Corona, CA Outdoor Lighting: Light Trespass (2026)

Light trespass occurs when artificial light from one property (security floods, landscape lighting, signs, etc.) shines onto a neighboring property in a way that interferes with the neighbor's use and enjoyment. Corona Municipal Code Chapter 17.36 sets enforceable standards: new development must demonstrate through photometric plans that illuminance at residential property lines does not exceed 0.5 foot-candles. Existing fixtures that create spillover or glare can be addressed through complaints to Code Enforcement under Chapter 8.12 (Public Nuisances). Common violations include high-mounted security floods aimed across property lines, landscape uplighting in tree canopies that shines into second-story windows, and commercial parking lot lights illuminating adjacent residential yards. Resolution typically begins with neighbor-to-neighbor discussion, followed by code enforcement notice if unresolved. Solutions include adding shields or hoods, redirecting fixtures downward, lowering wattage, switching to warmer color temperatures, installing motion sensors instead of dusk-to-dawn operation, and adding timers to limit operation. Persistent violations after notice can result in administrative citations of $100 to $1,000 per day. Civil action between neighbors is also available under California nuisance law for damages and injunctive relief.