Garage and deck permits in Calgary: when you need one and what it costs

Garages, sheds, gazebos and similar structures

A detached garage or similar building — shed, pergola, gazebo, greenhouse, arbour, workshop, playhouse or detached carport — is an accessory residential building in the Land Use Bylaw. It requires a building permit when it is greater than 10 m² (107 sq. ft.). If it is attached to the house it is not a garage for permit purposes at all; it is an addition, and the addition requirements apply.

A development permit is required on top of that if the accessory residential building is listed as discretionary in your district, if the design or location does not meet Land Use Bylaw rules, or if any of these are true: the garage is higher than 4.6 m (15 ft 1 in); the height from the parking surface to where the wall meets the roof truss is over 3 m (9 ft 10 in); the garage is greater than 75 m² (807 sq. ft.); or the garage will be larger than the existing house.

Every new garage needs a separate electrical permit for lights, outlets and the garage door opener. An existing garage needs one for all new wiring installations and for extending or altering existing branch circuit wiring. Where a contractor does the work, the City states that only a Master Electrician can obtain the electrical permit.

City of Calgary: garage, shed, gazebo and similar structures

What the garage checklist asks for

The City’s application requirement list is specific about the site plan, which is where most resubmissions come from. It has to carry all of the following.

• The address, the property lines, and the streets and back alleys.
• The outline of the garage, the house and every other building on the property, with dimensions of house and garage.
• Distances from the property lines and from the house to the proposed garage.
• Window and door locations and sizes, and the direction of the roof trusses.
• The height from the parking surface to where the wall meets the roof, and from the parking surface to the peak.
• The length and location of the driveway, and the type of garage siding.
• The location and size of any maintenance access, overland drainage or utility rights-of-way, with current copies of any registered on title.
• Beam calculations or manufacturer’s truss layouts, if the roof trusses rest on the garage door.

A modified Real Property Report can be used as the site plan. The checklist also instructs applicants to remove all personal information from plans before submitting.

City of Calgary: garage, shed and gazebo application requirement list (PDF)

Uncovered decks

A building permit is required for a covered deck — one with a pergola or roof — and for an uncovered deck whose surface is higher than 0.6 m (2 ft) above grade at any point. It is also required to rebuild, extend or add stairs to an existing uncovered deck above that height. It is not required for an uncovered deck that is 0.6 m or lower above grade at every point.

A development permit is required when the property is within the floodway or within 6 m of a floodway, or when the deck is at the front of the home, closer than 1.2 m to a side property line, or closer than 6 m to a rear property line. Where planning approval is needed, a public tree disclosure statement goes in with it.

An engineer’s stamped design or review may be required for screw pile foundations, foundations less than 1.2 m below ground, a deck cantilevering more than 600 mm over the beam, a retaining wall taller than 1.2 m, frameless glass railing, composite decking without a CCMC listing, or beams and joists outside the span table limits. The engineer must be registered with APEGA to practise in Alberta.

Add a roof and the job changes category. A roof or pergola attached to the home makes it an addition; one that is not attached makes it an accessory residential building, with the garage requirements above. An outdoor platform attached above the main storey is a balcony, which is also an addition.

City of Calgary: uncovered decks and balconies

City of Calgary: uncovered deck required documents checklist (PDF)

What the City charges

These are the fees the City publishes on the project pages themselves, permit fee plus the 4 per cent Safety Codes Council fee. Fees are increased annually on January 1, so an estimate made in December does not hold for a permit pulled in January.

• New garage: $321 plus $12.84, for $333.84.
• New carport, shed, greenhouse or pergola: $198 plus $7.92, for $205.92.
• Renovation to an existing garage, shed, greenhouse or pergola: $198 plus $7.92, for $205.92.
• New deck or changes to an existing one: $205.92.
• Development permit, where the deck needs one: $550.00.

City of Calgary: garage, shed, gazebo and similar structures

City of Calgary: uncovered decks and balconies

How long each half takes

The City publishes both numbers on both project pages, and the gap between them is the whole scheduling problem on these jobs.

• Building permit: the application is reviewed for compliance with the Land Use Bylaw and safety codes in approximately 7 days. The deck page words it the same way — the review takes about 7 days.
• Development permit, where the structure does not meet all Land Use Bylaw rules: 60 days to decision plus a 21-day advertisement and appeal period, for a total of 10 to 12 weeks.
• Inspection booking is not the bottleneck. For residential improvement projects — decks, basements, garages and suites — the City’s 2026 Q2 figures report a two-business-day booking target met 100 per cent of the time, averaging one day.

All of it is conditional on the same thing: the City states these timelines are not a guarantee and depend on volumes, application completeness and how quickly you answer requests for more information.

City of Calgary: inspection timelines

The inspection, and when your permit dies

A garage normally needs a framing or rough-in inspection with the building at lock-up stage — doors and windows installed, the building secure and the site safe — and where it is built close to the property line, the fire rating must be complete with fire-rated materials installed. A deck is inspected after the structure, hand-rail and stairs are finished, with access to the beams, posts and joists underneath; the inspector issues a pass or a fail, and the deck is not complete until it passes. Building permits expire 180 days from issuance, contractor trade permits and homeowner permits at 330 days.

City of Calgary: garage, shed, gazebo and similar structures