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 22. Roosters and large flocks may require additional permits or be restricted.
LA County Code Title 10 Section 10.20 regulates animal keeping. In R-1 zones, hens are generally permitted as a customary accessory use. Coops must typically be at least 35 feet from any habitable structure on adjoining property (Title 10 nuisance standard). Roosters are limited in residential zones due to noise (Section 10.36.010 — habitual noise nuisance). Title 22 may further restrict large flocks. Beekeeping is similarly permitted subject to setback and density limits. Check with LA County Animal Care & Control and LA County Planning for parcel-specific rules.
Excessive noise (roosters), unsanitary conditions, or attractant for vermin can be cited as a public nuisance under Title 10 — administrative fines plus required abatement.
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
In Altadena's Very High Fire Hazard Severity Zones, grass and weeds must be kept under 3 inches under LA County Fire Code Title 32 defensible-space rules.
Altadena, CA
LA County Fire's Brush Clearance program also functions as the weed-abatement ordinance — vacant and improved lots must keep weeds and grasses cut to under 3...
Altadena, CA
Outdoor watering in Altadena (served by Lincoln Avenue Water Co., Las Flores Water Co., Rubio Cañon, and Kinneloa Irrigation District) is limited to 2 days p...
Altadena, CA
Oak trees (genus Quercus) with a trunk circumference of 25 inches or more (8-inch diameter at 4.5 ft above grade) are protected — removal, damage, or encroac...
Altadena, CA
Commercial filming in Altadena's unincorporated areas requires a permit from FilmLA (the official film office contracted by LA County). Permits cover insuran...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle chickens & livestock.
See how Altadena's chickens & livestock rules stack up against other locations.
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