Full-Service Design

Choose from our predesigned Canadian house plans for homes, cottages, garages, and other projects or work with House of Three on a custom design for your dream home, addition, or renovation.


We’re a dedicated BCIN licensed architectural design firm with 20+ years of experience, invested in removing the stress from your project planning.


We offer a cost-friendly and straightforward solution for new home construction, real estate development, custom homes, tenant-fit ups, or renovations.

Here For You

Whether you’re a first-time home builder or experienced contractor, looking for custom or predesigned plans, we’re happy to talk through the details with you.

Modern style home.

Custom New Homes

We love to work on custom designs and set your vision onto paper. House of Three has prepared unique custom house plans for clients all over Canada and can guide you through the hurdles of zoning requirements and building permits, bringing you one step closer to the perfect new build.

A green backyard with a wooden deck and house in the lower third of the screen.

Dream Renovations.

House of Three creates blueprints for renovations, additions, decks, and small commercial spaces within Eastern Ontario. We’ve built an excellent reputation with real estate investors and other clients renovating to create secondary suites or planning tenant fit-ups.


Lisa was very helpful and knowledgeable throughout our design. She was always willing to explain things and made herself available. Thank you again for the great job!

Francis Kendall

Thorough, professional and very pleasant to do business with!!!

Smith Family Orthodontics

Very impressed by the speed, accuracy, efficiency and price of this job. Lisa was very pleasant to deal with.

Westboro Housing Coop

Not seeing the perfect plan?

We also offer custom design services.