Exhibit

Exhibit 21.1

Select Income REIT

Subsidiaries of the Registrant




Name			State of Formation, Organization or Incorporation
Alpha BT LLC			Maryland
CRI SIR LLC			Delaware
Hawaii Metamorphosis LLC			Maryland
Hawaii MMGD LLC			Maryland
Hawaii Phoenix Properties LLC			Maryland
Higgins Properties LLC			Maryland
LTMAC Properties LLC			Maryland
Masters Properties LLC			Maryland
Orville Properties LLC			Maryland
RFRI Properties LLC			Maryland
Robin 1 Properties LLC			Maryland
SC Merger Sub LLC			Maryland
SIR 300 Billerica Inc.			Maryland
SIR Albany LLC			Delaware
SIR Ankeny LLC			Delaware
SIR Asheville LLC			Delaware
SIR Baton Rouge LLC			Delaware
SIR Bemidji LLC			Delaware
SIR Brookfield LLC			Delaware
SIR Burlington LLC			Delaware
SIR Campbell Place Inc.			Maryland
SIR Centennial LLC			Delaware
SIR Charlotte LLC			Delaware
SIR Chesterfield LLC			Delaware
SIR Chicago LLC			Delaware
SIR Chillicothe LLC			Delaware
SIR Colorado Springs LLC			Delaware
SIR Columbus LLC			Delaware
SIR Denver LLC			Delaware
SIR Duluth LLC			Delaware
SIR Duluth (Primerica Parkway) LLC			Delaware
SIR Ewing LLC			Delaware
SIR Fernley LLC			Delaware
SIR Fort Mill LLC			Delaware
SIR Fort Smith 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 Harvey LLC			Delaware
SIR Highway 249 REIT LLC			Delaware



SIR Holdings Corporation			Maryland
SIR Houston (Clay) LLC			Delaware
SIR ID Colorado Springs LLC			Delaware
SIR Irving (Freeport) LLC			Delaware
SIR Johnston LLC			Delaware
SIR Kalamazoo LLC			Delaware
SIR Lafayette LLC			Delaware
SIR Lincoln LLC			Delaware
SIR Lincolnshire LLC			Delaware
SIR MA Realty Trust (Nominee Trust)			Massachusetts
SIR McAlester LLC			Delaware
SIR Mezz Philadelphia LLC			Delaware
SIR Miami LLC			Delaware
SIR Minot LLC			Delaware
SIR Murfreesboro LLC			Delaware
SIR NE Houston LLC			Delaware
SIR North East LLC			Delaware
SIR Obetz LLC			Delaware
SIR OFC Houston LLC			Delaware
SIR Omaha LLC			Delaware
SIR Operating Partnership LP			Delaware
SIR Orange Township LLC			Delaware
SIR Parsippany (Jefferson) LLC			Delaware
SIR Philadelphia LLC			Delaware
SIR Phoenix (Dunlap) LLC			Delaware
SIR Plano (3400) LLC			Delaware
SIR Pocatello LLC			Delaware
SIR Properties REIT LLC			Maryland
SIR Properties Trust			Maryland
SIR Pueblo LLC			Delaware
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 Rock Hill LLC			Delaware
SIR Rockford (American) LLC			Delaware
SIR Rocklin (Office) LLC			Delaware
SIR Salt Lake City 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 South Point LLC			Delaware
SIR Spartanburg LLC			Delaware
SIR TIF Philadelphia LLC			Delaware