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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 3Ybw5xonyMWTumdvkXqPdQ==

<SEC-DOCUMENT>0001395404-08-000001.txt : 20080225
<SEC-HEADER>0001395404-08-000001.hdr.sgml : 20080225
<ACCEPTANCE-DATETIME>20080225111028
ACCESSION NUMBER:		0001395404-08-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080222
FILED AS OF DATE:		20080225
DATE AS OF CHANGE:		20080225

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FRANKLIN STREET PROPERTIES CORP /MA/
		CENTRAL INDEX KEY:			0001031316
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				042724223
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		STE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880
		BUSINESS PHONE:		7815571300

	MAIL ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		STE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FRANKLIN STREET PARTNERS LP
		DATE OF NAME CHANGE:	20010301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FOURNIER BARBARA J
		CENTRAL INDEX KEY:			0001244620

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32470
		FILM NUMBER:		08638547

	BUSINESS ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		SUITE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880
		BUSINESS PHONE:		7815571300

	MAIL ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		SUITE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880

	FORMER NAME:	
		FORMER CONFORMED NAME:	CORINHA BARBARA J
		DATE OF NAME CHANGE:	20030619
</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>2008-02-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001031316</issuerCik>
        <issuerName>FRANKLIN STREET PROPERTIES CORP /MA/</issuerName>
        <issuerTradingSymbol>FSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001244620</rptOwnerCik>
            <rptOwnerName>FOURNIER BARBARA J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>401 EDGEWATER PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>WAKEFIELD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01880</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, COO, Treasurer, Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-02-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>580</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.65</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31075</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-02-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>495</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.65</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31075</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>owned by spouse</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Comprised of 28,215 shares owned by Ms. Fournier and her spouse jointly, 1505 shares owned by Ms. Fournier in an IRA account for her benefit and 1355 shares owned by Ms. Fournier's spouse in an IRA for his benefit.  Ms. Fournier disclaims beneficial ownership of the 1355 shares owned by her spouse in an IRA account for his benefit.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Barbara J. Fournier</signatureName>
        <signatureDate>2008-02-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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