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Drainage bylaws in Calgary

Drainage Bylaws ensure correct water use and drainage in and around your property.

The storm drain system in Calgary is a network of catch basins, drains, pipes and ponds designed to channel water from rainstorms or melting snow to the river. Learn more about our stormwater management system.

For an overview of what drainage bylaws mean to you, see the following pages or the view the in-depth resources below:

Report a storm drain issue

To report a storm drain issue, call 311 or fill out the online service request below.

Water - Storm Drain Concerns

Drainage bylaw resources

Bylaws related to drainage
This page has an overview of the drainage bylaws in Calgary, highlights on parts of the bylaw important to homeowners and access to reference guides and brochures. You can also find answers to common questions in our drainage bylaw FAQ.

Bylaws related to storm sewers
This page has an overview of the bylaws related to our storm sewer system, including information on directing storm drainage like downspouts and eaves troughs, and surface drainage facilities like swales and storm drains.

Lot Grading Bylaw
This page has information for builders and homeowners to help make sure a property has a properly graded surface to direct water drainage away from buildings.

Bylaws related to car washing
This page has information about car washing rules as part of the Drainage Bylaw.