St. Louis has no city ordinance setting installation dates, removal deadlines, or brightness limits for residential holiday lights. Lights may stay up year-round on private property. Amplified outdoor audio must comply with SLRC Ch. 15.42 noise standards. Local Historic Districts (Lafayette Square, Soulard, Central West End, etc.) may restrict permanently mounted fixtures through Preservation Board review. HOAs are largely a private matter under Missouri law.
St. Louis does not regulate residential holiday-light installation, removal dates, or brightness through municipal code. Decorative lighting is permitted year-round on private property at single-family and multi-family properties. The City's noise ordinance, SLRC Ch. 15.42, applies to amplified music or audio in holiday displays: sound that is plainly audible 50 feet from the source between 10 p.m. and 7 a.m. weekdays (11 p.m. weekends) is presumptively unreasonable. Properties in any Local Historic District designated under SLRC Title 24 (e.g., Lafayette Square, Soulard, Compton Heights, Central West End, Skinker-DeBaliviere, Hyde Park) may require Preservation Board review for permanently mounted lighting clips, fixtures, or controllers — temporary seasonal lighting that does not modify the building structure typically does not require a Certificate of Appropriateness. Missouri has no statewide HOA holiday-display preemption; private HOA covenants are enforceable through the association under Missouri Uniform Common Interest Ownership rules. Federal law (Freedom to Display the American Flag Act of 2005) preempts HOA bans on reasonable flag displays. The Central West End and the Hill neighborhood are notable for elaborate annual displays.
Noise ordinance violations under SLRC Ch. 15.42 are summons to St. Louis Municipal Court with fines up to $500 and the possibility of escalating chronic-nuisance designations. Light-trespass nuisance complaints are pursued under general nuisance authority. Local Historic District violations involving permanent fixtures are pursued by the Preservation Board.
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