Basement development cost calculator
Select your basement size, finishes, and optional work to explore a planning estimate. No signup required.
Basement cost calculator
Choose your basement size, finish level, and optional work to explore a planning range in Canadian dollars. This model uses illustrative allowances, not current supplier quotes.
How this estimate is calculated
The model starts at $52,500 for 400 sq ft, adds $90 for each additional sq ft, then applies the selected finish multiplier: standard 1, premium 1.35, or luxury 1.85. Selected allowances are added before a 15% range is applied and rounded to the nearest $1,000. These are our planning assumptions, not City rates or a construction quote.
Calgary permits and your budget
The engineering and permit option is a combined planning allowance, not a municipal fee. Actual building, trade, and any development permit fees depend on the application. Unchecking it does not remove a permit requirement. Keep taxes, contingency, and any excluded work in your full project budget.
Check Calgary’s current basement permit guidance and fees. Reviewed September 8, 2026.
Let’s plan your Calgary basement
Tell us what you want to change, your approximate basement size, and your timing. We’ll discuss the scope and what is needed for a project estimate.
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