Tree Protection in Orange County, CA (2026)

4 county-level rules, plus city-specific rules for 9 cities in Orange County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Orange County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Tree Removal Permits

Unincorporated Orange County has not adopted a general tree-removal permit requirement; advocates note it is the only county in the six-county SCAG region lacking native-tree protections. A draft Protected Tree permit framework exists but applies only to large parcels in specific-plan canyon areas and is not generally in force.

Orange County Tree Removal Permits

Few Restrictions

Full ordinance details →Official source ↗

Heritage & Protected Trees

Orange County's tree ordinance provides heightened protections for Heritage Trees — mature native trees of significant size, age, or ecological value. Heritage tree removal requires a 5:1 replacement ratio by size and may cost $21,200 or more in mitigation fees.

Orange County Heritage Tree Protections

Heavy Restrictions

Full ordinance details →Official source ↗

Tree Replacement Requirements

When protected tree removal is approved in unincorporated Orange County, the ordinance requires replacement planting at a 3:1 ratio for Specimen Trees and 5:1 ratio for Heritage Trees. Developers must plant more trees than removed or pay increased mitigation fees.

Orange County Tree Replacement Requirements

Heavy Restrictions

Full ordinance details →Official source ↗

Protected Tree Species

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.