Union City's development standards under UCMC require outdoor lighting to be shielded so it does not trespass onto adjacent residential windows and private outdoor areas. The standards target glare and spillover from new development rather than a fixed brightness limit at the property line.
Light trespass is addressed through Union City's general development and site-design standards (UCMC Chapter 18.24). Outdoor lighting must be shielded and directed so it does not shine onto adjacent residential windows or private outdoor living areas, controlling glare and spillover at property lines. Building-mounted fixtures must attach to walls or eaves and may not exceed the parapet or roofline, and freestanding standards in pedestrian areas are capped at 16 feet to keep light directed downward. There is no numeric maximum foot-candle limit at the property line in the code; enforcement focuses on shielding and directing light away from neighbors. Persistent nuisance glare may also be addressed under the city's property-maintenance and nuisance provisions.
Lighting that spills glare onto a neighbor's home can be addressed through code enforcement or nuisance complaints, with the city requiring shielding, aiming adjustments, or fixture changes.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Union City does not restrict backyard composting, and its Water Efficient Landscape ordinance (UCMC 18.112) requires compost in permitted landscape installat...
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Union City has no ordinance banning artificial turf on private property, and California Civil Code 4735 voids HOA rules prohibiting synthetic grass. For perm...
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Union City's Water Efficient Landscape ordinance (UCMC Chapter 18.112) implements California's MWELO. New landscapes of 500+ sq ft and rehab projects of 2,50...
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Union City's water purveyor is the Alameda County Water District (ACWD), serving the Tri-City area. ACWD enforces permanent water-waste prohibitions year-rou...
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All weeds on streets, sidewalks, and private property in Union City are declared a public nuisance under UCMC Chapter 7.08. The Fire Chief gives a ten-day no...
Side-by-side rule comparisons with other cities in Alameda County.
See how other cities in Alameda County handle light trespass.
See how Union City's light trespass rules stack up against other locations.
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