Building a garage in Ottawa is a significant investment that protects your vehicles from our harsh winters, increases your home's resale value, and provides valuable storage and workspace. Whether you are building a new detached garage, adding an attached garage to your home, or converting an existing garage into living space (and building a new one to replace it), understanding Ottawa's 2026 construction costs is essential for budgeting. Ottawa garage construction costs have increased approximately 15% to 20% since 2020 due to higher lumber, concrete, and labour costs. This guide provides cur...
Costs vary dramatically based on whether the garage is attached or detached, single or double, and the level of finish.
A basic single-car detached garage (12x22 feet, 264 sq ft) costs $30,000 to $50,000 in Ottawa. A standard double-car detached garage (24x24 feet, 576 sq ft) costs $50,000 to $90,000. A premium double-car garage with loft storage, insulation, drywall, and electrical costs $80,000 to $130,000. A tripl...
An attached single-car garage costs $40,000 to $70,000 — higher than detached because it requires integrating with the existing home's foundation, roofline, siding, and structure. An attached double-car garage costs $65,000 to $120,000. Attached garages require a fire-rated separation wall (minimum ...
Understanding where your money goes helps you make informed trade-offs.
Foundation and concrete floor represent 20% to 30% of total garage cost. A frost-depth foundation for a double garage costs $12,000 to $20,000 in Ottawa. This includes excavation, footings (at 4 to 5 feet below grade), foundation walls, backfill, gravel base, vapour barrier, and 4-inch reinforced co...
Insulated steel garage doors cost $800 to $2,500 each installed. Premium carriage-house style doors cost $2,000 to $5,000 each. Smart garage door openers with Wi-Fi connectivity cost $350 to $800 installed. For a double garage with two single doors (rather than one double door), the cost premium is ...
Garage construction in Ottawa requires permits and must comply with zoning bylaws.
All new garage construction in Ottawa requires a building permit. Permit fees for a typical garage range from $500 to $2,000 based on construction value. Required documentation includes site plan showing the garage location, setbacks, and lot coverage. Architectural drawings (foundation, floor plan,...
A basic single-car detached garage costs $30,000 to $50,000. A standard double-car detached garage costs $50,000 to $90,000. An attached double garage costs $65,000 to $120,000. Costs include foundation, framing, roofing, siding, doors, and basic electrical.
Yes. All new garage construction requires a building permit from the City of Ottawa. Permit fees range from $500 to $2,000. You also need to comply with zoning bylaws for setbacks, lot coverage, and height restrictions.
A standard detached garage takes 4 to 8 weeks to build once permits are approved. Permit approval takes 4 to 8 weeks. Plan 3 to 5 months total from application to completion. Weather delays in spring and fall can extend the timeline.
Yes. A detached double garage typically adds $25,000 to $50,000 to home value in Ottawa. An attached double garage adds $40,000 to $70,000. ROI is approximately 50% to 75% of construction cost, with higher returns in neighbourhoods where garages are standard.
If you use your garage for anything beyond vehicle storage (workshop, gym, storage of temperature-sensitive items), insulation is strongly recommended. Insulating walls and ceiling adds $3,000 to $8,000 but dramatically improves comfort and reduces heat loss from your home if the garage is attached.