Detailed Location & Hours

Annabelle Asuncion

General Manager

annabelle.asuncion@clubone.com

CO Union Square

@COUnionSquare

Motivation for Monday: Why do you workout? http://t.co/Vm1whyYknl
1 day ago

Club One at

Union Square

535 Mason Street
San Francisco, CA 94102

tel 415/337-1010
fax 415/749-3920

Online Directions

Hours

Monday–Friday5:30am–10pm
Saturday–Sunday7am–7pm

Holiday Hours

New Year's Day5am–5pm
Easter DayClosed
Memorial Day8am–6pm
Independence Day8am–6pm
Labor Day8am–6pm
Thanksgiving DayClosed
Day After ThanksgivingClosed
Christmas Eve5:30am–3pm
Christmas DayClosed
New Year's Eve5am–5pm
Make This My Club One

A few short blocks from San Francisco's vibrant Union Square, Club One at Union Square features a 3-lane indoor lap pool, dedicated Pilates studio and outdoor training programs. Escape the fast paced city life or fuel up for a night on the town.

Our Features & Amenities

Ready to indulge in total relaxation? Make an appointment with one of our highly trained massage therapists. Or unwind after your workout in our sauna or steam room.

Download our brochure >

Classes TodayFee Based

Morning Class Instructor
Afternoon Class Instructor
12:30pm–1:30pm Pilates Group Reformer: Level 1
Suzette
12:30pm–1:15pm Core Conditioning
Katie T.
6pm–7pm Pilates Group Reformer: Level 1
Rachel
6:15pm–7pm Spinning
Sergio
7pm–8pm Pilates Mat
Rachel

Club News & Announcements

  • Private Swim Lessons

    Enjoy the benefits of individualized attention focused on your needs and goals. Our instructors can help you perform new strokes, use equipment effectively, train for competitions, overcome fear of the water or help perfect your breathing... Read More

    More Club News

  • Club One at Nob Hill Renovation

    We’re shaping up just like you!
    In an effort to provide you with an exceptional member experience, we are replacing several pieces of cardio equipment and undergoing club improvement efforts in the upcoming ... Read More

    More Club Announcements

Reviews

  • Great people!

    December 1 |  Posted by Ana

    I love coming to the gym because of all of the amazing people that work there, from the desk staff to the employees who always smile and are eager to help. I love my gym!

  • The 3 R's

    July 5 |  Posted by Ana

    Club One subscribes to the basic 3R's: Revitalizes, Reenergizes and ...Rejuvenates you!