the close of the taxable year. Losses are recaptured by including the amount of the losses previously used by the taxpayer in the taxpayer’s taxable income for the year of the recapture.

The identification and scope of an activity and the calculation of the at-risk amount under the at-risk rules are complex and can involve uncertainties. Generally, a taxpayer’s at-risk amount for an activity is the amount of the taxpayer’s investment in the activity, which is increased by the taxpayer’s income from the activity and the taxpayer’s share of any partnership liabilities for which the taxpayer is personally liable for repayment and any “qualified nonrecourse financing,” as defined in Code Section 465(b)(6), with respect to the activity, and is reduced by the taxpayer’s losses and distributions from the activity. The definition of qualified nonrecourse financing is different from, and sometimes more restrictive than, the definition of “nonrecourse liabilities” for purposes of determining a partner’s adjusted tax basis in its partnership interest, described above. It is possible that the Exchange Offer could reduce a limited partner’s at-risk amount in an activity (i.e., by reducing the limited partner’s share of qualified nonrecourse financings that are allocated as residual nonrecourse liabilities under tier three of the debt allocation rules), but we do not expect any such reduction to cause a limited partner to recognize taxable income under the Code Section 465(e) recapture provisions. This is because a reduction in a limited partner’s share of qualified nonrecourse financings that would otherwise cause the partner’s at-risk amount to become negative also would likely trigger a deemed distribution in excess of basis that should increase the limited partner’s at-risk amount.

Disguised Sale

Code Section 707(a)(2)(B) and the Treasury Regulations thereunder, which are referred to as the “disguised sale” rules, generally treat a partner’s transfer of property to a partnership and a related transfer within two years of money or other consideration (including the assumption of or taking subject to a liability) by the partnership to the partner as a sale, in whole or in part, of such property by the partner to the partnership, unless the facts and circumstances clearly establish that the transfers do not constitute a sale or an exception to the disguised sale treatment applies. The disguised sale rules will not apply to exchanges of OP Units for Preferred Units, but the preferred distributions payable with respect to the Preferred Units potentially could cause a portion of the limited partner’s Consolidation Transaction to be treated as a disguised sale

We believe that the preferred distributions should not give rise to disguised sale treatment. However, unless a safe harbor discussed below applies, additional tax disclosures would be required with respect to any preferred distributions payable during the 2-year period following the Consolidation Transaction.

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Generally, a transfer of property by a partner to a partnership and a transfer of money or other consideration (other than an interest in the partnership) from the partnership to the partner will be treated as a disguised sale if, when the transfers are not made simultaneously, the subsequent transfer is not dependent on the entrepreneurial risks of partnership operations. The disguised sale rules also provide, however, that if more than two years have passed between the contribution of property and the transfer of money or other consideration, the transactions will be presumed not to be a sale unless the facts and circumstances clearly establish that the transfers constitute a sale.

Notwithstanding the presumption that transfers made within two years of each other constitute a sale, guaranteed payments with respect to a partner’s capital in the partnership are not treated as part of a sale. Unless the facts and circumstances clearly establish otherwise, a payment is presumed to be a guaranteed payment for capital and not a part of a sale if (i) it is characterized by the parties as a guaranteed payment for capital, (ii) it is determined without regard to the income of the partnership and (iii) it is reasonable. In order for a transfer of money to a partner to be presumed to be a guaranteed payment, it must be made to the partner pursuant to a written provision of a partnership agreement that provides for payment for the use of capital in a reasonable amount, and only to the extent that the payment is made for the use of capital after the date on which that provision is added to the partnership agreement. For this purpose, a guaranteed payment will be deemed reasonable in amount if the sum of any guaranteed payment or any preferred return for capital that is payable for the taxable year does not exceed the amount determined by multiplying the partner’s unreturned capital in the partnership by the safe harbor interest rate for that year. The safe harbor rate is an amount equal to 150% of the highest applicable federal rate, at the appropriate compounding period(s), in effect at any time from the time that the right to the preferred return is first established pursuant to the partnership agreement through the end of the applicable taxable year.

A limited partner’s unreturned capital in the partnership is, at the limited partner’s election, either the limited partner’s unreturned capital at the beginning of the year or the limited partner’s weighted average capital balance for the year (with either amount appropriately adjusted, taking into account the relevant compounding periods, to reflect any unpaid preferred return or guaranteed payment for capital that is payable to the partner). A limited partner’s unreturned capital equals the excess of the aggregate amount of money and the fair market value of other consideration (net of liabilities) contributed by the partner to the partnership over the aggregate amount of money and the fair market value of other consideration (net of liabilities) distributed by the partnership to the partner other than transfers of money that are presumed to be guaranteed payments for capital, transfers of money that are reasonable preferred returns, and operating cash flow distributions.

We believe that the preferred distributions likely will meet the first two requirements to be presumed to be a guaranteed payment; however, it is not entirely clear if the “reasonable” prong can be satisfied. Because the safe harbor rate is determined with respect to the highest applicable federal rate in effect from the time of the Exchange Offer until the close of taxable year, it cannot currently be ascertained whether the preferred distribution rate will fall within the safe harbor. Furthermore, it is possible that the IRS could challenge the application of the safe harbor to the preferred distributions payable on the Preferred Units because the limited partners will not contribute additional capital to the Company at the time their right to receive the preferred distribution is established under the Company’s partnership agreement.

Even if the preferred distributions on Preferred Units are not presumed to be guaranteed payments for purposes of the disguised sale rules, we believe they should not be treated as part of a disguised sale with respect to the Consolidation Transaction under the general standards discussed above. The quarterly preferred distributions to be paid on Preferred Units are not intended to liquidate the limited partner’s investment, but rather to provide a return on the investment in the Company. Accordingly, we do not intend to treat the preferred distributions as part of a disguised sale. However, if the safe harbor does not apply, additional tax disclosures will be required with respect to the treatment of such preferred distributions for limited partners who participated in the Consolidation Transactions for any preferred distributions payable within two years of the Consolidation Transaction pursuant to Treasury Regulations Section 1.707-8 (currently on IRS Form

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8275). If the Company determines such disclosure to be required, the Company will make such disclosure on behalf of the applicable limited partners as permitted under the Treasury Regulations.

Special Considerations for Limited Partners That Are Non-U.S. Persons

Limited partners that are non-U.S. persons may be subject to taxation and withholding tax under the Foreign Investment in Real Property Tax Act (“FIRPTA”) in connection with the Exchange Offer and may be required to complete certain reporting and disclosure requirements under the applicable Treasury Regulations in order to mitigate or avoid current tax and withholding. Non-U.S. limited partners are urged to consult their own tax advisors regarding the application of FIRPTA to their participation in the Exchange Offer.

Tax Consequences of Owning Preferred Units

The U.S. federal income tax considerations associated with the ownership, redemption, sale or other disposition of Preferred Units are substantially similar to those with respect to the OP Units. Except as discussed below with respect to preferred distributions treated as guaranteed payments, distributions on Preferred Units generally will not result in the recognition of income or gain unless the holder receives a distribution in excess of its adjusted tax basis in all of its units (including Preferred Units and OP Units).

Preferred Distributions Treated as Guaranteed Payments

We expect the preferred distributions to be treated as guaranteed payments for capital under Code Section 707(c). Code Section 707(c) provides that a guaranteed payment is any payment to a partner by a partnership that is determined without regard to partnership income and is for the use of that partner’s capital. Such guaranteed payments are treated as ordinary income for the limited partner’s taxable year within or with which ends the Company taxable year in which the payments are made or accrued. Although the law is not entirely clear, we currently intend to report the preferred distributions as accruing currently, whether or not such preferred distributions are actually paid. As a result, the preferred distributions could result in a Preferred Unitholder recognizing ordinary income without a corresponding payment from the Company. Preferred Unitholders thus would be required to pay such ordinary income tax from sources other than the preferred distributions.

We expect the preferred distributions to be treated as guaranteed payments for capital under Code Section 707(c) regardless of whether the distributions are presumed to be guaranteed payments for purposes of the safe harbor in the disguised sale rules discussed above.

Guaranteed payments for the use of capital are treated as portfolio income for purposes of the passive activity loss limitation under Code Section 469. The passive activity loss rules generally limit the deductibility of passive activity losses against portfolio income and may limit the ability of a limited partner who holds both OP Units and Preferred Units to offset losses (if any) allocated to such limited partner by the Company in respect of its OP Units against the preferred distributions on the Preferred Units.

Under the proposed Treasury regulations under Code Section 1411, guaranteed payments for capital are treated as net investment income generally subject to the additional 3.8% Medicare tax. This 3.8% Medicare tax also generally applies to the allocations of Company income, taxable distributions and gain from sale of Units by the non-corporate limited partners, irrespective of the Exchange Offer.

Allocations

Limited partners who exchange OP Units for Preferred Units will remain subject to the special allocation rules of Code Section 704(c) with respect to assets contributed by their predecessor partnerships in the Contribution Transaction. Under Code Section 704(c), income, gain, loss and deduction attributable to appreciated or depreciated property that is contributed to a partnership in exchange for an interest in the partnership must be allocated for tax purposes in a manner such that

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the contributing partner is charged with, or benefits from, the unrealized gain or unrealized loss associated with the property at the time of the contribution. The amount of the unrealized gain or unrealized loss is initially equal to the difference between the fair market value, or book value, of the contributed property and the adjusted tax basis of such property at the time of the contribution (a “Book-Tax Difference”). Book-Tax Differences are adjusted to reflect any amortization (i.e., depreciation) of the contributed asset for book and tax purposes. In the event that the Company disposes in a taxable transaction of an asset which was contributed by a limited partner’s predecessor partnership in the Contribution Transactions, gain attributable to the unamortized Book-Tax Difference of such contributed asset generally will be disproportionately allocated to such limited partner. Similar rules apply to a limited partner’s share of any incremental Book-Tax Difference attributable to a revaluation of the Company’s assets in connection with restating the partners’ Capital Accounts to fair market value, including the restatement expected to be made in connection with the exchange.

Holders of Preferred Units will not be entitled to receive any additional cash distributions (in excess of the preferred distributions otherwise payable by the Company) with respect to income and gain allocable to them on the sale of a contributed (or revalued) asset. As a result, notwithstanding the preferred distributions, holders of Preferred Units may not receive sufficient cash distributions from the Company to pay their taxes on the income and gain allocated to them.

Tax Basis

Your basis in your interests in the Company generally would not change as a result of the Exchange Offer, except to the extent your basis is reduced (but not below zero) by all or a portion of the amount of any deemed distribution resulting from a decrease in your allocable share of the Company’s liabilities. See “—Reduction in Share of Liabilities/Deemed Cash Distribution.” If you have such a reduction in basis, you can generally expect that distributions of cash by the Company (e.g., with respect to any OP Units that you retain) and any deemed distributions resulting from subsequent reductions in your share of the Company’s liabilities may be taxable to you sooner than would be the case if such basis reduction had not occurred. Such basis reduction would also affect your ability to deduct your share of the Company’s tax losses. Your basis in your interest in the Company will generally be increased by any increases in your share of liabilities of the Company.

