OFFICE PROPERTIES INCOME TRUST - FORM 10-K - EX-21.1

file	filename
10-K - 10-K - OFFICE PROPERTIES INCOME TRUST	opi-20201231.htm
EX-8.1 - EX-8.1 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex81.htm
EX-23.2 - EX-23.2 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex232.htm
EX-23.1 - EX-23.1 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex231.htm
EX-31.4 - EX-31.4 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex314.htm
EX-31.3 - EX-31.3 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex313.htm
EX-31.1 - EX-31.1 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex311.htm
EX-4.14 - EX-4.14 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex414.htm
EX-31.2 - EX-31.2 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex312.htm
EX-32.1 - EX-32.1 - OFFICE PROPERTIES INCOME TRUST	opi_123120x10kex321.htm

Exhibit 21.1

OFFICE PROPERTIES INCOME TRUST

SUBSIDIARIES OF THE REGISTRANT



Name									State of Formation, Organization or Incorporation
1434 Crossways Boulevard I, LLC									Delaware
1434 Crossways Boulevard II, LLC									Delaware
1441 Crossways Blvd., LLC									Virginia
3300 75th Avenue LLC									Delaware
403 & 405 Glenn Drive Manager, LLC									Virginia
403 & 405 Glenn Drive, LLC									Virginia
ACP East LLC									Maryland
AP Indian Creek, LLC									Delaware
Columbia Holding Associates LLC									Delaware
CRI SIR LLC									Delaware
Crossways Associates LLC									Delaware
Crossways II LLC									Delaware
Crossways Land, LLC									Virginia
First Potomac DC Holdings, LLC									Delaware
First Potomac DC Management LLC									Delaware
First Potomac Management LLC									Delaware
First Snowden LLC									Delaware
FP 11 Dupont Circle Managing Member, LLC									Delaware
FP 11 Dupont Circle, LLC									Delaware
FP 1211 Connecticut Avenue, LLC									Delaware
FP 1401 K, LLC									Delaware
FP 1408 Stephanie Way, LLC									Virginia
FP 1775 Wiehle Avenue, LLC									Virginia
FP 2550 Ellsmere Avenue, LLC									Virginia
FP 3 Flint Hill, LLC									Virginia
FP 440 1st Street, LLC									Delaware
FP 500 First Street REIT GP, LLC									Delaware
FP 500 First Street, LLC									Delaware
FP 535 Independence Parkway, LLC									Virginia
FP 540 Gaither, LLC									Maryland
FP 6310 Hillside Center, LLC									Delaware
FP 6315 Hillside Center, LLC									Delaware
FP 840 First Street, LLC									Delaware


FP Ammendale Commerce Center, LLC									Maryland
FP Atlantic Corporate Park, LLC									Virginia
FP Cloverleaf Investor, LLC									Delaware
FP Cloverleaf, LLC									Maryland
FP CPT 1750 H Street, LLC									Delaware
FP CPT 1750 Holdings, LLC									Delaware
FP Davis Drive Lot 5, LLC									Virginia
FP Gateway 270, LLC									New Jersey
FP Greenbrier Circle, LLC									Virginia
FP Greenbrier Towers, LLC									Virginia
FP Gude Manager, LLC									Delaware
FP Gude, LLC									Maryland
FP Indian Creek, LLC									Delaware
FP Metro Place, LLC									Delaware
FP Patuxent Parkway, LLC									Delaware
FP Redland GP, LLC									Delaware
FP Redland Technology Center LP									Delaware
FP Redland, LLC									Delaware
FP Sterling Park 6, LLC									Virginia
FP Sterling Park 7, LLC									Virginia
FP Sterling Park 8 & 9, LLC									Virginia
FP Sterling Park I, LLC									Virginia
FP Sterling Park Land, LLC									Virginia
GOV Grand Oak Properties Trust									Maryland
GOV Intech LLC									Delaware
GOV Lake Fairfax Inc.									Maryland
GOV Lakewood Properties Trust									Maryland
GOV NEW OPPTY LP									Delaware
GOV NEW OPPTY LP REIT									Maryland
GOV NEW OPPTY REIT									Maryland
GOV Pender Drive Inc.									Maryland
Government Properties Income Trust LLC									Delaware
GPT Properties LLC									Delaware
GPT Properties Trust									Maryland
Greenbrier Holding Associates LLC									Delaware
Greenbrier Land, LLC									Virginia
Greenbrier/Norfolk Holding LLC									Delaware
Greenbrier/Norfolk Investment LLC									Delaware
GTC I Second LLC									Virginia
GTC II First LLC									Delaware
Hanua Street LLC									Delaware


