EXHIBIT 21 Subsidiaries of Atria Communities, Inc., a Delaware corporation --------------------------------------------------------------- Hillhaven Properties, Ltd., an Oregon corporation Atria Health Centers, Inc., a Delaware corporation Atrium at Buckhead, LLC, a Georgia limited liability company Atria St. Matthews, LLC, a Kentucky limited liability company Atria Stoneybrook, LLC, a Kentucky limited liability company Atria Springdale, LLC, a Kentucky limited liability company Atrium at Weston Court, LLC, a Tennessee limited liability company Atrium at Weston Place, LLC, a Tennessee limited liability company Elder Healthcare Developers, LLC, a Georgia limited liability company Atria Cordova, LP, a Tennessee limited partnership Atria Riverdale, LP, a Tennessee limited partnership Woodhaven Partnership Ltd., a Florida limited partnership Cornerstone Care, L.L.C., a Kentucky limited liability company Atria Highland Crossing, LLC, a Kentucky limited liability company