Holding Period

Your holding period in your Company interests will not change as a result of participating in the Exchange Offer.

Tax Treatment of Redemption of Preferred Units

Redemption by the Company of all or a portion of your Preferred Units will generally be treated as a taxable transaction for U.S. federal income tax purposes to the extent described below. It is possible that the amount of gain recognized (or even the U.S. federal income tax liability resulting from such gain) by you upon a redemption of such units could exceed the amount of cash received upon such exercise, in part by reason of an additional deemed distribution to you as a result of a reduction in the Company’s liabilities allocable to you.

You generally would recognize gain on a redemption of all or a portion of your Preferred Units (including a retirement of your Preferred Units in connection with the liquidation of the Company) if and to the extent that the cash redemption amount, together with any deemed distribution resulting from a reduction in the Company’s liabilities allocable to you, exceed your adjusted tax basis in all of your interests in the Company immediately before the redemption (including both Preferred Units and OP Units). You will not be permitted to recognize any loss until the complete liquidation of your interest in the Company. Generally, any gain (or loss) you recognize upon a redemption will be treated as gain from sale or exchange of a capital asset; provided that you could recognize ordinary gain or loss (separately from any capital gain or loss otherwise recognized in the redemption) to the extent that the redemption reduces your interest in certain “unrealized receivables” and “substantially appreciated inventory items” held by the Company.

64

MISCELLANEOUS

We are not aware of any jurisdiction in which the making of the Exchange Offer is not in compliance with applicable law. If we become aware of any U.S. jurisdiction in which the making of the Exchange Offer would not be in compliance with applicable state law, we will make a good faith effort to comply with any such state law. If, after such good faith effort, we cannot comply with any such law, the Exchange Offer will not be made to (nor will tenders of OP Units be accepted from or on behalf of) the unitholders residing in such U.S. jurisdiction.

No person has been authorized to give any information or make any representation on our behalf not contained in this Exchange Offer or in the letters of transmittal and, if given or made, such information or representation must not be relied upon as having been authorized.

Recipients of this Offer to Exchange and the accompanying materials should not construe the contents hereof or thereof as legal, business or tax advice. Each recipient should consult its own attorney, business advisor and tax advisor as to legal, business, tax and related matters concerning the Exchange Offer.

CERTAIN SECURITIES LAWS CONSIDERATIONS

All of the OP Units outstanding as of the date of this Offer to Exchange were either issued in an offering that was registered pursuant to the Securities Act or are otherwise freely tradable under U.S. securities laws, other than in the case of OP Units held by our affiliates. The issuance of Preferred Units upon exchange of the OP Units is exempt from registration pursuant to Section 3(a)(9) of the Securities Act. Section 3(a)(9) provides an exemption from registration for any security exchanged by an issuer with its existing security holders exclusively where no commission or other remuneration is paid or given directly or indirectly for soliciting such exchange. When securities are exchanged for other securities of an issuer under Section 3(a)(9), the securities received in essence assume the character of the exchanged securities for purposes of the Securities Act. Because all outstanding OP Units were either registered under the Securities Act or are otherwise freely tradable under U.S. securities laws, we expect that all of our Preferred Units issued in the Exchange Offer to persons not affiliated with us will be freely tradable under U.S. securities laws by such non-affiliates. Any Preferred Units issued in the Exchange Offer to persons or entities who are affiliated with us will not be freely tradable and any resale would have to be registered under the Securities Act, or comply with applicable exemptions under the securities laws, which may include Rule 144 under the Securities Act. You are urged to consult with your own legal counsel regarding the availability of a resale exemption from the registration requirements of the Securities Act.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available over the Internet at the SEC’s web site at www.sec.gov. You may also read and copy any Offer to Exchange we file at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for more information on the Public Reference Room and its copy charges.

The internet website address of our general partner is www.empirestaterealtytrust.com. We make available free of charge, through our internet website, our annual report on Form 10-K, our quarterly reports on Form 10-Q, our current reports on Form 8-K and any amendments to those reports that we file or furnish pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The information contained in or accessible from our internet website is not part of this Offer to Exchange unless specifically incorporated by reference herein.

65

This Offer to Exchange incorporates by reference the information we file with the SEC, which means that we can disclose important information to you by referring you to those documents. We (or our general partner) have filed the documents listed below with the SEC and these documents are incorporated herein by reference:

• our Annual Report on Form 10-K for the fiscal year ended December 31, 2013, filed on March 24, 2014;

• our Quarterly Report on Form 10-Q for the three months ended March 31, 2014, filed on May 7, 2014;

• our Current Report on Form 8-K, filed on May 22, 2014;

• ESRT’s Definitive Proxy Statement on Schedule 14A, dated and filed on April 25, 2014; and

• the description of the Series ES OP Units, Series 60 OP Units, Series 250 OP Units and Series PR OP Units contained in our registration statement on Form S-4 originally filed on February 13, 2012 (Registration No. 333-179486-01), as amended.

We have not authorized anyone to give any information or make any representation about the Exchange Offer that is different from, or in addition to, that contained in this Offer to Exchange. Therefore, you should not rely on any other information. If you are in a U.S. jurisdiction where offers to purchase or sell, or solicitations of offers to purchase or sell, the securities offered by this Offer to Exchange are unlawful, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this Offer to Exchange does not extend to you. The information contained in this Offer to Exchange speaks only as of the date of this Offer to Exchange unless the information specifically indicates that another date applies.

The Depositary for the Exchange Offer is:

American Stock Transfer and Trust Company

By Mail:
Operations Center
Attn: Reorganization Department
P.O. Box 2042
New York, New York 10272-2042 By Hand or Courier:
Operations Center
Attn: Reorganization Department
6201 15th Avenue
Brooklyn, New York 11219

The Information Agent for the Exchange Offer is:

MacKenzie Partners, Inc.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

66

EX-99.(A)(1)(B)(I)

Exhibit (a)(1)(B)(i)

LETTER OF TRANSMITTAL

FORUSEBYREGISTEREDHOLDERS OF
SERIES ES OPERATING PARTNERSHIP UNITS

To tender your OP Units:

(1)	Indicate the number of Series ES OP Units you wish to tender in the box below.
(2)	Sign and date this form in the box entitled “Important: Sign Here to Tender Your OP Units” on the following page.
(3)	Return the signed and completed Letter of Transmittal in the enclosed envelope to:

EMPIRE STATE REALTY TRUST

c/o American Stock Transfer & Trust Company
Attn: Reorganization Department
P.O. Box 2042
New York, New York 10272-2042

Pursuant to the offer (the “Exchange Offer”) of Empire State Realty OP, L.P., a Delaware limited partnership (the “Company”), to exchange units of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) on a one-for-one basis for a portion of the Company’s outstanding common operating partnership units, including Series ES Operating Partnership Units (“Series ES OP Units”), the undersigned hereby tenders the following Series ES OP Units:

DESCRIPTION OF SERIES ES OP UNITS TENDERED
Name(s) and Address(es) of Registered Owner(s)	Total Number of Series ES OP Units Held by Registered Owner(s)	Number of Series ES OP Units Tendered*
(Write in your name and address)
	(Write in the total number of Series ES OP Units that you own below)	(Write in the number of Series ES OP Units you wish to tender below)

* If you sign and return this Letter of Transmittal without indicating the number of units you wish to tender, it will be assumed that you are tendering all Series ES OP Units owned by you.

For detailed instructions on how to complete this Letter of Transmittal, please see the section entitled
“The Exchange Offer” in the accompanying Offer to Exchange, dated May 28, 2014.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact
MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by
email at tenderoffer@mackenziepartners.com.

IMPORTANT: SIGN HERE TO TENDER YOUR OP UNITS*

(Signature(s) of Unitholder(s))

Dated: , 2014

Name(s):

(Please Print)

Capacity (full title):

Address:

(Include Zip Code)

Area Code and Telephone Number:

Tax Identification or
Social Security No.:

* By signing, the unitholder hereby acknowledges that the unitholder has read the instructions on how to complete this Letter of Transmittal contained in the section entitled “The Exchange Offer” in the Offer to Exchange, dated May 28, 2014, and agrees to the representations in the exhibit marked “Exhibit to Letter of Transmittal” attached hereto.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by email at tenderoffer@mackenziepartners.com.

You may also contact your broker, dealer, commercial bank or trust company or other nominee for assistance concerning the Exchange Offer.

Note regarding signatures: If this Letter of Transmittal is signed by the registered owner(s) of the Series ES OP Units tendered hereby, the signature(s) must correspond with the name(s) of such owners on the record books of the Company. If any Series ES OP Units tendered hereby are owned of record by two or more joint owners, all such owners must sign this Letter of Transmittal. If any tendered Series ES OP Units are registered in the names of different holder(s), it will be necessary to complete, sign and submit as many separate Letters of Transmittal (or facsimiles thereof) as there are different registrations of such Series ES OP Units. If this Letter of Transmittal is signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, such persons should so indicate when signing, and proper evidence satisfactory to the Company of their authority so to act must be submitted.

2

EXHIBIT TO LETTER OF TRANSMITTAL
Forming Part of the Terms and Conditions of the Exchange Offer

Ladies and Gentlemen:

Upon the terms and conditions of the Exchange Offer (including, if the Exchange Offer is extended or amended, the terms and conditions of such extension of amendment), the undersigned hereby tenders to the Company the number of Series ES OP Units described in the box above entitled “Description of Series ES OP Units Tendered.” Subject to and effective upon the acceptance of the Series ES OP Units tendered hereby, the undersigned hereby assigns and transfers to the Company all right, title and interest in and to such Series ES OP Units as are being tendered hereby, and releases and discharges the Company, Empire State Realty Trust, Inc. (“ESRT”), and the officers and directors of ESRT, from any and all claims the undersigned may have now, or may have in the future, arising out of, or related to, such Series ES OP Units.

The undersigned understands that if the Exchange Offer is successfully completed, the undersigned will receive, on a one-for-one basis, a number of Preferred Units with a liquidation preference of $16.62 per unit equal to the number of OP Units acquired by the Company. The Company expects that Preferred Units will be issued in exchange for OP Units acquired in the Exchange Offer promptly after the Expiration Date, subject to the terms and conditions of the Exchange Offer. Any OP Units not accepted will be returned to the registered holder(s) signing this Letter of Transmittal promptly following the expiration or termination of the Exchange Offer. The undersigned hereby acknowledges receipt of the Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”), the terms of which are incorporated herein by reference.

