Thousand Oaks hillside protection standards within the Conejo Development Code limit grading, ridgeline silhouette intrusion, and density on slopes over 15 percent across the Conejo Valley.
The CDC Hillside Performance Standards apply to parcels with slopes over 15 percent, particularly on the southern slopes facing the Santa Monica Mountains and northern hills near Wildwood. Standards limit cut-and-fill grading, require structures to step with topography, restrict ridgeline silhouette breaks, and reduce allowable density on steeper terrain. Pad sizes and retaining wall heights are capped. COSCA boundaries layer additional open-space protections. Custom homes on hillside lots typically need Planning Commission design review and biological surveys for sensitive species and oak trees.
Grading without permit triggers stop-work orders and double permit fees. Unpermitted ridgeline structures may require demolition or significant redesign at owner expense.
Thousand Oaks, CA
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Thousand Oaks, CA
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Thousand Oaks, CA
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See how other cities in Ventura County handle hillside overlay rules.
See how Thousand Oaks's hillside overlay rules rules stack up against other locations.
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