Basement & Garage Suites in Airdrie, Alberta
Airdrie permits secondary and garage suites in most districts — no discretionary approval needed. But the City's own suite pages quote outdated limits. The current rules, and the real fees.
Airdrie is the permissive one among Calgary’s neighbours — secondary and garage suites are a permitted use in most residential districts, not a discretionary approval. There’s no grant, and one thing to watch: Airdrie’s own web pages still quote outdated size and parking limits.
HouseLyft helps homeowners in Airdrie, Alberta work out what their lot legally permits, what a suite will cost to build, what it should earn, and which programmes actually apply — then connects them with a vetted builder.
Among Calgary’s neighbours, Airdrie is the easy one — but only if you’re working from the current rules, and the City’s own pages aren’t.
Suites are permitted, not discretionary
Under Land Use Bylaw B-01/2016 (as amended by B-30/2024), a secondary suite is a permitted use across most of Airdrie’s residential districts — R1 and its variants, R2, and several others — with a garage suite permitted in the R1 group as well. “Permitted” is the important word: unlike Cochrane and Chestermere next door, most Airdrie suites don’t need a discretionary approval or a neighbour-notification hearing.
Two situations flip that to discretionary, and they’re worth knowing up front: a property reached only by a cul-de-sac, and a secondary suite in a semi-detached home.
2Units permitted
Up to 55 m²Garage suite
$305Development permit
Where the City’s own pages are wrong
This is the detail that catches Airdrie homeowners out. The City’s garage- and garden-suite web pages still publish superseded numbers — 400 m² floor areas, 13 m heights, 600 m² lot minimums and per-bedroom parking — all replaced by the 2024 amendment. The rules that actually apply now:
Garage suite
Read why →Garage suite
max 55 m², height 7.4 m, minimum lot 260 m², rear yard only, 4 m from the house
← BackGarden suite
Read why →Garden suite
max 70 m², height 5.0 m, minimum lot 360 m²
← BackParking
Read why →Parking
one stall per suite, on top of the house’s two
← BackIf a design is being drawn to the figures on the City’s page, it may be built to a rule that no longer exists. Working from the current bylaw is the whole value here.
What it costs
Airdrie’s development permit is $305 as of January 1, 2026 — not the $300 still shown on some City pages. A basement-suite building permit runs $0.59 per square foot (minimum $135), and homeowner trade permits are $100 plus the permit fee. There’s no grant: the City’s Clean Energy Improvement Program is a loan for energy upgrades, and suites aren’t eligible.
What an Airdrie suite earns
CMHC doesn’t break out Airdrie as its own rental market, so there’s no official occupied-unit average to quote. A local listings source put asking rents around $1,442 for a one-bedroom and $1,702 for a two-bedroom in early 2026 — but those are asking rents, not CMHC survey figures, so treat them as a rough ceiling and let us confirm the real rate for your unit. The demand signal is clearer than the rent: Airdrie is young (average age 34), growing over 4% a year, and suite applications were up 33% in early 2025.
What we do — and what we don’t
HouseLyft establishes whether a project stands up before anyone spends money on drawings: what your lot permits under the current bylaw (not the stale one), what a suite costs to build, and what it should earn. Where it works, we hand you to a vetted builder and stay involved. Where it doesn’t, we say so.
We are not a lender and we do not sell mortgages.
One correction worth carrying, because it is still advertised widely: the federal $80,000 Secondary Suite Loan was cancelled in Budget 2025 and never launched. Our financing guide sets out what is actually live.
Serving Airdrie and the Calgary region
We work across Airdrie and the surrounding communities, including Calgary, Cochrane and Chestermere — where the unit rules and approval processes differ materially from Airdrie’s. The full list is on our service areas page.
We also handle multiplex development and planning and permits across the region.
Common questions about Airdrie suites
Usually no. Secondary and garage suites are a permitted use in most residential districts. Approval becomes discretionary only for cul-de-sac-only lots and suites in semi-detached homes.
Under the current bylaw, a garage suite is up to 55 m² and a garden suite up to 70 m² — not the larger figures still shown on some City pages, which are out of date.
Airdrie’s garage- and garden-suite pages haven’t been updated for the 2024 bylaw amendment, so they publish superseded lot minimums, heights and parking. The bylaw is the authority.
The development permit is $305 (2026), and a basement suite’s building permit is about $0.59 per square foot with a $135 minimum, plus trade permits.
No. Airdrie’s energy program is a loan and excludes suites, and the cancelled federal $80,000 loan never launched.
What people repeat — and what the rule says
The City’s suite pages give the current rules.
Airdrie’s own pages still publish superseded numbers.
Floor areas, heights, lot minimums and parking on the City’s garage- and garden-suite pages were all replaced by the 2024 amendment. Check the land use bylaw, not the summary.
How this page was checked
Verified 20 July 2026, claim by claim — every figure above traced to the instrument it comes from.
Municipal rules and fees change — confirm current terms with the City of Airdrie before committing to a project.
Find out what your Airdrie lot allows
Enter your address and we’ll come back with what your property permits under the current bylaw, what a suite would cost to build, and what it should earn.
- What your lot allows
- What it should earn
- Which programmes apply
Illustrative — your report is built from your own address.