The undersigned hereby represents and warrants that (i) the undersigned has full power and authority to tender, sell, assign and transfer the Series ES OP Units, (ii) the undersigned has a net long position in the Series ES OP Units tendered hereby within the meaning of Rule 14e-4 under the Securities Exchange Act of 1934, as amended (“Rule 14e-4”), (iii) the tender of the Series ES OP Units tendered hereby complies with Rule 14e-4, and (iv) when the Series ES OP Units are accepted for exchange by the Company, the Company will acquire good, marketable and unencumbered title thereto, free and clear of all liens, restrictions, charges and encumbrances and the same will not be subject to any adverse claim.

The undersigned hereby represents and warrants that the undersigned is the registered owner of the Series ES OP Units. The undersigned will, upon request, execute and deliver any additional documents deemed by the Depositary or the Company to be necessary or desirable to complete the sale, assignment and transfer of the Series ES OP Units.

The undersigned hereby irrevocably constitutes and appoints American Stock Transfer & Trust Company, LLC (the “Depositary”) as its agent and attorney in fact, with full power and authority in its name, place and stead, with full knowledge that the Depositary is also acting as the agent of the Company in connection with the Exchange Offer, as the undersigned’s true and lawful representative, attorney in fact and agent with respect to the tendered Series ES OP Units, with full power of substitution, such power of attorney being deemed to be an irrevocable power coupled with an interest, subject only to the right of withdrawal described in the Offer to Exchange. Such appointment will be automatically revoked if the Company does not accept the Series ES OP Units that the undersigned has tendered. The foregoing power of attorney shall terminate upon execution by the Depositary of an instrument of termination that specifies in writing that the foregoing power of attorney is terminated.

All authority conferred or agreed to be conferred pursuant to this Letter of Transmittal shall not be affected by, and shall survive, the death or incapacity of the undersigned and any obligation of the undersigned hereunder shall be binding upon the heirs, executors, administrators, trustees in bankruptcy, personal representatives, successors and assigns of the undersigned. Except as stated herein or in the Offer to Exchange, this tender is irrevocable. This tender may be withdrawn only in accordance with the procedures set forth in the section of the Offer to Exchange entitled “The Exchange Offer—Withdrawal of Tenders.”

The undersigned understands that the acceptance by the Company of Series ES OP Units validly tendered and not properly withdrawn after the Expiration Date will constitute a binding agreement between the undersigned and the Company upon the terms and subject to the conditions of the Exchange Offer.

Please deliver the Preferred Units that are payable in exchange for the undersigned’s tendered Series ES OP Units (or a statement acknowledging the issuance and recording of such Preferred Units on the record books of the Company) and/or please return any Series ES OP Units not tendered or accepted for exchange to (or credit the appropriate account of) the registered holder(s) at the address appearing under the above “Description of Series ES OP Units Tendered” box.

The undersigned acknowledges that no alternative, conditional or contingent tenders will be accepted and no fractional Series ES OP Units will be purchased. By execution of this Letter of Transmittal (or facsimile thereof), the undersigned hereby waives any right to receive any notice of the acceptance of their Series ES OP Units for exchange.

3

The Information Agent for the Exchange Offer is:

MACKENZIE PARTNERS, INC.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

If you need further instructions on how to complete this Letter of Transmittal, or to find additional information about the Exchange Offer, please refer to the detailed instructions and information provided in the enclosed Offer to Exchange and accompanying materials.

Before you decide to exchange your existing units for Private Perpetual Preferred Units, we urge you to carefully read the enclosed Offer to Exchange in its entirety, including the information set forth under “Risk Factors” and the information incorporated by reference therein. We also urge you to consult your own financial and tax advisors in making your own decisions on what action, if any, to take in light of your own particular circumstances.

EX-99.(A)(1)(B)(II)

Exhibit (a)(1)(B)(ii)

LETTER OF TRANSMITTAL

FORUSEBYREGISTEREDHOLDERS OF
SERIES 60 OPERATING PARTNERSHIP UNITS

To tender your OP Units:

(1)	Indicate the number of Series 60 OP Units you wish to tender in the box below.
(2)	Sign and date this form in the box entitled “Important: Sign Here to Tender Your OP Units” on the following page.
(3)	Return the signed and completed Letter of Transmittal in the enclosed envelope to:

EMPIRE STATE REALTY TRUST

c/o American Stock Transfer & Trust Company
Attn: Reorganization Department
P.O. Box 2042
New York, New York 10272-2042

Pursuant to the offer (the “Exchange Offer”) of Empire State Realty OP, L.P., a Delaware limited partnership (the “Company”), to exchange units of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) on a one-for-one basis for a portion of the Company’s outstanding common operating partnership units, including Series 60 Operating Partnership Units (“Series 60 OP Units”), the undersigned hereby tenders the following Series 60 OP Units:

DESCRIPTION OF SERIES 60 OP UNITS TENDERED
Name(s) and Address(es) of Registered Owner(s)	Total Number of Series 60 OP Units Held by Registered Owner(s)	Number of Series 60 OP Units Tendered*
(Write in your name and address)
	(Write in the total number of Series 60 OP Units that you own below)	(Write in the number of Series 60 OP Units you wish to tender below)

* If you sign and return this Letter of Transmittal without indicating the number of units you wish to tender, it will be assumed that you are tendering all Series 60 OP Units owned by you.

For detailed instructions on how to complete this Letter of Transmittal, please see the section entitled
“The Exchange Offer” in the accompanying Offer to Exchange, dated May 28, 2014.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact
MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by
email at tenderoffer@mackenziepartners.com.

IMPORTANT: SIGN HERE TO TENDER YOUR OP UNITS*

(Signature(s) of Unitholder(s))

Dated: , 2014

Name(s):

(Please Print)

Capacity (full title):

Address:

(Include Zip Code)

Area Code and Telephone Number:

Tax Identification or
Social Security No.:

* By signing, the unitholder hereby acknowledges that the unitholder has read the instructions on how to complete this Letter of Transmittal contained in the section entitled “The Exchange Offer” in the Offer to Exchange, dated May 28, 2014, and agrees to the representations in the exhibit marked “Exhibit to Letter of Transmittal” attached hereto.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by email at tenderoffer@mackenziepartners.com.

You may also contact your broker, dealer, commercial bank or trust company or other nominee for assistance concerning the Exchange Offer.

Note regarding signatures: If this Letter of Transmittal is signed by the registered owner(s) of the Series 60 OP Units tendered hereby, the signature(s) must correspond with the name(s) of such owners on the record books of the Company. If any Series 60 OP Units tendered hereby are owned of record by two or more joint owners, all such owners must sign this Letter of Transmittal. If any tendered Series 60 OP Units are registered in the names of different holder(s), it will be necessary to complete, sign and submit as many separate Letters of Transmittal (or facsimiles thereof) as there are different registrations of such Series 60 OP Units. If this Letter of Transmittal is signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, such persons should so indicate when signing, and proper evidence satisfactory to the Company of their authority so to act must be submitted.

2

EXHIBIT TO LETTER OF TRANSMITTAL
Forming Part of the Terms and Conditions of the Exchange Offer

Ladies and Gentlemen:

Upon the terms and conditions of the Exchange Offer (including, if the Exchange Offer is extended or amended, the terms and conditions of such extension of amendment), the undersigned hereby tenders to the Company the number of Series 60 OP Units described in the box above entitled “Description of Series 60 OP Units Tendered.” Subject to and effective upon the acceptance of the Series 60 OP Units tendered hereby, the undersigned hereby assigns and transfers to the Company all right, title and interest in and to such Series 60 OP Units as are being tendered hereby, and releases and discharges the Company, Empire State Realty Trust, Inc. (“ESRT”), and the officers and directors of ESRT, from any and all claims the undersigned may have now, or may have in the future, arising out of, or related to, such Series 60 OP Units.

The undersigned understands that if the Exchange Offer is successfully completed, the undersigned will receive, on a one-for-one basis, a number of Preferred Units with a liquidation preference of $16.62 per unit equal to the number of OP Units acquired by the Company. The Company expects that Preferred Units will be issued in exchange for OP Units acquired in the Exchange Offer promptly after the Expiration Date, subject to the terms and conditions of the Exchange Offer. Any OP Units not accepted will be returned to the registered holder(s) signing this Letter of Transmittal promptly following the expiration or termination of the Exchange Offer. The undersigned hereby acknowledges receipt of the Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”), the terms of which are incorporated herein by reference.

The undersigned hereby represents and warrants that (i) the undersigned has full power and authority to tender, sell, assign and transfer the Series 60 OP Units, (ii) the undersigned has a net long position in the Series 60 OP Units tendered hereby within the meaning of Rule 14e-4 under the Securities Exchange Act of 1934, as amended (“Rule 14e-4”), (iii) the tender of the Series 60 OP Units tendered hereby complies with Rule 14e-4, and (iv) when the Series 60 OP Units are accepted for exchange by the Company, the Company will acquire good, marketable and unencumbered title thereto, free and clear of all liens, restrictions, charges and encumbrances and the same will not be subject to any adverse claim.

The undersigned hereby represents and warrants that the undersigned is the registered owner of the Series 60 OP Units. The undersigned will, upon request, execute and deliver any additional documents deemed by the Depositary or the Company to be necessary or desirable to complete the sale, assignment and transfer of the Series 60 OP Units.

The undersigned hereby irrevocably constitutes and appoints American Stock Transfer & Trust Company, LLC (the “Depositary”) as its agent and attorney in fact, with full power and authority in its name, place and stead, with full knowledge that the Depositary is also acting as the agent of the Company in connection with the Exchange Offer, as the undersigned’s true and lawful representative, attorney in fact and agent with respect to the tendered Series 60 OP Units, with full power of substitution, such power of attorney being deemed to be an irrevocable power coupled with an interest, subject only to the right of withdrawal described in the Offer to Exchange. Such appointment will be automatically revoked if the Company does not accept the Series 60 OP Units that the undersigned has tendered. The foregoing power of attorney shall terminate upon execution by the Depositary of an instrument of termination that specifies in writing that the foregoing power of attorney is terminated.

All authority conferred or agreed to be conferred pursuant to this Letter of Transmittal shall not be affected by, and shall survive, the death or incapacity of the undersigned and any obligation of the undersigned hereunder shall be binding upon the heirs, executors, administrators, trustees in bankruptcy, personal representatives, successors and assigns of the undersigned. Except as stated herein or in the Offer to Exchange, this tender is irrevocable. This tender may be withdrawn only in accordance with the procedures set forth in the section of the Offer to Exchange entitled “The Exchange Offer—Withdrawal of Tenders.”

The undersigned understands that the acceptance by the Company of Series 60 OP Units validly tendered and not properly withdrawn after the Expiration Date will constitute a binding agreement between the undersigned and the Company upon the terms and subject to the conditions of the Exchange Offer.

Please deliver the Preferred Units that are payable in exchange for the undersigned’s tendered Series 60 OP Units (or a statement acknowledging the issuance and recording of such Preferred Units on the record books of the Company) and/or please return any Series 60 OP Units not tendered or accepted for exchange to (or credit the appropriate account of) the registered holder(s) at the address appearing under the above “Description of Series 60 OP Units Tendered” box.

