Grading permits are required from LADBS for earthwork exceeding certain thresholds. The city conditions grading permits on stormwater pollution control compliance per LAMC 91.106.4.1. Hillside areas have enhanced grading standards under the Baseline Hillside Ordinance. Drainage must not direct water onto neighboring properties. A geotechnical report is typically required for hillside grading.
Los Angeles 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.
Los Angeles, CA
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle grading & drainage.
See how Los Angeles's grading & drainage rules stack up against other locations.
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