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 public right-of-way are maintained by LA County Public Works.
LA County Code Section 22.174.040 prohibits encroachment into the protected zone of any oak ≥8 inches DBH without a permit. Routine pruning of dead wood or canopy thinning under 25% is generally allowed without permit. Trees in the public right-of-way are maintained by LA County Public Works — homeowners typically need DPW permission to trim parkway trees. Section 911 of the California Public Utilities Code allows utilities (SCE, etc.) to trim trees encroaching on power lines for safety, with required notice.
Unpermitted oak damage = misdemeanor under 22.174.080 — fines up to $1,000 + replacement value. Damage to public right-of-way trees can result in restitution to the County.
Altadena, CA
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Altadena, CA
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