**Exhibit 21.1**

 

**SUBSIDIARIES OF**

**SUNSTONE HOTEL INVESTORS, INC.**

 
| BuyEfficient,   LLC   EP Holdings, LLC   Pension Holding Corporation   Pico Ventures, LLC   Rochester Bevflow, Inc.   Rochester RIBM Lessee, Inc.   RTS Lessee, Inc.   SHP DT Bevflow, Inc.   SHP Lessee Corp   SHP Lessee Corp II   SHP Lessee Corp III   Sun BB, LLC   Sun CHP I, Inc.   Sun Manhattan, LLC   Sun Napa Merlot Lessee, Inc.   Sun SHP II, LLC   Sunstone 42nd Street Lessee, Inc.   Sunstone 42nd Street, LLC   Sunstone Atlantic Lender, LLC   Sunstone Big Beaver Lessee, Inc.   Sunstone Big Beaver, LLC   Sunstone Broadhollow Lessee, Inc.   Sunstone Broadhollow, LLC   Sunstone Broadway Lender, LLC   Sunstone Broadway, LLC   Sunstone Canal, LLC   Sunstone Canal Lessee, Inc.   Sunstone Center Court Lessee, Inc.   Sunstone Center Court, LLC   Sunstone Century Lessee, Inc.   Sunstone Century, LLC   Sunstone Cowboy GP, LLC   Sunstone Cowboy Lessee GP, LLC   Sunstone Cowboy Lessee, LP   Sunstone Cowboy, LP   Sunstone Downtown Lessee, Inc.   Sunstone Downtown, LLC   Sunstone Durante Lessee, Inc.   Sunstone Durante, LLC   Sunstone East Pratt GP, LLC   Sunstone East Pratt Lessee, Inc.   Sunstone East Pratt, LP   Sunstone El Camino Lessee, Inc.   Sunstone El Camino, LLC   Sunstone Hartsfield Lessee, Inc.   Sunstone Hartsfield, LLC   Sunstone Hazelwood, LLC |   | Sunstone   Holdco 3, LLC   Sunstone Holdco 4, LLC   Sunstone Holdco 5, LLC   Sunstone Holdco 6, LLC   Sunstone Holdco 7, LLC   Sunstone Holdco 8, LLC   Sunstone Holdco 9, LLC   Sunstone Holdco I, LLC   Sunstone Holt Lessee, Inc.   Sunstone Holt, LLC   Sunstone Hotel Acquisitions, LLC   Sunstone Hotel Investors, Inc.   Sunstone Hotel Partnership, LLC   Sunstone Hotel TRS Lessee, Inc.   Sunstone Hotels Rochester, LLC Sunstone Hotels, LLC   Sunstone Jamboree Lessee, Inc.   Sunstone Jamboree, LLC   Sunstone K9 Lessee, Inc.   Sunstone K9, LLC   Sunstone Kahler Lessee, Inc.   Sunstone Kahler, LLC   Sunstone Kettner Lessee, Inc.   Sunstone Kettner, LLC   Sunstone KIS Lessee, Inc.   Sunstone KIS, LLC   Sunstone LA Airport Lessee, Inc.   Sunstone LA Airport, LLC   Sunstone LaSalle Lessee, Inc.   Sunstone LaSalle, LLC   Sunstone Leesburg Lessee, Inc.   Sunstone Leesburg, LLC   Sunstone Longhorn GP, LLC   Sunstone Longhorn Holdco, LLC   Sunstone Longhorn Lessee GP, LLC   Sunstone Longhorn Lessee, LP   Sunstone Longhorn, LP   Sunstone MacArthur Lessee, Inc.   Sunstone MacArthur, LLC   Sunstone Napa, LLC   Sunstone North State Lessee, Inc.   Sunstone North State, LLC   Sunstone Ocean Lessee, Inc.   Sunstone Ocean, LLC   Sunstone OP Properties, LLC   Sunstone Outparcel, LLC   Sunstone Philly GP, LLC   Sunstone Philly Lessee, Inc. |   | Sunstone   Philly, LP   Sunstone Pledgeco, LLC   Sunstone Quincy Lessee, Inc.   Sunstone Quincy, LLC   Sunstone Red Oak Lessee, Inc.   Sunstone Red Oak, LLC   Sunstone RIP, LLC   Sunstone RP Collins Lessee, Inc.   Sunstone RP Collins, LLC   Sunstone Sea Harbor Holdco, LLC    Sunstone Sea Harbor Lessee, Inc.   Sunstone Sea Harbor, LLC   Sunstone SH Hotels, LLC   Sunstone Sidewinder Lessee, Inc   Sunstone Sidewinder, LLC   Sunstone Skyway Lessee, Inc.   Sunstone Skyway, LLC   Sunstone Top Gun Lessee, Inc.   Sunstone Top Gun, LLC    Sunstone Valley River Lessee, Inc.   Sunstone Valley River, LLC   Sunstone Westwood, LLC   Sunstone Wharf Lessee, Inc.   Sunstone Wharf, LLC   Sunstone Windy Hills Lessee, Inc.   Sunstone Windy Hill, LLC   Sunstone/WB Manhattan Beach Lessee, Inc.   SWW No. 1, LLC   Times Square Hotel Intermediate Mezz I, LLC   Times Square Hotel Intermediate Mezz II, LLC   Times Square Hotel Limited Partnership   Times Square Hotel Operating Lessee, LLC   Times Square Hotel Owner, LLC   Times Square Hotel Realty Corporation   Times Square Hotel Senior Mezz, LLC   Times Square Hotel Sub, LLC   Times Square Hotel Sunstone Mezz, LLC   Times Square Suites Equities Limited   TTS Facilities, LLC   WB Sunstone-Lake Oswego, LLC   WB Sunstone-Portland, Inc.   WB Sunstone-Portland, LLC   WHP Bevflow, LLC   WHP Hotel Owner 2A, LLC   WHP PPE Owner-1, LLC   WHP Texas Beverage 1, Inc.   WHP Texas Beverage 2, Inc. |
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