Basement Development in Calgary and Legal Suite
Calgary Home Development develops basements for homeowners in Calgary, Airdrie, Cochrane, Chestermere and Okotoks, from finished family rooms and home offices to legal secondary suites. We prepare permit-ready plans, work with the City of Calgary on approvals, and give you a written estimate after a free on-site visit.
Call +1(825) 449-3483 or request your free quote.
Our basement development services
We offer full basement development solutions, including:
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Open-concept basement layouts
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Home theaters & entertainment rooms
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Basement bathrooms & wet bars
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Guest suites & rental-ready spaces
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Flooring, lighting, insulation & drywall
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Legal secondary suites, including plans, permits and inspections
Do I need a permit to develop my basement in Calgary?
In most cases, yes. The City of Calgary requires a building permit when a basement is developed for the first time, and for changes like moving walls or adding windows and doors. Electrical and plumbing work need their own permits. Cosmetic updates like paint and finishes to an already-developed basement usually don’t. A development permit (planning approval) is only needed when your design doesn’t meet the Land Use Bylaw. We confirm what applies to your home during your free quote.
Legal Basement Suite Permits in Calgary
A legal basement suite is a secondary suite that has been permitted and inspected to meet Alberta safety codes. A basement with a full kitchen and bathroom counts as a secondary suite, so it needs the suite permits. A wet bar is allowed, as long as it has no cooking equipment.
What the City looks for:
- A self-contained suite with its own kitchen, bathroom, sleeping and living areas, and a private entrance
- Smoke-tight separation from the main home, interconnected smoke and carbon monoxide alarms, and soundproofing
- At least one exit directly outside, and egress windows in each bedroom
- Independent heating and ventilation
- Two inspections: framing and final
What we handle for you:
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Zoning verification and compliance review
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Preparation of permit-ready construction drawings
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Building permit applications
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Coordination with City of Calgary inspectors
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Fire separation and safety code compliance
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Proper egress windows and ventilation requirements
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Electrical, plumbing, and mechanical inspections
How our basement development process works
Consultation and planning.
Design and material selection.
Renovation execution.
Final inspection and handover.
How much does basement development cost in Calgary?
The cost depends on size, finishes, whether you add a bathroom or kitchen, and whether you build a legal suite. Finished basements typically start at $7500 . Every project begins with a free on-site quote and a written estimate. Financing is available through our lending partner on approved credit.
How long does basement development take?
a finished basement takes about 2 weeks and a legal suite about 4. We confirm the schedule in your written estimate. Permit review times set by the City can affect suite projects.
Why Develop Your Basement?
Increase usable living space
Boost property value
Improve energy efficiency
Create Legal Rental Income Potential
Why Develop Your Basement?
See our Briar Hill NW basement development and browse the Basement Gallery.
Basement development financing
Develop your basement now and pay monthly through our lending partner, on approved credit. We give you a free on-site quote first, so you know the amount before you apply.
Renovate now with flexible monthly payment options. Fast approval.
Kitchen renovation financing
Renovate now and pay monthly. Financing is offered through our lending partner on approved credit, with a free on-site quote first so you know the exact amount before you apply.
Renovate now with flexible monthly payment options. Fast approval.
Request a free basement development quote
Tell us about your basement and we’ll reply within 24 hours on business days. Or call +1(825) 449-3483, Monday to Friday, 8:00 am to 6:00 pm.
Ready to Renovate your Home
Basement development FAQ
- Usually yes. A building permit is required for first-time basement development, plus separate electrical and plumbing permits.
- What is a legal basement suite? A secondary suite that has been permitted and inspected to Alberta safety codes. It has its own kitchen, bathroom, sleeping area and private entrance.
No. A basement with a kitchen and bathroom needs secondary suite approval. A wet bar without cooking equipment is allowed.
In many cases, yes. It depends on the scope. We discuss this during planning and take steps to limit disruption.
Yes. We assist with layout planning, cabinets, countertops, finishes and fixtures.
Yes. The on-site quote is free and carries no obligation.
Yes, through our lending partner on approved credit.

