Folsom grading permits are required for earthwork exceeding specific thresholds under FMC Title 14 and the California Building Code Appendix J. Drainage must not be diverted onto neighboring property. Hillside projects near the American River face additional scrutiny.
A grading permit from Folsom Community Development is required for excavation or fill exceeding 50 cubic yards, a cut or fill slope over 5 feet in height, or any grading in a floodplain or on slopes steeper than 3:1, per FMC Title 14 and California Building Code Appendix J. Applications must include a grading plan prepared by a licensed engineer for larger projects, a drainage analysis, and an erosion control plan. Drainage cannot be concentrated and discharged onto adjacent private property — California common law and city standards require maintaining historic drainage patterns or routing runoff to an approved public system. Hillside projects within the Folsom Hillside Development Standards area adjacent to the American River Parkway undergo additional geotechnical and habitat review. Inspection phases include pre-grade meeting, rough grade, and final certification.
Grading without permit: stop-work, double fees, potential misdemeanor under Appendix J §J103.
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