<SEC-DOCUMENT>0001047469-16-012127-index.html : 20160412
<SEC-HEADER>0001047469-16-012127.hdr.sgml : 20160412
<ACCEPTANCE-DATETIME>20160412163839
ACCESSION NUMBER:		0001047469-16-012127
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		11
FILED AS OF DATE:		20160412
DATE AS OF CHANGE:		20160412
EFFECTIVENESS DATE:		20160412

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:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-210714
		FILM NUMBER:		161567606

	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:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-210714-01
		FILM NUMBER:		161567607

	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>S-3ASR
<SEQUENCE>1
<FILENAME>a2228205zs-3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: a2228205zs-3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a2228205zex-5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a2228205zex-5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.2
<SEQUENCE>3
<FILENAME>a2228205zex-5_2.htm
<DESCRIPTION>EX-5.2
<TEXT>
Document 3 - file: a2228205zex-5_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-8.1
<SEQUENCE>4
<FILENAME>a2228205zex-8_1.htm
<DESCRIPTION>EX-8.1
<TEXT>
Document 4 - file: a2228205zex-8_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>5
<FILENAME>a2228205zex-23_1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 5 - file: a2228205zex-23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>6
<FILENAME>a2228205zex-23_2.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 6 - file: a2228205zex-23_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>7
<FILENAME>a2228205zex-25_1.htm
<DESCRIPTION>EX-25.1
<TEXT>
Document 7 - file: a2228205zex-25_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g82002kgi001.jpg
<DESCRIPTION>G82002KGI001.JPG
<TEXT>
Document 8 - file: g82002kgi001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g82002li03i001.gif
<DESCRIPTION>G82002LI03I001.GIF
<TEXT>
Document 9 - file: g82002li03i001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g82002li03i002.gif
<DESCRIPTION>G82002LI03I002.GIF
<TEXT>
Document 10 - file: g82002li03i002.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g82002li03i003.gif
<DESCRIPTION>G82002LI03I003.GIF
<TEXT>
Document 11 - file: g82002li03i003.gif

</DOCUMENT>
</SEC-DOCUMENT>