Build With Certainty. Not Surprises.
Fixed-price residential construction in Calgary. Basements, legal suites, garages, and tenant improvements — built to a higher standard.
What We Build
Lifestyle Basement Development
Transform unused space into entertainment areas, home theatres, gyms, and guest suites.
- Custom design
- Full permit handling
- Fixed-price guarantee
Legal Secondary Suites
Income-generating suites built to Calgary bylaws with full city permitting and inspections.
- SSIP registered
- City-permitted
- Rental-ready
Garage Construction
Detached and attached garages, garage suites, and backyard builds engineered for Calgary.
- Engineered foundations
- Heated options
- Suite-ready rough-in
Tenant Improvements
Commercial build-outs for retail, office, and restaurant spaces across Calgary.
- Commercial permits
- Landlord coordination
- Fast turnaround
See the Difference
BEFORE Our Process
Consultation
Free on-site visit. We walk the space, understand your vision, and assess the scope — no obligation.
No pressure. No cost.Fixed-Price Proposal
You receive a detailed, itemized proposal with a fixed price. What we quote is what you pay.
No surprise costs. Ever.Permits & Build
We handle all City of Calgary permits, inspections, and construction. You get weekly progress updates.
Fully permitted. Fully insured.Handover
Final walkthrough, punch list completion, and handover with all warranty documentation and permits.
Built beyond code.The OAF Standard
Every project we take on starts with one question: will this stand up to Calgary? Not just to code — to the reality of chinook cycles that swing 30 degrees in a day, frost lines that reach four feet deep, and clay soils that shift with every season.
We've built over 200 residential projects across this city. Basements in Killarney where the water table sits high. Legal suites in Tuscany where the grade slopes toward the foundation. Garages in Auburn Bay where the soil report reads like a geology textbook. Every one of those builds taught us something — and every lesson is baked into how we work today.
"We don't build to code. We build beyond it."
Fixed-price means you know the number before we break ground. It means our margin is our problem, not yours. It means we measure twice, order once, and never show up at your door asking for more money because we "didn't expect" something that any experienced Calgary builder should have planned for.
The OAF Standard is simple: permit everything, inspect everything, document everything. Your project gets a dedicated permit set filed with the City of Calgary, scheduled inspections at every stage, and a final handover package with every warranty, every drawing, and every sign-off in one place. That's the floor. We build up from there.
What Our Clients Say
They quoted us a fixed price for our basement development and stuck to it — to the dollar. The crew was professional, the site was always clean, and they handled every permit and inspection without us having to chase anything.
We had three other contractors quote our legal suite. OAF was the only one who walked us through the full permit process upfront. No surprises during the build, and the final inspection passed first time.
Our garage build came in exactly on the timeline they promised. What impressed us most was the communication — weekly updates with photos. You could tell they actually cared about getting it right.
Up to $45,000 in Grants for Your Suite
Calgary homeowners can stack two programs: the $10,000 SSIP for basement suites and the $35,000 Backyard Suite Incentive (launched March 2, 2026) for laneway and garden suites. OAF is a registered builder for both — we handle the applications as part of your project.
Builds take 10–14 weeks. To claim the SSIP grant before the deadline, construction should begin by June 2026. Spots are limited — once our schedule fills, we cannot take on additional projects.
Common Questions
It means the price we quote is the price you pay. No change orders, no allowances that mysteriously run out, no "we didn't expect this" conversations. Our quote includes materials, labour, permits, inspections, and project management. If we miss something in our estimate, that's our cost — not yours.
Our lifestyle basement developments start at $45,000 for a standard layout with one bedroom, bathroom, and living area. The final price depends on square footage, number of rooms, and finish level. Legal suites (with separate entrance, kitchen, and egress) start at $58,000 due to the additional plumbing, electrical, and permit requirements.
Yes. The City of Calgary requires a development permit and building permit for any basement finishing that includes bedrooms, bathrooms, or changes to the building envelope. We handle the entire permit process — application, drawings, submissions, and all inspections through to final occupancy.
The Secondary Suite Incentive Program (SSIP) provides up to $10,000 to Calgary homeowners who build a legal secondary suite. You qualify if your home is in Calgary, the suite meets all building codes, and construction is completed before the program deadline (September 2026). OAF is a registered SSIP builder — we handle the application as part of your project.
A standard lifestyle basement takes 8–12 weeks from permit approval to handover. Legal suites take 10–14 weeks due to additional inspections. Permit processing with the City of Calgary typically takes 2–4 weeks before construction begins. We provide a detailed timeline in your fixed-price proposal.
Yes — every permit, every inspection, every piece of paperwork. We submit development permit and building permit applications, schedule all required City of Calgary inspections (framing, plumbing, electrical, insulation, final), and don't consider a project complete until final occupancy is granted.
We serve all Calgary neighbourhoods and surrounding communities. Our most active areas include Tuscany, Auburn Bay, Cranston, Mahogany, Legacy, Killarney, Altadore, and Airdrie. We also take on projects in Cochrane, Chestermere, and Okotoks for the right scope.
Yes. OAF Construction Corp. holds a City of Calgary business licence, is WCB-covered (Workers' Compensation Board), and carries $5 million in commercial general liability insurance. We are a registered SSIP builder with the City of Calgary. Proof of insurance is available on request.
Within one business day, we'll call to schedule a free on-site consultation at your home. During the visit, we walk the space, discuss your vision and budget, and answer any questions. Within 5 business days of the consultation, you receive a detailed fixed-price proposal — no obligation to proceed.
Ready to Build?
Tell us about your project. We'll call within one business day to schedule your free consultation.