LA County maintains roughly 30 community plans plus several specific plans under LACO Title 22 that overlay base zoning across unincorporated areas like Altadena, East LA, Marina del Rey, and Topanga with tailored use, density, height, and design rules.
Title 22.10 of the LA County Code authorizes Community Plans and Specific Plans for unincorporated areas. The Department of Regional Planning (DRP) administers about 30 community plan areas, including Altadena, East Los Angeles, Marina del Rey, Santa Monica Mountains North Area, Topanga, West Athens-Westmont, and Westside. Each plan supplements the base zoning with a land-use map, development standards, design guidelines, and occasionally Project Permit Compliance review. Where a plan conflicts with base zoning, the plan controls. Coastal community plans also serve as Local Coastal Programs. Always verify your parcel's plan via the GIS-NET parcel viewer before assuming a base-zone rule applies.
Building inconsistently with an applicable community or specific plan triggers permit denial, stop-work orders, and required redesign, removal, or restoration at the owner's expense.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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
LA County Code Section 10.32.010 prohibits dogs running at large in any public place or private property other than the owner's, unless restrained by a chain...
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...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how Altadena's specific plans overview rules stack up against other locations.
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