Heritage & Protected Trees: Carson vs Los Angeles
How do heritage & protected trees rules compare between Carson, CA and Los Angeles, CA?
Carson has fewer restrictions than Los Angeles.
Carson, CA
Los Angeles County
Carson does not maintain a separately enumerated 'heritage tree' or 'landmark tree' registry in its Municipal Code. Instead, all parkway and right-of-way trees are uniformly protected under CMC Article 3 Chapter 9, and unauthorized removal is valued at the tree's full appraised worth under the Council of Tree and Landscape Appraisers Guide for Plant Appraisal (10th Ed.).
View full Carson rules →Los Angeles, CA
Los Angeles County
Los Angeles protects four native species – Oak (Quercus), Western Sycamore, Southern California Black Walnut, and California Bay – with a trunk circumference of four feet or more (roughly 15 inches DBH). Removal, relocation, or damage requires a Board of Public Works permit, an arborist report, and 4:1 replacement.
View full Los Angeles rules →Key Facts Comparison
| Fact | Carson | Los Angeles |
|---|---|---|
| Heritage registry? | No separate heritage-tree designation in Carson code | - |
| Protection mechanism | Flat protection under CMC Article 3 Ch. 9 + appraised-value penalty | - |
| Valuation method | CTLA Guide for Plant Appraisal, 10th Edition | - |
| Approved species list | Parkway Tree Master Plan / Authorized List of Carson Trees (Exhibit A) | - |
| State preemption | None — heritage-tree law is local in CA | - |
| DBH threshold | - | 4-foot trunk circumference (~15 inch DBH) |
| Protected species | - | Native oak, sycamore, black walnut, bay |
| Permit | - | Board of Public Works approval required |
| Replacement | - | 4:1 ratio with 24-inch box stock |
| Arborist report | - | Certified arborist report mandatory |
Highlighted rows indicate differences between cities.
Carson FAQ
Does Carson designate specific 'heritage' or 'specimen' trees?
No — Carson does not maintain a named heritage-tree list in its Municipal Code. All parkway and right-of-way trees are equally protected under Article 3 Chapter 9, and a large mature tree's value under the CTLA Guide for Plant Appraisal can far exceed $1,000, so the penalty scales with the tree.
Can a developer remove a mature tree during construction?
If the tree is in the parkway or city right-of-way, the developer must obtain Public Works approval under Chapter 9 and follow any replacement direction from the Public Works Division. For trees on private property, no city-wide private-tree permit applies, but check zoning landscape conditions of approval under CMC Article IX.
Los Angeles FAQ
Can I cut a big oak on my own LA property?
No. If the oak is a native Quercus species with a trunk 4 feet around or larger, you need a Board of Public Works permit and arborist report before any removal or major pruning.
What counts as a heritage tree in LA?
LA uses "protected tree" rather than heritage. The four protected natives (oak, sycamore, walnut, bay) at 4-foot circumference qualify. Non-native species are not protected at the city level.
What if I damage roots during construction?
Encroachment into the 5-foot protected zone around the dripline – including grading, trenching, or hardscape – triggers permit review and may require monitoring by a certified arborist.
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