By providing permit-ready, code-compliant custom design plans up front, House of Three streamlines municipal approvals and construction, enabling real estate investors in Kingston to maximize property values, rental returns, and project predictability.
This project transformed a dilapidated Kingston duplex into a functional, high-density five-unit dwelling, revitalizing the structure while retaining its original footprint. In collaboration with local engineering experts, we upgraded the property's design and increased its rental capacity.
Live Webinar | Monday, August 24, 2026 | 12:00 – 1:00 PM EDT (+15 min live Q&A) | 1 CE Hour We're excited to share that House of Three's President...
A once‑unused garage was transformed into a efficient, well‑designed detached ADU that boosts rental value, fits seamlessly into the property, and adds much‑needed housing with smart planning and thoughtful execution.
A North Kingston investor transformed a solid, classic home into a high-performing duplex by switching to electric heat—freeing up basement space for a third bedroom—and leveraging an existing egress window to create a bright, welcoming secondary suite that blends seamlessly into the neighbourhood while significantly boosting rental income.
At House of Three, we offer pre-designed deck plans that can fit almost any yard! Additionally, we can help you create a custom deck plan to design the deck of your dreams!
Plan 21-0354 is a 3 bedroom, 2 bathroom bungalow offering open-concept living, a private primary suite, and practical garage-to-mudroom access.
If you’ve ever wished you could turn your property into a more flexible space, either to support extended family or generate rental income, you’re not alone. Across Kingston and other...
Railing requirements for your deck depends on how tall your deck is. In the City of Kingston, if your deck is over 600mm (60cm or 24”) above finished grade at any point you will be required to add guardrails to your deck platform as well as handrails for your deck’s stairs.
In most cases, yes a permit is needed to build a deck if your deck reaches a certain height or square footage. It’s always best to check in with your municipality to see what their zoning requirements are! With municipalities in Ontario, they will review complete applications within 10 business days of submission.