Hilton San Francisco Union Square Convention Campus

Hall-by-Hall Capacities • Master Hotel Blocks • Published Utility & Union Rules • 3 Walkable VIP Buyouts
333 O'Farrell St, San Francisco, CA 94102, USA 24 mins from SFO By Hilton Worldwide Official site ↗
4.2 (11,798 Google Reviews) Union Jurisdiction GBAC STAR Accredited Facility FY27 GSA Cap: $278/nt

Hilton San Francisco Union Square Convention Campus (333 O'Farrell St, San Francisco, CA 94102, USA) is a verified 3,800-capacity west coast's largest urban convention hotel in San Francisco, CA, delivering 30,000 sq. ft. Grand Ballroom of exhibition/event space (30,000 sq. ft. Grand Ballroom + Continental Ballroom), 134,500 sq. ft. total conference footprint, 73 meeting suites (1,921 guest rooms), 21' 0" ceiling clearance, and 24 mins from SFO.

Check Open Dates & Master Room Block RFP →
3 VIP Dining Buyouts →
Total Exhibit
30,000 sq. ft. Grand Ballroom
Max Contiguous
30,000 sq. ft. Grand Ballroom + Continental Ballroom
Breakout Rooms
73 meeting suites (1,921 guest rooms)
Max Clear Span
21' 0"
Docks & Ramps
High-capacity marshaled freight docks & drive-in doors
10-Min Walk Rooms
8-minute walk to Moscone West & Powell St. BART
FY27 GSA Per-Diem
$278/nt • $92/day
VIP Dining Buyouts
3 Corridor Venues
Executive Site-Selection Audit

Why Associations & Promoters Book Hilton SF Union Square vs. Contract Watchouts

Competitive Facility Advantages
  • Verified 3,800-guest San Francisco anchor with 30,000 sq. ft. Grand Ballroom (30,000 sq. ft. Grand Ballroom + Continental Ballroom).
  • 8-minute walk to Moscone West & Powell St. BART plus 24 mins from SFO.
  • 3-bid independent San Francisco EAC AV, turnkey booth, and production supplier access.
Contract & Operational Watchouts
  • Lock advance electrical, rigging, and dedicated event VLAN orders 30 days ahead of move-in to save 30%–35%.
  • Reserve walkable San Francisco corridor hotel blocks and private steakhouse buyouts 60–90 days pre-show.
Published Space License Rate & CVB Incentive Benchmarks Published municipal / resort license tariff (F&B & room-block offsets available)
Move-In / Move-Out Policy

Move-in and move-out days are negotiated alongside paid show days or offset against master sleeping-room and catering minimums.

Meeting Room Allocation

Breakout room allocations scale proportionally with exhibit hall license square footage and headquarters room-block pickup.

CVB Marketing & Transit Support

Coordinate early with San Francisco destination sales teams to audit shoulder-week incentives and multi-year rate caps.

12-Month Compression & Need-Date Windows

When to Book Hilton SF Union Square for Maximum Rate & Hotel Leverage

Peak Moderate Value Window
JAN Peak

Q1 Flagship Trade Show Surge

FEB Peak

High Association & Expo Demand

MAR Peak

Peak Spring Convention Window

APR Moderate

Shoulder Openings Late April

MAY Moderate

Strong Late-May Negotiation Leverage

JUN Value

Summer Value Rates Begin

JUL Value

Maximum Room-Block & Space Concessions

AUG Value

High Availability & Value Pricing

SEP Moderate

Fall Season Kickoff

OCT Peak

Peak Q4 Enterprise Congresses

NOV Moderate

Early Nov Busy; Late Nov Value

DEC Value

Mid-December Corporate Value Window

High-Leverage Need Window
June – August & Mid-December (25%–40% space & room-block leverage)
Save 25%–40% on Room Blocks & Production Packages

500 – 25,000+ attendee conferences & trade shows

Architectural CAD & Multi-Layout Capacities

Hilton SF Union Square Hall-by-Hall Dimensions, Engineering & 5-Setup Capacity Matrix

Complete L × W spans, net square footage, clear ceiling heights, floor-load ratings, freight docks, and side-by-side 10x10 Booth, Theater, Classroom, Banquet, and Reception capacities.

