Step into a refined 4-star stay in San Francisco’s Union Square at 515 Mason Street. This JW Marriott places guests just about 1 mi from the city center in San Francisco, California, United States, with easy access to iconic sights and neighborhoods. With 181 reviews and rates starting from $178, this hotel blends modern comfort with a touch of city chic.

Breakfast is offered, and the property features a restaurant and bar, plus room service for convenience. Amenities include a fitness center (free), streaming service (like Netflix), air conditioning, a terrace, and landmark views. Parking options come with extra charges—private parking and on-site parking—along with Wi-Fi (extra charges). The building is wheelchair accessible, offers elevators and upper-floor access, and provides soundproof rooms, free toiletries, and a bathtub for comfortable stays. Non-smoking rooms are available.

There’s space for meetings or special gatherings too, with meeting/banquet facilities available for an extra charge. A 24-hour front desk supports arrivals, and other thoughtful touches help make San Francisco exploration easy.

Mornings start right on site with breakfast, and two on-site dining options keep meals effortless between city adventures. Level III Restaurant serves American fare in a modern setting, while Level III Bar offers a chic spot to unwind with a drink or a quick bite. Room service is also available for those moments when staying in feels best.

For daily stays, a complimentary fitness center helps keep routines on track, and a terrace with landmark views invites a moment of city gazing after a day of exploring. Non-smoking rooms ensure a relaxed atmosphere, and meeting and banquet facilities provide space for gatherings or events for an extra charge. A 24-hour front desk stands ready to assist with plans and arrivals, adding an extra layer of convenience.

Pets are welcome, with charges may apply. Parking is available for a fee, including private parking and on-site parking, and Wi-Fi is also available for an additional charge. With its Union Square address and contemporary amenities, this hotel blends modern comfort with city chic, making it a bright base for discovering San Francisco’s sights and neighborhoods.