Redmond light trespass is controlled through property-line foot-candle limits in RMC Title 21 for commercial sites and the general nuisance code for residential lighting that disturbs neighbors.
Light trespass, meaning unwanted illumination spilling from one property onto another, is addressed in Redmond through two mechanisms. For commercial, industrial, and multifamily properties, Redmond Municipal Code Title 21 outdoor lighting standards set property-line light-level caps (typically 0.1 to 0.5 foot-candles depending on zone and adjoiner) and require full-cutoff shielded fixtures. For single-family residential properties there is no specific foot-candle limit, but chronic bright lighting that disrupts sleep, shines directly into a neighbor's window, or causes glare onto public streets can be treated as a nuisance under Redmond's general nuisance and property maintenance provisions. Complaints typically start with neighbor mediation, then a code compliance complaint to the City of Redmond. Automatic dusk-to-dawn fixtures, motion sensors, timers, and simple shielding or aiming adjustments usually resolve issues without enforcement.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in King County.
See how other cities in King County handle light trespass.
See how Redmond's light trespass rules stack up against other locations.
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