Hilton San Francisco Union Square

333 O'Farrell Street, San Francisco, CA, USA, 94102
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About us

Rising above the heart of one of the world's great cities, the Hilton San Francisco Union Square is more than a convention hotel — it is San Francisco's premier stage for extraordinary events. As the largest convention hotel in the city, we offer an unrivaled combination of scale, sophistication, and service that transforms every gathering — from intimate boardroom sessions to landmark citywide conferences — into something truly iconic. With 134,500 square feet of beautifully appointed, technology-forward meeting and event space spanning some of the most striking venues in the city — including the Grand Ballroom with its soaring ceilings and programmable LED ambiance, the light-filled Yosemite Room, and the incomparable Cityscape Sky Bar perched atop the 46th floor as San Francisco's highest sky bar — our property delivers an event experience that is as visually stunning as it is operationally flawless. Every event at Hilton San Francisco Union Square is supported by an exceptional team of on-site Certified Meeting Planners, professional A/V specialists, and award-winning culinary talent — dedicated partners who bring precision, creativity, and white-glove service to every detail. Our robust suite of branding and activation opportunities, from dramatic digital signage and custom column wraps to in-room tablets and beyond, ensures your brand is woven seamlessly into every touchpoint of the attendee journey. We are also deeply proud of our identity as San Francisco's "Hotel with a Heart" — a recognition of our longstanding commitment to sustainability, community, and responsible hospitality. For planners who believe that great events should also do good in the world, we are a natural and inspired choice.

Venue Details

ChainHilton
BrandHilton Hotels
Built1964
Renovated2022
Total meeting space134,500 sq. ft.
Guest Rooms1,921
Venue typeHotel

Industry Ratings

AAA
Forbes Travel Guide

Awards

Cvent awards

Amenities

Room features and guest services

  • Concierge services
  • Internet access
  • Laundry service
  • Luggage storage
  • View (mountain)
  • View (ocean or water)
  • View (urban)

Facilities

  • Onsite catering
  • Onsite restaurant
  • Onsite security
  • Pet friendly
  • Rental car service
  • Space (private)
  • Wheelchair accessible

Need dates

Priority windows that venues prefer for hosting events

Oct 19, 2026 - Oct 25, 2026
Oct 29, 2026 - Nov 15, 2026
Nov 20, 2026 - Dec 6, 2026
Dec 16, 2026 - Jan 9, 2027
Jan 15, 2027 - Jan 31, 2027
Feb 12, 2027 - Feb 20, 2027
Mar 6, 2027 - Mar 18, 2027
Mar 21, 2027 - Apr 3, 2027
Apr 10, 2027 - Apr 17, 2027
Apr 23, 2027 - Apr 30, 2027
May 16, 2027 - Jun 5, 2027
Jun 24, 2027 - Jul 24, 2027

Seasonal Availability

Match your event dates with this hotel’s availability. Low seasons tend to have better availability.
High season
Shoulder season
Oct 29 - Nov 15
Low season
Jul 01 - Aug 31Nov 16 - Dec 31

Meeting rooms

Total meeting space
134,500 sq. ft.
Largest room
29,637 sq. ft.
Space (private)
134,000 sq. ft.
Meeting rooms
45
Second largest room
19,980 sq. ft.
Explore Meeting Rooms
Explore Meeting Rooms
Find the perfect room with setup charts and interactive 3D floor plans.

Meeting space

Meeting room floor plans

Golden Gate Rooms
California Room

Guest rooms

Total guest rooms
1,921
Single (1 bed)
936
Double (2 beds)
936
Suites
151

Location

Getting Here

Hilton San Francisco Union Square is located in downtown San Francisco, 13 miles from San Francisco International Airport (SFO) and 20 miles from Oakland International Airport (OAK). The property is a 5-minute walk from the Powell Street Bay Area Rapid Transit (BART) and MUNI station and is also accessible by airport shuttle, rideshare and taxi. 25 minutes from SFO International airport by car, 40 minutes by BART train. We are located in the Union Square District, in the heart of downtown San Francisco.
Distance from airport 13 mi
Parking in the area
Paid parking
( $70.00/day )
Valet parking
( $80.00/day )

Local Attractions

The Golden Gate Bridge

The Golden Gate Bridge

Historical landmark
The Golden Gate Bridge in San Francisco is one of the most recognizable landmarks in the world. The iconic suspension bridge is known for its striking orange color and breathtaking views.
Powell Street Cable Car

