What Size Barndominium Can You Build for Your Budget in Alberta?

Most people start with a floor plan and then find out what it costs. It works better the other way round: start with the money, take out everything that is not the house, and divide what is left by a published cost per square foot. Here is that arithmetic with 2026 Canadian figures, plus the rules that decide how much a lender will put behind it.

Figures below are industry data from cited third-party sources, not a quote from Chinook Barndo Co.. Every project is priced individually.

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Bottom Line Up Front

Subtract land, site work, GST (and PST in Saskatchewan and B.C.), permits, design and a contingency before you divide by a cost per square foot. Altus Group's 2026 rates are construction only and exclude all of those.
At Altus Group's 2026 Calgary range of $180 to $275 per square foot, a $500,000 construction budget builds roughly 1,800 to 2,800 square feet of house (arithmetic). In Vancouver, at $200 to $315, the same money builds roughly 1,600 to 2,500.
A lender caps the budget too. CMHC's thresholds are 39% of gross income for housing costs and 44% for all debt, calculated at the greater of your contract rate plus 2% or 5.25%.

Published cost figures

Third-party and government figures, each with its source. None of them is a quote, and none of them is ours.

Measure	Range	Source
Calgary: single-family house, wood-framed, unfinished basement (construction only)	$180–$275per sq ft	Altus Group, 2026 Canadian Cost Guide, 'Single Family Residential with Unfinished Basement', Calgary column (as at January 31, 2026) — https://image.hello.altusgroup.com/lib/fe2d11747364047a721170/m/1/Altus_2026_Canadian-Cost-Guide_ENG.pdf
Edmonton: single-family house, wood-framed, unfinished basement (construction only)	$175–$275per sq ft	Altus Group, 2026 Canadian Cost Guide, 'Single Family Residential with Unfinished Basement', Edmonton column (as at January 31, 2026) — https://image.hello.altusgroup.com/lib/fe2d11747364047a721170/m/1/Altus_2026_Canadian-Cost-Guide_ENG.pdf
Vancouver: single-family house, wood-framed, unfinished basement (construction only)	$200–$315per sq ft	Altus Group, 2026 Canadian Cost Guide, 'Single Family Residential with Unfinished Basement', Vancouver column (as at January 31, 2026) — https://image.hello.altusgroup.com/lib/fe2d11747364047a721170/m/1/Altus_2026_Canadian-Cost-Guide_ENG.pdf

Step 1: Find the Construction Budget

The number you divide is not the number you start with.

Take out the land and the site

Altus Group's rates assume a level, open lot with services at the property line. On an acreage, the access road, building pad, well, septic system and power connection come out of your total first. Get them quoted for your parcel; they vary more from one site to the next than the house does.

Take out the taxes

Altus Group's figures exclude GST. The Canada Revenue Agency lists GST at 5% in all three provinces, plus PST of 6% in Saskatchewan and 7% in British Columbia; Alberta has no PST. Check whether a rebate applies to you: the federal first-time home buyers' GST rebate, and in Saskatchewan the provincial PST Rebate for New Home Construction.

Take out design, permits and a contingency

Altus Group lists architectural and engineering fees, permits, surveys and contingencies among the costs its unit rates leave out. A steel or post-frame barndominium usually needs engineered structural drawings, so do not skip that line.

Step 2: Divide by a Published Cost per Square Foot

Using Altus Group's 2026 ranges for a wood-framed single-family house. All figures are arithmetic, rounded, construction only.

$400,000 construction budget

At Altus Group's Calgary range ($180 to $275 per square foot) that is about 1,450 to 2,200 square feet; at the Edmonton range ($175 to $275), about 1,450 to 2,300; at the Vancouver range ($200 to $315), about 1,270 to 2,000.

$500,000 construction budget

At Altus Group's Calgary range, about 1,800 to 2,800 square feet; Edmonton, about 1,800 to 2,850; Vancouver, about 1,600 to 2,500.

$600,000 construction budget

At Altus Group's Calgary range, about 2,200 to 3,300 square feet; Edmonton, about 2,200 to 3,400; Vancouver, about 1,900 to 3,000.

$750,000 construction budget

At Altus Group's Calgary range, about 2,700 to 4,150 square feet; Edmonton, about 2,700 to 4,300; Vancouver, about 2,400 to 3,750.

