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.
LA County Code Chapter 22.174 protects all native oaks (Quercus species) measuring at least 25 inches in circumference (8 inches DBH). Section 22.174.040 requires an Oak Tree Permit to cut, destroy, remove, relocate, damage, or encroach within the protected zone (5 ft outside the dripline). Applications go to LA County Planning and require an arborist's report. The Altadena CSD's historic preservation provisions (Section 22.306.060.D) reinforce protection of mature vegetation on significant properties.
Unpermitted oak removal is a misdemeanor under Section 22.174.080 — fines up to $1,000 per tree, replacement (typically 2:1), and restitution for tree value.
Altadena, CA
LA County allows backyard chickens in R-1 zones in unincorporated areas (including Altadena) subject to coop setbacks under LA County Code Title 10 and Title...
Altadena, CA
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Altadena, CA
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 publ...
Altadena, CA
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Altadena, CA
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Altadena, CA
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle tree removal permits.
See how Altadena's tree removal permits rules stack up against other locations.
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