EXHIBIT 21.1

Health Care Property Investors, Inc.

List of Subsidiaries

Health Care Property Partners, a California general partnership

HCPI/San Antonio Limited Partnership, a Delaware limited partnership

HCPI/Kansas Limited Partnership, a Delaware limited partnership

HCPI/Little Rock, Limited Partnership, a Delaware limited partnership

HCPI/Colorado Springs Limited Partnership, a Delaware limited partnership

Fayetteville Health Associates Limited Partnership, a Delaware limited partnership

Wichita Health Associates Limited Partnership, a Delaware limited partnership

HCPI/Indiana, LLC, a Delaware LLC

HCPI/Utah, LLC, a Delaware LLC

Davis North I, LLC, a Delaware LLC

HCPI/Utah II, LLC, a Delaware LLC

HCPI/Stansbury, LLC, a Delaware LLC

HCPI/Wesley, LLC, a Delaware LLC

Edgewood Assisted Living Center, LLC, a Michigan LLC

Seminole Shores Living Center, LLC, a Michigan LLC

Greenleaf Living Center, LLC, a Michigan LLC

Arborwood Living Center, a Michigan LLC

Perris-Cal Associates, LLC, a California LLC

Ft. Worth-Cal Associates, LLC, a California LLC

Louisiana-Two Associates, LLC, a California LLC

Vista-Cal Associates, LLC, a California LLC

Statesboro Associates, LLC, a California LLC

ARC Richmond Place Real Estate Holdings, LLC, a Delaware LLC

ARC Holland Real Estate Holdings, LLC, a Delaware LLC

ARC Lake Seminole Square Real Estate Holdings, LLC, a Delaware LLC

ARC Sun City Center Real Estate Holdings, LLC, a Delaware LLC

ARC LaBarc Real Estate Holdings, LLC

ARC Brandywine Real Estate Holdings, LLC, a Delaware LLC

HCPI/Tennessee, LLC, a Delaware LLC

Medical Office Buildings of California, LLC, a Delaware LLC

Medical Office Buildings of Utah, LLC, a Delaware LLC

Westminster HCP, LLC, a Delaware LLC

HCP Medical Office Portfolio LLC, a Delaware LLC

Texas HCP, Inc., a Maryland corporation

Texas HCP G.P., Inc., a Delaware corporation

HCPI Mortgage Corp., a Delaware corporation

HCPI Knightdale, Inc., a Delaware corporation

HCPI Trust, a Maryland trust

Health Care Investors III, a California general partnership

AHP of Nevada, Inc., a Nevada corporation

AHP of Washington, Inc. a Washington corporation

Texas HCP Medical G.P., Inc. a Delaware corporation

Texas HCP Holding, L.P., a Delaware limited partnership

Texas HCP Medical Office Buildings, L.P., a Delaware limited partnership

Meadowdome LLC, a Maryland LLC

Birmingham HCP, a Delaware LLC

Jackson HCP, LLC, a Delaware LLC

Tampa HCP, LLC, a Delaware LLC

HCP Medical Office Buildings I, LLC, a Delaware LLC

HCP Medical Office Buildings II, LLC, a Delaware LLC

HCPI/Idaho Falls, LLC, a Delaware LLC

HCP MOP Member, LLC, a Delaware LLC

Medical Office Buildings of Colorado II, LLC, a Delaware LLC

Medical Office Buildings of Nevada Southern Hills, LLC, a Delaware LLC

Medical Office Buildings of Reston, LLC, a Delaware LLC

McKinney HCP GP, LLC, a Delaware LLC

McKinney HCP, L.P., a Delaware limited partnership

Medcap HCPI Development, LLC, a Delaware LLC

Aurora HCP, LLC, a Delaware LLC

Emeritus Realty III, a Delaware LLC

Emeritus Realty V, LLC, a Delaware LLC

ESC-La Casa Grande, LLC, a Delaware LLC

HCP 1101 Madison MOB, LLC, a Delaware LLC

HCP 600 Broadway MOB, LLC, a Delaware LLC

HCP Arnold MOB, LLC, a Delaware LLC

HCP Ballard MOB, LLC, a Delaware LLC

HCP NE Retail, LLC, a Delaware LLC

HCP TRS, Inc., a Delaware corporation

HCP Virginia, Inc., a Delaware corporation

Mission Springs AL, LLC, a Delaware LLC

Overland Park AL, LLC, a Delaware LLC

MOB/GP-West Houston, LLC, a Delaware LLC

MOB-West Houston, L.P., a Delaware limited partnership

MOB/Bay-1 of Florida, LLC, a Delaware LLC