Heritage & Protected Trees: Altadena vs Lancaster
How do heritage & protected trees rules compare between Altadena, CA and Lancaster, CA?
Altadena and Lancaster have similar restriction levels.
Altadena, CA
Los Angeles County
Oak trees ≥36 inches in diameter qualify as Heritage Oaks under LA County Code Chapter 22.174 and receive heightened review. Removal is rarely approved.
View full Altadena rules →Lancaster, CA
Los Angeles County
Lancaster designates heritage or landmark trees based on size, age, or species. Removal or damage to heritage trees carries significant penalties.
View full Lancaster rules →Key Facts Comparison
| Fact | Altadena | Lancaster |
|---|---|---|
| Heritage Threshold | ≥36 in DBH | - |
| Code Section | LA County Code Ch. 22.174 | - |
| Replacement Ratio | Up to 4:1 | - |
| Designation | - | Size, species, or historical |
| Typical Size | - | 24+ inch trunk diameter |
| Removal | - | Council approval required |
| Topic | - | Heritage Trees |
Highlighted rows indicate differences between cities.
Altadena FAQ
What is a Heritage Oak in Altadena?
Any oak with a trunk 36 inches in diameter or larger under LA County Code Ch. 22.174 — these receive heightened protection.
Lancaster FAQ
How is a heritage tree designated?
Based on trunk size (typically 24+ inches), species rarity, age, or historical significance. Residents may nominate trees.
Can I ever remove a heritage tree?
Only with special approval, typically from city council or tree commission. Granted mainly for safety hazards.
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