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CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21
CORE21

CORE21

21 Simcoe Street S, Oshawa, ON L1H 4G1

Core21
4.8 60 reviews
Contact Property

From shared office space to private offices to meeting rooms, large and small, CORE21 provides all the business amenities you need plus an intangible - a collaborative, friendly atmosphere from a growing community of more than 30 businesses and community groups making us their home.

Kisi App/Login required for entry into the building.

Complimentary coffee & tea
A/V equipment
Printer
White boards
Kitchen

Interested in this property?

CORE21

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Available Workspaces

Day Pass

from CA$40/day
Book Now

Meeting Room

from CA$45/hour
12 to 50
View Rooms

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

  • Map
  • Street
Points of interest powered by OpenStreetMap

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
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!

5

M

Jun 28 2024

Absolutely amazing space for working in and Andrew is one of the nicest people I’ve ever met! Highly recommend Core21.

Frequently Asked Questions

  • While storage in coworking spaces is generally limited, and mostly reserved for members with dedicated desks or private offices, you should always check with the coworking operator about additional storage solutions. Fill out the form on the right side of the page to reach out to them and learn all about the available options.

  • CORE21 operates during regular business hours, which are listed above. For any requests or requirements outside of these hours, please contact the coworking operator directly. 

  • Most coworking space amenities are open to all members, regardless of the membership plan. Meeting rooms require prior reservation, and private offices are exclusively available to those with subscription packages. However, the lounge, kitchen, and breakout spaces are open to everyone. Complimentary amenities are also available to all, while ancillary services can be purchased or negotiated individually with Core21.

  • Open desks may be the ideal choice if you thrive in a collaborative environment and value the opportunity to connect with fellow coworkers. Dedicated desks, on the other hand, provide a designated space with shared community amenities, catering to those who seek a balance between privacy and interaction.

    For ultimate focus and private interactions, private offices are best for solo individuals and teams that seek uninterrupted productivity.

    Selecting the most suitable workspace for you typically hinges on your work style and preferences, but it can also be determined by the type of work that you do, its duration, and whether you work alone or in a team.

  • Flexibility is the cornerstone of coworking, so you always have the option to adjust your workspace to match your current needs. With month-to-month memberships, you can effortlessly upgrade, downgrade, or even switch between different coworking plans.

    While the standard practice is to change memberships only once the current one ends, Core21 may be able to offer additional options, so it’s best to reach out to their staff directly.

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