Sunstone Hotel Investors, Inc. operates as a self-managed and self-administered real estate investment trust. The Company's primary business is to acquire, own, asset manage and renovate primarily urban and resort upper upscale hotels in the United States. It operates through hotel ownership segment. It owns primarily urban and resort upper upscale hotels in the United States. As of December 31, 2016, the Company had interests in 27 hotels. Of the 27 hotels, the Company classifies 24 as upper upscale, two as upscale and one as luxury. All but one (the Boston Park Plaza) of its 27 hotels are operated under nationally recognized brands, such as Marriott, Hilton and Hyatt. As of December 31, 2016, the hotels consisting of 27 hotel portfolio averaged 490 rooms in size. The Company's hotels are located in gateway markets, such as Boston, New York, Washington, District of Columbia (DC)/Baltimore, Chicago, Orlando, New Orleans, San Francisco, Los Angeles, Orange County and San Diego.