Work at CSI for the day with our new Lounge Pass!

CSI Annex Lounge

Make high ceilings, exposed brick, and vintage furniture the backdrop for your next event.

The CSI Annex Lounge (Bloor and Bathurst) is an incredible multipurpose event space with a built-in presentation room. It’s a perfect venue for larger conferences, fairs, launch parties, fundraisers… almost anything!

Your event booking comes with audiovisual equipment. You’ll also have access to gender neutral washrooms and an open-concept non-commercial kitchen within the event space.

Room Details

  • Location: CSI Annex
  • Floor: Ground Floor
  • Capacity: 220 People
  • Square Footage: 7000 sq.ft
  • Availability: Monday to Friday, 5 pm onwards; Saturday to Sunday, all day
  • Starting Price: $350/hr


AV Equipment

Dynamic Lighting
Projection Screens & TVs
Speaker System


Accessible Entrance
Chairs & Tables
Communal Kitchen
Dog Friendly
Wi-Fi Access


Book Your Event Now

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Accessibility, Cancellations & Frequently Asked Questions


We are committed to ensuring all members and their guests are able to use our services. Information on our buildings’ accessibility is available here.


We require 10 business days to cancel your booking without any financial consequence, otherwise the full amount of the booking will be charged.

We require a three-hour minimum rental for event spaces.


These are some of our more frequently asked frequently asked questions. For the full FAQ, please click here.

Meeting Rooms are smaller enclosed rooms typically used for board meetings, team meetings, and smaller activities.

Event Spaces are larger open-concept spaces, or a combination of open-concept space with meeting rooms.

The time of your booking with us should include time that you need to set up and clean up your event. This will be coordinated between your team and ours.

CSI will send you an electronic invoice for the amount of the rental which will include payment instructions. Any questions about invoicing can be directed to

Events may not run past 11pm, though your team can stay on site past that time to clean up. Most Event Spaces also function as Member Lounges during business hours, and are unavailable until 5pm on weekdays – the exception is The Garage at CSI Annex and Suite 101 at CSI Spadina.

We require a three-hour minimum rental for event spaces.