The Mosser

54 Fourth Street, San Francisco, 94103-3193, CA

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1 Room / 2 Adults

1 rooms,
2 adults
  • Rooms:

  • Adults:

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TripAdvisor Rating


This boutique hotel in San Francisco is between the convention center and Union Square. The historic building first opened as the Keystone Hotel in 1913 and received a multi-million-dollar renovation in 2003, along with a new name. The hotel rooms are intimate, with the smallest rooms just providing a twin bedroom, and a queen bedroom sharing a bathroom. The largest rooms are queens; a family may need multiple rooms to be accommodated here. Cribs are available for free, and complimentary coffee, tea and muffins are served in the morning. Rooms feature flat-screen TVs, iPod docking stations and free Wi-Fi. Parking is only available via valet, for a fee. Coin-operated laundry facilities are on site. For gym access, guests must use the fitness center at the hotel across the street for a daily fee. Onsite dining is available at The Keystone, which is open from lunch through late night and serves brunch on weekends.

Our Editor Loves

  • Central San Francisco location
  • Boutique, historic property
  • Free Wi-Fi

Family Interests

  • Museum/Cultural

Family Amenities

  • Cribs
  • Free Wi-Fi
  • Laundry
  • Onsite Dining


Great vaue

by Footprints645956

Modest accommodations with a rockin' great location!! Rooms facing 4th can have lots of noisy night must be closed. Bathroom sink....oh so small. Nevertheless, office staff great and a very good value.

Among Tiny Bathrooms

by Paradise19520214291

It was fun having to back into the bathroom, there not being enough room to turn around to sit down. It was not so much fun when it came time to leave. The elevator picked that time to go on the fritz. With my shuttle bus waiting there was no choice but to carry my luggage down six floors. A nice test for an 88 year old. I passed with no problem. Bring on the next adventure.