Large garage projects
Custom drawing packages for garages over 592 square feet, workshops, and projects with more complex foundation requirements.
Oversized garages often need a clearer foundation strategy before the permit package is submitted. Common options include a full 4' frost-wall foundation with footings or an engineered slab foundation designed for the garage size, soil assumptions, and intended use.
Many customers choose an engineered slab foundation because it can reduce excavation, concrete, forming, and backfill costs compared with digging a full 4' frost wall. Engineered slab drawings can be added for an additional fee when they make sense for the project and municipality.
Oversized garages, workshops, storage buildings, and hobby spaces can trigger additional municipal review. The drawing package should make the intended use and construction approach clear.
A larger garage can look simple until foundation design, wall height, roof height, vehicle lifts, site placement, or county requirements come into play. Custom quoting helps identify those issues before the permit package is submitted.
Foundation and engineering
For many oversized garages, an engineered slab foundation can be more cost-effective than excavating for a full frost wall. The right choice depends on the garage size, use, municipality, soil assumptions, and whether the permit reviewer needs sealed engineering details.
Shows garage size, door and window locations, slab and wall details, exterior finishes, and core dimensions.
Shows all sides of the garage with roof slope, eave height, peak height, openings, and exterior appearance.
Shows wall height, truss configuration, slab thickness, eave conditions, and assembly details.
Shows property lines, house location, proposed garage placement, setbacks, lot coverage, and registered rights-of-way.
Related planning pages
See local fee, bylaw, setback, and application context for Calgary projects.
Learn moreLearn when garage permits are required and why accurate plans matter.
Learn moreUnderstand how placement, eaves, property lines, and rights-of-way affect approval.
Learn moreFAQ
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.
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.
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.
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.
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.
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.
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
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.
