Noise from Specific Sources in Murrieta, CA

If you live in Murrieta or are thinking about moving there, noise from specific sources are one of those things you probably won't think about until they affect you directly. Murrieta has 4 specific rules on the books covering different aspects of noise from specific sources, and some of them might surprise you.

Delivery Truck Noise

Murrieta bans noisy loading and unloading of boxes, crates, containers, building materials or garbage cans between 10 p.m. and 6 a.m. if it creates a noise disturbance, covering early-morning and late-night delivery truck activity citywide.

Key details: Restricted hours: 10:00 p.m. to 6:00 a.m.. Covered activity: Loading/unloading boxes, crates, containers. Refuse truck limit: 86 dBA at 50 feet. Governing section: Murrieta Code § 16.30.130.B. Relief option: Director modification, up to 2 years.

A delivery or loading noise disturbance during the 10 p.m. to 6 a.m. window is enforced under the citywide penalty structure at Section 1.08.050: an infraction carrying up to a $100 fine for a first offense, $200 for a second within a year, and $500 for a third within a year, with a third violation of the same provision chargeable as a misdemeanor punishable by up to a $1,000 fine and up to six months in county jail. Each night of continued violation is treated as a separate offense.

HVAC & Mechanical Noise

Murrieta caps residential air conditioning and refrigeration equipment noise at 55 dBA on a neighbor's property line, 50 dBA at the center of a neighbor's patio, and 50 dBA outside a neighbor's nearest living-area window.

Key details: Property line limit: 55 dBA, 5 ft above grade. Patio center limit: 50 dBA. Nearest window limit: 50 dBA. Governing section: Murrieta Code § 16.30.130.I. Measurement height: 5 feet above grade level.

Exceeding the AC/refrigeration noise limits is enforced under Section 1.08.050's general penalty scheme: a first infraction carries up to a $100 fine, a second within a year up to $200, and a third within a year up to $500, with a third violation of the same provision prosecutable as a misdemeanor, up to a $1,000 fine and/or six months in county jail. Each day the equipment continues to exceed the standard is a separate offense, and a homeowner can be required to relocate or muffle the unit to bring it into compliance.

Car Alarm Limits

Murrieta requires a sounding motor vehicle burglar alarm to be terminated within 15 minutes, and police can enter private property, force open alarm boxes, or tow a vehicle to silence a nuisance alarm that has run for an hour straight or two hours on and off.

Key details: Alarm cutoff: 15 minutes from activation. Nuisance threshold: 1 hr continuous or 2 hrs intermittent. False-alarm threshold: 4 in any 90-day period. Police authority: Enter property, tow vehicle to silence. Governing sections: Murrieta Code §§ 16.30.130.E.3, 8.04.070.

A vehicle alarm that runs past the 15-minute limit or becomes a nuisance alarm under Section 8.04.070 is a code violation subject to the general penalty in Section 1.08.050: infraction fines of up to $100 for a first offense, $200 for a second within a year, and $500 for a third within a year, escalating to a misdemeanor (up to $1,000 fine and/or six months in jail) on a third violation of the same provision or at the city attorney's discretion for a serious case. Separately, the vehicle itself can be towed at the owner's expense to stop the noise, independent of any citation.

Bar & Nightclub Noise

Murrieta caps amplified sound inside bars, nightclubs and other places of public entertainment at 95 dBA measured on the slow response setting wherever a customer normally stands, unless hearing-impairment warning signs are posted at every public entrance.

Key details: Sound limit: 95 dBA, slow response. Measurement point: Where customers normally stand. Exception: Posted hearing-impairment warning signs. Governing chapter: Murrieta Code Ch. 16.30, Noise. First offense penalty: Infraction, up to $100 fine.

Violating Chapter 16.30 is enforced under the citywide penalty scheme in Murrieta Code Section 1.08.050: a first offense is an infraction punishable by up to a $100 fine, a second infraction within a year up to $200, and a third or later infraction within a year up to $500. A third infraction of the same provision by the same person is prosecutable as a misdemeanor, and the city attorney may charge a violation as a misdemeanor outright given the seriousness of the conduct, carrying up to a $1,000 fine and/or up to six months in county jail. Each day of continued excess noise is a separate offense.

The Bottom Line

Murrieta's noise from specific sources rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Murrieta is broadly strict or permissive.

These rules come from Murrieta's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.