Outdoor music events in unincorporated Santa Clara County typically require a temporary event permit and comply with noise limits. Foothill wedding venues operate under CUPs ending by 10:00 PM.
Outdoor music events in unincorporated Santa Clara County are regulated through the Planning Office temporary event permit process combined with the County Noise Ordinance (Division B11). Events expecting 150 or more attendees generally require a temporary use permit, and those with amplified sound must submit an acoustic plan showing compliance with 55 dBA daytime and 45 dBA nighttime limits at adjacent residential property lines. The foothill wineries and estate wedding venues west of Saratoga and Los Gatos typically operate under Conditional Use Permits (CUPs) that impose strict caps: amplified music ends at 10:00 PM, acoustic only after 9:00 PM, and annual event counts are limited (often 12 to 24 per year). CEQA review applies to new venues and major event expansions. Sheriff patrols enforce complaint-driven response, and repeat violations can trigger CUP revocation hearings before the Zoning Administrator. Nonprofit and agricultural events (harvest festivals) sometimes receive exemptions.
Contact your local code enforcement office for specific penalty information.
See how Santa Clara County's outdoor music rules stack up against other locations.
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