Gilbert requires grading permits for land-disturbing activities. Desert terrain requires careful grading to direct stormwater into retention basins and away from structures. The Flood Control District of Maricopa County standards apply to drainage design. Development must manage stormwater on-site and prevent adverse impacts on neighboring properties.
Gilbert regulates grading and drainage through building and engineering codes. Grading permits required for excavation or fill over specified thresholds, typically 50 to 100 cubic yards. Site grading must direct drainage away from structures and not adversely affect neighboring properties. Drainage swales, French drains, and catch basins may be required. Retaining walls over 4 feet need engineering and separate permits. Compaction testing required for structural fill. Final grade must match approved plans. Property owners responsible for maintaining drainage facilities on their land.
Unpermitted grading: stop-work order and fines $250 to $2,500. Redirecting drainage to neighbors: corrective action required. Slope failure from improper grading: liability and remediation costs.
Gilbert, AZ
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Side-by-side rule comparisons with other cities in Maricopa County.
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