<SEC-DOCUMENT>0001104659-15-049285-index.html : 20150701
<SEC-HEADER>0001104659-15-049285.hdr.sgml : 20150701
<ACCEPTANCE-DATETIME>20150701160210
ACCESSION NUMBER:		0001104659-15-049285
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		26
CONFORMED PERIOD OF REPORT:	20150629
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20150701
DATE AS OF CHANGE:		20150701

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CORPORATE OFFICE PROPERTIES TRUST
		CENTRAL INDEX KEY:			0000860546
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				232947217
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14023
		FILM NUMBER:		15965047

	BUSINESS ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
		BUSINESS PHONE:		4432855400

	MAIL ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORPORATE OFFICE PROPERTIES TRUST INC
		DATE OF NAME CHANGE:	19980105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE INVESTMENTS INC
		DATE OF NAME CHANGE:	19930328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE REIT INC
		DATE OF NAME CHANGE:	19600201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Corporate Office Properties, L.P.
		CENTRAL INDEX KEY:			0001577966
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				232930022
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-189188
		FILM NUMBER:		15965048

	BUSINESS ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
		BUSINESS PHONE:		443-285-5400

	MAIL ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a15-14994_18k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a15-14994_18k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>a15-14994_1ex99d1.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: a15-14994_1ex99d1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g149941mmi001.gif <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g149941mmi001.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g149941mmi002.gif <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g149941mmi002.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g149941mmi003.gif <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g149941mmi003.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g149941mmi004.gif <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g149941mmi004.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g149941mmi005.gif <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g149941mmi005.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g149941mmi006.gif <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g149941mmi006.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g149941mmi007.gif <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g149941mmi007.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>g149941mmi008.gif <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: g149941mmi008.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>g149941mmi009.gif <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: g149941mmi009.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>g149941mmi010.gif <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: g149941mmi010.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>g149941mmi011.gif <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: g149941mmi011.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>g149941mmi012.gif <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: g149941mmi012.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>g149941mmi013.gif <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: g149941mmi013.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>g149941mmi014.gif <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: g149941mmi014.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>g149941mmi015.gif <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: g149941mmi015.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>g149941mmi016.gif <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: g149941mmi016.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>g149941mmi017.gif <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: g149941mmi017.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>g149941mmi018.gif <DESCRIPTION>GRAPHIC <TEXT> Document 20 - file: g149941mmi018.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>g149941mmi019.gif <DESCRIPTION>GRAPHIC <TEXT> Document 21 - file: g149941mmi019.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>g149941mmi020.gif <DESCRIPTION>GRAPHIC <TEXT> Document 22 - file: g149941mmi020.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>g149941mmi021.gif <DESCRIPTION>GRAPHIC <TEXT> Document 23 - file: g149941mmi021.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>g149941mmi022.gif <DESCRIPTION>GRAPHIC <TEXT> Document 24 - file: g149941mmi022.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>g149941mmi023.gif <DESCRIPTION>GRAPHIC <TEXT> Document 25 - file: g149941mmi023.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>g149941mmi024.gif <DESCRIPTION>GRAPHIC <TEXT> Document 26 - file: g149941mmi024.gif
</DOCUMENT> </SEC-DOCUMENT>