<SEC-DOCUMENT>0000920522-17-000018.txt : 20170302
<SEC-HEADER>0000920522-17-000018.hdr.sgml : 20170302
<ACCEPTANCE-DATETIME>20170302130229
ACCESSION NUMBER:		0000920522-17-000018
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160809
FILED AS OF DATE:		20170302
DATE AS OF CHANGE:		20170302

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESSEX PROPERTY TRUST INC
		CENTRAL INDEX KEY:			0000920522
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				770369576
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1100 PARK PLACE
		STREET 2:		SUITE 200
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94403
		BUSINESS PHONE:		6506557800

	MAIL ADDRESS:	
		STREET 1:		1100 PARK PLACE
		STREET 2:		SUITE 200
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94403

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GUERICKE KEITH R
		CENTRAL INDEX KEY:			0001198329

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13106
		FILM NUMBER:		17657837

	MAIL ADDRESS:	
		STREET 1:		C/O ESSEX PROPERTY TRUST
		STREET 2:		925 EAST MEADOW DRIVE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94303
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>wf-form4a_148847773504155.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2016-08-09</periodOfReport>

    <dateOfOriginalSubmission>2016-08-11</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000920522</issuerCik>
        <issuerName>ESSEX PROPERTY TRUST INC</issuerName>
        <issuerTradingSymbol>ESS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198329</rptOwnerCik>
            <rptOwnerName>GUERICKE KEITH R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ESSEX PROPERTY TRUST</rptOwnerStreet1>
            <rptOwnerStreet2>1100 PARK PLACE, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>SAN MATEO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-08-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>107.21</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30533</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-08-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>233.49</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25533</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person's Form 4, filed on August 11, 2016, inadvertently reported that 63,750 shares were beneficially owned following the reported transaction, whereas 30,533 was the correct number of shares that were beneficially owned following the reported transaction.</footnote>
        <footnote id="F2">Prior to the date (August 11, 2016) of the reporting person's last ownership report, Mr. Guericke transferred 33,217 shares of ESS common stock to his ex-wife pursuant to a domestic relations order. The reporting person no longer reports as beneficially owned any such securities owned by his ex-wife.</footnote>
        <footnote id="F3">The reporting person's Form 4, filed on August 11, 2016, inadvertently reported that 58,570 shares were beneficially owned following the reported transaction, whereas 25,533 was the correct number of shares that were beneficially owned following the reported transaction.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John Farias, Attorney in Fact</signatureName>
        <signatureDate>2017-03-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
