Detailed Location & Hours

Annabelle Asuncion

General Manager

annabelle.asuncion@clubone.com

CO Union Square

@COUnionSquare

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49 days 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 Day5:30am–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 Eve5:30am–5pm
Make This My Club

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 Mat
Rachel
6:15pm–7:15pm Zumba*
Nia
7:15pm–8:15pm Hatha Yoga
Melanie

Club News & Announcements

  • 50 Club Pilates

    Rewarding Pilates Training

    Today Through December 31st
    Complimentary

    Become part of Club One’s unique member program that tallies and rewards frequent participation in Pilates. It’s easy–every... Read More

    More Club News

  • You voted, we won. Thank you!

    Club One recently won “Best Health Club in 2012” by SF Weekly readers! These public accolades are a true testament of our exceptional members and awesome team. We owe this accomplishment to you and give you our sincerest gratitude.

    More Club Announcements

Reviews

  • Great service, friendly staff, close to home!

    July 5 |  Posted by Ashley

    I go to Club One Union Square and am always greeted by friendly staff, and a clean locker room. Myron (the membership representative) is super helpful and friendly. I love taking Erica's spin class on Mondays and Wednesdays.

  • The 3 R's

    July 5 |  Posted by Ana

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