EX-21.1 3 copt12312020ex211.htm EX-21.1

|  |  | Exhibit 21.1
CORPORATE OFFICE PROPERTIES TRUST |  |  |
SUBSIDIARIES OF REGISTRANT |  |  |
Alabama |  |  |
COPT Bridge Street Office, LLC |  |  |
Delaware |  |  |
2100 L Holdings, LLC |  |  |
2100 L Subsidiary LLC |  |  |
Advanced Gateway 7500, LLC |  |  |
Advanced Gateway 7600, LLC |  |  |
Advanced Gateway 7700-7800, LLC |  |  |
Advanced Gateway 8600, LLC |  |  |
Airport Square Holdings I, LLC |  |  |
Airport Square Holdings VI and VII, LLC |  |  |
Blue Bell Investment Company, L.P. |  |  |
COPT Acquisitions, Inc. |  |  |
COPT BK Holdco, LLC |  |  |
COPT BK Holdco II, LLC |  |  |
COPT DC-6, LLC |  |  |
COPT Maritime I & II, LLC |  |  |
COPT Stevens Place, LLC |  |  |
Corporate Office Properties Holdings, Inc. |  |  |
Corporate Office Properties, L.P. |  |  |
DC-11 DE, LLC |  |  |
DC-12-14 DE, LLC |  |  |
DC-8-9-10 DE, LLC |  |  |
Delaware Airport IX, LLC |  |  |
Delaware Airport VIII, LLC |  |  |
GI-COPT DC Partnership LLC |  |  |
Great Mills I, L.L.C. |  |  |
Great Mills II, L.L.C. |  |  |
Great Mills III, L.L.C. |  |  |
Great Mills IV, L.L.C. |  |  |
Great Mills V, L.L.C. |  |  |
LW Redstone Company, LLC |  |  |
Powerloft Holdings, LLC |  |  |
Profit Interest Holding LLC |  |  |
Redstone Gateway 100, LLC |  |  |
Redstone Gateway 1000, LLC |  |  |
Redstone Gateway 1100, LLC |  |  |
Redstone Gateway 1200, LLC |  |  |
Redstone Gateway 2100, LLC |  |  |
Redstone Gateway 2400, LLC |  |  |
Redstone Gateway 4000, LLC |  |  |
Redstone Gateway 4100, LLC |  |  |
Redstone Gateway 6000, LLC |  |  |
Redstone Gateway 6500, LLC |  |  |
Redstone Gateway 7100, LLC |  |  |
Redstone Gateway 7200, LLC |  |  |
Redstone Gateway 8000, LLC |  |  |
Redstone Gateway 8800, LLC |  |  |
Stevens Investors, LLC |  |  |
Stevens School Holdings, LLC |  |  |

