Do all Calgary basement bedrooms need egress windows?

Yes, every basement bedroom in Calgary must have an egress window — this is a life-safety requirement under the Alberta Building Code and there are no exceptions. Whether you're finishing a single spare bedroom or developing a full secondary suite, each room designated as a bedroom must provide occupants with a direct escape route to the exterior in case of fire, and it must allow firefighters access from outside.

The Alberta Building Code specifies precise minimums for egress windows: the unobstructed opening must be at least 3.77 square feet (0.35 square metres), with a minimum width of 15 inches (380 mm) and a maximum sill height of 39 inches (1,000 mm) from the finished floor. These dimensions ensure that an adult can physically climb through the opening in an emergency. The window well outside must be large enough to allow a person to stand and escape, and if the well depth exceeds 39 inches, a permanent ladder or steps are required.

Many Calgary homeowners try to skirt this requirement by calling a basement room an "office" or "rec room" instead of a bedroom. The City of Calgary's Safety Codes Officers are well aware of this tactic — if a room has a closet, a door, and is clearly sized and configured as a sleeping space, it will be assessed as a bedroom regardless of what you call it on your plans. Unpermitted bedrooms without egress windows create serious problems: your home insurance may not cover a fire loss, you cannot legally list the room as a bedroom when selling, and most importantly, someone sleeping in that room has no safe way out during a fire.

For older Calgary homes in established neighbourhoods like Inglewood, Kensington, or Hillhurst where basements often have lower ceilings and small windows, meeting egress requirements may require cutting new openings in the foundation — a process that typically costs $2,500 to $6,000 per window including the foundation cut, window, well, and cover. In newer suburbs like Cranston, Panorama Hills, or Auburn Bay, many homes were built with egress-sized rough openings already in place, making the installation significantly simpler and less expensive.

A building permit is required for egress window installation, and the work must pass inspection by a Safety Codes Officer. This is one area where cutting corners puts lives at risk. If you're planning a basement bedroom project, get matched with a basement contractor through Calgary Basement Remodeling for a free estimate.