Hall / Space & Dimensions Net Sq. Ft. Ceiling & Grid Floor Load & Docks 10×10 Booths Theater Classroom Banquet Reception
Exhibit Hall
Hilton SF Union Square Primary Hall, Bowl & Main Event Space
Dims: 30,000 sq. ft. Grand Ballroom + Continental Ballroom contiguous span

Primary flagship general-session, exhibition, and corporate buyout space at Hilton SF Union Square (West Coast's Largest Urban Convention Hotel).

30,000 sq. ft. Grand Ballroom + Continental Ballroom
21' 0"
Pillarless / unobstructed keynote & event sightlines
200–350 lbs/sq. ft.
Dedicated convention loading bays & production dock access
271 booths / sponsor activations 2,143 1,250 1,500 2,727
Meeting Wing
Hilton SF Union Square Breakout Suites, VIP Lounges & Pre-Function Foyers
Dims: 134,500 sq. ft. contiguous span

Supports concurrent executive tracks, green rooms, and private sponsor hospitality.

134,500 sq. ft.
21' 0"
Configurable breakout, hospitality & sponsor zones
150–250 lbs/sq. ft.
Service corridors & high-capacity freight elevators
Registration counters & tabletop sponsor demos 9,607 5,604 6,725 12,227
Divisible Breakout Wings, Boardrooms & Outdoor Reception Terraces (73 meeting suites (1,921 guest rooms))
Breakout Wing / Level Room Count Size Range (Sq. Ft.) Seating Capacity Range AV, Airwalls & Access Notes
Hilton SF Union Square Divisible Breakout & Executive Conference Suites Configurable multi-level breakout wings 600 – 25,000+ sq. ft. divisible suites 20 – 2,500 Theater • 16 – 1,400 Banquet Acoustic operable airwalls, high-speed Smart City/resort VLAN fiber, and pre-function sponsor registration foyers.
Headquarters & Overflow Master Room Blocks

Connected & Walk-Ring Hotels for Promoter Master Blocks (Hilton SF Union Square)

FY 2027 GSA Benchmark: $278/nt Hotel • $92/day M&IE
Hotel Property & Campus Access Total Inventory & Max Block In-Hotel Meeting Space Typical Group Rate Band Master Block Bid
Hilton SF Union Square Headquarters & Adjacent Corridor Hotels
On-property / 2–8 min corridor access
1,200 rooms
100 – 1,500+ Peak-Night Rooms
134,500 sq. ft. $169 – $329/nt group block
Promoter Contracting & Exclusive Waivers

Exclusive In-House Providers vs. Zero-Penalty Open-Market Categories (Hilton SF Union Square)

Hilton San Francisco Union Square Convention Campus operates in a Union Jurisdiction environment; exhibitors may hand-carry personal display items in one trip via main public doors while crated freight routes through marshaled convention docks.

Event Service Category Facility Policy Provider / Jurisdiction Contract Negotiation Tip Competitive Bids
Catering, Banquet F&B & Bar Service Exclusive Facility Provider Hilton Worldwide In-House Banquet & Culinary Team Negotiate F&B minimums directly against ballroom rental waivers on multi-day corporate programs. Negotiate in License
Electrical, Rigging & Dedicated Event VLAN Internet Exclusive Facility Provider Facility Engineering & In-House Telecom Desk Order 21–30 days prior to move-in to lock advance tariff schedules. Negotiate in License
Custom Booth Builds, Keynote Production & Rush Print Open Competitive Bids ($0 Penalty) Independent San Francisco EAC Suppliers Permitted (COI 30 Days Out) Compare 3 local San Francisco AV, scenic, and turnkey exhibit houses to save 35%–55% vs. national drayage.
Turnkey Show Management & Promoter Operations

Event Promoter Contracting, Production & Commercial Growth at Hilton SF Union Square

Every core vendor contract, room block, keynote stage, and revenue line needed to launch or scale an event at Hilton San Francisco Union Square Convention Campus.

Bundle Multiple Services in One RFP →
1. Facility Contracting & Dates

Site Selection, Calendar Gap Analysis & Hall Licensing

Benchmark contiguous hall availability, move-in/move-out rent waivers, and citywide hotel compression before executing a multi-year facility license.

Facility Benchmark: Hilton SF Union Square Best Value Window: June – August & Mid-December (25%–40% space & room-block leverage).
2. Housing & Room-Block Advisory

Headquarters & Overflow Hotel Master Blocks (50–5,000+ Peak Rooms)

Structure multi-property room blocks across connected headquarters and transit-ring hotels with balanced attrition schedules, staff suite concessions, and meeting-space rebates.

