San Diego, CA Landscaping Rules: Tree Trimming (2026)
Key Facts
- Sidewalk Clearance
- 8 feet minimum
- Street Clearance
- 14 feet minimum
- Topping
- Prohibited (state law)
- City Trees
- City contractors only
- Private Trees
- No permit for routine trim
Summary
San Diego requires property owners to trim trees that overhang sidewalks (minimum 8 ft clearance) and streets (minimum 14 ft) per SDMC. Topping trees is prohibited under California state law. City street trees may only be trimmed by the City or authorized contractors.
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, except as provided in subparagraph (B). The amount of fuel modification necessary shall consider the flammability of the structure as affected by building material, building standards, location, and type of vegetation. Fuels shall be maintained and spaced in a condition so that a wildfire would be unlikely to ignite the structure.
Full Breakdown
Property owners in San Diego are responsible for trimming trees on their property that overhang public sidewalks and streets. Minimum clearance is 8 feet over sidewalks and 14 feet over streets. Topping of trees (removing the top of the tree's main stem) is illegal under California statutes and results in structurally unsafe trees. City-owned street trees may only be trimmed by the City of San Diego or authorized contractors; unauthorized trimming of city trees is a violation. For private trees, no permit is generally required for routine trimming and pruning that does not remove more than 25% of the tree canopy. Trees protected under the city's tree regulations (including those within the Multiple Species Conservation Plan areas) have additional restrictions. When trimming results in significant changes to tree structure, consultation with a certified arborist is recommended.
Violations & Fines
Unauthorized trimming of City trees subject to citation and restitution. Topping trees may result in fines. Failure to maintain clearance over sidewalks/streets may result in a notice to comply.
Frequently Asked Questions
Can I trim a tree that overhangs my neighbor's property?
Can I trim a city street tree in front of my house?
Sources & Official References
Other rules in San Diego
California rules heatmap·Compare San Diego to another location·View the California landscaping rules overview
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Tree Trimming in Nearby Cities
How other cities in San Diego County handle tree trimming.