Overview: Home Builders
A custom house starts with the lot. Before any framing, the land has to be graded and drained, and power and water have to reach the site. Past the end of city water and sewer, that means a well and a septic bed the soil will take. Frost depth sets how deep the footings go. In Ontario, a lot near a floodplain, shoreline or wetland can also need a permit from the local conservation authority.
Each province runs its own new home protection. Ontario builders must hold a licence from the HCRA, the province's builder regulator, and new homes carry Tarion's warranty. In British Columbia, a licensed builder has to buy home warranty insurance from a third party. Alberta wants both a builder licence and warranty coverage. In Quebec, the builder needs an RBQ licence and must be accredited by GCR, which runs the mandatory guarantee plan for new homes.
Check the builder before you sign. Ontario's builder directory shows licence status and any charges or discipline. BC Housing's registry shows whether a home was built with warranty insurance. Then look hard at the contract type. A fixed price puts the risk of overruns on the builder. Cost plus a fee opens the books and leaves the total moving.
Our listings show what each builder states on its own website, beside ratings from public reviews. Go through the province list, then your city, to find builders working in your area.
What does building a home cost in Canada?
Use a defined house design and separate construction from land, servicing, professional fees and financing.
| Service | Planning budget | What it covers |
|---|---|---|
| Standard custom-house construction including foundation | C$350–C$450per finished above-ground square foot | Straightforward custom home with ordinary finishes and specified foundation; divide by finished above-ground area, excluding garage.Use the finished above-ground area as the denominator. The foundation and basement shell are included here; basement finishes and garage are separate.What this estimate coversIncludes in this budget: Specified foundation and basement shell; Agreed above-ground construction and finishes Budget separately or confirm: Basement finishing and garage; Land, site servicing and design fees |
| Basic finish to a 1,000 sq ft basement | C$35,000–C$55,000per 1,000 sq ft basement | A dry unfinished shell finished as basic open living space, without a bathroom or kitchen.Ask the builder for the incremental price within your build contract. A standalone finishing package may include different overhead and scheduling.What this estimate coversIncludes in this budget: Insulated walls, drywall, lighting and ordinary flooring; Specified interior trade work Budget separately or confirm: Foundation and shell construction; Bathroom, kitchen and legal-suite requirements |
| Garage built with the new house | Scope-based quoteper agreed garage specification | Garage constructed alongside the house; footprint, foundation, doors and interior finish defined.Keep the garage specification separate from the quoted living-area rate, and check that shared foundations or site work are not counted twice. A new-build garage shares site work and connections with the house, so an addition price is not a reliable allowance. Provide the footprint, door sizes, insulation and heating requirements; request its separate price within the build contract.What this estimate coversIncludes in this budget: Only the shell and finishes itemized in the build quote Budget separately or confirm: Finished living accommodation above; Heating, EV charging and unlisted site work |
| Design and preconstruction package | Scope-based quoteper project | Defined house brief, design stages, estimating and permit-document scope.List the drawings, engineering, site investigations and revisions included. Confirm any fee credited if you proceed to construction. Design stages, engineering and site investigations vary by project. Provide lot information and your house brief; agree on deliverables, revisions and any fee credit toward construction.What this estimate coversIncludes in this budget: Specified design stages; Agreed cost planning Budget separately or confirm: Construction; Authority fees |
| Rural site preparation and servicing | C$30,000–C$150,000per assessed site | Rural access, grading and named utility or well/septic works; distances and connection requirements quantified.This is a broad site allowance, not a promise that every well, septic system and utility extension fits the range. Itemize distances, capacities and access work.What this estimate coversIncludes in this budget: Specified access, grading and drainage; Named utility, well or septic works Budget separately or confirm: Land and house-foundation construction; Unidentified ground conditions or exceptional extensions |
What changes the price
- Floor area definition, number of storeys, design complexity and finish specification.
- Soil, slope, access and distance to water, sewer, power or private services.
- Included design work, permit fees, contingencies, taxes and change-order terms.
Ask before accepting a quote
- What exactly is inside the quoted cost per square foot, including basement and garage treatment?
- Which site and servicing costs remain allowances rather than fixed prices?
- How are selections, cost overruns and changes approved before extra money is spent?
Build cost is only part of the budget
- Request a total-project budget with land, construction, professional fees, servicing and financing shown separately.
- Keep owner contingency separate from contractor allowances so it is not counted twice.
Canadian context
Check new-home warranty and registration requirements for the province, and identify any related charges in the project budget.
Planning amounts in Canadian dollars. Published tax treatment varies; confirm applicable taxes and the final total in your written quote. Rows can be different services, alternative packages or separately priced extras. Add only work that is needed and not already included in your quote.
Frequently asked questions
What should I check about the land first?
Whether the house you want can legally go there. Look at zoning and setbacks, then easements and how far services run. In Ontario, ask whether the lot sits in an area a conservation authority controls, because its permit comes on top of the town's. Get a soils test for the footings and septic bed. A steep lot eats the budget first, since cutting and filling come before any floor.
How do I check that a builder is licensed?
Search the registry your province keeps. In Ontario, the HCRA's Ontario Builder Directory shows a builder's licence status, how many homes it has built and any charges or discipline. Alberta's public registry lets you look up builders and homes. BC Housing's New Homes Registry shows whether a house was built by a licensed builder with warranty insurance. In Quebec, check the RBQ licence list, and GCR's list of the builders it accepts.
Can I build my own house without a licensed builder?
In British Columbia and Alberta, yes, once the province signs off on you as an owner builder. BC makes you pass an exam, and you're on the hook for defects yourself. BC also restricts selling the house for a set time after you move in. In Alberta, you can skip warranty coverage on the house, but selling it while the warranty period would still be running means buying that coverage first.
Is my deposit protected if the builder goes under?
Partly, through your province's plan. Tarion covers deposits on eligible Ontario homes up to a limit. If you're buying a new freehold house there, register the purchase with Tarion within forty-five days of signing, since buyers who skip it are set to have their deposit coverage limited. Quebec's GCR plan also protects deposits up to a limit, once the contract is signed. Talk to your lawyer before paying past the cap.
How do construction loan draws work?
Your lender pays out in stages as the house goes up, once an inspector or appraiser confirms each stage is done. You pay interest only on what's been paid out. In Ontario, the Construction Act also has you hold back part of each payment to the builder until the lien period runs out. Line up the lender's stages with the builder's payment schedule before the dig, or someone ends up waiting for money.
What happens at handover and in the first year?
In Ontario, the builder has to walk you through the house before handing over the keys. Anything unfinished, damaged or not working goes on the Pre-Delivery Inspection form, which you or someone you name signs. Items still not fixed after you move in go on Tarion's warranty forms, and each form has a set window through the first year. Miss one and Tarion may be unable to help with those items.