The undersigned acknowledges that no alternative, conditional or contingent tenders will be accepted and no fractional Series 60 OP Units will be purchased. By execution of this Letter of Transmittal (or facsimile thereof), the undersigned hereby waives any right to receive any notice of the acceptance of their Series 60 OP Units for exchange.

3

The Information Agent for the Exchange Offer is:

MACKENZIE PARTNERS, INC.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

If you need further instructions on how to complete this Letter of Transmittal, or to find additional information about the Exchange Offer, please refer to the detailed instructions and information provided in the enclosed Offer to Exchange and accompanying materials.

Before you decide to exchange your existing units for Private Perpetual Preferred Units, we urge you to carefully read the enclosed Offer to Exchange in its entirety, including the information set forth under “Risk Factors” and the information incorporated by reference therein. We also urge you to consult your own financial and tax advisors in making your own decisions on what action, if any, to take in light of your own particular circumstances.

EX-99.(A)(1)(B)(III)

Exhibit (a)(1)(B)(iii)

LETTER OF TRANSMITTAL

FORUSEBYREGISTEREDHOLDERS OF
SERIES 250 OPERATING PARTNERSHIP UNITS

To tender your OP Units:

(1)	Indicate the number of Series 250 OP Units you wish to tender in the box below.
(2)	Sign and date this form in the box entitled “Important: Sign Here to Tender Your OP Units” on the following page.
(3)	Return the signed and completed Letter of Transmittal in the enclosed envelope to:

EMPIRE STATE REALTY TRUST

c/o American Stock Transfer & Trust Company
Attn: Reorganization Department
P.O. Box 2042
New York, New York 10272-2042

Pursuant to the offer (the “Exchange Offer”) of Empire State Realty OP, L.P., a Delaware limited partnership (the “Company”), to exchange units of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) on a one-for-one basis for a portion of the Company’s outstanding common operating partnership units, including Series 250 Operating Partnership Units (“Series 250 OP Units”), the undersigned hereby tenders the following Series 250 OP Units:

DESCRIPTION OF SERIES 250 OP UNITS TENDERED
Name(s) and Address(es) of Registered Owner(s)	Total Number of Series 250 OP Units Held by Registered Owner(s)	Number of Series 250 OP Units Tendered*
(Write in your name and address)
	(Write in the total number of Series 250 OP Units that you own below)	(Write in the number of Series 250 OP Units you wish to tender below)

* If you sign and return this Letter of Transmittal without indicating the number of units you wish to tender, it will be assumed that you are tendering all Series 250 OP Units owned by you.

For detailed instructions on how to complete this Letter of Transmittal, please see the section entitled “The
Exchange Offer” in the accompanying Offer to Exchange, dated May 28, 2014.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact
MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by
email at tenderoffer@mackenziepartners.com.

IMPORTANT: SIGN HERE TO TENDER YOUR OP UNITS*

(Signature(s) of Unitholder(s))

Dated: , 2014

Name(s):

(Please Print)

Capacity (full title):

Address:

(Include Zip Code)

Area Code and Telephone Number:

Tax Identification or
Social Security No.:

* By signing, the unitholder hereby acknowledges that the unitholder has read the instructions on how to complete this Letter of Transmittal contained in the section entitled “The Exchange Offer” in the Offer to Exchange, dated May 28, 2014, and agrees to the representations in the exhibit marked “Exhibit to Letter of Transmittal” attached hereto.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by email at tenderoffer@mackenziepartners.com.

You may also contact your broker, dealer, commercial bank or trust company or other nominee for assistance concerning the Exchange Offer.

Note regarding signatures: If this Letter of Transmittal is signed by the registered owner(s) of the Series 250 OP Units tendered hereby, the signature(s) must correspond with the name(s) of such owners on the record books of the Company. If any Series 250 OP Units tendered hereby are owned of record by two or more joint owners, all such owners must sign this Letter of Transmittal. If any tendered Series 250 OP Units are registered in the names of different holder(s), it will be necessary to complete, sign and submit as many separate Letters of Transmittal (or facsimiles thereof) as there are different registrations of such Series 250 OP Units. If this Letter of Transmittal is signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, such persons should so indicate when signing, and proper evidence satisfactory to the Company of their authority so to act must be submitted.

2

EXHIBIT TO LETTER OF TRANSMITTAL
Forming Part of the Terms and Conditions of the Exchange Offer

Ladies and Gentlemen:

Upon the terms and conditions of the Exchange Offer (including, if the Exchange Offer is extended or amended, the terms and conditions of such extension of amendment), the undersigned hereby tenders to the Company the number of Series 250 OP Units described in the box above entitled “Description of Series 250 OP Units Tendered.” Subject to and effective upon the acceptance of the Series 250 OP Units tendered hereby, the undersigned hereby assigns and transfers to the Company all right, title and interest in and to such Series 250 OP Units as are being tendered hereby, and releases and discharges the Company, Empire State Realty Trust, Inc. (“ESRT”), and the officers and directors of ESRT, from any and all claims the undersigned may have now, or may have in the future, arising out of, or related to, such Series 250 OP Units.

The undersigned understands that if the Exchange Offer is successfully completed, the undersigned will receive, on a one-for-one basis, a number of Preferred Units with a liquidation preference of $16.62 per unit equal to the number of OP Units acquired by the Company. The Company expects that Preferred Units will be issued in exchange for OP Units acquired in the Exchange Offer promptly after the Expiration Date, subject to the terms and conditions of the Exchange Offer. Any OP Units not accepted will be returned to the registered holder(s) signing this Letter of Transmittal promptly following the expiration or termination of the Exchange Offer. The undersigned hereby acknowledges receipt of the Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”), the terms of which are incorporated herein by reference.

The undersigned hereby represents and warrants that (i) the undersigned has full power and authority to tender, sell, assign and transfer the Series 250 OP Units, (ii) the undersigned has a net long position in the Series 250 OP Units tendered hereby within the meaning of Rule 14e-4 under the Securities Exchange Act of 1934, as amended (“Rule 14e-4”), (iii) the tender of the Series 250 OP Units tendered hereby complies with Rule 14e-4, and (iv) when the Series 250 OP Units are accepted for exchange by the Company, the Company will acquire good, marketable and unencumbered title thereto, free and clear of all liens, restrictions, charges and encumbrances and the same will not be subject to any adverse claim.

The undersigned hereby represents and warrants that the undersigned is the registered owner of the Series 250 OP Units. The undersigned will, upon request, execute and deliver any additional documents deemed by the Depositary or the Company to be necessary or desirable to complete the sale, assignment and transfer of the Series 250 OP Units.

The undersigned hereby irrevocably constitutes and appoints American Stock Transfer & Trust Company, LLC (the “Depositary”) as its agent and attorney in fact, with full power and authority in its name, place and stead, with full knowledge that the Depositary is also acting as the agent of the Company in connection with the Exchange Offer, as the undersigned’s true and lawful representative, attorney in fact and agent with respect to the tendered Series 250 OP Units, with full power of substitution, such power of attorney being deemed to be an irrevocable power coupled with an interest, subject only to the right of withdrawal described in the Offer to Exchange. Such appointment will be automatically revoked if the Company does not accept the Series 250 OP Units that the undersigned has tendered. The foregoing power of attorney shall terminate upon execution by the Depositary of an instrument of termination that specifies in writing that the foregoing power of attorney is terminated.

All authority conferred or agreed to be conferred pursuant to this Letter of Transmittal shall not be affected by, and shall survive, the death or incapacity of the undersigned and any obligation of the undersigned hereunder shall be binding upon the heirs, executors, administrators, trustees in bankruptcy, personal representatives, successors and assigns of the undersigned. Except as stated herein or in the Offer to Exchange, this tender is irrevocable. This tender may be withdrawn only in accordance with the procedures set forth in the section of the Offer to Exchange entitled “The Exchange Offer—Withdrawal of Tenders.”

The undersigned understands that the acceptance by the Company of Series 250 OP Units validly tendered and not properly withdrawn after the Expiration Date will constitute a binding agreement between the undersigned and the Company upon the terms and subject to the conditions of the Exchange Offer.

Please deliver the Preferred Units that are payable in exchange for the undersigned’s tendered Series 250 OP Units (or a statement acknowledging the issuance and recording of such Preferred Units on the record books of the Company) and/or please return any Series 250 OP Units not tendered or accepted for exchange to (or credit the appropriate account of) the registered holder(s) at the address appearing under the above “Description of Series 250 OP Units Tendered” box.

The undersigned acknowledges that no alternative, conditional or contingent tenders will be accepted and no fractional Series 250 OP Units will be purchased. By execution of this Letter of Transmittal (or facsimile thereof), the undersigned hereby waives any right to receive any notice of the acceptance of their Series 250 OP Units for exchange.

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The Information Agent for the Exchange Offer is:

MACKENZIE PARTNERS, INC.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

If you need further instructions on how to complete this Letter of Transmittal, or to find additional information about the Exchange Offer, please refer to the detailed instructions and information provided in the enclosed Offer to Exchange and accompanying materials.

Before you decide to exchange your existing units for Private Perpetual Preferred Units, we urge you to carefully read the enclosed Offer to Exchange in its entirety, including the information set forth under “Risk Factors” and the information incorporated by reference therein. We also urge you to consult your own financial and tax advisors in making your own decisions on what action, if any, to take in light of your own particular circumstances.

EX-99.(A)(1)(B)(IV)

Exhibit (a)(1)(B)(iv)

LETTER OF TRANSMITTAL

FORUSEBYREGISTEREDHOLDERS OF
SERIES PR OPERATING PARTNERSHIP UNITS

To tender your OP Units:

(1)	Indicate the number of Series PR OP Units you wish to tender in the box below.
(2)	Sign and date this form in the box entitled “Important: Sign Here to Tender Your OP Units” on the following page.
(3)	Return the signed and completed Letter of Transmittal in the enclosed envelope to:

EMPIRE STATE REALTY TRUST

c/o American Stock Transfer & Trust Company
Attn: Reorganization Department
P.O. Box 2042
New York, New York 10272-2042

Pursuant to the offer (the “Exchange Offer”) of Empire State Realty OP, L.P., a Delaware limited partnership (the “Company”), to exchange units of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) on a one-for-one basis for a portion of the Company’s outstanding common operating partnership units, including Series PR Operating Partnership Units (“Series PR OP Units”), the undersigned hereby tenders the following Series PR OP Units:

DESCRIPTION OF SERIES PR OP UNITS TENDERED
Name(s) and Address(es) of Registered Owner(s)	Total Number of Series PR OP Units Held by Registered Owner(s)	Number of Series PR OP Units Tendered*
(Write in your name and address)
	(Write in the total number of Series PR OP Units that you own below)	(Write in the number of Series PR OP Units you wish to tender below)

* If you sign and return this Letter of Transmittal without indicating the number of units you wish to tender, it will be assumed that you are tendering all Series PR OP Units owned by you.

