Garage Conversions

Converting an attached or detached garage to finished living space is one of the most cost-effective ways to add usable square footage to an Ottawa home, since the basic structure, roof and foundation already exist.

The conversion typically involves insulating walls and ceiling to Ontario Building Code standards, raising or insulating the floor slab to eliminate the cold concrete, adding HVAC ductwork or a dedicated heating and cooling system, upgrading electrical service, and potentially adding plumbing for a bathroom or kitchenette.

In Ottawa, the existing garage slab may sit lower than the main house floor, requiring a raised subfloor system with proper insulation underneath to combat cold transfer during winter months. Before proceeding, you must verify with the City of Ottawa that your property can lose its garage parking without violating minimum parking requirements in your zone.

Garage conversions in suburban Ottawa areas like Kanata, Orleans and Barrhaven are especially popular for home offices, rental income suites and recreation rooms. An Ontario Building Code-compliant conversion requires permits and inspections for structural, electrical and mechanical work.