LA County's Rural Outdoor Lighting District (ROLD) ordinance, effective 2012, requires fully shielded outdoor lighting and prohibits light trespass in designated rural unincorporated areas. The ROLD covers mountain and rural communities. Mercury vapor lights and drop-down lenses are prohibited.
LA County's Rural Outdoor Lighting District (ROLD) ordinance, effective 2012, restricts outdoor lighting in rural unincorporated areas to reduce light pollution. The ROLD covers communities in the Santa Monica Mountains, northern LA County, and other rural areas. Requirements include full shielding (no upward light emission), color temperature limits (warm white preferred, below 3000K), and maximum lumen output per fixture. New construction and major renovations in ROLD areas must submit a lighting plan. The ordinance protects the Mt. Wilson Observatory and dark sky resources for the Griffith Observatory.
Non-compliant lighting in ROLD areas must be corrected within 30 days of notice. Failure to comply results in fines of $100-$500 per fixture per day. New construction permits will not be issued without a compliant lighting plan. The Department of Regional Planning enforces ROLD requirements during plan review and through field inspections.
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 other cities in Los Angeles County handle dark sky rules.
See how Altadena's dark sky rules rules stack up against other locations.
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