Showing ordinances that apply to Acalanes Ridge, CA
Acalanes Ridge is an unincorporated community (population 1,285) in Contra Costa County, California. Because Acalanes Ridge is not an incorporated city, it does not have its own municipal code. Instead, Contra Costa County ordinances apply directly to properties here. The amplified music & events rules below are the ones that govern your area.
Amplified music in unincorporated Contra Costa County is regulated under Title 716. Outdoor speakers, live bands, and DJ equipment must not produce sound plainly audible inside a neighboring home and are prohibited during 10 PM–7 AM quiet hours without a special-event permit.
Amplified music — including outdoor speakers, backyard DJs, live bands, and PA systems — is treated as a presumptive nuisance under Title 716 when it is plainly audible inside a neighboring dwelling with doors and windows closed, or when it exceeds ambient levels by a noticeable margin. During quiet hours (10:00 PM to 7:00 AM weekdays; to 8:00 AM weekends), even moderate amplification is typically a violation. Commercial venues and event spaces in unincorporated areas (notable in Discovery Bay along the Delta and event barns in east county) must secure noise-related conditions through their land-use permits. One-time outdoor events (weddings, festivals) may require a temporary event permit from the Department of Conservation and Development, which can include noise conditions, curfews, and neighbor-notification requirements. Repeated amplified-music complaints can escalate to administrative citations, conditional-use permit review, and in severe cases abatement of the activity. Car stereos audible 25+ feet away are separately regulated under California Vehicle Code §27007.
Contact your local code enforcement office for specific penalty information.
See how Acalanes Ridge's amplified music & events rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.