2 county-level rules, plus city-specific rules for 1 city in Jefferson County, Kentucky.
Verified from official government sources
Louisville Metro's Land Development Code Chapter 4, Part 1 regulates outdoor lighting with full-cutoff fixture requirements for nonresidential uses, spillover limits at property lines, and specific standards near residential zones and parkways.
Louisville Metro LDC 4.1.7 caps light spillover at 0.1 footcandle at residential property lines and 1.0 footcandle at rights-of-way, with persistent light trespass also actionable as a private nuisance under Kentucky common law.
1 cities in Jefferson County have their own outdoor lighting rules. Each link goes to that city's dedicated page with code citations.
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Jefferson County Ordinance Hub →