House of Three is an architectural technology firm that produces BCIN-licensed, predesigned house plans, custom designs, and renovation blueprints.

We create affordable, attractive, and code-compliant designs for residential homes, renovations, and rentals. Located just north of the historic limestone city of Kingston, Ontario, we work with clients from our local area and across all of Canada.

House of Three was originally started to help homeowners design custom new homes and renovations. And over the years, it has evolved into so much more. After a few years in business, we noticed one consistent concern from homeowners and builders alike: the serious lack of predesigned plans made for use in Canada.

Existing predesigned blueprint options weren’t practical for our winters and didn’t account for the difference in climate and weather patterns across Canada. Plans need to accommodate unique snow loads and wind resistance across different regions. Plus, the average Canadian home needs room for mechanical equipment like furnaces, hot water tanks, or AC systems.

Any predesigned plans for use in Canada must be authentically Canadian.

House of Three offers 70+ predesigned house plans for anywhere in Canada. You can browse our selection of plans, all crafted by a BCIN-licensed designer. Within two weeks of purchasing, you’ll receive blueprints tailored to accommodate the climate specifications and mechanical equipment required for your region.

Our predesigned plans also cover a selection of ready-to-build auxiliary structures like garages, decks, and sheds.

How can we help?

House of Three offers a full suite of architectural design services. From custom homes to small commercial buildings, to tenant fit-ups, and renovations, each floor plan is created by a BCIN designer.

We design BCIN blueprints for

Custom Designs

Renovations

Tenant Fit-ups

Predesigned Plans

What is BCIN?

BCIN stands for Building Code Identification Number. This is a licensing requirement from the Ministry of Municipal Affairs & Housing in Ontario. It sets a standard for the construction industry, requiring qualifications for building officials/inspectors, registered code agents, and designers who wish to provide design services in the province of Ontario and ensures that designers meet minimum insurance requirements.

Meet the Team

Lisa Henderson M.A.A.T.O., CBCO

President and Lead Designer

With over 20 years of design experience, Lisa has worked as a building inspector, home builder, kitchen designer, flipped houses, and taught architecture as a college professor – before following her dream of owning her own business.

With over 20 years of design experience, Lisa has worked as a building inspector, home builder, kitchen designer, flipped houses, and taught architecture as a college professor – before following her dream of owning her own business. Lisa graduated from the Architectural Technician program at Loyalist College, is a certified architectural technologist with the AATO, and has completed all BCIN qualifications. 

Born and raised in Roslin, Ontario, Lisa moved to the Kingston area 20 years ago and now lives with her partner Trevor, son Bentley, and bullmastiff Magnus, in Inverary. 

Favourite style of architecture: Currently a mix of traditional and contemporary residential homes; it changes constantly!

Brandon Knowles

Junior Designer

As a graduate of the Architectural Technologist program at Loyalist College (where Lisa was one of his professors!), Brandon is currently working on obtaining his BCIN qualifications.

As a graduate of the Architectural Technologist program at Loyalist College (where Lisa was one of his professors!), Brandon is currently working on obtaining his BCIN qualifications. Prior to being a junior designer with House of Three, he was a carpenter for 13 years in both residential and commercial construction. 

Brandon still enjoys practicing carpentry by repurposing furniture at his home in Kingston with his wife, Tracy (whenever he’s not tending to his plants, reading, or cycling). 

Favourite architecture style: Repurposed building design / adaptive reuse and integration of older architecture.

Duncan Goodridge

Junior Designer

Duncan graduated with AutoCAD from the Southern Alberta Institute of Technology, a Bachelor of Arts from the University of Alberta, and a Bachelor of Applied Interior Design from Mount Royal.

Duncan graduated with AutoCAD from the Southern Alberta Institute of Technology, a Bachelor of Arts from the University of Alberta, and a Bachelor of Applied Interior Design from Mount Royal. He worked in Alberta as a CAD Specialist and Interior Designer for 13 years before joining the House of Three team. 

Duncan and his family recently relocated from Alberta to Kingston and are exploring the city in their spare time.

Favourite architecture style: He finds inspiration in the unique styles of international architecture.

Crystal Valade

Office Manager

Crystal holds down the fort in the House of Three office and conducts zoning searches. She’s your first point of contact if you have any questions about our services or need help reaching the right person.

Crystal holds down the fort in the House of Three office and conducts zoning searches. She’s your first point of contact if you have any questions about our services or need help reaching the right person. Her interest in building, renovation, and home design began when she worked previously for a construction company and at Lowe’s.

Crystal is originally from New Brunswick, and now lives in Kingston with her husband, two children, and two dogs. She’s a foodie who loves cooking, creating, and trying new dishes.

Favourite architecture style: Crystal loves the character in elegant, Victorian architecture.

Rebecca Hill-Lamoureux

Intern Designer

When she’s not interning, Rebecca is busy completing her degree in Architectural Studies, Conservation and Sustainability at Carleton University. She is also working on her BCIN qualifications to become a BCIN Designer.

When she’s not interning, Rebecca is busy completing her degree in Architectural Studies, Conservation and Sustainability at Carleton University. She is also working on her BCIN qualifications to become a fully licensed architectural technologist. Rebecca first joined House of Three as a high school co-op student through LCVI in Kingston.

Rebecca lives in Amherstview, just outside of Kingston. Living close to the water means she can spend her spare time sailing Lake Ontario.

Favourite architecture style: It’s a tie! Her favourites include gothic, organic, and rehabilitated architecture.

Janki Mashruwala

Intern Designer

Janki completed her Bachelor of Architecture at Veer Narmad South Gujarat University in India. While interning with House of Three, Janki is completing her diploma as an Architectural Technologist at George Brown College where she’s on the Dean’s list.

Janki completed her Bachelor of Architecture at Veer Narmad South Gujarat University in India. While interning with House of Three, Janki is completing her diploma as an Architectural Technologist at George Brown College where she’s on the Dean’s list.

Now living in Kingston with her family, Janki loves to hike, dance, and bike – as well as paint, cook, and be creative!

Favourite architecture style: It’s hard to choose – the list includes contemporary, modern, and brutalist architecture.

Magnus

Office Greeter

Magnus greets everyone with extra exuberance before curling up to sleep and snoring on the job. He is a team player at House of Three, and has delegated door-opening duties to each staff member, enabling him to sunbathe outdoors at lunchtime in true Bullmastiff style.

Magnus greets everyone with extra exuberance before curling up to sleep and snoring on the job. He is a team player at House of Three, and has delegated door-opening duties to each staff member, enabling him to sunbathe outdoors at lunchtime in true Bullmastiff style. 

Magnus lives in Inverary with Lisa, Trevor, and his best friend, Bentley.

Favourite architecture style: Anything that includes big windows for sunbathing and a large yard.