Exhibit 21.1
HRPT PROPERTIES TRUST
SUBSIDIARIES OF THE REGISTRANT
1600 Market Street Property Trust — (Maryland)
1735 Market Street Properties Trust — (Maryland)
4 Maguire Road Realty Trust (Nominee Trust) — (Massachusetts)
47 Harvard Street Real Estate Trust (Nominee Trust) — (Massachusetts)
ALPHA BT LLC — (Maryland)
Blue Dog Properties Trust — (Maryland)
Bridgepoint Property Trust — (Maryland)
Candler Associates, L.L.C. — (Maryland)
Candler Property Trust — (Maryland)
Causeway Holdings, Inc. — (Massachusetts)
Cedars LA LLC — (Delaware)
First Associates LLC — (Maryland)
Fourth and Roma Property Trust — (Maryland)
Franklin Plaza Property Trust — (Maryland)
HRP Nom L.P. — (Delaware)
HRP Nom 2 L.P. — (Delaware)
Hawaii 2x5 0 Properties Trust — (Maryland)
Hawaii Metamorphosis LLC — (Maryland)
Hawaii MMGD LLC — (Maryland)
Hawaii Phoenix Properties LLC — (Maryland)
Hawaii Soupson LLC — (Maryland)
Health and Retirement Properties International, Inc. — (Delaware)
Herald Square LLC — (Delaware)
HH HUB Properties LLC — (Delaware)
Higgins Properties LLC — (Maryland)
HRP Nom Inc. — (Delaware)
HRP Nom L.L.C. — (Delaware)
HRP Nom 2 Inc. — (Delaware)
HRP Nom 2 L.L.C. — (Delaware)
HRP GP, LLC — (Delaware)
HRPT Medical Buildings Realty Trust (Nominee Trust) — (Massachusetts)
HRPT Memphis LLC — (Delaware)
HRPT TRS, Inc. — (Delaware)
Hub Acquisition Trust — (Maryland)
Hub Albuquerque 25 LLC — (Maryland)
Hub BD Mixed Sec. Properties, L.P. — (Delaware)
Hub Corporate Crossing, LLC — (Delaware)
Hub Corporate Crossing Properties Trust — (Maryland)
Hub Highridge Properties Trust — (Maryland)
Hub Highridge, LLC — (Delaware)
Hub LA Limited Partnership (98%) — (Delaware)
Hub LA Properties Trust — (Maryland)
Hub MA Realty Trust (Nominee Trust) — (Massachusetts)
Hub Management, Inc. — (Delaware)
Hub Mid-West LLC — (Maryland)
Hub Properties GA LLC — (Maryland)
Hub Properties Trust — (Maryland)
Hub Realty Buffalo, Inc. — (Delaware)
Hub Realty College Park I, LLC — (Maryland)
Hub Realty College Park, Inc. — (Delaware)
Hub Realty Funding, Inc. — (Delaware)
Hub Realty Golden, Inc. — (Delaware)
Hub Realty Kansas City, Inc. — (Delaware)
Hub Realty Richland, Inc. — (Delaware)
Hub RI Properties Trust — (Maryland)
Hub Woodmont Investment Trust — (Maryland)
Exhibit 21.1
HRPT PROPERTIES TRUST
SUBSIDIARIES OF THE REGISTRANT
HUB Woodmont Limited Liability Company (99%) — (Delaware)
Indemnity Collection Corporation — (Delaware)
Indiana Avenue LLC — (Delaware)
Lakewood Property Trust — (Maryland)
LTMAC Properties LLC — (Maryland)
Masters Properties LLC — (Maryland)
MOB Realty Trust (Nominee Trust) — (Massachusetts)
Nine Penn Center Associates, L.P. — (Pennsylvania)
Nine Penn Center Properties Trust — (Maryland)
Orville Properties LLC — (Maryland)
Park San Antonio Properties Trust — (Maryland)
Putnam Place Realty Trust (Nominee Trust) — (Massachusetts)
Quarry Lake Properties Trust — (Maryland)
Research Park Properties Trust — (Maryland)
RFRI Properties LLC — (Maryland)
Ridge Lake Properties LLC — (Delaware)
Robin 1 Properties LLC — (Maryland)
Rosedale Corporate Plaza Condominium, Inc. — (Minnesota)
Rosedale Properties Limited Liability Company — (Delaware)
Rosedale Properties Trust — (Maryland)
Rosedale Properties, Inc. — (Delaware)
SP Holding Property Trust — (Maryland)
Tanaka Properties LLC — (Maryland)
TedCal Properties LLC — (Maryland)
TSM Properties LLC — (Maryland)
University Avenue Real Estate Trust (Nominee Trust) — (Massachusetts)
Z&A Properties LLC — (Maryland)
