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Tree Protection in Thousand Oaks, CA (2026)

4 verified tree protection rules for Thousand Oaks, California, sourced directly from the municipal code and official government pages.

Verified from official government sources

Tree Removal Permits

Tree removal in Thousand Oaks requires permits for all Heritage Trees. Applications are reviewed by the Community Development Department, and an arborist report is required. The city denies permits where preservation is feasible.

Thousand Oaks Tree Removal Permits

Heavy Restrictions

Heritage & Protected Trees

Thousand Oaks has one of the strongest Heritage Tree Ordinances in Ventura County, protecting native oaks, sycamores, and California black walnuts. Trees with a trunk circumference of 30 inches or more at 4.5 feet above grade are designated Heritage Trees.

Thousand Oaks Heritage Trees Ordinance

Heavy Restrictions

Tree Replacement Requirements

Thousand Oaks requires replacement plantings when Heritage Trees are approved for removal. Replacement ratios range from 2:1 to 10:1, with long-term monitoring and survival requirements for replacement trees.

Thousand Oaks Tree Replacement Ordinance

Heavy Restrictions

Protected Tree Species

Thousand Oaks Oak Tree Ordinance TOMC Title 5 §5-15 has protected native oaks since 1971, requiring permits for removal, encroachment, or pruning over two inches with strict replacement mitigation.

Oak tree protection Thousand Oaks

Heavy Restrictions

Looking for Ventura County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Thousand Oaks city rules.

Tree Protection in Ventura County