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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001209191-10-032387.txt : 20100604
<SEC-HEADER>0001209191-10-032387.hdr.sgml : 20100604
<ACCEPTANCE-DATETIME>20100604163919
ACCESSION NUMBER:		0001209191-10-032387
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100602
FILED AS OF DATE:		20100604
DATE AS OF CHANGE:		20100604

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fowler Wyche
		CENTRAL INDEX KEY:			0001301268

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09106
		FILM NUMBER:		10879379

	MAIL ADDRESS:	
		STREET 1:		401 PLYMOUTH ROAD, SUITE 500
		CITY:			PLYMOUTH MEETING
		STATE:			PA
		ZIP:			19462

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>2010-06-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001301268</rptOwnerCik>
            <rptOwnerName>Fowler Wyche</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>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares of Beneficial Interest</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2010-06-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3451</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.59</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>32764</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares of Beneficial Interest</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <transactionDate>
                <value>2010-06-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3020</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.59</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>36128</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares reflect the $40,000 annual Trustee share award the number of shares of which is  calculated based upon a closing price on 06/02/2010 of $11.59.  Shares will vest ratably over three years: 1/3 on June 2, 2011; 1/3 on June 2, 2012 and 1/3 on June 2, 2013.</footnote>
        <footnote id="F2">The shares acquired reflects the acquisition of shares under the Brandywine Realty Trust Executive Deferred Compensation Plan (the &quot;Plan&quot;) pursuant to an earlier election by the reporting person to defer all of his $35,000 annual Board retainer fee for 2010 into the Plan and invest all of the amount deferred into Company shares.  The reporting person's account in the plan was credited with the shares based upon the closing price per share of the common shares on 06/02/2010 ($11.59).</footnote>
        <footnote id="F3">Includes 344 additional shares acquired under the Company's Dividend Reinvestment Plan (DRIP) since the Reporting Person's last Section 16 filing and on the following dates at the following prices:  95.503863 shares purchased on July 22, 2009 at $7.2996 per share; 68.326098 shares purchased on October 22, 2009 at $10.342900 per share; 93.409029 shares purchased on January 25, 2010 at $11.458100 per share; and 87.464709 shares purchased on April 22, 2010 at $12.397000 per share.  The information in this report is as of 6-2-2010.  The DRIP shares are exempt under Section 16.  The DRIP Plan provides for the purchase of fractional shares.  The number reported in the ending balance of shares held is the nearest whole number.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brad A. Molotsky, as Attorney-in-Fact for Wyche Fowler</signatureName>
        <signatureDate>2010-06-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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