New home design
Home Plans to suit your needs
Architectural Renderings
If you foolishly ignore beauty, you will soon find yourself without it ...... But if you invest in beauty, it will remain with you all the days of your life.

~ Frank Lloyd Wright ~

Renos & additions
Meet the founder
The creator and visionary ...

Darryl Kennedy

Owner / President ( M.A.A.T.O. - B.C.Q. )

A.A.T.O. Accredited

B.C.I.N. Registered

award winning


Listen to what our valued clientele and colleagues have to say about us .

Peter RuttanPeter Ruttan
19:23 19 Apr 24
Very well done drawings, very thorough professional and precise. I got exactly what was needed for building permits.
Wellington SeinoWellington Seino
18:30 03 Mar 24
Darryl Kennedy provided the architectural drawings for my house basement in northern Oshawa which was a legal requirement and the work was done carefully and very professionally. I am very satisfied with his work and I highly recommend his service for anyone with similar needs.
Julian D'SouzaJulian D'Souza
15:05 28 Feb 24
great service excellent work awesome person . I highly recommend Darryl. He has done several successful projects for me.. Beautiful designs. Thanks Darryl
19:16 27 Feb 24
Darryl was great to work with...very organized and professional. When I ran into a "glitch" with the permit office, Darryl made a phone call and quickly resolved the issue. What was originally going to be an added expense for me, due to the Town's request for revised drawings, turned into a simple email. Problem resolved! Highly recommend Cornerstone Drafting.
Ashraf MohammedAshraf Mohammed
15:35 27 Feb 24
I have taken the services of Darrel in 2016, i was very satisfied with his professional drawings which were approved by the city without any objection, i took his services in 2019. I found him to be very reasonable and profession to work with.
Peter FerrantePeter Ferrante
15:54 26 Feb 24
I had the opportunity to use Cornerstone for a custom home project, Darryl and his team are very professional and provide outstanding service. highly recommend!!
G NikolakakosG Nikolakakos
17:32 23 Feb 24
I had drawings done for a basement apartment and was amazed by Darryl's attention to detail. It was a pleasure working with him and I would highly recommend his services.
Melissa MichaudMelissa Michaud
12:58 21 Feb 24
We used Darryl to complete permit drawings for a finished basement and everything turned out great! He was a pleasure to work with- very professional and friendly. Would highly recommend!


You’re always welcome to call us to discuss your ideas & design dreams !


Cornerstone Drafting and Design

803 Glenmanor Drive,

Oshawa, Ontario. L1J 5A6

Phone :   (905) 433-4621

Email :  info(at)

Google map to business location

AATO Logo linked to AATO website

OBOA logo linked to OBOA website


Ministry-of-Municipal-Affairs-logo linked to MMAH website


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  If you have any questions, please CONTACT US .