Permit basics
Do I Need a Building Permit for My Garage?
By Chad Ruppert
When detached garage permits are required, what drawings municipalities ask for, and why accurate plans protect your project.
The short answer
Yes. A building permit is required for most detached garages over 10 square meters, or 107 square feet, in Alberta. The permit confirms the project complies with code and local bylaw requirements.
Most common garages are well over the threshold
A typical double garage is often 20x20, 22x22, or 24x24, which is far larger than the 10 square meter permit threshold. Garages over 592 sq ft may need additional foundation detail or custom drawings.
Why drawings matter
Municipalities use drawings to review size, location, construction details, height, setbacks, and site constraints. Accurate drawings prevent surprises during application and inspection.
A permit protects more than the construction stage
A proper permit record can help avoid issues with resale, insurance, inspections, future renovations, and unpermitted work discovered later.
How garagepermits.ca helps
We prepare the drawings municipalities use to confirm that a detached garage is safe, properly located, and ready for review. That means the permit package is organized around the questions a plans examiner is most likely to ask.
Related permit pages
Keep planning with the right garage permit information.
Calgary garage drawings
Local permit drawing support for Calgary detached garage applications.
Learn moreDetached garage drawing package
See what the standard $695 garage blueprint package includes.
Learn moreOversized garage drawings
Learn when larger garages and workshops need custom drawing support.
Learn moreRelated FAQ
Short answers to common garage permit questions.
Do I need a building permit for a detached garage?
Yes. In Calgary and most Alberta municipalities, a detached garage over 10 square meters requires a building permit before construction begins. The permit drawings show the garage location, size, setbacks, elevations, sections, and construction details for review.
What drawings are required for a detached garage permit?
A detached garage permit usually requires a site plan, floorplan, elevations, cross sections, and construction details. These drawings help the municipality confirm zoning, setbacks, height, lot placement, and building code compliance.
How much do standard garage permit drawings cost?
Standard garage permit drawings start at $695 for detached garages up to 592 square feet. Municipal application and building permit fees are separate and vary by city.
How fast can I get detached garage permit drawings?
Most standard detached garage drawing packages are completed in 2-3 days after the required project information is received. Custom garages, suites, workshops, and unusual sites may need a quoted timeline.
What if my garage is oversized or includes a suite?
Oversized garages, backyard suites, garage suites, and custom garage projects are quoted individually. These projects can require additional design coordination, foundation details, engineering, or deeper municipality review.
What happens if the permit reviewer asks for changes?
If the permit reviewer asks for clarification, the drawing set can be revised to respond to municipal review comments. Most comments involve setbacks, site information, construction notes, or missing details that need to be shown more clearly.
When does a detached garage need a development permit?
A development permit may be required when the garage does not meet land use bylaw rules for setbacks, height, lot coverage, placement, or other site conditions. Many standard detached garages only need a building permit, but the municipality decides based on the property and design.
Permit-ready support
Ready to get your garage drawings moving?
Send the basic project details and we'll help you choose the clearest path: standard package, custom quote, or suite planning. The goal is fewer permit surprises and a drawing set your municipality can review with confidence.