For detailed instructions on how to complete this Letter of Transmittal, please see the section entitled
“The Exchange Offer” in the accompanying Offer to Exchange, dated May 28, 2014.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact
MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by
email at tenderoffer@mackenziepartners.com.

IMPORTANT: SIGN HERE TO TENDER YOUR OP UNITS*

(Signature(s) of Unitholder(s))

Dated: , 2014

Name(s):

(Please Print)

Capacity (full title):

Address:

(Include Zip Code)

Area Code and Telephone Number:

Tax Identification or
Social Security No.:

* By signing, the unitholder hereby acknowledges that the unitholder has read the instructions on how to complete this Letter of Transmittal contained in the section entitled “The Exchange Offer” in the Offer to Exchange, dated May 28, 2014, and agrees to the representations in the exhibit marked “Exhibit to Letter of Transmittal” attached hereto.

If you have any questions or need assistance in completing this Letter of Transmittal, please contact MacKenzie Partners, Inc., the Information Agent for the Exchange Offer, at (888) 410-7850 (toll-free), or by email at tenderoffer@mackenziepartners.com.

You may also contact your broker, dealer, commercial bank or trust company or other nominee for assistance concerning the Exchange Offer.

Note regarding signatures: If this Letter of Transmittal is signed by the registered owner(s) of the Series PR OP Units tendered hereby, the signature(s) must correspond with the name(s) of such owners on the record books of the Company. If any Series PR OP Units tendered hereby are owned of record by two or more joint owners, all such owners must sign this Letter of Transmittal. If any tendered Series PR OP Units are registered in the names of different holder(s), it will be necessary to complete, sign and submit as many separate Letters of Transmittal (or facsimiles thereof) as there are different registrations of such Series PR OP Units. If this Letter of Transmittal is signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, such persons should so indicate when signing, and proper evidence satisfactory to the Company of their authority so to act must be submitted.

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EXHIBIT TO LETTER OF TRANSMITTAL
Forming Part of the Terms and Conditions of the Exchange Offer

Ladies and Gentlemen:

Upon the terms and conditions of the Exchange Offer (including, if the Exchange Offer is extended or amended, the terms and conditions of such extension of amendment), the undersigned hereby tenders to the Company the number of Series PR OP Units described in the box above entitled “Description of Series PR OP Units Tendered.” Subject to and effective upon the acceptance of the Series PR OP Units tendered hereby, the undersigned hereby assigns and transfers to the Company all right, title and interest in and to such Series PR OP Units as are being tendered hereby, and releases and discharges the Company, Empire State Realty Trust, Inc. (“ESRT”), and the officers and directors of ESRT, from any and all claims the undersigned may have now, or may have in the future, arising out of, or related to, such Series PR OP Units.

The undersigned understands that if the Exchange Offer is successfully completed, the undersigned will receive, on a one-for-one basis, a number of Preferred Units with a liquidation preference of $16.62 per unit equal to the number of OP Units acquired by the Company. The Company expects that Preferred Units will be issued in exchange for OP Units acquired in the Exchange Offer promptly after the Expiration Date, subject to the terms and conditions of the Exchange Offer. Any OP Units not accepted will be returned to the registered holder(s) signing this Letter of Transmittal promptly following the expiration or termination of the Exchange Offer. The undersigned hereby acknowledges receipt of the Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”), the terms of which are incorporated herein by reference.

The undersigned hereby represents and warrants that (i) the undersigned has full power and authority to tender, sell, assign and transfer the Series PR OP Units, (ii) the undersigned has a net long position in the Series PR OP Units tendered hereby within the meaning of Rule 14e-4 under the Securities Exchange Act of 1934, as amended (“Rule 14e-4”), (iii) the tender of the Series PR OP Units tendered hereby complies with Rule 14e-4, and (iv) when the Series PR OP Units are accepted for exchange by the Company, the Company will acquire good, marketable and unencumbered title thereto, free and clear of all liens, restrictions, charges and encumbrances and the same will not be subject to any adverse claim.

The undersigned hereby represents and warrants that the undersigned is the registered owner of the Series PR OP Units. The undersigned will, upon request, execute and deliver any additional documents deemed by the Depositary or the Company to be necessary or desirable to complete the sale, assignment and transfer of the Series PR OP Units.

The undersigned hereby irrevocably constitutes and appoints American Stock Transfer & Trust Company, LLC (the “Depositary”) as its agent and attorney in fact, with full power and authority in its name, place and stead, with full knowledge that the Depositary is also acting as the agent of the Company in connection with the Exchange Offer, as the undersigned’s true and lawful representative, attorney in fact and agent with respect to the tendered Series PR OP Units, with full power of substitution, such power of attorney being deemed to be an irrevocable power coupled with an interest, subject only to the right of withdrawal described in the Offer to Exchange. Such appointment will be automatically revoked if the Company does not accept the Series PR OP Units that the undersigned has tendered. The foregoing power of attorney shall terminate upon execution by the Depositary of an instrument of termination that specifies in writing that the foregoing power of attorney is terminated.

All authority conferred or agreed to be conferred pursuant to this Letter of Transmittal shall not be affected by, and shall survive, the death or incapacity of the undersigned and any obligation of the undersigned hereunder shall be binding upon the heirs, executors, administrators, trustees in bankruptcy, personal representatives, successors and assigns of the undersigned. Except as stated herein or in the Offer to Exchange, this tender is irrevocable. This tender may be withdrawn only in accordance with the procedures set forth in the section of the Offer to Exchange entitled “The Exchange Offer—Withdrawal of Tenders.”

The undersigned understands that the acceptance by the Company of Series PR OP Units validly tendered and not properly withdrawn after the Expiration Date will constitute a binding agreement between the undersigned and the Company upon the terms and subject to the conditions of the Exchange Offer.

Please deliver the Preferred Units that are payable in exchange for the undersigned’s tendered Series PR OP Units (or a statement acknowledging the issuance and recording of such Preferred Units on the record books of the Company) and/or please return any Series PR OP Units not tendered or accepted for exchange to (or credit the appropriate account of) the registered holder(s) at the address appearing under the above “Description of Series PR OP Units Tendered” box.

The undersigned acknowledges that no alternative, conditional or contingent tenders will be accepted and no fractional Series PR OP Units will be purchased. By execution of this Letter of Transmittal (or facsimile thereof), the undersigned hereby waives any right to receive any notice of the acceptance of their Series PR OP Units for exchange.

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The Information Agent for the Exchange Offer is:

MACKENZIE PARTNERS, INC.

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
Call Toll-Free (888) 410-7850
Email: tenderoffer@mackenziepartners.com

If you need further instructions on how to complete this Letter of Transmittal, or to find additional information about the Exchange Offer, please refer to the detailed instructions and information provided in the enclosed Offer to Exchange and accompanying materials.

Before you decide to exchange your existing units for Private Perpetual Preferred Units, we urge you to carefully read the enclosed Offer to Exchange in its entirety, including the information set forth under “Risk Factors” and the information incorporated by reference therein. We also urge you to consult your own financial and tax advisors in making your own decisions on what action, if any, to take in light of your own particular circumstances.

EX-99.(A)(1)(C)

Exhibit (a)(1)(C)

EMPIRE STATE REALTY OP, L.P.
Offer To Exchange
Private Perpetual Preferred Operating Partnership Units
for
Series ES Operating Partnership Units
Series 60 Operating Partnership Units
Series 250 Operating Partnership Units
and
Series Pr Operating Partnership Units

THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
12:00 MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014
UNLESS EXTENDED OR TERMINATED BY US.

May 28, 2014

To Brokers, Dealers and Other Nominees:

Empire State Realty OP, L.P. (the “Company,” “our,” “we” or “us”) is offering to acquire up to 15,000,000 of the Company’s outstanding common operating partnership units (“OP Units”) on a one-for-one basis in exchange for an equal number of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”), with a liquidation preference of $16.62 per unit, which was the closing price of the Class A common stock of our general partner, Empire State Realty Trust, Inc., on the New York Stock Exchange on May 23, 2014, upon the terms and conditions set forth in the Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”) and in the related Letters of Transmittal (which together, as amended, supplemented or otherwise modified from time to time, collectively constitute the “Exchange Offer”).

If all conditions to the Exchange Offer are satisfied or waived, the Company will acquire a total of 15,00,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units, on a pro rata basis from all tendering holders of OP Units, disregarding fractions, according to the number of OP Units tendered by each holder. Any OP Units not accepted will be credited back to the appropriate account promptly following the expiration or termination of the Exchange Offer. The Exchange Offer is conditioned upon, among other things, there being validly tendered and not withdrawn at least 1,200,000 OP Units. We expect that holders of OP Units who tender their OP Units in the Exchange Offer will still receive full distributions for all periods during which they held the OP Units and we expect that the exchange of OP Units for Preferred Units in the Exchange Offer will not cause a holder to recognize gain for tax purposes. The description of the Exchange Offer in this letter is only a summary and is qualified by all of the terms and conditions of the Exchange Offer set forth in the Offer to Exchange and the Letters of Transmittal.

WE URGE YOU TO CONTACT YOUR CLIENTS AS PROMPTLY AS POSSIBLE IN ORDER TO OBTAIN THEIR INSTRUCTIONS. THE OFFER WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014, OR SUCH OTHER DATE TO WHICH THE OFFER MAY BE EXTENDED.

In connection with the Exchange Offer, please forward copies of the enclosed materials to your clients for whom you hold Series ES OP Units, Series 60 OP Units, Series 250 OP Units or Series PR OP Units registered in your name or in the name of your nominee. For your information and for forwarding to your clients, we are enclosing the following documents:

1.	Offer to Exchange, dated May 28, 2014;
2.	a Letter of Transmittal for each series of OP Units for your use and for the information of your clients;

3.	a form of letter that may be sent to your clients for whose accounts you hold OP Units registered in your name or in the name of your nominee, with space provided for obtaining such clients’ instructions with regard to the Exchange Offer; and
4.	a cover letter from the Company briefly describing the Exchange Offer.

Participants of The Depository Trust Company (the “DTC”) will be able to execute tenders through the DTC’s Automated Tender Offer Program. No guaranteed delivery procedures are being offered in connection with the Exchange Offer.

MacKenzie Partners, Inc. is acting as Information Agent and American Stock Transfer & Trust Company, LLC is acting as Depositary in connection with the Exchange Offer. The Information Agent may contact holders of OP Units by mail, telephone, facsimile and personal interviews and may request brokers, dealers and other nominee stockholders to forward materials relating to the Exchange Offer to beneficial owners. The Information Agent and the Depositary will each receive reasonable and customary compensation for their respective services and will be reimbursed by us for reasonable out-of-pocket expenses. The Information Agent will be indemnified against certain liabilities in connection with the Exchange Offer, including certain liabilities under the federal securities laws.

