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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PxyIXBB/LgPegBEOvzXmDaN0En97CMSr8UWNS9wfrPXGWhE6oXw/4bmt1gHrCn+2
 bmSAd4TEG3gWW2JQUijPHQ==

<SEC-DOCUMENT>0001192899-04-000017.txt : 20040907
<SEC-HEADER>0001192899-04-000017.hdr.sgml : 20040906
<ACCEPTANCE-DATETIME>20040907120907
ACCESSION NUMBER:		0001192899-04-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040902
FILED AS OF DATE:		20040907
DATE AS OF CHANGE:		20040907

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALOIAN D PIKE
		CENTRAL INDEX KEY:			0001192899

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09106
		FILM NUMBER:		041018182

	MAIL ADDRESS:	
		STREET 1:		C/O ROTHSCHILD REALTY INC
		STREET 2:		1251 AVENUEOF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BRANDYWINE REALTY TRUST
		CENTRAL INDEX KEY:			0000790816
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				232413352
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		14 CAMPUS BLVD
		STREET 2:		STE 100
		CITY:			NEWTOWN SQUARE
		STATE:			PA
		ZIP:			19073
		BUSINESS PHONE:		6103255600

	MAIL ADDRESS:	
		STREET 1:		TWO GREENTREE CENTRE
		STREET 2:		SUITE 100
		CITY:			MARLTON
		STATE:			NJ
		ZIP:			08053

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LINPRO SPECIFIED PROPERTIES
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-09-02</periodOfReport>

    <issuer>
        <issuerCik>0000790816</issuerCik>
        <issuerName>BRANDYWINE REALTY TRUST</issuerName>
        <issuerTradingSymbol>BDN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001192899</rptOwnerCik>
            <rptOwnerName>ALOIAN D PIKE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ROTHSCHILD REALTY INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1251 AVENUE OF THE AMERICAS</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Brandywine Realty Trust. Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2004-09-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>29.55</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>293450</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Brandywine Realty Trust Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2004-09-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>29.6191</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>268450</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">$.01 par value per share (&quot;Common Stock&quot;)</footnote>
        <footnote id="F2">Includes 250,000 Common Shares underlying a seven year Warrant that was previously reported which is owned indirectly.  Each Warrant is exercisable at any time up until April 19, 2006.  Does not include options to purchase 6,042 shares of common stock owned directly each of which have been previously disclosed and in relation to which there are no transactions to be reported.</footnote>
        <footnote id="F3">The Reporting Person has been appointed, among others, as a manager of Five Arrows, by Rothschild Realty Investors IIA L.L.C., the same managing member of Five Arrows.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>James E.Quigley 3rd as Attorney-in-Fact for D. Pike Aloian</signatureName>
        <signatureDate>2004-09-07</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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