Livermore, CA Landscaping Rules: Tree Trimming (2026)
Key Facts
- Street Trees
- Public Works permit
- Heritage Oaks
- Permit if >25% canopy
- Private Trees
- No permit routine
- Utility
- PG&E line clearance
- Neighbor Branches
- Trim to line only
Summary
Livermore regulates trimming of street and heritage trees through the Public Works Department; private-property trees generally don't require permits unless protected.
4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line ... Fuels shall be maintained and spaced in a condition so that a wildfire would be unlikely to ignite the structure. ... (2) Remove that portion of a tree that extends within 10 feet of the outlet of a chimney or stovepipe. (3) Maintain a tree, shrub, or other plant adjacent to or overhanging a building free of dead or dying wood.
Full Breakdown
Street trees in the public right-of-way are maintained by Livermore Public Works, which permits resident pruning only with prior approval and ISA-certified arborist work. Heritage and native oak trees may be protected under Livermore's tree preservation policies requiring a permit for significant pruning (over 25% canopy). Routine trimming of non-protected private trees needs no permit. PG&E performs utility-line clearance. Branches overhanging neighbor property may be trimmed to the property line under CA common law (Booska v. Patel), but the trimmer must avoid harming tree health.
Frequently Asked Questions
Can I trim the street tree in front of my Livermore home?
What if my neighbor's tree overhangs my yard?
Sources & Official References
Other rules in Livermore
California rules heatmap·Compare Livermore to another location·View the California landscaping rules overview
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Tree Trimming in Nearby Cities
How other cities in Alameda County handle tree trimming.