Main page content begins here

Lot grading with substantial grade differences, from the side of the house to the rear of the house, usually occurs on walk-out basements.

Grading approval for these homes may require retaining walls at the rear corners of the house, or on the side lot. These retaining features are usually indicated on the plot plan.

The grading of the common property drainage swale must allow for 10% slope from the foundation walls of adjacent houses, and must provide drainage functionality for both properties.

Any retaining wall that exceeds 0.6 m in height, or is attached to the house, should attach an engineered design. A permit or design requirements can be obtained from Sustainable Development of the City of Edmonton. Call 311 for details.

The following pictures and diagram are the examples for the requirements to deal with grade differential (for reference only):

large grade differential

These 2 lots have a large grade differential

retaining wall attached to the walkout basement

A retaining wall attached to the walkout basement

This walkout basement needs retaining walls

This walkout basement needs retaining walls

This is an engineered retaining wall design example

This is an engineered retaining wall design example

For More Information

Development Services, Lot Grading

2nd Floor, Edmonton Tower
10111 104 Avenue NW
Edmonton, AB

T5J 0J4

Telephone

311 or 780-496-5576

Fax 780-496-2865
Email lot.grading@edmonton.ca

End of page content. Please choose between the following five options:

Back to main menu Back to current page menu and content View current page breadcrumb Back to site search Continue to page footer content