    <SEC-DOCUMENT>0001656423-19-000009-index.html : 20190501
    <SEC-HEADER>0001656423-19-000009.hdr.sgml : 20190501
    <ACCEPTANCE-DATETIME>20190430174234
    ACCESSION NUMBER:		0001656423-19-000009
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		12
    CONFORMED PERIOD OF REPORT:	20190430
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20190501
    DATE AS OF CHANGE:		20190430

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BOSTON PROPERTIES INC
    		CENTRAL INDEX KEY:			0001037540
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				042473675
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13087
    		FILM NUMBER:		19783655

    	BUSINESS ADDRESS:
    		STREET 1:		800 BOYLSTON STREET
    		STREET 2:		SUITE 1900
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02199
    		BUSINESS PHONE:		6172363300

    	MAIL ADDRESS:
    		STREET 1:		800 BOYLSTON STREET
    		STREET 2:		SUITE 1900
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02199

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BOSTON PROPERTIES LTD PARTNERSHIP
    		CENTRAL INDEX KEY:			0001043121
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-50209
    		FILM NUMBER:		19783654

    	BUSINESS ADDRESS:
    		STREET 1:		800 BOYLSTON STREET
    		STREET 2:		SUITE 1900
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02199
    		BUSINESS PHONE:		6172363300

    	MAIL ADDRESS:
    		STREET 1:		800 BOYLSTON STREET
    		STREET 2:		SUITE 1900
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02199
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>bxpandbplpform8-k2019331.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: bxpandbplpform8-k2019331.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>q12019supplementaldocx.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: q12019supplementaldocx.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>q12019pressreleasedocx.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: q12019pressreleasedocx.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>a190320325mainoveralllra01.jpg
    <TEXT>
    Document 4 - file: a190320325mainoveralllra01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>bxplogohorizontalcolorrgba12.jpg
    <TEXT>
    Document 5 - file: bxplogohorizontalcolorrgba12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>bxplogosupplementalcovera03.jpg
    <TEXT>
    Document 6 - file: bxplogosupplementalcovera03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>bxplogosupplementalheadera03.jpg
    <TEXT>
    Document 7 - file: bxplogosupplementalheadera03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>chart-3e0af4e0d9a552c9872.jpg
    <TEXT>
    Document 8 - file: chart-3e0af4e0d9a552c9872.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>chart-7f1f0eec259f5b4fb43.jpg
    <TEXT>
    Document 9 - file: chart-7f1f0eec259f5b4fb43.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>chart-8c8e6f038ba95989810.jpg
    <TEXT>
    Document 10 - file: chart-8c8e6f038ba95989810.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>chart-8eb89e2acf735b6ca5b.jpg
    <TEXT>
    Document 11 - file: chart-8eb89e2acf735b6ca5b.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>chart-bd5074ccb6565f3e918.jpg
    <TEXT>
    Document 12 - file: chart-bd5074ccb6565f3e918.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>