Noise Ordinances in Murrieta, CA

If you live in Murrieta or are thinking about moving there, noise ordinances are one of those things you probably won't think about until they affect you directly. Murrieta has 3 specific rules on the books covering different aspects of noise ordinances, and some of them might surprise you.

Vehicle Noise

Murrieta bars off-road motor vehicles, including motorcycles, trail bikes, dune buggies, scooters and jeeps, from running within fifty feet of any residential property line under Municipal Code Section 10.48.040, and requires every such vehicle to carry a standard factory muffler meeting Vehicle Code Section 27150 under Section 10.48.050. Modified exhausts with removed baffles or bypass devices are illegal, and violations run through Chapter 1.32's escalating fine schedule.

Key details: Residential buffer: 50 feet from property line (§10.48.040). Stable/pen buffer: 75 feet near stables, pens, riding arenas. Muffler standard: Must meet Vehicle Code §27150. Muffler mods: No baffle removal, cutoff or bypass devices. Berm/jump height cap: 4 vertical feet if visible from street.

A first infraction under Chapter 1.32 draws a fine up to $100, a second violation of the same provision within a year up to $200, and a third or later violation up to $500. The city attorney can also charge the offense as a misdemeanor, carrying a fine up to $1,000, imprisonment in county jail for up to six months, or both, with each day of continued violation counted as a separate offense.

Amplified Music & Outdoor Sound

Murrieta caps amplified sound in any place of public entertainment, including bars, radios, phonographs, and musical instruments, at 95 dBA measured at any point a customer normally occupies, unless the venue posts a hearing-impairment warning sign at every public entrance under Section 16.30.130(D).

Key details: Sound cap: 95 dBA at customer area. Exception: Posted hearing-impairment warning sign. Measurement: Slow-response A-weighted meter. Pure-tone penalty: Extra 5 dB reduction, §16.30.110. Enforcement: Code enforcement officer, §16.30.040.

A first violation of the 95 dBA amplified-sound cap draws a written correction notice under Section 16.30.050 rather than a citation, so long as the operator fixes the noise level or posts the required warning sign within the stated deadline. An uncorrected or repeat violation is an infraction under Section 1.08.050: $100 for a first conviction, $200 for a second, $500 for a third within a year, elevating to a misdemeanor punishable by up to $1,000 or six months in jail on a third conviction of the same violation.

Construction Hours

Murrieta bars construction, drilling, repair, alteration, or demolition equipment noise that disturbs a residential or commercial property line on weekdays before 7 a.m. or after 8 p.m., and bans it outright all day on Saturdays, Sundays, and holidays except for emergency utility work. Scheduled equipment also carries separate numeric decibel ceilings by land use and time of day.

Key details: Weekday quiet hours: 8:00 p.m. to 7:00 a.m.. Weekend/holiday rule: Barred all day. Mobile equipment cap (day): 75 dBA residential. Stationary equipment cap (night): 50 dBA single-family. Enforcement: Code enforcement officer, §16.30.040.

A first construction-noise violation draws a written notice under Section 16.30.050 specifying the time to correct the condition; no citation issues if the violator fixes it in time. Repeat or uncorrected violations are prosecuted under the citywide penalty in Section 1.08.050 as an infraction, fined $100 for a first conviction, $200 for a second, and $500 for a third within a year, escalating to a misdemeanor punishable by up to $1,000 or six months in county jail after a third conviction of the same provision.

This is not one of those rules that cities tend to ignore. Murrieta actively enforces its construction hours requirements.

The Bottom Line

Murrieta's noise ordinances 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.

This guide is based on Murrieta's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.