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CORE21

Meeting and conference space on Simcoe St S, Oshawa

4.8from 59 reviews

When you call, mention you found them on hall-rental.ca.

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Things to ask before renting this hall

  • ✓TypeMeeting and conference space
  • ✓CapacityEvent room: 45 theatre style or 22 at tables
  • ✓PriceEvent room non-members $60/hour, max $300/day + HST
  • ?CateringNot published
  • ?BarNot published
  • ?ParkingNot published
  • ✓AccessibleEvent room fully accessible
  • ✓Sound and A/V60" LCD screen, guest Wi-Fi, whiteboard wall, conference phone
  • ✓KitchenServery with sink and refrigerator in event room
  • ✓HoursListed below
  • ✓Phone(905) 725-6737

✓ from the hall's public listing or its own website (checked October 2026). ? not published yet. Own this hall? Claim it to fill these in.

Booked for

  • Meetings
  • Corporate events
  • Conferences

Rooms

Event Room

Capacity 45 theatre style; 20-22 at tables

Price $40/hr members (max $200/day); $60/hr non-members (max $300/day) + HST

Boardroom

Capacity Up to 10

Price $45/hour, max $250/day + HST

Small Meeting Room

Capacity Up to 4

Price $35/hour, max $200/day + HST

About CORE21

CORE21 is a shared office and business centre in downtown Oshawa with an event room for presentations, seminars, classes and networking events, plus a boardroom and small meeting room for hourly rental.

CORE21 is a meeting and conference space at 21 Simcoe St S, Oshawa, ON L1H 4G1. Reviewers rate it 4.8 out of 5, from 59 reviews. It is also listed as business center, event venue, office space rental agency.

Before you book: prices change, so confirm the rate for your date, plus deposit and cancellation terms, in your enquiry.

What guests say

4.8 out of 5 from 59 reviews. Read the reviews

Questions renters ask

How many guests does CORE21 hold?

Event room: 45 theatre style or 22 at tables

How do I check if CORE21 is free on my date?

Send an enquiry from this page with your date and guest count, or call the hall.

Where is CORE21?

21 Simcoe St S, Oshawa, ON L1H 4G1. Use Get directions for a route from where you are.

Other halls nearby

Source: Public business listings (as of May 2026) and the hall's own website (checked October 2026). Spot something wrong? Suggest an edit.