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General information on lot grading

What is Lot Grading
By Lot grading, we mean sloping the land within a lot to direct the flow of surface water away from a building’s foundation. The sloping helps in directing water towards a suitable outlet where it can be discharged safely and according to the approved lot grading plan without negatively affecting adjacent properties.

Purpose of lot grading

  • To ensure surface drainage away from structures;
  • To provide for controlled surface drainage discharge points and rate of flow entering the public roads and storm sewer system;
  • To minimize the amount of infiltration from surface run-off entering the sanitary sewage system

Lot Grading Approval Requirement :
At two stages during construction, the builder or homeowner is required to have the lot inspected for grading approval. To make sure the house and lot are constructed in accordance with all requirements, one should be familiar with the procedure for both the rough grade and final grade stages.

Rough Grade Stage
The rough grade stage is the responsibility of the builder. The lot is graded by the builder (contractor) to City/County requirements. Upon completion of the grading, the builder contacts an accredited Alberta Land Surveyor/Professional Engineer to survey the site and prepare and certify the rough grade certificate. Original copy of the rough grade certificate is submitted to the City/County for approval. Upon receipt of the rough grade certificate an inspection is conducted by the City/County's Lot Grading Inspector. If the inspection passes, a copy of the stamped approved grading certificate is sent to the builder or applicant.

Final Grade Stage
Final grade stage is the responsibility of the homeowner. Once the topsoil has been placed and grading completed (according to the applicable lot-grading guidelines), the homeowner must contact an accredited Alberta Land Surveyor/Professional Engineer to provide an as-built survey (or final lot grading certificate). Upon survey completion, Final Lot Grading Certificate fully stamped by Land Surveyor/Professional Engineer is submitted to the City/County for approval. Once received, a lot grading inspection is conducted by the City/County's Lot Grading Inspector. If the grading passes inspection, approved stamped copies of the grading certificate are sent to the homeowner (or the applicant). The homeowner is then able to proceed with landscaping the property. If the inspection fails, the homeowner is notified of the deficiencies (a new survey may be required) and a re-inspection can be scheduled upon correction of the deficiencies.

NOTE
These are general information regarding lot grading. For detail procedure, please read the instructions given on respective City/County web sites. For reference following are the web addresses of City of Edmonton, City of Leduc, City of Spruce Grove, Town of Beaumont, Strathcona County and City of St. Albert respectively.

http://www.edmonton.ca/for_residents/flooding_sewers/lot-grading-approvals-residential.aspx
http://www.leduc.ca/
http://www.sprucegrove.org/services/permits_licences/lot_grading.htm
http://www.town.beaumont.ab.ca/pages.php?pg1=1005&pg2=2006&pg3=3006&pg4=4009 http://www.strathcona.ca/lot-grading-res.aspx
http://www.stalbert.ca/

 
 
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