Hilton San Francisco Union Square
| Hilton San Francisco Union Square | |
|---|---|
1964 wing in foreground, with 1988 facade cladding, and 1971 tower in rear | |
| Hotel chain | Hilton Hotels & Resorts |
| General information | |
| Location | United States |
| Address | 333 O'Farrell Street San Francisco, California |
| Coordinates | 37°47′07″N 122°24′39″W / 37.7853°N 122.4109°W |
| Opening | May 25, 1964 |
| Owner | Wilmington Trust (In receivership) |
| Management | Hilton Worldwide |
| Height | Tower I: 150.3 m (493 ft) Tower II: 106 m (348 ft) |
| Technical details | |
| Floor count | Tower 1: 46 floors Tower 2: 23 floors Tower 3: 19 floors |
| Design and construction | |
| Architect(s) | William B. Tabler 1964, John Carl Warnecke and Associates 1985-88 |
| Other information | |
| Number of rooms | 1,919 |
| Number of restaurants | 2 |
| Website | |
| Website | |
The Hilton San Francisco Union Square is a skyscraper hotel located several blocks south-west of Union Square in San Francisco, California. Opened in 1964, the 18-story, 1200-room original building was known as a "motel within a hotel", allowing guests to park directly next to their upper-story rooms. Filling an entire city block, it remains one of the tallest structures representing Brutalist architecture, though it has been extensively altered since its construction. A second 46-story tower was added in 1971, while a third smaller 23-story connecting tower was completed in 1987. Renovated in 2017, it is the largest hotel on the West Coast, with 1,921 rooms.