Under no circumstances will interest by paid on the consideration payable for OP Units, regardless of extension of, or amendment to, the Exchange Offer or any delay in delivering such consideration. The Company will not pay any fees or commissions to brokers, dealers, other nominees or other persons for soliciting tenders of OP Units in connection with the Exchange Offer. The Company will, however, upon request, reimburse brokers, dealers and other nominees for customary clerical and mailing expenses incurred by them in forwarding materials to their customers. Transfer taxes on the acquisition of OP Units pursuant to the Exchange Offer, if any, will be paid by us.

Questions regarding the terms of the Exchange Offer, and requests for assistance or for additional copies of the Offer to Exchange and any other required documents, may be directed to the Information Agent at the address and telephone numbers set forth on the back cover of the Offer to Exchange.

Sincerely,

EMPIRE STATE REALTY OP, L.P.

NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL RENDER YOU THE AGENT OF THE COMPANY, OUR GENERAL PARTNER, THE INFORMATION AGENT OR THE DEPOSITARY, OR AUTHORIZE YOU OR ANY OTHER PERSON TO USE ANY DOCUMENT OR MAKE ANY STATEMENT ON BEHALF OF ANY OF THEM IN CONNECTION WITH THE EXCHANGE OFFER NOT CONTAINED IN THE OFFER TO EXCHANGE OR THE LETTERS OF TRANSMITTAL.

2

EX-99.(A)(1)(D)

Exhibit (a)(1)(D)

EMPIRE STATE REALTY OP, L.P.
Offer To Exchange
Private Perpetual Preferred Operating Partnership Units
for
Series ES Operating Partnership Units
Series 60 Operating Partnership Units
Series 250 Operating Partnership Units
and
Series PR Operating Partnership Units

THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
12:00 MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014
UNLESS EXTENDED OR TERMINATED BY THE COMPANY.

May 28, 2014

To Our Clients:

Enclosed for your consideration is an Offer to Exchange, dated May 28, 2014 (the “Offer to Exchange”), the related Letter of Transmittal (which together with the Offer to Exchange, as amended, supplemented or otherwise modified from time to time, collectively constitute the “Exchange Offer”) and an Instructions From Beneficial Owner form relating to the offer of Empire State Realty OP, L.P. (the “Company”) to acquire up to 15,000,000 of the Company’s outstanding common operating partnership units (“OP Units”) on a one-for-one basis in exchange for an equal number of its newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”), with a liquidation preference of $16.62 per unit, which was the closing price of the Class A common stock of the Company’s general partner, Empire State Realty Trust, Inc., on the New York Stock Exchange on May 23, 2014, upon the terms and conditions set forth in the Offer to Exchange.

If all conditions to the Exchange Offer are satisfied or waived, the Company will acquire a total of 15,000,000 OP Units, or approximately 10.0% of the total number of outstanding OP Units, on a pro rata basis from all tendering holders of Series ES OP Units, Series 60 OP Units, Series 250 OP Units and Series PR OP Units, disregarding fractions, according to the number of OP Units tendered by each holder. Any OP Units not accepted will be credited back to the appropriate account promptly following the expiration or termination of the Exchange Offer. The Exchange Offer is conditioned upon, among other things, there being validly tendered and not withdrawn at least 1,200,000 OP Units.

THE OFFER WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014, OR SUCH OTHER DATE TO WHICH THE OFFER MAY BE EXTENDED (THE “EXPIRATION DATE”).

The Company expects that holders of OP Units who tender their OP Units in the Exchange Offer will still receive full distributions for all periods during which they held the OP Units and we expect that the exchange of OP Units for Preferred Units in the Exchange Offer will not cause a holder to recognize gain for tax purposes. The description of the Exchange Offer in this letter is only a summary and is qualified by all of the terms and conditions of the Exchange Offer set forth in the Offer to Exchange and the Letter of Transmittal.

We are the holder of record (directly or indirectly) of OP Units held for your account. A tender of such OP Units can be made only by us pursuant to your instructions. PLEASE DO NOT COMPLETE THE LETTER OF TRANSMITTAL. The enclosed Letter of Transmittal is furnished to you for your information only and cannot be used by you to tender OP Units held by us for your account.

We, as holders of OP Units on your behalf, are being requested to tender OP Units for acquisition by the Company pursuant to the terms and conditions of the Exchange Offer.

We, as holders of OP Units on your behalf, cannot tender your OP Units unless you instruct us to take such actions by completing, executing and returning to us the Instructions From Beneficial Owner form enclosed herein. Accordingly, we request instructions as to whether you wish us to tender on your behalf the OP Units held by us for your account, pursuant to the terms and conditions set forth in the enclosed Offer to Exchange. Your instructions should be forwarded to us as promptly as possible in order to permit us to tender the OP Units on your behalf in accordance with the terms and conditions of the Offer to Exchange.

Your attention is directed to the following:

1.	The Exchange Offer and withdrawal rights will expire at 12:00 midnight, New York City time, on June 26, 2014, unless the Company extends the Exchange Offer or the Exchange Offer is terminated.
2.	If you desire to tender any OP Units pursuant to the Exchange Offer and receive the consideration therefor, we must receive your instructions in ample time to permit us to affect a tender of the OP Units on your behalf on or prior to the Expiration Date.
3.	The Exchange Offer is conditional upon, among other things, at least 1,200,000 OP Units having been validly tendered and not withdrawn prior to the expiration of the Exchange Offer. See “The Exchange Offer—Conditions of the Exchange Offer” in the Offer to Exchange.
4.	Any transfer taxes incident to the transfer of OP Units by the tendering holder will be paid by the Company, except as otherwise provided in the Offer to Exchange and the related Letter of Transmittal.

If you wish to have us tender your OP Units, please so instruct us by completing, executing and returning to us the Instructions From Beneficial Owner form on the back of this letter.

An exchange of OP Units for Preferred Units may not be suitable for you. You must make your own decision whether to tender OP Units in the Exchange Offer. Neither we, the Company, its general partner, the information agent, the depositary nor any other person is making any recommendation as to whether or not you should tender your OP Units for exchange in the Exchange Offer.

2

PLEASE RETURN THIS FORM TO THE BROKERAGE FIRM MAINTAINING YOUR ACCOUNT

INSTRUCTIONS FROM BENEFICIAL OWNER

WITH RESPECT TO

EMPIRE STATE REALTY OP, L.P.
Offer To Exchange
Private Perpetual Preferred Operating Partnership Units
for
Series ES Operating Partnership Units
Series 60 Operating Partnership Units
Series 250 Operating Partnership Units
and
Series PR Operating Partnership Units

THE OFFER AND WITHDRAWAL RIGHTS EXPIRE
AT MIDNIGHT, NEW YORK CITY TIME, ON JUNE 26, 2014
UNLESS EXTENDED OR TERMINATED BY THE COMPANY

The undersigned acknowledge(s) receipt of your letter and the enclosed materials referred to therein relating to an offer (the “Exchange Offer”) by Empire State Realty OP, L.P. (the “Company”) to exchange up to 15,000,000 units of the Company’s newly-issued Private Perpetual Preferred Operating Partnership Units (“Preferred Units”) on a one-for-one basis for up to 15,000,000 operating partnership units (“OP Units”), or approximately 10.0% of the total number of outstanding OP Units, pro rata across all four series of OP Units, disregarding fractions, according to the number of OP Units tendered by each holder, pursuant to the terms and conditions described in the Offer to Exchange, dated May 28, 2014 (as amended, supplemented or otherwise modified from time to time, the “Offer to Exchange”), and the related Letter of Transmittal for each series of OP Units.

Instruction to tender shares: This will instruct you to tender the number of OP Units set forth below and held by you for the account of the undersigned, upon and subject to the terms and conditions set forth in the Offer to Exchange.

The undersigned expressly agrees to be bound by the terms of the Exchange Offer as set forth in the Offer to Exchange and such terms may be enforced against the undersigned.

Series ES Operating Partnership Units

Please tender units of Series ES Operating Partnership Units held by you for my account as indicated below in the Exchange Offer.

Series 60 Operating Partnership Units

Please tender units of Series 60 Operating Partnership Units held by you for my account as indicated below in the Exchange Offer.

Series 250 Operating Partnership Units

Please tender units of Series 250 Operating Partnership Units held by you for my account as indicated below in the Exchange Offer.

Series PR Operating Partnership Units

Please tender units of Series PR Operating Partnership Units held by you for my account as indicated below in the Exchange Offer.

3

If no amount is provided above with respect to the number of units of any or all series of OP Units to be tendered and this Instructions From Beneficial Owner form is signed in the space provided below, you are authorized to tender with respect to the entire amount of each series OP Units in which you hold an interest through The Depository Trust Company for my account.

Dated: , 2014     

Signature(s) of Beneficial Owner(s):

Name(s) of beneficial owner(s) (Please Print)

Capacity (full title)

Address

City                                                                                                                                       Zip Code

Area Code and Telephone No.

Tax ID No. or Social Security No.

NONE OF THE OP UNITS HELD FOR THE BENEFICIAL OWNER’S ACCOUNT WILL BE TENDERED UNLESS WRITTEN INSTRUCTION TO DO SO IS PROVIDED.

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EX-99.(A)(1)(E)

Exhibit (a)(1)(E)

May 28, 2014

Dear Unitholder in Empire State Realty OP, L.P. (ESRO):

Unitholders who rely on income generated by their investments have expressed a desire to obtain more distributions from their ESRO investment.

We now offer you the option to exchange some or all of your existing units in ESRO one-for-one, for new Private Perpetual Preferred Units. If you exchange, you will receive an increase in annual distribution from the current rate per unit of $0.34 to $0.60, an increase of more than 75%. The exchange will continue deferral of your embedded taxable gain. This is a private transaction, and is only available to ESRO investors. There will be no public offering of the Private Perpetual Preferred Units.

As an example of the increase in distribution to be made available through the exchange, a holder of 10,000 units who now receives distributions of $3,400 each year would receive distributions of $6,000 per year from 10,000 units of the new Private Perpetual Preferred Units. These distributions will have seniority over distributions on your current ESRO units and Class A and Class B common shares.

Each new Private Perpetual Preferred Unit will have a fixed liquidation value of $16.62, which is equal to the closing price of the Class A common stock of Empire State Realty Trust, Inc. (“ESRT”), on the New York Stock Exchange on May 23, 2014, the day prior to the printing of the enclosed offering materials. We do not have the right to redeem the Private Perpetual Preferred Units except upon sale or change of control of the Company, in which case the redemption price payable to you would be 200% of your liquidation value.

An exchange may not be suitable for you. The Private Perpetual Preferred Units should be considered illiquid. We do not intend to list the Private Perpetual Preferred Units on any exchange. Unlike your existing units, the new units will not be convertible or exchangeable into any other security. If you exchange your existing units for new Private Perpetual Preferred Units, you also give up the right to any future appreciation of our Company as a whole.

