Hacienda Arms Apartments, also known as Coronet Apartments and Piazza del Sol, is a historic building located on the Sunset Strip in West Hollywood, California. The four-story, 52,000-square-foot (4,800 m2) Italian Renaissance Revival sourced Mediterranean Revival style structure was built in 1927 and operated initially as a luxury apartment building catering to the entertainment business. In the 1930s, it became the "most famous brothel in California." The building declined in prestige in the 1950s and 1960 and was acquired by rock star Rod Stewart in the 1970s. After Stewart's plans to redevelop the building as a luxury hotel ended in a legal dispute, the building was nearly destroyed in a 1983 fire that was found to be of suspicious origin. It was extensively renovated and, since 1986,