Murrieta, CA Noise Ordinances: Quiet Hours (2026)

Murrieta regulates residential noise under Chapter 9.02 (Noise Control) of the Murrieta Municipal Code, which sets both time-of-day prohibitions and measured dBA limits referenced to zoning districts. Between 10:00 p.m. and 7:00 a.m. Monday through Friday, and 10:00 p.m. and 8:00 a.m. Saturday, Sunday, and federal holidays, any sound produced on private property that is plainly audible inside a neighboring residence or across a residential property line is presumptive evidence of a violation. Residential receiving zones are capped at 55 dBA during daytime hours and 45 dBA during the quiet-hours window. Common sources of violations in Murrieta include backyard parties in master-planned communities such as Copper Canyon, Greer Ranch, and California Oaks, late-night pool equipment and HVAC installs, and amplified sound at event venues near Los Alamos Road and Whitewood. Enforcement follows a progressive model under Chapter 1.20: warning, $100 first administrative citation, $200 second citation within 12 months, and $500 thereafter. Chronic violators can be declared a public nuisance with abatement costs recorded as a lien against the property. Murrieta Police non-emergency dispatch at (951) 696-3615 handles after-hours calls; the Code Enforcement division handles business-hour follow-up.