Keller, TX Outdoor Lighting: Dark Sky Rules (2026)

Outdoor lighting in Keller is regulated by the Zoning Ordinance and related Lighting Standards designed to minimize light pollution, preserve neighborhood character, and prevent glare onto adjoining properties. Commercial, multifamily, and nonresidential exterior lighting must use full-cutoff or fully shielded fixtures that direct light downward, with the luminaire housing blocking emission above the horizontal plane. Maximum illuminance at residential property lines is generally limited to a low foot-candle level, commonly 0.1 to 0.5 foot-candles, to prevent light trespass. Pole heights are regulated by district, with parking lot lights often capped around 20 to 25 feet in areas adjacent to single-family residential. Canopy lighting at gas stations and drive-throughs must be recessed or shielded so that no bulb or refractor is visible from outside the canopy. Sign illumination is addressed separately in the Sign Ordinance. Residential outdoor lighting is less strictly regulated, but glare onto neighboring properties is prohibited as a nuisance. Keller has promoted dark-sky-friendly design particularly near parks and trails. The Engineering Department and Planning staff review lighting photometric plans as part of site plan approval. Retrofits of existing nonconforming lighting are often required when properties undergo redevelopment. Specific fixture and lumen caps may be updated periodically.