Maryland |  |  |
100 Charm City, LLC |  |  |
100 LS Borrower, LLC |  |  |
1460 Dorsey Road, LLC |  |  |
1550 Nursery, LLC |  |  |
250 Charm City, LLC |  |  |
2500 Riva Trust |  |  |
30 Charm City, LLC |  |  |
30 LS Borrower, LLC |  |  |
45310 Abell House, LLC |  |  |
6711 Gateway, LLC |  |  |
6721 Gateway, LLC |  |  |
6731 Gateway, LLC |  |  |
6741 Gateway, LLC |  |  |
7000 Honeys, LLC |  |  |
7005 Columbia Gateway, LLC |  |  |
7015 Albert Einstein Drive, L.L.C. |  |  |
7200 Riverwood, LLC |  |  |
7205 Riverwood, LLC |  |  |
7318 Parkway Drive Enterprises, LLC |  |  |
7740 Milestone, LLC |  |  |
7760 Milestone Parkway, LLC |  |  |
7780 Milestone Parkway, LLC |  |  |
7874 Milestone Parkway, LLC |  |  |
7876 Milestone Parkway, LLC |  |  |
7878 Milestone Parkway, LLC |  |  |
7880 Milestone Parkway, LLC |  |  |
Airport Square IV, LLC |  |  |
Airport Square Partners, LLC |  |  |
Airport Square Storms, LLC |  |  |
Airport Square V, LLC |  |  |
Airport Square XI, LLC |  |  |
Airport Square XIII, LLC |  |  |
Airport Square XXII, LLC |  |  |
Airport Square, LLC |  |  |
AP#5 Lot A, LLC |  |  |
AP#5 Lot B, LLC |  |  |
AP#5 Lot C, LLC |  |  |
Arundel Preserve #5, LLC |  |  |
Clarks Hundred II, LLC |  |  |
Clarks Hundred, LLC |  |  |
Colgatedrive Associates, LLC |  |  |
Columbia Equity Finance, LLC |  |  |
Columbia Gateway S-28, L.L.C. |  |  |
COMI Investments, LLC |  |  |
Commons Office 6-B, LLC |  |  |
Commons Office Research, LLC |  |  |
COPT Aberdeen, LLC |  |  |
COPT AP 9, LLC |  |  |
COPT Arundel Preserve, LLC |  |  |
COPT Baltimore County I, LLC |  |  |
COPT Baltimore County II, LLC |  |  |
COPT Brock Bridge, LLC |  |  |
COPT CC 1600, LLC |  |  |

COPT CC Bulkhead, LLC |  |  |
COPT CC D1, LLC |  |  |
COPT CC Holding, LLC |  |  |
COPT CC Parking, LLC |  |  |
COPT CC Tower, LLC |  |  |
COPT CCW I, LLC |  |  |
COPT CCW II, LLC |  |  |
COPT CCW III, LLC |  |  |
COPT Data Management, LLC |  |  |
COPT Development & Construction Services, LLC |  |  |
COPT Frederick, LLC |  |  |
COPT Gate 63, LLC |  |  |
COPT Gate 6700-6708-6724, LLC |  |  |
COPT General, LLC |  |  |
COPT Harbour's Edge, LLC |  |  |
COPT Huntsville, LLC |  |  |
COPT Northgate A, LLC |  |  |
COPT Northgate B, LLC |  |  |
COPT Northgate C, LLC |  |  |
COPT Northgate D, LLC |  |  |
COPT Northgate H, LLC |  |  |
COPT Northgate I, LLC |  |  |
COPT Powerhouse, LLC |  |  |
COPT Pres Investment, LLC |  |  |
COPT Property Management Services, LLC |  |  |
COPT Renovation, LLC |  |  |
COPT Riverwood, LLC |  |  |
COPT T-11, LLC |  |  |
COPT Virtru, LLC |  |  |
COPT-Kirk AP#5, LLC |  |  |
Corporate Development Services, LLC |  |  |
Corporate Gatespring II, LLC |  |  |
Corporate Gatespring, LLC |  |  |
Corporate Office Management, Inc. |  |  |
Corporate Office Services, LLC |  |  |
Enterprise Campus Developer, LLC |  |  |
Fifth Exploration, L.L.C. |  |  |
Fourth Exploration, L.L.C. |  |  |
Gateway 44, LLC |  |  |
Gateway 67, LLC |  |  |
Gateway 70, LLC |  |  |
Gateway Crossing 95, LLC |  |  |
Honeyland 108, LLC |  |  |
Huntsville Holdings, LLC |  |  |
Jolly COPT I, LLC |  |  |
Jolly COPT II, LLC |  |  |
M Square 4600, LLC |  |  |
M Square 5801, LLC |  |  |
M Square 5825, LLC |  |  |
M Square 5850, LLC |  |  |
M Square Associates, LLC |  |  |
M Square Park, LLC |  |  |
Maritime Holdings, LLC |  |  |
MOR Forbes, LLC |  |  |
NBP 131, LLC |  |  |

