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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001209191-10-003829.txt : 20100120
<SEC-HEADER>0001209191-10-003829.hdr.sgml : 20100120
<ACCEPTANCE-DATETIME>20100120112422
ACCESSION NUMBER:		0001209191-10-003829
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100115
FILED AS OF DATE:		20100120
DATE AS OF CHANGE:		20100120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mainardi Gabriel J
		CENTRAL INDEX KEY:			0001453187

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09106
		FILM NUMBER:		10535216

	MAIL ADDRESS:	
		STREET 1:		555 E. LANCASTER AVENUE
		STREET 2:		SUITE 100
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087

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:		555 EAST LANCASTER AVE.
		STREET 2:		SUITE 100
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		6103255600

	MAIL ADDRESS:	
		STREET 1:		555 EAST LANCASTER AVE.
		STREET 2:		SUITE 100
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LINPRO SPECIFIED PROPERTIES
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-01-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001453187</rptOwnerCik>
            <rptOwnerName>Mainardi Gabriel J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>555 EAST LANCASTER AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>RADNOR</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19087</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President-Treasurer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares of Beneficial Interest</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10779</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed to solely and voluntarily report the acquisition of 1,160 common shares acquired under the Company's Dividend Reinvestment Plan (DRIP) and the Company's Employee Share Purchase Plan (ESPP). The shares were purchased following the Reporting Person's last Section 16 filing.  The DRIP and the ESPP provide for the purchase of fractional shares.  The number reported which is included in the final balance of shares owned is the nearest whole number.  The details of these acquisitions are reflected in footnote 2 herein.</footnote>
        <footnote id="F2">The DRIP shares were executed at the following prices and amounts:  38.080528 shares acquired on April 17, 2009, at a transaction price of $4.7909 per share; 31.882569 shares acquired on July 17, 2009, at a transaction price of $7.2996 per share; and 27.630548 shares acquired on October 19, 2009, at a transaction price of $10.3429 per share.   The ESPP shares were executed at the following prices and amounts:  464.804938 shares acquired on June 9, 2009, at a transaction price of $4.05 per share; 498.57265 shares acquired on September 2, 2009, at a transaction price of $7.02 per share; and 99.316686 shares acquired on December 7, 2009, at a transaction price of $8.81 per share.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gabriel J. Mainardi</signatureName>
        <signatureDate>2010-01-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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