You'll need a mandatory permit ($333.84 for new installations) to install a basement egress window in Calgary. Your window must have an unobstructed opening of 3.77 square feet, with no dimension smaller than 15 inches. Install window wells 30 inches from the foundation wall, with a 760mm clearance in front. Make certain sill height doesn't exceed 1.5 meters from the floor. Understanding these specifications is just the initial step in meeting Calgary's thorough regulations.
Key Takeaways
- Calgary requires a mandatory building permit for basement egress window installations, with fees starting at $333.84 for new installations.
- Basement windows must have a minimum unobstructed opening of 3.77 square feet, with no dimension smaller than 15 inches.
- Window well installations must extend 30 inches from foundation walls and include 6 inches of drainage rock at base.
- Window sill height cannot exceed 1.5 meters from the floor and must allow tool-free operation from inside.
- Permit applications require elevation drawings, setback compliance, and must pass post-installation inspections to verify code adherence.
Understanding Basement Window Permit Requirements

When installing a new basement egress window in Calgary, you'll need to obtain a mandatory permit that complies with both local regulations and the Alberta Building Code. Your window must meet minimum requirements, including an unobstructed opening of 3.77 sq. ft. with no dimension smaller than 15 inches.
To secure your permit, you can submit your application online or in person. You'll need to provide elevation drawings and guarantee your installation adheres to side setback regulations, which allow a maximum projection of 0.8 meters.
Window wells must be carefully planned within these parameters. The city will review your complete documentation package and may issue a notification of refusal within 90 days if your submission is incomplete.
Following these requirements helps guarantee your basement renovation project proceeds smoothly and meets all safety standards.
Essential Measurements and Size Specifications
To guarantee safe egress during emergencies, your basement windows must meet Calgary's strict dimensional requirements. The minimum unobstructed opening area must be 3.77 square feet, with no dimension less than 15 inches. You'll need to verify your window's sill height doesn't exceed 1.5 meters from the floor.
Component | Measurement | Regulation |
---|---|---|
Opening Area | 3.77 sq ft | Minimum |
Window Dimension | 15 inches | Minimum |
Well Clearance | 30 inches | From foundation |
Side Setback | 0.8 m | Maximum |
When installing window wells, maintain a 760 mm clearance in front of the window. Remember, you'll need a building permit for new installations or modifications. These specifications aren't just guidelines—they're crucial safety requirements that protect your household while guaranteeing compliance with Calgary's building codes.
Window Well Design and Installation Standards

Proper window well installation demands strict adherence to Calgary's extensive design standards.
You'll need to verify your window wells extend a minimum of 30 inches from the foundation wall to comply with safety regulations. When installing egress windows, you must maintain a clear space of at least 760 mm (2 ft 6 in) in front of the window.
If your window well's depth exceeds 44 inches, you're required to install permanent ladders to facilitate emergency exits.
Don't forget to include a minimum of 6 inches of drainage rock at the well's base for proper water management.
The National Building Code requires window wells where they're currently absent, and a permit may be required before installation.
Safety Compliance and Building Code Guidelines
Since Calgary strictly enforces basement window regulations, you'll need to confirm your egress windows meet specific safety requirements. Your windows must provide an unobstructed opening of 3.77 square feet with minimum dimensions of 15 inches to comply with Alberta Building Code standards.
Requirement | Specification |
---|---|
Opening Area | 3.77 sq ft minimum |
Sill Height | 1.5m max from floor |
Well Depth | 30" from foundation |
Operation | Tool-free from inside |
When installing basement windows in Calgary, you'll need to verify your window wells have proper drainage and meet accessibility criteria. Keep in mind that compliance isn't optional – all new installations require a permit and must adhere to safety standards. Your egress windows should open easily from inside without special tools, allowing quick escape during emergencies. These requirements protect your household while keeping you aligned with local building codes. Installing energy-efficient windows can significantly reduce your utility costs while meeting safety requirements.
Professional Installation Vs DIY Considerations

Building code compliance leads directly to the question of professional versus DIY window installation.
While you might be tempted to tackle the project yourself, professional installation guarantees your egress requirements meet Alberta Building Code specifications, including the mandatory 3.77 sq. ft. opening and proper window well drainage.
Professional installation ensures your egress windows comply with building codes and safety standards, protecting both your investment and your family's safety.
DIY installations can put you at risk of non-compliance, as permits must be obtained and detailed drawings are required.
You'll want certified contractors who understand city permit requirements and safety standards. They'll assure your compliant egress window meets all specifications, backed by warranties covering workmanship and materials.
Professional installers help you avoid costly mistakes and potential safety hazards that could require expensive corrections later.
Cost Breakdown and Permit Fee Structure
Three distinct permit fees structure the cost of basement window installations in Calgary.
You'll need a building permit fee of $333.84 for new window installations, which includes a 4% safety codes council fee on the $321 base fee.
If you're renovating existing windows, you'll pay a reduced permit fee of $205.92, calculated from a $198 base fee plus safety codes charges.
For any electrical or plumbing work related to your window installation, you'll require a trade permit costing $116.50, which includes the safety codes fee.
When submitting your permit application, make certain it's complete with all required documentation, including elevation drawings for windows facing side property lines.
Incomplete applications will receive a refusal notice, though you'll have 30 days to resubmit the necessary materials.
Inspection Process and Final Approval Steps
Once you've secured your permits and paid the required fees, scheduling proper inspections becomes the next major milestone in your basement window project.
You'll need to guarantee all window installations, along with any related plumbing and electrical work, are complete before requesting inspections.
Monitor your permit application status regularly, as processing times vary depending on submission completeness.
If you need to modify your original application, submit the necessary updates before scheduling inspections.
The inspection process verifies compliance with building codes through both framing and final inspections.
Upon passing all required inspections, you'll receive written notification of final approval.
This document confirms your basement windows meet all regulatory requirements.
Keep this documentation for your records, as it's crucial proof of your project's compliance with Calgary's building standards.
Frequently Asked Questions
What Is the Legal Basement Window Size in Calgary?
Your basement window must meet legal requirements of 3.77 square feet minimum opening size, with no dimension under 15 inches. For sliding windows, you'll need 44"x33" or 48"x30", while casement windows require 31.5"x31.5" minimum.
What Size Window Do You Need in a Basement?
You'll need an egress window with a minimum opening of 3.77 square feet and 15-inch dimensions. For casement styles, install 31.5"x31.5", or for sliding windows, choose 44"x33" or 48"x30" to meet safety requirements.
What Is the Minimum Size for an Egress Window in a Basement?
For building code compliance, you'll need an egress window with a minimum unobstructed opening of 3.77 square feet, and no dimension less than 15 inches. This guarantees proper emergency escape routes in your basement.
Can You Put Bigger Windows in a Basement?
You can install bigger windows in your basement to improve natural light and home value, but you'll need a building permit and must guarantee the installation meets safety standards and building codes for proper ventilation.
Last Words
Compliance with Calgary's basement window regulations isn't optional – it's a legal requirement that protects your safety and property value. You'll need to guarantee your windows meet minimum egress dimensions of 3.77 sq ft, maintain proper well depths of 36 inches, and obtain necessary permits before installation. Remember to schedule both rough-in and final inspections to verify all installations meet the Alberta Building Code standards.