What Are Basement Egress Window Requirements in Calgary?
Egress Window Code Requirements in Calgary
The Alberta Building Code mandates egress windows in all sleeping areas of basements. Calgary’s building permit system enforces these standards strictly during inspection.
Minimum Specifications
- Opening area: Minimum 0.05 m² (approximately 540 square inches)
- Sill height: Maximum 1.1 metres from floor level
- Opening diameter: Must accommodate a 0.6 m sphere to ensure safe emergency exit
- Operational: Window must be operable from inside without tools
Egress Well Requirements
When an egress window sits below grade, Calgary code requires:
- Properly constructed egress well with minimum 0.5 m depth below window sill
- Sloped floor or sump drainage (minimum 2% grade toward drain)
- Grate or cover designed for emergency exit (removable or hinged)
- Clear passage to grade level
- Minimum 0.5 m horizontal clearance from well to building
Permit and Inspection Process
The City of Calgary requires:
- Permit application before installation
- Rough-in inspection after window installation
- Final inspection confirming code compliance
- Documentation of egress well drainage design
Installation Costs in Calgary
| Component | Cost Range |
|---|---|
| Single egress window + frame | $800–$1,500 |
| Egress well installation | $1,500–$3,500 |
| Drainage system (sump) | $800–$1,800 |
| Permit fees (City of Calgary) | $150–$300 |
| Total project (typical) | $3,250–$7,100 |
Why This Matters
Basements without compliant egress windows cannot legally serve as bedrooms in Calgary. Mortgage lenders often require certification. Emergency responders depend on egress windows during fires.
Contact OAF Construction to ensure your Calgary basement meets all code requirements.