how much is parking? Is there a cheaper parking lot near by?
The hotel offers Valet Parking for 280 cars. Overnight parking for $55.00, plus tax (14%), including in/out privileges daily. Overnight guests are always given priority for available parking spots over restaurant guests, banquet attendees, or public parking requests.
Several lots are located in the Union Square area. Average charge: $32.00 for overnight parking, with no in/out privileges.
There is a parking garage about 2 blocks away that is cheaper. It is near the Budget car rental facility I think. But it is still not cheap.
Get an answer from The Westin St. Francis San Francisco on Union Square staff and past guests.