-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RXpy80GKKRj5DWJgZ6kW9H9rcAXSEaX3NxszybiD0nNvqLarNUDTdn6bwCu9iCJa
 ILT40kpcm3Y33++1BpGOrQ==

<SEC-DOCUMENT>0001028578-03-000002.txt : 20031118
<SEC-HEADER>0001028578-03-000002.hdr.sgml : 20031118
<ACCEPTANCE-DATETIME>20031118152735
ACCESSION NUMBER:		0001028578-03-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031114
FILED AS OF DATE:		20031118

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KNOX BOONE A
		CENTRAL INDEX KEY:			0001028578

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12252
		FILM NUMBER:		031010502

	BUSINESS ADDRESS:	
		STREET 1:		149 MAIN ST
		STREET 2:		PO BOX 26
		CITY:			THOMSON
		STATE:			GA
		ZIP:			30825

	MAIL ADDRESS:	
		STREET 1:		3133 WASHINGTON ROAD
		CITY:			THOMSON
		STATE:			GA
		ZIP:			30824

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EQUITY RESIDENTIAL
		CENTRAL INDEX KEY:			0000906107
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				363877868
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		EQUITY RESIDENTIAL
		STREET 2:		2 N RIVERSIDE PLAZA, STE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129281178

	MAIL ADDRESS:	
		STREET 1:		TWO N RIVERSIDE PLAZA
		STREET 2:		SUITE 450
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EQUITY RESIDENTIAL PROPERTIES TRUST
		DATE OF NAME CHANGE:	19930524
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001028578d20031118f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-11-14</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000906107</issuerCik><issuerName>EQUITY RESIDENTIAL</issuerName>        <issuerTradingSymbol>EQR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001028578</rptOwnerCik><rptOwnerName>KNOX BOONE A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>THE KNOX FOUNDATION / KNOX, LTD.</rptOwnerStreet1><rptOwnerStreet2>3133 WASHINGTON ROAD, N.W.</rptOwnerStreet2><rptOwnerCity>THOMSON</rptOwnerCity><rptOwnerState>GA</rptOwnerState><rptOwnerZipCode>30824</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reporti
ngOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>177806</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>335892</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Folkstone</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeTransaction><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><transact
ionDate><value>2003-11-14</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>652</value></transactionShares><transactionPricePerShare><value>24.74</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>7871</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>SERP Account</value></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securit
yTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>359678</value><footnoteId id="F3"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Knox Foundation</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6774</value><footnoteId id="F4"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>BT Investments</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>848</value><footnoteId id="F5"/></s
haresOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Custodian</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6228</value><footnoteId id="F6"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Spouse</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Shares of Beneficial Interest</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2347898</value><footnoteId id="F7"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></d
irectOrIndirectOwnership><natureOfOwnership><value>Knox, Ltd.</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeHolding><securityTitle><value>Non-Qualified Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>22.9688</value></conversionOrExercisePrice><exerciseDate><value>2000-11-16</value></exerciseDate><expirationDate><value>2010-05-16</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares of Beneficial Interest</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value><footnoteId id="F8"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><deriva
tiveHolding><securityTitle><value>Non-Qualified Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>23.375</value></conversionOrExercisePrice><exerciseDate><value>2001-05-17</value></exerciseDate><expirationDate><value>2009-05-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares of Beneficial Interest</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value><footnoteId id="F8"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Non-Qualified Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>23.55</value></conversionOrExercisePrice><e
xerciseDate><value>2003-08-07</value></exerciseDate><expirationDate><value>2013-02-07</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares of Beneficial Interest</value></underlyingSecurityTitle><underlyingSecurityShares><value>5921</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5921</value><footnoteId id="F9"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Non-Qualified Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>25.865</value></conversionOrExercisePrice><exerciseDate><value>2001-11-15</value></exerciseDate><expirationDate><value>2011-05-15</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares of
 Beneficial Interest</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value><footnoteId id="F10"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Non-Qualified Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>27.2</value></conversionOrExercisePrice><exerciseDate><value>2003-01-17</value></exerciseDate><expirationDate><value>2012-01-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares of Beneficial Interest</value></underlyingSecurityTitle><underlyingSecurityShares><value>5000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><share
sOwnedFollowingTransaction><value>5000</value><footnoteId id="F11"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Shares reported herein are beneficially owned by Folkstone Limited Partnership ("FLP"). Mr. Knox is a general partner of FLP. Mr. Knox disclaims beneficial ownership of the shares owned by FLP except to the extent of his pecuniary interest therein.</footnote><footnote id="F2">Shares reported herein are owned by The Security 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.</footnote><footnote id="F3">Shares reported herein are beneficially owned by the Knox Foundation, a charitable trust. Mr. Knox is trustee of the 
Knox Foundation. Mr. Knox disclaims beneficial ownership of these shares and this report shall not be deemed an admission that Mr. Knox is the beneficial owner of such shares for purposes of Section 16 or for any other purpose.</footnote><footnote id="F4">Shares reported herein are beneficially owned by BT Investments, a Georgia general partnership. Mr. Knox is managing partner of BT Investments. Mr. Knox disclaims beneficial ownership of the shares owned by BT Investments except to the extent of his pecuniary interest therein.</footnote><footnote id="F5">Shares reported herein are beneficially owned by Mr. Knox, not individually, but as custodian for his neice and nephew. Mr. Knox disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that Mr. Knox is the beneficial owner of such shares for purposes of Section 16 or for any other purpose.</footnote><footnote id="F6">Shares reported herein are beneficially owned by Mr. Knox's spouse. Mr. Knox disclaims beneficial own
ership of these shares and this report not be deemed an admission that Mr. Knox is the beneficial owner of such shares for purposes of Section 16 or for any other purpose.</footnote><footnote id="F7">Shares reported herein are beneficially owned by Knox, Ltd.. Mr. Knox is the general partner of Knox, Ltd.. Mr. Knox disclaims beneficial ownership of the shares owned by Knox, Ltd. except to the extent of his pecuniary interest therein.</footnote><footnote id="F8">Share options reported on this line are fully exercisable.</footnote><footnote id="F9">1,974 share options reported herein will become exercisable on February 7, 2004;  1,974 share options will become exercisable on February 7, 2005; and 1,973 share options will become exercisable on February 7, 2006.</footnote><footnote id="F10">6,668 share options reported herein are currently exercisable; and 3,332 share options will become exercisable on May 15, 2003.</footnote><footnote id="F11">3,333 share options reported herein are exercisable; 1,667 will beco
me exercisable on January 17, 2004.</footnote></footnotes><ownerSignature><signatureName>Boone A Knox</signatureName><signatureDate>2003-11-18</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----