Amplified music rules in St. Louis, MO — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
Amplified music in St. Louis is regulated under SLRC 15.42 and the Outdoor Entertainment Permit rules. Sound plainly audible at 50 feet after 10 PM is prohibited; outdoor venues in The Grove, Soulard, and Washington Avenue require sound permits.
St. Louis treats amplified music more strictly than general noise. Under SLRC 15.42.060 no amplified music from a residence, bar, or outdoor venue may be plainly audible beyond 50 feet of the property line between 10 PM and 7 AM (11 PM on Fridays and Saturdays). Licensed entertainment districts like Washington Avenue, The Grove, and Soulard operate under Outdoor Entertainment Permits issued by the Excise Division that set specific decibel caps and cutoff times, typically 1:30 AM on weekends aligned with liquor license hours. Residential parties with DJs or bands generating repeated complaints can lead to SLRC 15.42.040 chronic nuisance designation and a $500 fine. Downtown residents near Ballpark Village and the Cardinals stadium often rely on venue-specific sound management plans coordinated with the Downtown Neighborhood Association.
Venue: $500 per incident plus risk to liquor license. Residential host: $100-$500, chronic nuisance designation possible.
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