<SEC-DOCUMENT>0000860546-24-000004-index.html : 20240208
<SEC-HEADER>0000860546-24-000004.hdr.sgml : 20240208
<ACCEPTANCE-DATETIME>20240208163548
ACCESSION NUMBER:		0000860546-24-000004
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		32
CONFORMED PERIOD OF REPORT:	20240208
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240208
DATE AS OF CHANGE:		20240208

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COPT DEFENSE PROPERTIES
		CENTRAL INDEX KEY:			0000860546
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		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:		24609652

	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
		DATE OF NAME CHANGE:	19980514

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>ofc-20240208.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: ofc-20240208.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>cdp12312023ex991.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: cdp12312023ex991.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>3 <FILENAME>ofc-20240208.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT <TEXT> Document 3 - file: ofc-20240208.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>4 <FILENAME>ofc-20240208_lab.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT <TEXT> Document 4 - file: ofc-20240208_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>5 <FILENAME>ofc-20240208_pre.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT <TEXT> Document 5 - file: ofc-20240208_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>a2023_q4xcoptdefensexcovera.jpg <TEXT> Document 6 - file: a2023_q4xcoptdefensexcovera.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>chart-0f12103f144d4eb0929a.jpg <TEXT> Document 7 - file: chart-0f12103f144d4eb0929a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>chart-2741020e0c2f404a90ca.jpg <TEXT> Document 8 - file: chart-2741020e0c2f404a90ca.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>chart-48967414c5ab4de2b81a.jpg <TEXT> Document 9 - file: chart-48967414c5ab4de2b81a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>chart-4983c68703cd4a4db81a.jpg <TEXT> Document 10 - file: chart-4983c68703cd4a4db81a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>chart-54f5c064c343449ea8ea.jpg <TEXT> Document 11 - file: chart-54f5c064c343449ea8ea.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>chart-a6ab7bd5163b448fb08a.jpg <TEXT> Document 12 - file: chart-a6ab7bd5163b448fb08a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>chart-ac0652520c714909b32a.jpg <TEXT> Document 13 - file: chart-ac0652520c714909b32a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>chart-af161dab347246d2948a.jpg <TEXT> Document 14 - file: chart-af161dab347246d2948a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>chart-c93c464d891c414a9e4a.jpg <TEXT> Document 15 - file: chart-c93c464d891c414a9e4a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>chart-caf92cb1bfab4ddb965a.jpg <TEXT> Document 16 - file: chart-caf92cb1bfab4ddb965a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>chart-f64db430a0114dd0a46a.jpg <TEXT> Document 17 - file: chart-f64db430a0114dd0a46a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>chart-f802338b11554304b91a.jpg <TEXT> Document 18 - file: chart-f802338b11554304b91a.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>erheadera.jpg <TEXT> Document 19 - file: erheadera.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>forimmediatereleasea.jpg <TEXT> Document 20 - file: forimmediatereleasea.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>newcoptlogohorizontaljpga.jpg <TEXT> Document 21 - file: newcoptlogohorizontaljpga.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>supptoc3cdpa.jpg <TEXT> Document 22 - file: supptoc3cdpa.jpg
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>23 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 23 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>25 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 25 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>26 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 26 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>27 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 27 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>29 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 29 - file: FilingSummary.html
Document 29 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>31 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 31 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>32 <FILENAME>0000860546-24-000004-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 32 - file: 0000860546-24-000004-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>33 <FILENAME>ofc-20240208_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 33 - file: ofc-20240208_htm.html
Document 33 - RAW XML: ofc-20240208_htm.xml
</DOCUMENT> </SEC-DOCUMENT>