What Are Garage Size Limits Under Calgary Zoning Rules?
Calgary Garage Size Limits & Zoning Requirements
Detached Garage Size Limits
Most Calgary single-family residential lots fall under R-1 or R-2 zoning. In these zones, detached garages are classified as accessory buildings and must comply with:
- Maximum lot coverage: 40% of total lot area (including main house)
- Typical maximum size: 24×24 ft (576 sq ft) on standard lots
- Height limit: 32 feet to peak
- Setbacks: 25 ft from front property line, 7.5 ft from side lines, 10 ft from rear
Attached Garage Rules
Attached garages (integral to the house) have fewer restrictions:
- No separate lot coverage limits
- Must comply with front, side, and rear setbacks
- Height matches house roofline (typically 20–28 ft)
- Standard two-car garage: 20×20 ft minimum
Small Accessory Buildings Exception
Structures under 108 square feet may be exempt from City of Calgary permits, though setback rules still apply. This rarely accommodates functional garages.
Calgary Zoning Variations
Different zones impose different limits:
| Zone Type | Lot Coverage | Max Height | Common Use |
|---|---|---|---|
| R-1 | 40% | 32 ft | Single detached home |
| R-2 | 40% | 32 ft | Low-density residential |
| R-C2 | 60% | 40 ft | Multi-unit residential |
Permit & Cost Considerations
Calagary requires a development permit for detached garages over 108 sq ft. Typical costs:
- Development permit: $200–$400
- Inspection fees: $150–$300
- Build time: 6–8 weeks for permit approval
Next Steps
Before finalizing garage plans, verify your specific lot zoning and existing structures. Small variations in setback or coverage can block approval. OAF Construction has completed 200+ garage projects across Calgary and knows exactly what the City will accept.