Tree Protection in Ventura County, CA (2026)

3 county-level rules, plus city-specific rules for 10 cities in Ventura County, California.

Verified from official government sources

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

Tree Removal Permits

Unincorporated Ventura County requires a tree permit to remove or significantly alter a protected tree under the Tree Protection Ordinance (NCZO 8107-25 / CZO 8178-7). Ministerial permits cover smaller work; discretionary permits need an arborist report. Removals require mitigation under the County's Tree Protection Guidelines.

Ventura County Tree Removal Permits

Heavy Restrictions

Full ordinance details →Official source ↗

Heritage & Protected Trees

Ventura County Zoning Ordinance §8107-25 protects all oaks and sycamores 9.5 inches in circumference or larger (measured at 4.5 feet above ground), trees of any species with a historical designation, and any tree 90 inches or more in circumference. No protected tree may be altered, felled, or removed without a Tree Permit.

Ventura County Tree Protection Ordinance

Heavy Restrictions

Full ordinance details →Official source ↗

Tree Replacement Requirements

Ventura County requires replacement plantings when protected oak trees are removed in unincorporated areas. Replacement ratios range from 3:1 to 10:1 depending on tree size and significance, with monitoring requirements of 5-7 years.