-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CcQdl6zjlKdIuU4So0Q9hzezC0NUs7W8sG7G+v1FDX57Rkj27scu3lj/peQpZ8T0
 fJKz8TN8GAhkMImEZrX0wg==

<SEC-DOCUMENT>0001342361-07-000001.txt : 20070306
<SEC-HEADER>0001342361-07-000001.hdr.sgml : 20070306
<ACCEPTANCE-DATETIME>20070306162724
ACCESSION NUMBER:		0001342361-07-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070305
FILED AS OF DATE:		20070306
DATE AS OF CHANGE:		20070306

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DEMERITT JOHN G
		CENTRAL INDEX KEY:			0001015061

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32470
		FILM NUMBER:		07675157

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		781-557-1300

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

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 PL
		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
</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>2007-03-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001015061</rptOwnerCik>
            <rptOwnerName>DEMERITT JOHN G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>401 EDGEWATER PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>STE. 200</rptOwnerStreet2>
            <rptOwnerCity>WAKEFIELD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01880</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-03-05</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2007-03-05</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.6</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Comprised of 10,000 shares held by Mr. Demeritt individually and 4,000 shares held by Mr. Demeritt in an IRA account for his benefit.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>John G. Demeritt</signatureName>
        <signatureDate>2007-03-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----