Build a Legal Suite in Calgary the Right Way the First Time
OAF Construction has completed over 200 legal suites across Calgary, holds a 4.9★ HomeStars rating with Best of HomeStars 2024 & 2025, and writes a fixed-price contract on every project. If you are searching for a legal suite Calgary builder who will hand you one number, pull every permit, manage every inspection, and finish on schedule, you are in the right place. Every legal suite we build is designed to clear City of Calgary occupancy on the first inspection and qualifies for the $10,000 Secondary Suite Incentive Program (SSIP) grant.
What’s Included in a Legal Suite Build
Every fixed-price legal suite contract from OAF includes:
- Development Permit and Building Permit applications, prepared and submitted by us
- Engineered drawings (architectural, structural, electrical, mechanical) stamped by an Alberta-licensed professional
- Separate, code-compliant suite entrance (interior or exterior depending on configuration)
- Full kitchen with cooking appliances, ventilation hood ducted to exterior, and dedicated circuits
- Bedroom(s) sized to code with egress windows
- Bathroom with tub or shower, vanity, and exhaust ventilation
- Fire-rated separation between suite and main dwelling (drywall, doors, sealing)
- Interconnected smoke and carbon monoxide detectors on both levels
- Separate heating zone or dedicated furnace where required
- All Calgary inspections coordinated and passed (framing, insulation, electrical, plumbing, gas, occupancy)
- SSIP grant application prepared and submitted on your behalf
- five-year workmanship warranty
You sign one contract. We deliver a finished, inspected, legally rentable suite.
Real Calgary Legal Suite Pricing in 2026
Realistic 2026 pricing for fully permitted, code-compliant legal suite Calgary projects:
| Suite Type | Square Footage | Fixed Price Range |
|---|---|---|
| 1-bedroom basement legal suite | 600 to 750 sq ft | $58,000 to $78,000 |
| 2-bedroom basement legal suite | 800 to 1,000 sq ft | $75,000 to $98,000 |
| Premium legal suite (upgraded finishes) | 800 to 1,100 sq ft | $95,000 to $118,000 |
| Full underpinning + legal suite (low ceilings) | 800 to 1,100 sq ft | $115,000 to $136,500 |
The total range across our portfolio runs $58,000 to $136,500. The biggest cost drivers: existing ceiling height (anything under 6’5” may need underpinning), whether a separate exterior entrance already exists, mechanical scope (new furnace, HRV, separate hot water), and finish level. Subtract $10,000 for the SSIP grant on every project that qualifies.
Our Legal Suite Process in Calgary
- Free 30-minute consultation. On-site or Zoom. We measure ceiling height, walk the basement, check egress, and confirm your land use district permits a secondary suite. Council voted to repeal blanket rezoning on April 8, 2026 (effective August 4, 2026), with a July 21, 2026 hearing expected to keep secondary suites permitted in all low-density districts. We run the live Land Use Bylaw lookup against your specific address before quoting, so you know exactly where you stand.
- Fixed-price quote. Detailed line-item proposal within 5 to 7 business days. One number, no T&M, no allowances.
- Permits. OAF prepares the Development Permit and Building Permit packages and submits both. Typical turnaround 6 to 10 weeks depending on Planning queue.
- Construction. Framing, mechanical rough-in, fire separation, drywall, finishes, fixtures. Typical build 8 to 14 weeks for a basement legal suite.
- Inspections. OAF coordinates every Safety Codes Council inspection. We are on-site for each one.
- Occupancy permit. The City issues a Suite Approval letter when the final inspection passes.
- SSIP claim. We submit the grant package. Reimbursement typically arrives 4 to 8 weeks later.
End to end: 4 to 7 months from first call to legal occupancy.
Why OAF for Your Legal Suite
- 200+ legal suites completed in Calgary. This is our specialty, not a side service.
- Fixed-price contracts. Every quote. Every project. The number we sign is the number you pay.
- In-house team. Our framers, electricians, and plumbers are T4 employees on staff, not subcontractors we met yesterday.
- WCB covered, $5M liability insured. Worker injuries and site damage are never your liability.
- SSIP-experienced. We have shepherded the $10,000 grant through for every eligible client. Consistent SSIP approvals on every eligible project.
Frequently Asked Questions
Is my Calgary property zoned for a legal suite? Calgary’s zoning rules are in transition. 2024’s blanket rezoning made most residential lots (R-CG, R-G, R-1, R-1N, R-2) suite-eligible. On April 8, 2026, Council voted to repeal blanket rezoning effective August 4, 2026 — but a separate motion at the July 21, 2026 public hearing is expected to keep secondary suites permitted as a use in all low-density districts. Heritage and direct-control districts have always had additional restrictions. OAF runs a free live Land Use Bylaw lookup against your specific address during the consultation, so you know exactly what current rules apply before you spend on design.
How long does a legal suite take to build in Calgary? A typical basement legal suite takes 8 to 14 weeks of construction once permits are issued. Permits themselves take 6 to 10 weeks at the City of Calgary Planning desk. Total elapsed time from signed contract to occupancy is usually 4 to 6 months. Underpinning projects (raising the basement floor) add 4 to 6 weeks.
What is the SSIP grant and do I qualify? The Secondary Suite Incentive Program is a City of Calgary grant of up to $10,000 toward a legal suite in your primary residence. To qualify, the property must be your primary residence, the suite must be long-term rental (no Airbnb for 2 years), and the work must be permitted and inspected. OAF prepares and submits the application as part of every eligible project.
What about the Dec 31 illegal suite amnesty? Calgary is running an amnesty for existing illegal (unpermitted) basement suites. Until December 31, owners can bring an illegal suite to legal status without penalty. After that date, enforcement and fines resume. If you have an unpermitted suite, this is the window. OAF handles legalization projects under the same fixed-price model.
Can I use the SSIP grant and still rent on Airbnb? Not for the first two years. The SSIP carries a 2-year long-term-rental requirement. After 2 years you may convert to short-term rental with a City business licence. If short-term rental from day one is the priority, you can build the suite without claiming SSIP and keep full flexibility. We will quote both scenarios.
Does OAF build legal suites outside Calgary? Yes. We take legal suite projects in Airdrie, Cochrane, Chestermere, and Okotoks. The build process is similar but each municipality has its own permit framework. The SSIP grant is Calgary-only. We will tell you on the consultation what incentive (if any) applies in your municipality.
Related OAF Resources
- Legal Suite Development service overview
- How much does a legal basement suite cost in Calgary in 2026?
- Legal vs illegal suites: what Calgary owners need to know
- SSIP grant eligibility checker
- Calgary basement development permit process
Get Your Fixed-Price Legal Suite Quote
Stop comparing T&M estimates that swing $20,000 between contractors. Get a Free Quote and OAF will pull your land use district, measure the basement, and quote a fixed price on a real legal suite Calgary build, SSIP grant included.