Ventura, CA Environmental Rules: Grading & Drainage (2026)

Grading in Ventura is governed by CBC Appendix J (Title 24, Part 2, adopted by the City) and SBMC building/public-works provisions. A grading permit is required for: cut/fill exceeding 50 cubic yards; any cut more than 5 feet in depth or fill more than 3 feet in vertical depth (lower thresholds apply near property lines and within the coastal zone); any grading that alters drainage onto neighboring property. Applications must include a topographic survey, engineered grading and drainage plan stamped by a California civil engineer, geotechnical report for hillside or expansive-soils sites, erosion and sediment control plan, and stormwater BMP plan. Civil Code §1009 and California common law impose liability on owners who divert surface water onto adjoining property; post-development drainage must be conveyed to an approved natural watercourse or public storm drain. Cuts and fills must meet slope limits (typically 2:1 horizontal:vertical max) unless slope-stability analysis supports steeper grades. Within the coastal zone, grading requires a Coastal Development Permit in addition to the grading permit. Inspections include rough grading, drainage testing, and final stabilization sign-off.