St. Regis Museum Tower is a 42-storey 484 ft (148 m) skyscraper  in the South of market  district of San Francisco, California, adjacent to Yerba Buena Gardens, MOscone Center, PacBell Building and the San Francisco Museum of MOdern Art.The tower is bounded by Mission Street, 3rd Streets  and is operated by Starwood Hotels & Resorts Worldwide. The hotel recently attained five-star status.

General information
Type	Hotel Residential
Location	685 Mission Street San Francisco, California
Coordinates	37.7863°N 122.4013°WCoordinates: 37.7863°N 122.4013°W
Construction started	2001
Completed	2005
Cost	US$125 million
Height
Roof	146.3 m (480 ft)
Technical details
Floor count	42 4 below ground
Floor area	67,000 m2 (720,000 sq ft)
Design and construction
Architect	Skidmore, Owings and Merrill
Developer	Metropolitan Development Group
Structural engineer	Skidmore, Owings and Merrill
Main contractor	Webcor Builders
Other information
Number of units	286 hotel 90 residential