Union City has no formal dark-sky ordinance, but UCMC general development regulations require outdoor lighting to be shielded so it does not spill onto adjacent residential windows and outdoor areas. Standards also cap fixture height and set minimum walkway lighting.
Union City does not have a standalone dark-sky or International Dark-Sky Association ordinance. Outdoor lighting is instead controlled through the zoning code's general development and site-design standards (UCMC Chapter 18.24). Lighting must be shielded from adjacent residential windows and private outdoor areas to limit glare and spillover. Freestanding light standards in pedestrian areas and courtyards are limited to 16 feet in height, and building-mounted fixtures must attach to walls or eaves without exceeding the parapet or roofline. At least one foot-candle of light is required for walkways and parking areas for safety. These provisions apply chiefly to new development and design review rather than to existing single-family homes.
Lighting that is unshielded or creates glare onto neighboring residences can be cited during development review or code enforcement and may require fixture shielding, redirection, or replacement.
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 does not prohibit residential rainwater capture. California's Rainwater Capture Act allows rooftop collection without a water right, and the City'...
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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 dark sky rules.
See how Union City's dark sky rules rules stack up against other locations.
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