Tree Trimming: Altadena vs Carson
How do tree trimming rules compare between Altadena, CA and Carson, CA?
Altadena and Carson have similar restriction levels.
Altadena, CA
Los Angeles County
Trimming protected oak trees (≥8 in DBH) requires an Oak Tree Permit if the work enters the protected zone or removes >25% of crown. Street trees in the public right-of-way are maintained by LA County Public Works.
View full Altadena rules →Carson, CA
Los Angeles County
Carson Public Services Department maintains street trees in the public right-of-way; residents may not trim, top, or remove a city street tree without authorization. Private trees on private property may generally be trimmed by the owner, subject to Carson Municipal Code Art. IX Ch. 1 zoning landscape standards and the California 'self-help' encroachment doctrine for branches overhanging a property line.
View full Carson rules →Key Facts Comparison
| Fact | Altadena | Carson |
|---|---|---|
| Oak Permit Required | Yes if entering protected zone | - |
| Code Section | LA County 22.174.040 | - |
| Parkway Trees | Maintained by LA County DPW | - |
| Utility Pruning | Allowed with notice (PUC 911) | - |
| Street trees | - | City permit/work order required to trim or remove |
| Private trees | - | Generally owner-managed; no heritage tree ordinance |
| Common law | - | Booska v. Patel — neighbor self-help trimming to property line |
| Civil damages | - | Civil Code §3346 — treble damages for willful tree injury |
Highlighted rows indicate differences between cities.
Altadena FAQ
Can I trim the oak in my Altadena backyard?
Light pruning of dead wood is generally fine, but anything entering the protected zone or removing >25% of crown needs an Oak Tree Permit under LA County Code 22.174.040.
Carson FAQ
Can I trim the city tree in front of my house?
No — contact Carson Public Services to request trimming or to obtain a permit. Unauthorized work on street trees can result in citations and replacement cost liability.
Can I cut my neighbor's tree branches that hang over my yard?
Yes, you may trim branches back to the property line at your own expense, but you cannot enter the neighbor's yard or harm the tree's overall health.
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