Alhambra, CA Noise Ordinances: Amplified Music & Events (2026)

The City of Alhambra regulates amplified music through its general noise standards plus a special rule for public-address speaker systems. Under Section 18.02.050, it is unlawful to produce noise received on another person's property in a designated noise zone above the interior limits of 55 dBA (residential), 60 dBA (Mixed Use district on Main Street between Garfield and Atlantic), or 70 dBA (commercial/industrial), measured at least four feet from the nearest wall, ceiling, or floor with windows and doors closed. The code specifically anticipates amplified sound: Section 18.02.030 says a five-minute measurement is acceptable when quantifying live or amplified music. Outdoor public-address speaker systems get their own rule in Section 18.02.090: they are permitted only on properties zoned commercial planned development (CPD), central business district (CBD), or industrial planned development (IPD); the speakers may produce no more than 10 watts and no more than 95 decibels at four feet; all cables and amplifiers must carry a UL label; and amplifiers must include an internal volume-limiting device. A permit from the Department of Development Services is required, renewable annually, and the permit is revoked after more than one violation in a permit period (no new permit for one year after revocation). These are city standards distinct from any Los Angeles County rule, which applies only to unincorporated areas.