Hawaii Metamorphosis LLC									Maryland
Indian Creek Investors, LLC									Maryland
Kristina Way Investments LLC									Delaware
Kuhela Street LLC									Delaware
Norfolk Commerce Park LLC									Delaware
Norfolk First LLC									Delaware
Norfolk Land, LLC									Virginia
One State Street Square Urban Renewal L.L.C.									New Jersey
OPI Realty Trust (Nominee Trust)									Massachusetts
OPI TRS Inc.									Maryland
Prosperity Metro Plaza of Virginia, LLC									Delaware
Rumsey/Snowden Holding LLC									Delaware
Rumsey/Snowden Investment LLC									Delaware
SC Merger Sub LLC									Maryland
SIR 300 Billerica Inc.									Maryland
SIR Campbell Place Inc.									Maryland
SIR Centennial LLC									Delaware
SIR Charlotte LLC									Delaware
SIR Chicago LLC									Delaware
SIR Colorado Springs LLC									Delaware
SIR Columbus LLC									Delaware
SIR Duluth (Primerica Parkway) LLC									Delaware
SIR Duluth LLC									Delaware
SIR Ewing LLC									Delaware
SIR Fort Mill LLC									Delaware
SIR GP Redwood City LLC									Delaware
SIR GP San Jose (Fortune) LLC									Delaware
SIR GP San Jose (Via Del Oro) LLC									Delaware
SIR GP San Jose LLC									Delaware
SIR GP Santa Clara (Walsh) LLC									Delaware
SIR GP Santa Clara LLC									Delaware
SIR Highway 249 REIT LLC									Delaware
SIR Holdings Corporation									Maryland
SIR Houston (Clay) LLC									Delaware
SIR Irving (Freeport) LLC									Delaware
SIR Johnston LLC									Delaware
SIR Lincolnshire LLC									Delaware
SIR Mezz Philadelphia LLC									Delaware
SIR Miami LLC									Delaware
SIR NE Houston LLC									Delaware
SIR OFC Houston LLC									Delaware


SIR Omaha LLC									Delaware
SIR Operating Partnership LP									Delaware
SIR Parsippany (Jefferson) LLC									Delaware
SIR Philadelphia LLC									Delaware
SIR Phoenix (Dunlap) LLC									Delaware
SIR Plano (3400) LLC									Delaware
SIR Properties REIT LLC									Maryland
SIR Properties Trust									Maryland
SIR Redwood City LP									Delaware
SIR REIT Arlington LLC									Delaware
SIR REIT Houston LLC									Delaware
SIR REIT New Braunfels LLC									Delaware
SIR REIT Plano LLC									Delaware
SIR Roanoke LLC									Delaware
SIR Rocklin (Office) LLC									Delaware
SIR San Antonio (Ridgewood Parkway) LLC									Delaware
SIR San Jose (Fortune) LP									Delaware
SIR San Jose (Via Del Oro) LP									Delaware
SIR San Jose LP									Delaware
SIR Santa Clara (Walsh) LP									Delaware
SIR Santa Clara LP									Delaware
SIR Seattle LLC									Delaware
SIR TIF Philadelphia LLC									Delaware
SIR Westford LLC									Delaware
SIR/Duke JV Duluth LLC									Delaware
Snowden First LLC									Delaware
VEF 500 First REIT L.P.									Delaware

OFFICE PROPERTIES INCOME TRUST - FORM 10-K - EX-21.1 - February 19, 2021