Step into a refined 4-star stay in San Francisco’s Union Square at 515 Mason Street. This JW Marriott places guests just about from the city center in San Francisco, California, United States, with easy access to iconic sights and neighborhoods. With reviews and rates starting from , 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.