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UNION Square

In collaboration with The Studio Space in Somerville Catalyst Comedy presents a pop-up rehearsal lab in Union Square specially focused on the needs of improvisers and independent theater artists.  

438 Somerville Ave; Somerville, MA, 02143



  • accommodates 14-15 people
  • 88-key keyboard
  • wifi & internet
  • TV with Netflix
  • sound system (3.5mm input)
  • improv bell
  • restrooms
  • padded performance floor space for comfortable and safe work
  • late night access
  • cozy creative atmosphere
  • 5 min walk to Aeronaut Brewing Company, Artisan's Asylum, Esh Circus Arts, and Market Basket as well as everything Union Square has to offer.

Available from 8am to 3am

Coming soon!  Ceiling sound-proofing.  


2018 Rates

$12/hour: improv and theater rehearsal rate 

  • individual practice and small-group rehearsals (15 people max)
  • groups with hired coaches

$50 - pack of 5 rehearsal hours $10/hr

$15/hour: teaching rate 

  • private (one-on-one) lessons*
  • workshops classes*
  • auditions

*instructor publicizes a class for individuals or groups for a one-time or multi-date class.  




The lab is rented on a "first come, first served" basis, so if there is a time that you are considering, we recommend putting in a rental request and confirming your reservation by paying promptly. Please note that reservations are not confirmed until payment has been received unless otherwise negotiated for long-term use.

Once you have determined that the rental time you want is available (by looking at the calendar above), fill out our rental request form to the right. If we don't need any more info from you, we'll send you an invoice, from which you can easily pay by credit card. We also accept payments via Venmo (@cataystcomedy).

After payment is confirmed, you will receive information on accessing the space and other details particular to your rental. 

For general inquiries do not use the form but email Pablo at

Name *
Phone *
Include date(s) and times (start and end)