-----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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 gPJ41XVIT+2roauDDALekQ==

<SEC-DOCUMENT>0000931017-07-000026.txt : 20070418
<SEC-HEADER>0000931017-07-000026.hdr.sgml : 20070418
<ACCEPTANCE-DATETIME>20070418150041
ACCESSION NUMBER:		0000931017-07-000026
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070417
FILED AS OF DATE:		20070418
DATE AS OF CHANGE:		20070418

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Broser Clifford
		CENTRAL INDEX KEY:			0001349775

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12386
		FILM NUMBER:		07773264

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		212-894-7012

	MAIL ADDRESS:	
		STREET 1:		C/O VORNADO REALTY TRUST
		STREET 2:		888 SEVENTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

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>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-04-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001349775</rptOwnerCik>
            <rptOwnerName>Broser Clifford</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VORNADO REALTY TRUST</rptOwnerStreet1>
            <rptOwnerStreet2>888 SEVENTH AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-04-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2416</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.0735</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4916</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Reporting Person is a Senior Vice President of Vornado Realty Trust (&quot;Vornado&quot;).  The Reporting Person disclaims beneficial ownership of securities beneficially owned by Vornado, except to the extent of any pecuniary interest he has therein.  Vornado has or will file reports under Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder in respect of 8,149,593.8 units of limited partnership in The Lexington Master Limited Partnership with respect to which Vornado may have beneficial ownership.  The units are redeemable at the holder's option for cash or, at the election of the Issuer, shares of the Issuer's common stock on a 1 for 1 basis.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Cifford Broser, by David J. Heymann, A.I.F.</signatureName>
        <signatureDate>2007-04-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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