When we made the Private Perpetual Preferred Unit distribution rate more than 75% higher than the current distribution rate payable of your ESRO units, we did not consider the current yield of preferred securities of any other public REIT. While other preferred securities can be purchased to replace your ESRO units at significantly higher dividend yields, such replacement would require that you sell your ESRO units, pay tax, and reinvest a post-tax amount.

We are offering to exchange a maximum of 15,000,000 preferred units for our outstanding units in Series ES, Series 60, Series 250, and Series PR (or approximately 10.0% of the total number of outstanding units). If more than 15,000,000 outstanding units are tendered for exchange, we will acquire units on a pro rata basis from all tendering holders according to the number of units tendered by each holder.

Our exchange offer will expire at midnight, New York City time, on June 26, 2014, unless extended or earlier terminated by us.

You must make your own decision whether to tender any or all of your existing units for preferred units. None of ESRO, ESRT, the information agent, the depositary or any other person is making any recommendation as to whether or not you should make this exchange.

If you are interested, you should review the enclosed offering materials carefully.

If you would like to hear a pre-recorded conference call with me and Executive Vice President and General Counsel Thomas N. Keltner regarding the exchange offering, please call toll-free (877) 870-5176 and enter code 227853, or go to the Presentations tab of the Investor Relations section at www.empirestaterealtytrust.com. The Q&A component of our call with be updated periodically to reflect investor questions. Please feel free to submit a question for that purpose at any time by email to ppp@empirestaterealtytrust.com.

If you have transferred any security from AST to a brokerage account, you will also receive another package containing a slightly different Letter of Transmittal for each Series of units held by you in such brokerage account (without the item 2 instruction booklet). Please call the information agent MacKenzie Partners, Inc. at the number below with any question.

It is necessary to complete forms from each package, if you want to exchange the applicable units for Private Perpetual Preferred Units. We apologize for any duplication due to the different protocols of two different mailing services. There are slight differences in format between the two packages, and we encourage you to contact the information agent with any question.

If you have any question, need additional copies of the documents, or require assistance in completing the related forms, you may contact the information agent, MacKenzie Partners, Inc., toll-free at (888) 410-7850.

Sincerely,

EMPIRE STATE REALTY OP, L.P.
By: Empire State Realty Trust, Inc., its general partner

Anthony E. Malkin
Chairman, Chief Executive Officer and President

EX-99.(A)(1)(F)

Exhibit (a)(1)(F)

EMPIRE STATE REALTY TRUST How to Exchange Your OP Units for Private Perpetual Preferred Units Sample Letter of Transmittal with step-by-step instructions inside.

PAGE 1 Enter the NUMBER OF OP UNITS from the Series that you wish to TENDER in the box on the right. The total number of OP Units that you own from the Series is provided for your convenience.

PAGE 2 1. SIGN the top of the page to tender your OP Units. 2. Enter the DATE. à 3. Print your NAME. 4. If you are completing this form yourself, write “SELF” on the next line. 5. Enter your ADDRESS. à 6. Enter your PHONE NUMBER. 7. Enter your SOCIAL SECURITY NUMBER. YOU ARE DONE! MAIL THE COMPLETED FORM USING THE PREPAID ENVELOPE PROVIDED IN THESE MATERIALS.

www.EmpireStateRealtyTrust.com Before you make your decision, we urge you to carefully read the enclosed Offer to Exchange in its entirety, including the information set forth under “Risk Factors” and the information incorporated by reference therein. We also urge you to consult your own financial and tax advisors in making your own decisions on what action, if any, to take in light of your own particular circumstances. You must make your own investment decision regarding the Exchange Offer based upon your own assessment of the market value of the OP Units, your liquidity needs, your investment objectives and any other factors you deem relevant. None of the directors, officers and employees of Empire State Realty Trust, Inc., the information agent or the depositary is making a recommendation to you as to whether you should tender OP Units in the Exchange Offer.

EX-99.(A)(1)(G)

Exhibit (a)(1)(G)

May 28, 2014

DOCUMENT PACKAGE GUIDE

Dear Unitholder in Empire State Realty OP, L.P. (ESRO):

We now offer you the option to exchange some or all of your existing units in ESRO for new Private Perpetual Preferred Units. If you exchange, you will receive an increase in annual distribution from the current rate of $0.34 to $0.60, an increase of more than 75%.

This is a guide to the exchange offering documents enclosed which you should review, including the Letter of Transmittal to be signed and returned by you if you decide to exchange all or part of your existing units for higher-yielding Private Perpetual Preferred Units:

1.	Letter from Anthony E. Malkin, the Chairman, CEO and President of Empire State Realty Trust
2.	Instruction booklet for completing the Letter(s) of Transmittal
3.	Letter(s) of Transmittal to be completed, signed and returned by you if you elect to exchange your existing units for Private Perpetual Preferred Units

• You are receiving in this package one Letter of Transmittal (each in a different color) for each of your accounts at the depositary AST: one account for your units in a Series still subject to lock-up and a separate account for your unrestricted balance in such Series.

• If you have transferred any securities from AST to a brokerage account, you will also receive another package containing a slightly different Letter of Transmittal for each Series of units held by you in such brokerage account (without the item 2 instruction booklet). Please call MacKenzie Partners, Inc. at the number below with any question.

• Important note: you must complete a form for each account from which you wish to exchange units for Private Perpetual Preferred Units. We apologize for any duplication necessitated due to the different protocols of two different mailing services.

4.	Postage-prepaid return envelope
5.	Offer of Exchange with detailed disclosure regarding this exchange offer.

We suggest you first read the letter from Anthony Malkin for an overview of the exchange offering. In addition, if you would like to hear a pre-recorded conference call with Mr. Malkin and Executive Vice President and General Counsel Thomas N. Keltner regarding the exchange offering, please call toll-free (877) 870-5176 and enter code 227853, or go to the Presentations tab of the Investor Relations section at www.empirestaterealtytrust.com. The Q&A component of their call will be updated periodically to reflect investor questions. Please feel free to submit a question for that purpose at any time by email to ppp@empirestaterealtytrust.com.

We have engaged MacKenzie Partners, Inc. to assist in answering your inquiries. If you have any question or need assistance in completing the Letter(s) of Transmittal, please call toll-free (888) 410-7850. Additionally, certain Empire State Realty Trust professionals with whom you are familiar will be available to speak with unitholders.

You must make your own decision whether to tender any or all of your existing units for Private Perpetual Preferred Units. None of ESRO, ESRT, the information agent, the depositary or any other person is making any recommendation as to whether or not you should make this exchange.

Unless extended, the exchange offer is scheduled to expire on June 26, 2014. Thank you for your timely attention.

EX-99.(A)(5)(A)

Exhibit (a)(5)(A)

Empire state realty trust LAUNCHES PRIVATE PERPETUAL preferred stock EXCHANGE OFFER

OPERATING PARTNERSHIP UNITHOLDERS OFFERED GREATER THAN 75% INCREASE IN DISTRIBUTION, IN TAX-DEFERRED SECURITY

MANAGEMENT BELIEVES TRANSACTION CONSISTENT WITH OBJECTIVES TO DRIVE SHAREHOLDER VALUE AND INCREASE DISTRIBUTIONS

New York, New York, May 28, 2014 - Empire State Realty Trust, Inc. (NYSE: ESRT) (the "Company"), a leading real estate investment trust with office and retail properties in Manhattan and the greater New York metropolitan area, today announced that it is commencing an exchange offer for up to $250 million of the operating partnership (“OP”) units (the “Exchange Offer”) of Empire State Realty OP, L.P. (“ESRO”).

Upon completion of the Exchange Offer, all OP units tendered will be converted on a one-for-one basis into Private Perpetual Preferred Units of ESRO (the “Preferred Units”) paying $0.60 per unit per annum, giving unitholders an increase in annual distribution from their current $0.34 to $0.60, a more than 75% increase.

The transaction is only available to current OP unitholders, is not being sold to the public, and will continue the tax-deferral status unitholders achieved in ESRT’s formation transactions. The Exchange Offer is conditioned on customary conditions that are more fully described in the Exchange Offer materials, which have been filed with the Securities and Exchange Commission (the “SEC”) and sent to OP unitholders. The lead underwriters of ESRT’s initial public offering have waived certain “lock-up” restrictions to allow participation in the Exchange Offer by OP unitholders.

Anthony E. Malkin, Empire State Realty Trust’s Chairman, CEO and President, said: “Management believes this transaction is consistent with our stated objectives to drive shareholder value and increase distributions. We believe this may be a compelling alternative for certain OP unitholders who derive a significant percentage of their total income from their investment in us by offering them a materially higher current return. We are pleased to offer this unique, tax-deferred opportunity to our OP unitholders, many of whom have expressed a desire for a higher yielding security.”

The Exchange Offer will expire at midnight, New York City time, on June 26, 2014, unless extended or earlier terminated by the Company (such date and time, as the same may be modified, the “Expiration Date"). Holders who tender their OP units may withdraw them at any time prior to the Expiration Date. In addition, after the Expiration Date, holders may withdraw any OP units that were tendered but not accepted for exchange within 40 business days after the commencement of the Exchange Offer. Subject to applicable law, the Company may, in its sole and absolute discretion, amend, extend or waive conditions to, or terminate, the Exchange Offer.

The full details of the Exchange Offer, including complete instructions on how to exchange OP units, are included in the offer to exchange, the letters of transmittal and related materials. OP unitholders should read the offer to exchange and other related materials carefully because they contain important information. OP unitholders may obtain free copies of the offer to exchange and other related materials from the SEC’s website at www.sec.gov. The Company has retained MacKenzie Partners, Inc. to serve as information agent in connection with the Offer. Requests for documents and questions regarding the Exchange Offer may be directed to MacKenzie Partners, Inc. at (888) 410-7850.

This is a purely optional exchange for OP unitholders. None of ESRT, its directors, officers or employees are making a recommendation to unitholders as to whether they should tender OP units in the Exchange

Offer. Each holder of OP units must make such holder’s own investment decision regarding the Exchange Offer based upon such holder’s own assessment of the value of the OP units, individual liquidity and investment objectives, and any other factors such holder deems relevant.

The Exchange Offer is being made pursuant to an exemption from registration under Section 3(a)(9) of the Securities Act of 1933. The Exchange Offer is not being made in any jurisdiction, or to or from any person, which would make such offer or solicitation unlawful under applicable securities laws. This press release is for informational purposes only and is not an offer to buy or the solicitation of an offer to sell any securities.