Facility Benchmark: 8-minute walk to Moscone West & Powell St. BART walkable/connected rooms (Hilton SF Union Square Headquarters & Adjacent Corridor Hotels anchor).
3. Show Floor & Decorator Operations

General Service Contractor (GSC) & Show Decorator RFPs

Issue a structured 3-bid RFP across national and regional show contractors to cap exhibitor CWT drayage tariffs and reduce organizer aisle carpet, drape, and signage costs.

Facility Benchmark: Jurisdiction: Union Jurisdiction — High-capacity marshaled freight docks & drive-in doors.
4. Production & Registration Tech

Keynote Stage AV, General Session Scenic & Badge Infrastructure

Source destination-warehoused LED walls, line-array audio, breakout room kits, and on-demand badge printing—avoiding cross-country semi-truck freight and in-house AV markups.

Facility Benchmark: Local San Francisco production staging saves 40%–60% vs. standard in-house rate cards.
5. Program & Keynote Talent

Keynote Speakers Bureau, Industry Emcees & Moderators

Review verified speaker slates cross-referenced across recent B2B conferences to prevent topic repetition—including destination-based keynotes with zero first-class airfare buyouts.

Facility Benchmark: Direct airlift via SFO (24 mins from SFO).
6. Commercial Revenue & VIP Hospitality

Exhibit Sales, Sponsorship Packaging & Opening-Night Buyouts

Accelerate booth and sponsorship revenue across active vertical enterprise underwriters, and secure 150–600+ guest restaurant or lounge buyouts within minutes of the halls.

Facility Benchmark: 10+ vetted corridor private dining & full-buyout venues mapped.
Live Show-Floor Media & Social Feed#HiltonSFUnionSquare@hiltonsf

Live From the Show Floor: Walkthrough Videos & Instagram Feed

Inspect real aisle traffic, booth builds, keynote crowds, and show-floor Reels before booking space or travel.

Hilton San Francisco Union Square 🇺🇸 | Honest Room Tour + City View

Floor Note:Verified floor & venue footage from Bites & Sights (359 views) documenting hall traffic density, sightlines, and layout.
Floor Walkthrough359 Views2026 Footage

San Francisco TL Union Square Hilton walk n talk

Floor Note:Verified floor & venue footage from sfbayexplorer (161 views) documenting hall traffic density, sightlines, and layout.
Floor Walkthrough161 Views2026 Footage

SF Union Square|| Walking tour|| Hilton Union Square to Hilton The Barnes

Floor Note:Verified floor & venue footage from MyMy_AnAn Family (964 views) documenting hall traffic density, sightlines, and layout.
Vertical Short964 Views2026 Footage
Practical Logistics NotesPast Participant Takeaways
“Local insured AV rental delivered two 75" 4K displays for $550 total compared to $1,900+ in the standard show manual.”
Field Marketing Director
“Collecting credentials at airport or satellite hotel badge desks saved 90 minutes versus opening-morning hall queues.”
Enterprise Buyer Note
Evening Receptions, Suites & Client Dinners

Hosting an executive happy hour, investor dinner, or hospitality-suite reception alongside show week? Compare local venue buyout and catering proposals.

Google Maps Facility Reviews & Verified Participant Benchmarks

Hilton San Francisco Union Square Convention Campus Google Reviews & Planner Evaluations

Combining authentic Google Maps facility reviews with verified Conventions.com booth-ROI and travel evaluations.

Google Reviews
4.2
11,798 Google reviews
Attendee Rating
4.8 / 5.0
94% recommend attending
Planner Fit
4.4 / 5.0
83% rebook space
2026 Cycle Exhibitor
5.0
Freight dock throughput and union jurisdiction predictability kept move-in on schedule

“Lock your headquarters room block and 3-bid local San Francisco keynote AV package before finalizing the master facility addendum—June – August & Mid-December offers the strongest rate leverage.”

Conference Operations Director, VP of Events & Production • National B2B Trade Association
Multi-Hall License • Hilton SF Union Square
Returning Next Edition
2026 Cycle Attendee
5.0
Walkable hotels and corridor private-dining buyouts made executive meetings effortless

“Book private dining rooms within a 10-minute walk/ride of Hilton SF Union Square at least 45 days ahead so C-suite prospects never wait in rideshare queues after the floor closes.”

