    <SEC-DOCUMENT>0000104894-18-000012-index.html : 20180215
    <SEC-HEADER>0000104894-18-000012.hdr.sgml : 20180215
    <ACCEPTANCE-DATETIME>20180215164831
    ACCESSION NUMBER:		0000104894-18-000012
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		10
    CONFORMED PERIOD OF REPORT:	20180215
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180215
    DATE AS OF CHANGE:		20180215

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WASHINGTON REAL ESTATE INVESTMENT TRUST
    		CENTRAL INDEX KEY:			0000104894
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				530261100
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-06622
    		FILM NUMBER:		18618303

    	BUSINESS ADDRESS:
    		STREET 1:		1775 EYE STREET, NW
    		STREET 2:		SUITE 1000
    		CITY:			WASHINGTON
    		STATE:			DC
    		ZIP:			20006
    		BUSINESS PHONE:		2027743200

    	MAIL ADDRESS:
    		STREET 1:		1775 EYE STREET, NW
    		STREET 2:		SUITE 1000
    		CITY:			WASHINGTON
    		STATE:			DC
    		ZIP:			20006
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>q42017earningsrelease8-k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: q42017earningsrelease8-k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>q42017earningsrelease.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: q42017earningsrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>q42017supplemental.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: q42017supplemental.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>a4q2017supplementpiechart.jpg
    <TEXT>
    Document 4 - file: a4q2017supplementpiechart.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>picture2.jpg
    <TEXT>
    Document 5 - file: picture2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>q42017suppl_chart-18076.jpg
    <TEXT>
    Document 6 - file: q42017suppl_chart-18076.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>q42017suppl_chart-18459.jpg
    <TEXT>
    Document 7 - file: q42017suppl_chart-18459.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>q42017suppl_chart-18498.jpg
    <TEXT>
    Document 8 - file: q42017suppl_chart-18498.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>washingtonreit300dpia22.jpg
    <TEXT>
    Document 9 - file: washingtonreit300dpia22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>washingtonreit300dpia23.jpg
    <TEXT>
    Document 10 - file: washingtonreit300dpia23.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>