Thousand Oaks, CA Landscaping Rules: Tree Removal & Heritage Trees (2026)
Tree removal permit rules in Thousand Oaks, CA, sometimes called heritage tree, protected tree, or street tree ordinances, list which trees require a permit before you can cut them down.
Key Facts
- Protected zone
- 5 ft beyond dripline, minimum 15 ft from trunk
- Administrative approval
- Up to 3 trees under 24" diameter, no hearing
- Planning Commission review
- 4+ trees, or any tree ≥24" diameter
- Exempt trees
- Under 2" diameter, deadwooding, nursery stock
- Unpermitted removal penalty
- Misdemeanor + replant 2+ replacement oak trees
Summary
In Thousand Oaks, cutting, removing, relocating, or encroaching into the root-protection zone of any oak tree, on public or private property, requires a City-issued oak tree permit. Small requests are decided administratively by the Community Development Director, while larger removals go to the Planning Commission after a public hearing. Removing or damaging a protected oak tree without a permit is a misdemeanor and can trigger a mandatory replanting requirement.
(a) Permit required. No person shall cut, remove, encroach into the protected zone, or relocate any oak tree on any public or private property within the City, unless a valid oak tree permit has been issued by the City pursuant to the provisions of this chapter and the oak tree preservation and protection guidelines.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-78: 2026 S-78 Supplement contains: Current city legislation passed through March 31, 2026).
Full Breakdown
The oak tree "protected zone" runs 5 feet beyond the tree's dripline and is never less than 15 feet from the trunk (§9-4.4202). Requests to remove three or fewer non-exempt oak trees under 24 inches in diameter can be approved administratively by the Community Development Director without a hearing (§9-4.4206(a)(1)); removing four or more trees, or any tree 24 inches or larger, requires a Planning Commission hearing (§9-4.4206(a)(2)). Narrow exemptions exist for trees under 2 inches in diameter, deadwooding, fire-department emergency removal, and nursery stock (§9-4.4205). Violators face a misdemeanor charge plus mandatory restitution, typically replanting two or more equivalent-size oak trees, with the number and location set by the Community Development Director (§9-4.4209).
Violations & Fines
Cutting, damaging, moving, or removing an oak tree, or encroaching into its dripline, without a permit is a misdemeanor under TOMC §9-4.4209(a), punishable per Title 1, Chapter 2. The City can also issue a stop-work notice (§9-4.4209(b)) and require restitution by planting two or more replacement oak trees of equivalent size and value (§9-4.4209(c)).
Frequently Asked Questions
Do I need a permit to trim my own oak tree in Thousand Oaks?
What happens if I cut down a protected oak tree without a permit?
Sources & Official References
Other rules in Thousand Oaks
California rules heatmap·Compare Thousand Oaks to another location·View the California landscaping rules overview
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