About Empire State Realty Trust

Empire State Realty Trust, Inc. (NYSE: ESRT), a leading real estate investment trust (REIT), owns, manages, operates, acquires and repositions office and retail properties in Manhattan and the greater New York metropolitan area, including the Empire State Building, the world's most famous office building. Headquartered in New York, New York, the Company's office and retail portfolio covers 8.4 million rentable square feet, as of March 31, 2014, consisting of 7.7 million rentable square feet in 12 office properties, including seven in Manhattan, three in Fairfield County, Connecticut and two in Westchester County, New York; and approximately 623,000 rentable square feet in the retail portfolio. The Company also owns land at the Stamford, Connecticut Transportation Center that supports the development of an approximately 380,000 rentable square foot office building and garage and has recently exercised its options to acquire the ground lease of two additional Manhattan office properties encompassing approximately 1.5 million rentable square feet of office space and over 150,000 rentable square feet of retail space at the base of the buildings.

Forward-Looking Statements

This press release includes "forward looking statements". Forward-looking statements may be identified by the use of words such as "believes," "expects," "may," "will," "should," "seeks," "approximately," "intends," "plans," "pro forma," "estimates," "contemplates," "aims," "continues," "would" or "anticipates" or the negative of these words and phrases or similar words or phrases. The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements: the factors included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, including those set forth under the headings "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations," and "Business,” and “Properties." While forward-looking statements reflect the Company's good faith beliefs, they are not guarantees of future performance. The Company disclaims any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes after the date of this press release, except as required by applicable law. For a further discussion of these and other factors that could impact the Company's future results, performance or transactions, see the section entitled "Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, and other risks described in documents subsequently filed by the Company from time to time with the Securities and Exchange Commission. Prospective investors should not place undue reliance on any forward-looking statements, which are based only on information currently available to the Company (or to third parties making the forward-looking statements).

Contact:

MacKenzie Partners, Inc.

(888) 410-7850

EX-99.(A)(5)(B)

Exhibit (a)(5)(B)

Private Perpetual Preferred Unit Exchange Offer

Transcript of Recorded Investor Presentation

Anthony E. Malkin:

· Hello, I’m Anthony Malkin, Chairman, CEO and President of Empire State Realty Trust, or ESRT. Thank you for joining this call on which we will give unitholders an overview of the offer we have made to exchange operating partnership units, one-for-one, for a new Private Perpetual Preferred Unit which we believe will give those investors who choose to exchange more than a 75% increase in distributions while continuing the tax deferral investors have enjoyed from the original formation transactions. Joining me on the call is Thomas Keltner, executive vice president and general counsel of Empire State Realty Trust.

· There are thousands of unitholders, too many for us to engage in a live question and answer period. At the end of the call, we will answer a few questions which have already been asked by unitholders. Of course, you have contact information from the mailing to ask your own questions. Additionally, you can send a question by e-mail to us at ppp@empirestaterealtytrust.com. Again, that address is ppp@empirestaterealtytrust.com. I now introduce Thomas Keltner who will give a brief overview of the exchange offer.

Thomas N. Keltner, Jr.:

· Thank you, Tony, I’m Tom Keltner, and I am executive vice president and general counsel of Empire State Realty Trust, or ESRT. On this call, we are going to talk about ESRT’s commencement of an exchange offer for up to $250 million of our operating partnership – or OP – units which will give those investors who choose to exchange a more than 75% increase in distributions. Under the terms of the exchange offer, at any time during this offering, any holder of OP units has the option to exchange all or a portion of his or her OP units, on a one-for-one basis, for a new type of higher-yielding security called Private Perpetual Preferred Units. This exchange is voluntary. Even if you have units which are subject to lock-up, you can participate. If you decide not to participate, there will be no change in your rights, or the status of the remaining lock-up period for your holdings, nor your right to convert to shares of Class A common stock of ESRT. As noted in our documents, these new Private Perpetual Preferred Units will not be offered for sale. This is an offer exclusively to our unitholders who own units at the time of the exchange. They are the only individuals allowed to participate. Back to you, Tony.

Anthony E. Malkin:

· Thanks, Tom. Many of our unitholders rely on distributions from ESRT to cover their living expenses in part or exclusively. Our decision to make this offer was motivated by the expression of many of our unitholders to have a higher rate of distributions. As I mentioned, under this Private Perpetual Preferred exchange program, unitholders can receive an increase in their distributions of more than 75%. What does that mean to a unitholder who decides to make the exchange? The current distribution to a unitholder is at an annual rate of $0.34 each year. The Perpetual Private Preferred Units will pay distributions at the annual rate of $0.60 each year. In further illustration, let’s use this example: assume you are a unitholder who owns 10,000 units. You now receive distributions of $3,400 each year, and you would receive distributions of $6,000 each year if you were to exchange your 10,000 OP units for the new Private Perpetual Preferred Units. If you want to determine your own benefits from this exchange, you can use these numbers to match. As stated before, this

offer is only available to existing unitholders during the exchange offer, and will not be sold to the public. There are a few additional benefits which Tom Keltner will now explain.

Thomas N. Keltner, Jr.:

· Thanks, Tony. I will now explain some more of the characteristics of the new Private Perpetual Preferred Units. Each unit will have a priority, fixed liquidation value of $16.62, which is equal to the closing price of the Class A common stock of ESRT on the New York Stock Exchange on May 23, 2014, the day prior to the printing of the offering materials you have received. That priority means that the new Private Perpetual Preferred Units will be junior only to debt and senior to any other obligation of ESRT. In case of liquidation of ESRT, that will be your priority payment. That priority means that before common shareholders are paid dividends, before ordinary unitholders are paid their distribution, holders of Private Perpetual Preferred Units must receive their distributions. Additionally, the Private Perpetual Preferred Units can only be redeemed by ESRT upon sale or change of control of the Company, in which case the redemption price payable to you would be 200% of your liquidation value. To be clear, ESRT can only redeem the Private Perpetual Preferred Units by paying those who choose to make the exchange $33.34, double the fixed liquidation value, and only upon sale or change of control of ESRT. Tony?

Anthony E. Malkin:

· Thanks Tom. We believe that a tax-deferred opportunity to increase distributions by more than 75%, a chance to receive a priority in distributions, a liquidation preference of $16.62, and a restriction of ESRT’s right to redeem limited to sale or change of control, and then for $33.34, may be a compelling alternative for those unitholders who derive a significant percentage of their total income from their investment in ESRT. Remember, like the original formation transactions, we believe the transaction will continue the deferral of your embedded taxable gain. Tom?

Thomas N. Keltner, Jr.:

· The following are important disclosures present in the documents we sent you which we recommend you read. This exchange is limited and may not be suitable for all OP unit holders. The new preferred units will be illiquid. We do not intend to list them on any exchange, and unlike existing units, the new units will not be convertible or exchangeable into any other security. The value of these units in liquidation will be fixed at $16.62 and can only be redeemed under limited circumstances and then at a price of $33.34, and if there is other appreciation of ESRT in the future, you will have limited your potential to these amounts for each unit you exchange.

· The offer is only available to current unit holders and is not being made to the public. The offer also is subject to customary conditions that are more fully described in the exchange offer materials, which have been filed with the Securities and Exchange Commission and have been sent to all OP unit holders.

· Though we cannot go through all the details of the offer here, I would highlight just a few items of which you should be aware:

o First, the offer is for a maximum of approximately $250 million in OP units, which equates to 15,000,000 Private Perpetual Preferred Units for our outstanding units in Series ES, Series 60, Series 250, and Series PR, or approximately 10.0% of the total number of outstanding units. This means that if the offer is oversubscribed, each unit holder will get

a pro-rated amount of preferred units, proportional to the amount they tendered relative to others;

o Second, OP unit holders may participate in the offer notwithstanding the lock-up provisions of the initial public offering. The lead underwriters of ESRT’s initial public offering have waived certain lock-up restrictions to allow participation in the offer; and

o Third, the offer will expire at midnight, New York City time, on June 26, unless extended or terminated earlier. We currently anticipate the exchange offer closing date will occur on or before July 1, 2014, although the date is subject to change.

· Again, the full description of the Offer and its conditions are on file with the SEC and has been sent to all OP unit holders. I encourage you to read the materials carefully if you think you may be interested in the offer. Tony?

Anthony E. Malkin:

· Thanks, Tom. Now, Brad Cohen, of our investor relations team at ICR will ask several questions which our investors have raised.

Brad Cohen:

· Q: What are the tax consequences of exchanging my units for Private Perpetual Preferred Units?

Anthony E. Malkin:

· A: As noted in our SEC filed materials, we believe the exchange will not result in any recognition of gain or loss, and you will continue to defer your embedded taxable gain. We recommend you consult with your tax advisor to confirm your individual circumstances.

Brad Cohen:

· Q: Will there be a trading market for the new units?

Anthony E. Malkin:

· A: We do not intend to list the units on an exchange, and we do not expect a trading market to develop. You should consider the Private Perpetual Preferred Units as a long-term illiquid investment.

Brad Cohen:

· Q: Will the new units be freely transferrable?

Anthony E. Malkin:

· A: Yes, you may transfer your units at any time without any lockup or minimum holding period.

Brad Cohen:

· Q: How do I elect the new units and when will I receive them?

Anthony E. Malkin:

· A: You make the election to exchange by completing the forms you have received. Remember, if you have transferred any of your holdings from AST to your own brokerage account, you will need to fill out a form for the AST account and your own brokerage account to the extent you wish to participate from both accounts. You can call our information agent if you need additional copies of the documents or need help in completing a form. We anticipate closing the exchange offer on June 26, 2014 and issuing the new units on a settlement date around July 1, 2014. You will receive distributions on your common units for all periods until commencing your entitlement for the higher distributions on the Private Perpetual Preferred Units. Tom?

Thomas N. Keltner, Jr.:

· In closing let me mention a few additional items.

· None of the directors, officers, or affiliates of our general partner, including members of the Malkin family, will tender any of their OP Units in the exchange offer.

· Though we believe the new preferred units may be an attractive option for those OP unit holders seeking a higher dividend, ultimately you must make your own decision whether to participate, based on your individual investment objectives. We are not making any recommendation as to whether or not you should make this exchange. All OP unit holders should read the materials carefully and consult with their financial advisor before deciding whether participation in the offer is right for them.

· As noted in our recent SEC filing, on May 16, 2014, ESRT exercised its option to acquire the ground lease and operating lease of 112 West 34^th Street and the ground lease of 1400 Broadway at the price previously set by the appraisal process in accordance with option agreements. We expect a closing within 90 days of that exercise date.

Anthony E. Malkin:

· We are pleased to be able to bring this opportunity to unitholders and hope this call has been helpful. Should you have additional questions regarding the offer, please call MacKenzie Partners, which is serving as our information agent in connection with the offer. They may be reached toll free at 1-888-410-7850. You can send a question by e-mail to us at ppp@empirestaterealtytrust.com. You can get assistance if you need additional copies of the documents, or require assistance in completing the related forms.

· Thank you again for calling in.

Brad Cohen:

· This concludes today’s conference call. The call has been recorded and will be available for replay on ESRT’s investor website at www.empirestaterealtytrust.com in the Investor Relations section.