NBP 132, LLC |  |  |
NBP 133, LLC |  |  |
NBP 134, LLC |  |  |
NBP 135, LLC |  |  |
NBP 140, LLC |  |  |
NBP 141, LLC |  |  |
NBP 191, LLC |  |  |
NBP 201, LLC |  |  |
NBP 211, LLC |  |  |
NBP 220, LLC |  |  |
NBP 221, LLC |  |  |
NBP 300 Restaurant, LLC |  |  |
NBP 300, LLC |  |  |
NBP 302, LLC |  |  |
NBP 304, LLC |  |  |
NBP 306, LLC |  |  |
NBP 308, LLC |  |  |
NBP 310, LLC |  |  |
NBP 312, LLC |  |  |
NBP 314, LLC |  |  |
NBP 316, LLC |  |  |
NBP 318, LLC |  |  |
NBP 320, LLC |  |  |
NBP 322, LLC |  |  |
NBP 324, LLC |  |  |
NBP 410, LLC |  |  |
NBP 420, LLC |  |  |
NBP 430, LLC |  |  |
NBP 520, LLC |  |  |
NBP 540, LLC |  |  |
NBP Huff & Puff, LLC |  |  |
NBP Lot 3-A, LLC |  |  |
NBP One, LLC |  |  |
NBP Retail, LLC |  |  |
Nottingham Ridge Holding Corp. |  |  |
One Sellner Road, LLC |  |  |
Park Circle Equities, LLC |  |  |
Pecan Court L.L.C. |  |  |
Red Cedar Building, LLC |  |  |
RG 2100 Restaurant, LLC |  |  |
RIVA Trustee, LLC |  |  |
Riverwood Business Center Equity Affiliates, LLC |  |  |
Third Exploration L.L.C. |  |  |
Texas |  |  |
C Texas SG, LLC |  |  |
COPT 8000 Potranco, L.P. |  |  |
COPT 8030 Potranco, L.P. |  |  |
COPT 8100 Potranco, L.P. |  |  |
COPT SA Technology Center, L.P. |  |  |
COPT San Antonio , L.P. |  |  |
COPT San Antonio General, LLC |  |  |
COPT San Antonio II, L.P. |  |  |
COPT Westpointe 3A, L.P. |  |  |
COPT Westpointe 4, L.P. |  |  |

Virginia |  |  |
Beaumeade LC Phase III, LLC |  |  |
Cabin Branch Creek, LLC |  |  |
COPT Connect, LLC |  |  |
COPT Dahlgren I, LLC |  |  |
COPT Dahlgren II, LLC |  |  |
COPT Dahlgren IV, LLC |  |  |
COPT Dahlgren Land, LLC |  |  |
COPT Dahlgren, LLC |  |  |
COPT DC Innovation, LLC |  |  |
COPT DC Partner, LLC |  |  |
COPT DC-21, LLC |  |  |
COPT Greens I, LLC |  |  |
COPT Greens II, LLC |  |  |
COPT Greens III, LLC |  |  |
COPT McLearen, LLC |  |  |
COPT Metro Place II, LLC |  |  |
COPT Park Meadow, LLC |  |  |
COPT Ridgeview I, LLC |  |  |
COPT Ridgeview II & III, LLC |  |  |
COPT Stonecroft, LLC |  |  |
COPT Sunrise, LLC |  |  |
DC-12-14, LLC |  |  |
Maries Tech Park, LLC |  |  |
Parkstone Tech Park, LLC |  |  |
Patriot Ridge 7770, LLC |  |  |
Patriot Ridge Commons, LLC |  |  |
Patriot Ridge Holdings, LLC |  |  |
Patriot Ridge I, LLC |  |  |
Patriot Ridge II, LLC |  |  |
South Point Phase II, LLC |  |  |
TRC Pinnacle Towers, L.L.C. |  |  |
Waterside I, LLC |  |  |