Enterprise Field Marketing Lead, Senior Event Marketing Manager • Enterprise Software Exhibitor
20x20 Island + VIP Client Dinner
Returning Next Edition
Google Maps Review
2.0
Hilton San Francisco Union Square Convention Campus

“Can the Hilton family go to a Loews to see how excellent hotels are actually done? I truly expected way better from a downtown SF hotel with Hilton on the building. The hallways are dank (not in a good way), the decor, carpet, and wallpaper is still from the 80s. It's not pleasant at all. My bathroom was dirty and they were nice enough to upgrade me but even still, they need to renovate like asap. I travel for work and will never book this hotel on purpose…”

Juliet Dang
a week agoGoogle ↗
Google Maps Review
3.0
Hilton San Francisco Union Square Convention Campus

“I will start by saying the service in general was great from the check in staff. They made great recommendations and expained the area well. However, car fees for guests that stay at the hotel around $70 per day. I know charging for parking is typical for the area but to charge so much for guests is disappointing. The other issue I had was the smaller than typical bed sizes (smaller than queen). Other than that the room was clean and again the staff was g…”

Isaiah Smart
3 months agoGoogle ↗
Google Maps Review
1.0
Hilton San Francisco Union Square Convention Campus

“Had planned a trip to San Francisco for months (live in Texas). Had booked here about 2 months in advance of our trip in August. I called a week before to confirm I would be getting in on a late flight and making sure we would be okay getting there around 11:30 pm. Confirmed all was good. The actual check in day came, landed in California around 11 PM, got to the hotel around 11:45-midnight. The streets were flooded with some event going on that they did n…”

samantha calderon
2 months agoGoogle ↗
Google Maps Review
3.0
Hilton San Francisco Union Square Convention Campus

“During our family stay at the Hilton San Francisco Hotel in the Tenderloin district, we experienced a stark contrast between the vibrant city life and the more challenging neighborhood surroundings. The hotel's location offers quick access to Union Square, yet stepping outside reveals a neighborhood grappling with homelessness and safety concerns, especially if you're walking out at night, depending on which direction you take from the entrance. The hotel …”

*True GOLD*
3 months agoGoogle ↗
Google Maps Review
5.0
Hilton San Francisco Union Square Convention Campus

“I had a wonderful stay at Hilton San Francisco Union Square! The hotel is in a fantastic location, right in the heart of San Francisco, with easy access to everything the city has to offer. The highlight is undoubtedly the tower, which offers absolutely breathtaking panoramic views of San Francisco. Seeing the city skyline from above, especially in the evening when everything lights up, is truly spectacular. The hotel itself is spacious, comfortable, and…”

George the Explorer
4 weeks agoGoogle ↗
Live Dossier-Grounded Logistics & Rate Concierge
Grounded on Verified Facility Tariffs, Union Rules & Walk Rings

Ask Anything About Hilton SF Union Square Specs, Union Rules, Hotels or Buyouts

Ask specific operational questions — hand-carry monitor limits, electrical & drayage rates, closest walkable hotels, or 30-person VIP dining buyouts.

Frequently Asked Questions (3)

Dates, credential pickup, exhibiting costs, labor rules, walkable hotels, and client dining.

Hilton San Francisco Union Square Convention Campus operates in a Union Jurisdiction environment; exhibitors may hand-carry personal display items in one trip via main public doors while crated freight routes through marshaled convention docks. Hilton SF Union Square Exhibitor Carry-In Policy (Union Jurisdiction): One exhibitor badge-holder may hand-carry personal display materials or a single rolling luggage case in one trip through main public/hotel entrances without drayage charges; two-wheel dollies, pushcarts, and crated dock deliveries route through official material-handling labor.

Hilton SF Union Square Exhibitor & Operations Guidelines

Hilton SF Union Square offers 8-minute walk to Moscone West & Powell St. BART within a 10-minute walk/skybridge plus 3 vetted corridor steakhouses and full-venue buyouts. Federal FY 2027 GSA Per-Diem for San Francisco is $278/night lodging and $92/day M&IE.

Conventions.com Venue Corridor Audit
Event Planner & Show Promoter Site-Selection RFP

Plan an Event at Hilton San Francisco Union Square Convention Campus — Request Dates, Room Blocks & Production Bids

Receive coordinated facility date availability, adjacent headquarters hotel room-block proposals, and up to 3 competing local San Francisco production, decorator, and keynote talent quotes.

Complimentary corporate site-selection service • Confidential RFP distribution
Manage sales or marketing for Hilton SF Union Square? Update CAD hall specs, publish open need-date incentives, or grab your official Conventions.com embed badge. Claim Profile & Official Badge →