The Mosser

2,698 Ratings
San Francisco - Downtown

Why We Like It

  • Rooms are cozy and compact, but modern decor adds a fun, quirky ambiance.
  • Smack in the middle of downtown, within a block of every possible mode of transportation and an easy stroll to Union Square.
  • Proximity to the Moscone Center draws the biz crowd, but everyone will feel welcome.
The Mosser
The Mosser
The Mosser
The Mosser
The Mosser
The Mosser


87 rooms.
Complimentary WiFi.
Valet parking $57/night.
No self-parking.
No fitness center.
No pets.
All reservations require a $75.00 security deposit on a bank issued debit or credit card upon check in.
Guests have access to Marriott Fitness Center & Spa, located across the street for a fee of $15 per day.
Room approximately 110 sq ft.
Flat-screen TV.
No minibar.
No bar onsite.
The Keystone serves regional cuisine, main courses $20-40.
No breakfast available.
Complimentary coffee, tea and muffins in the lobby, 6:30 - 9:30 am daily.
54 4th Street
San Francisco, CA

What Our Bookers Think

82% Liked It (2,698 Ratings)
Michael C.
Room was quite small but that’s not really an issue. Some street noise but pretty normal for SF. Shower unfortunately had almost no water pressure, good luck getting clean.
2 months ago
Qi peng P.
The ceiling fan was quiet, and the person attending the door -in addition to the other staff members- was very friendly.
4 months ago
Ashley P.
The room was really small & not worth the price. Check in and check out was great. They have good service the bellmen service was awesome. I just wouldn’t pay the price for a small room
2 months ago

Need to Know

  • Rate displayed is per night, per room. Each room is guaranteed to fit 2 people. Extra guests are at the hotel’s discretion and may be subject to additional fees.
  • Check-in 3pm. Check-out 12pm.
  • 18+ to book.
  • Photo ID and credit card required at check-in.
  • 100% non-smoking rooms.
  • Some guests have reported that the hotel can get noisy.
  • Heads up: there are ceiling fans, but no air conditioning.
Sun, Dec 15
Mon, Dec 16
Sun, Dec 15 – Mon, Dec 16