Tree Trimming: Lancaster vs Topanga
How do tree trimming rules compare between Lancaster, CA and Topanga, CA?
Lancaster and Topanga have similar restriction levels.
Lancaster, CA
Los Angeles County
Lancaster may have protected tree ordinances requiring permits before removal or significant trimming. Heritage and native oaks often protected.
View full Lancaster rules →Topanga, CA
Los Angeles County
Tree trimming in unincorporated LA County is generally unrestricted for private property, except for protected oak trees. Any cutting or pruning of oak trees 8+ inches diameter requires an Oak Tree Permit under Chapter 22.174. Street trees are managed by county public works.
View full Topanga rules →Key Facts Comparison
| Fact | Lancaster | Topanga |
|---|---|---|
| Protected Trees | Permit required | - |
| Heritage Size | Typically 12 to 24" trunk | - |
| Replacement | 2:1 or 3:1 ratio | - |
| Street Trees | City property | County public works manages |
| Private Trees | - | Generally no permit needed |
| Oak Trees | - | Permit required for 8+ inch diameter |
| Reference | - | Chapter 22.174 (Oaks) |
Highlighted rows indicate differences between cities.
Lancaster FAQ
Can I remove a tree on my property?
Check if it’s a protected species or above the size threshold. A permit may be required.
What about neighbor’s tree branches?
You can trim branches that overhang onto your property up to the property line.
Topanga FAQ
Do I need a permit to trim trees on my property in LA County?
No permit is needed for general trimming of most species. However, oak trees are protected under the Oak Tree Ordinance (Chapter 22.174) and trimming that could harm the tree's health may require a permit. Contact the Department of Regional Planning at (213) 974-6411.
Can I trim my neighbor's tree branches that hang over my property?
Yes. Under California law, you can trim branches that overhang your property line back to the property line. However, you cannot trim in a way that kills the tree or you may be liable for its replacement value.
Who trims trees near power lines?
Utility companies (Southern California Edison, LADWP) have the right and responsibility to trim trees near power lines. Contact your utility provider to request trimming. Do not attempt to trim near power lines yourself.
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