Step 3: Price the Shop Separately

The single biggest mistake in barndominium budgets is one blended cost per square foot.

House area and shop area are different products

Altus Group excludes unfinished basement and garage floor area from the area its house rates apply to. A shop with a slab, insulation and an overhead door is closer to a garage than to a kitchen. Budget the living area at the house rate and the shop at its own rate, then add them.

Bigger is cheaper per foot, not in total

A larger building spreads fixed costs like the kitchen, bathrooms and mechanical room across more floor area, so the cost per square foot tends to drop. The total still rises. Plan the size you need, then check the per-foot figure, not the other way round.

Plans make the arithmetic real

Once you have a target square footage, compare it with real layouts. The small barndominium and 30x40 barndominium plans show what a modest footprint holds; the floor plans page has the full range.

Step 4: Check What a Lender Will Finance

Your budget is the smaller of what you want to spend and what you can qualify for.

The debt service limits

CMHC's maximum thresholds for an insured mortgage are a gross debt service (GDS) ratio of 39% and a total debt service (TDS) ratio of 44%. GDS is housing costs against gross income; TDS adds every other debt payment.

The stress test

CMHC calculates those ratios at the greater of the contract interest rate plus 2% or 5.25%. OSFI requires federally regulated lenders to apply the same minimum qualifying rate to uninsured mortgages. You qualify at a higher rate than you will pay.

The down payment

CMHC requires at least 5% down on the first $500,000 and 10% on the remainder for an insured mortgage, and mortgage loan insurance is not available at $1,500,000 or more. On a newly built home CMHC uses the lower of market value or construction cost, so an appraisal below cost raises the down payment.

Reading this because you are weighing a build? The next step is a plan drawn for your program.

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Common questions

The 7 asked most often. If yours is not here, ask it directly.

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How big a barndominium can I build for $500,000 in Alberta?

If $500,000 is the construction budget alone, Altus Group's 2026 Calgary range of $180 to $275 per square foot gives about 1,800 to 2,800 square feet (arithmetic). If the same budget also has to cover land, site work and GST, the house will be smaller.

What does the cost per square foot include?

Altus Group's 2026 rates cover construction only, with average-quality finishes on a level, open lot. They exclude GST, land, site development, permits, design fees, surveys and contingencies, and they exclude basement and garage floor area from the area the rate applies to.

Is a smaller barndominium cheaper per square foot?

Usually not. Kitchens, bathrooms and mechanical systems are fixed costs that a small house spreads over fewer square feet, so a small house tends to cost more per square foot while costing less in total.

How much house can I afford on my income?

For an insured mortgage, CMHC caps housing costs at 39% of gross income and total debt payments at 44%, calculated at the greater of your contract rate plus 2% or 5.25%. A lender or mortgage broker will run the numbers on your actual income and debts.

How much do I need for a down payment on a new build?

For a CMHC-insured mortgage, at least 5% of the first $500,000 and 10% of the remainder. CMHC uses the lower of market value and construction cost as the lending value, so plan for a larger down payment if the appraisal may come in under cost.

Should the shop count in my square footage?

Price it separately. Altus Group excludes garage area from the area its house rates apply to, and a shop costs much less per square foot than finished living space. Blending them makes the house look cheaper per foot than it is.

Does building in Saskatchewan or B.C. change the arithmetic?

Yes. Saskatchewan adds 6% PST on construction contracts and B.C. adds 7% PST, on top of 5% GST, according to the Canada Revenue Agency. Altus Group's Vancouver range of $200 to $315 per square foot is also higher than Calgary's.

Questions answered? Tell us what you want to build and we will put real numbers against it.

Start the survey (825) 465-3825

Sources

Keep reading

The pages that answer the next question this one raises.

How much does it cost to build a barndominium in Alberta?

The cost figures behind this arithmetic, with Saskatchewan and B.C. sections.

Read it

Small barndominium plans

What a modest footprint holds when the budget is tight.

Read it

Financing a barndominium in Canada

Construction draw mortgages, CMHC insurance and FCC for farm properties.

Read it

Custom plans

A plan drawn to your budget and your site rather than the other way round.

Read it

Want a real number instead of a range?

Start the survey and tell us about your land and what you want to build. Include the rural municipality or county and the legal land description if you have them, because the local land use bylaw, the septic system and the water supply change the budget more than the building does. The survey costs nothing.

Start the survey