-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001444838-09-000041.txt : 20090915
<SEC-HEADER>0001444838-09-000041.hdr.sgml : 20090915
<ACCEPTANCE-DATETIME>20090915171743
ACCESSION NUMBER:		0001444838-09-000041
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090911
FILED AS OF DATE:		20090915
DATE AS OF CHANGE:		20090915

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CARROLL PATRICK
		CENTRAL INDEX KEY:			0001204627

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12386
		FILM NUMBER:		091070502

	BUSINESS ADDRESS:	
		STREET 1:		PAUL, HASTINGS, JANOFSKY & WALKER LLP
		STREET 2:		75 EAST 55TH STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LEXINGTON REALTY TRUST
		CENTRAL INDEX KEY:			0000910108
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				133717318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE PENN PLAZA
		STREET 2:		SUITE 4015
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10119
		BUSINESS PHONE:		(212) 692-7200

	MAIL ADDRESS:	
		STREET 1:		ONE PENN PLAZA
		STREET 2:		SUITE 4015
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LEXINGTON CORPORATE PROPERTIES TRUST
		DATE OF NAME CHANGE:	19980625

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LEXINGTON CORPORATE PROPERTIES INC
		DATE OF NAME CHANGE:	19930816
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-09-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000910108</issuerCik>
        <issuerName>LEXINGTON REALTY TRUST</issuerName>
        <issuerTradingSymbol>LXP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001204627</rptOwnerCik>
            <rptOwnerName>CARROLL PATRICK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2009-09-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>32453</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.05</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>201917</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Wife</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>143094</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $5.05 to $5.15, inclusive.  The reporting person undertakes to provide Lexington Realty Trust, any security holder of Lexington Realty Trust, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price with in the range set forth in this footnote.</footnote>
        <footnote id="F2">Includes approximately 18,367 shares received in connection with partial share dividends.</footnote>
        <footnote id="F3">Includes approximately 12,320 shares received in connection with partial share dividends and 82,830 shares transferred from Mr. Carroll to his wife.</footnote>
        <footnote id="F4">Mr. Carroll disclaims beneficial ownership of shares held by his wife except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Patrick Carroll, by Joseph S. Bonventre, Attorney-in-fact</signatureName>
        <signatureDate>2009-09-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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