JW MARRIOTT SAN FRAN UNION SQ
515 MASON ST. · San Francisco, CA
Located in the Mission, this upscale property offers refined accommodations and a central position for exploring San Francisco. The staff is known for going beyond standard hospitality — from personalized recommendations to arranging experiences that only locals know about. Whether you're visiting for a special occasion or an extended stay, the location provides easy access to San Francisco's best dining, cultural attractions, and entertainment. Muni and BART serve the surrounding neighborhood, with SFO about 30 minutes away.
Key Details
Check-in Time
3:00 PM
WiFi
Free basic WiFi for all guests. Marriott Bonvoy members receive enhanced WiFi — Elite members get premium speeds.
WiFi tips & tricks →Parking
Valet parking available, typically $65–85/night. Street parking is extremely limited and metered.
Avoid hidden parking fees →Pet Policy
Pet policies vary by property. Many Marriott hotels allow dogs for a $100+ non-refundable fee. Always confirm before booking.
Policies may change — confirm details directly with the hotel before your stay.
Marriott Bonvoy Property
Marriott Bonvoy members earn points on stays and get complimentary WiFi. Elite members may receive room upgrades, late checkout, and lounge access. Free to join.
Compare hotel loyalty programs →What To Know Before Your Stay
Practical tips for hotel guests in San Francisco
San Francisco is hilly. Wear comfortable shoes and plan walking routes with elevation in mind — Google Maps shows stair routes.
The city is foggy and cool year-round. Bring layers even in summer — mornings and evenings drop into the 50s.
Cable car rides cost $8 per trip. For unlimited rides, buy a Muni Passport ($13/day or $31/3-day) that covers cable cars, buses, and streetcars.
Fisherman's Wharf restaurants are overpriced for what you get. Instead, try the Ferry Building Marketplace for better seafood.
Street parking in SF is notoriously difficult. Use SpotHero or hotel valet — many hotels charge $50–75/night for parking.
The Mission District has the city's best burritos and street food. Dolores Park nearby is perfect for a sunny afternoon.
Listed Amenities
Amenities are compiled from public listings and may not be current. Confirm availability with the hotel.
Want a better room?
Read our room upgrade guide →Location & Getting There
Getting There
Muni buses and BART cover most of the city. From SFO, BART runs directly downtown in about 30 minutes. The city is hilly but walkable in most areas.
Nearby Attractions
- Fisherman's Wharf10–20 min by transit
- Chinatown5–15 min walk
- Ferry Building Marketplace10–20 min walk
- SFMOMA (Museum of Modern Art)10–20 min walk
Explore San Francisco
Our San Francisco city guide covers neighborhoods, restaurants, attractions, and practical tips for your trip.
Read the San Francisco City Guide →Hotel Travel Guides
Practical guides to help you during your stay
Frequently Asked Questions
What time is check-in and checkout at JW MARRIOTT SAN FRAN UNION SQ?
Standard check-in is at 3:00 PM and checkout is at 12:00 PM. Early check-in and late checkout may be available depending on occupancy — request at the front desk or when booking. Marriott Bonvoy Elite members may receive complimentary late checkout.
Does JW MARRIOTT SAN FRAN UNION SQ have free WiFi?
Free basic WiFi for all guests. Marriott Bonvoy members receive enhanced WiFi — Elite members get premium speeds.
Is there parking at JW MARRIOTT SAN FRAN UNION SQ?
Valet parking available, typically $65–85/night. Street parking is extremely limited and metered.
Does JW MARRIOTT SAN FRAN UNION SQ allow pets?
Pet policies vary by property. Many Marriott hotels allow dogs for a $100+ non-refundable fee. Always confirm before booking.
What attractions are near JW MARRIOTT SAN FRAN UNION SQ?
Notable attractions near the hotel include Alcatraz Island (30 min ferry from Pier 33), Union Square (5–15 min walk), and Golden Gate Bridge (15–25 min by car or bus). The hotel's concierge or front desk can provide directions and current hours.
About Staying in San Francisco
Why are San Francisco hotels so expensive?
Limited land (49 square miles), strict building regulations, and constant demand from both tourism and the tech industry keep hotel supply tight and prices high. Budget $200–400/night for mid-range properties.
Is Fisherman's Wharf a good area to stay?
It's convenient for waterfront attractions like Pier 39 and Alcatraz ferries, but it's the most tourist-heavy neighborhood. Union Square or SoMa offer better restaurant access and a more local feel at similar prices.
Do I need a car in San Francisco?
No — in fact, a car is a liability. Parking is expensive ($40–75/night), hills make driving stressful, and Muni/BART/cable cars cover the city well. Use rideshares for areas transit doesn't reach.
About This Information
Hotel details are compiled from publicly available sources. Policies and amenities may change — we recommend confirming directly with the hotel before your stay. If you notice outdated information, please let us know.
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