Tree Protection in Altadena, CA (2026)

2 verified tree protection rules for Altadena, California, sourced directly from the municipal code and official government pages.

Verified from official government sources

Tree Removal Permits

Removing or significantly damaging a native oak with an 8-inch trunk diameter (25-inch circumference) at 4.5 ft above grade requires an Oak Tree Permit from LA County Planning under Section 22.174.040.

Altadena Oak Tree Permits (LA County Code 22.174.040)

Heavy Restrictions

Full ordinance details →Official source ↗

Heritage & Protected Trees

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.

Altadena Heritage Oak Trees (LA County Code 22.174)

Heavy Restrictions

Full ordinance details →Official source ↗

Looking for Los Angeles County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Altadena city rules.

Tree Protection in Los Angeles County →