Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Santee David S
 2. Date of Event Requiring Statement (Month/Day/Year)
01/01/2007		 3. Issuer Name and Ticker or Trading Symbol
EQUITY RESIDENTIAL [EQR]
(Last)
(First)
(Middle)
DAVID S. SANTEE, TWO NORTH RIVERSIDE PLAZA		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP-Operations
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CHICAGO, IL 60606		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Shares of Beneficial Interest 16,321 (1)
D
 
Common Shares of Beneficial Interest 9,792.5231 (2)
I
SERP Account

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy)   (3) 01/27/2014 Common Shares of Beneficial Interest 7,107 $ 29.25 D  
Non-Qualified Stock Option (right to buy)   (4) 02/03/2015 Common Shares of Beneficial Interest 16,381 $ 31.76 D  
Non-Qualified Stock Option (right to buy)   (5) 02/03/2016 Common Shares of Beneficial Interest 17,772 $ 42.8 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Santee David S
DAVID S. SANTEE
TWO NORTH RIVERSIDE PLAZA
CHICAGO, IL 60606		       EVP-Operations  

Signatures

s/Yasmina Duwe, Attorney-in-fact 01/03/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(4) The share options reported on this line become exercisable as follows: 8,190 on February 3, 2007 and 8,191 on February 3, 2008.
(2) Shares reported herein are owned by the AST Trust Company, as Trustee of the Equity Residential Supplemental Retirement Plan for the benefit of the reporting person and were acquired through Equity Residential's Employee Share Purchase Plan.
(5) The share options reported on this line become exercisable in three annual installments as follows: 5,924 on February 3, 2007; 5,924 on February 3, 2008; and 5,924 on February 3, 2009.
(3) The share options reported on this line become exercisable on January 27, 2007.
(1) Shares reported on this line are owned directly and some are subject to vesting.

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