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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 drainage swale down the
common property line 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 Planning and
Development Department 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):
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