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Core21

Available Workspaces

  • CORE21

    CORE21

    from CA$40/day

Business hours

Monday

from 8:30 am to 4:30 pm

Tuesday

from 8:30 am to 4:30 pm

Wednesday

from 8:30 am to 4:30 pm

Thursday

from 8:30 am to 4:30 pm

Friday

from 8:30 am to 4:30 pm

Saturday

Closed

Sunday

Closed

21 Simcoe Street S, Oshawa, ON L1H 4G1

Walk & ride

  • Walk score

    96/100

    Walker's Paradise
  • Transit score

    55/100

    Good Transit
  • Bike score

    81/100

    Very Bikeable

Powered by Walk Score ®

Reviews

4.8
View all 60 reviews on Google
1

Conrad du Plessis

May 28 2026

deal with Arrogant owner Andrew not pleasant

5

Larry James

Oct 11 2025

Thank you for the tour Andrew. Core21 is a beautiful coworking office space. Very clean and bright and the prices are very affordable.

5

Horacio Escalada

Jun 28 2025

Great place, with auperb customer service.

5

Jackie Deschenes

May 20 2025

Clean, bright space. Very accommodating - great place to rent for corporate meetings.

5

Mike MacDonald

Apr 30 2025

Great space! CORE21 has provided me a great work environment for 2ish years so far. Owners are always super responsive and transparent; great communicators, very accomodating. Work area is superb, neighbours extremely friendly too. Wonderful community over here, highly recommend!

Frequently Asked Questions

  • At Core21, Board Rooms and Event Rooms can be booked by the hour. For those looking for a workspace for an entire day, CORE21s, Board Rooms and Event Rooms are also available.

  • Yes, you can certainly take a tour of the space before signing up for a membership. In fact, it’s encouraged, to help you get a feel for what your workday will look like. Reach out here to set up a time to come and see the space.

  • Coworking spaces typically have limited storage options, most of which are reserved for members with dedicated desks or private offices. With that said, it’s best to contact the coworking operator directly via the form on the right side of the page to learn about available storage options.

  • Whether you're a day pass holder or a monthly member, you can access most amenities. Meeting rooms do require prior scheduling, and private offices are reserved for those with subscriptions. However, the lounge, kitchen, and breakout spaces are open to all. Complimentary services are also available regardless of membership tier, while ancillary services can be purchased separately or negotiated with Core21.

  • Absolutely. Flexibility is one of the best parts of coworking. Most coworking memberships are month-to-month, so you can quickly adjust your space preferences according to your unique requirements and the size of your team. Whether that means upgrading the space or downsizing it or even completely changing the type of coworking subscription that you use, you always have the option to adjust as you go.

    It may be possible to adjust your membership before current membership ends, but you will have to discuss and negotiate directly with Core21, who is more than happy to help out.