Orange County protects coast live oak, Engelmann oak, California sycamore, and other native trees in unincorporated areas through grading, hillside, and oak woodland conservation provisions tied to CEQA review.
Coast live oak and Engelmann oak woodlands are recognized sensitive habitats under CEQA Public Resources Code 21083.4, which requires mitigation for projects that would convert oak woodlands in unincorporated counties. OC Planning applies these standards to discretionary projects in the foothills and canyons, often requiring tree surveys, root-zone protection during grading, replacement at 1:1 to 3:1 ratios, and conservation easements over preserved acreage. Native sycamore and California black walnut also receive protection in some specific plan areas. State and federal Endangered Species Act protections apply to nesting raptors and migratory birds that may use protected trees.
Removing a protected oak without mitigation can trigger CEQA violation findings, restoration orders, and per-tree civil penalties.
Orange County, CA
Unincorporated Orange County's Protected Tree Ordinance (Section 7-9-69) prohibits cutting, destroying, or removing protected trees with a trunk diameter of ...
Orange County, CA
Orange County's tree ordinance provides heightened protections for Heritage Trees — mature native trees of significant size, age, or ecological value. Herita...
See how Orange County's protected tree species rules stack up against other locations.
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