Powell Street Cable Car

Historical landmark
7 mins
The Powell Street Cable Car Turnaround is where the historic cable cars are manually rotated to change direction. Located at Powell and Market Street, it’s a popular starting point for rides through the city’s iconic hills.
Union Square

Union Square

Shopping
5 mins
San Francisco Union Square is a bustling urban plaza surrounded by upscale shops, hotels, and theaters. It’s a central hub for shopping, dining, and cultural events in the heart of the city. Notable shopping venues include: Nike, Louis Vuitton, Nintendo, Apple, Neiman Marcus, and more.
Curran Theater

Curran Theater

Theater
4 mins
The Curran Theater is a historic venue known for hosting Broadway productions and world-class performances. Located near Union Square, it offers an intimate and elegant setting for live theater.
445 Geary Street
San Francisco, CA 94102
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SFMOMA

SFMOMA

Museum
SFMOMA is a premier contemporary art museum featuring an extensive collection of modern artworks. Located in the SoMa district, it’s renowned for its striking architecture and diverse exhibitions.
China Town

China Town

Historical landmark
The oldest Chinatown in North America is a vibrant, historic neighborhood known for its bustling streets, authentic Chinese cuisine, and rich cultural heritage.
Fisherman's Wharf

Fisherman's Wharf

Park
The city’s popular waterfront district is known for its seafood restaurants, lively street performers, and attractions like Pier 39 and boat trips to Alcatraz.
Chase Center

Chase Center

Nightlife
Home to the Golden State Warriors, Chase Center is a state-of-the-art sports and entertainment arena nestled in San Francisco’s Mission Bay neighborhood. Come catch a game or explore the views of this iconic venue.

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Additional Information

Safety Information

Cancellation Policy

72 hours

Additional details

• 1,921 guest rooms, 151 suites • Heated outdoor pool and whirlpool spa • 24 hour, 2,800 square foot fitness center • On-site FedEx Office® Print & Ship Center • Dining options include a 24-hour Grab 'n' Go Cafe, 2 restaurants, and a Sky Bar • Near Moscone Convention Center and offices of major corporations in the financial district

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Hilton San Francisco Union Square Frequently Asked Questions

Explore frequently asked questions from the Hilton San Francisco Union Square regarding Health and Safety, Sustainability, and Diversity and Inclusion

Sustainable Practices

Please provide comments or a link to any publicly communicated Hilton San Francisco Union Square's sustainability or social impact goals/strategy.
Hilton has committed to cut our environmental footprint in half and double our social impact by 2030. Refer to our website, https://cr.hilton.com, for details on our award-winning Environmental, Social and Governance (ESG) programs.
Does Hilton San Francisco Union Square have a strategy that focuses on the elimination and diversion of waste (i.e. plastics, papers, cardboard, etc.)? If yes, please elaborate on your strategy of elimination and diversion of waste.
Yes, Hilton has committed to reducing waste in our managed operations by 50% by 2030. Through the end of 2020, we have reduced waste in our managed portfolio by 73% since our 2008 baseline, and our managed and franchised hotels have reduced waste by 62%.

Diversity and Inclusion

For US hotels only, is Hilton San Francisco Union Square and/or parent company certified as a 51% diverse owned business enterprise (BE)? If yes, please indicate which one of the following you are certified as:
No response.
If applicable, could you please provide a link to Hilton San Francisco Union Square's public report on their commitments and initiatives related to diversity, equity, and inclusion?
Please refer to https://jobs.hilton.com/diversity and our annual Supplier Diversity Report (https://cr.hilton.com/wp-content/uploads/2021/03/Hilton-2020-Supplier-Diversity-Report.pdf).

Health and Safety

Were practices at Hilton San Francisco Union Square developed based on health service recommendations from public governmental entities or private organizations? If Yes, please list which organizations were used to develop these practices.
Yes, CDC & WHO. Hilton CleanStay, a new industry-defining standard of cleanliness (https://newsroom.hilton.com/corporate/news/hilton-defining-new-standard-of-cleanliness) Hilton up to date customer messaging: https://www.hilton.com/en/corporate/coronavirus/
Does Hilton San Francisco Union Square clean and sanitize public areas and publicly accessible facilities (i.e. meeting rooms, restaurants, elevator banks, etc.)? If yes, describe any new measures that are taken.
Yes, Install hand sanitizer stations/disinfecting wipes in public areas & on shuttles; enhanced cleaning of high touch areas, lobbies, elevators, doors, bathrooms; F&B service in accordance with food safety guidelines, dining configured for physical distancing
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