Noise Ordinances in Hawthorne, CA (2026)
7 verified noise ordinances for Hawthorne, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Hawthorne bans running a radio, TV, stereo, or similar device in any residential zone between 10 p.m. and 7 a.m. if it disturbs neighbors, and treats any noise over the property line that beats the ambient level by more than 5 decibels as automatic proof of a violation, under Hawthorne Code § 17.20.270(F)(1).
Hawthorne Nighttime Noise Curfew Rules
Some RestrictionsHawthorne Code § 17.20.270(F)(1)
1. Radios, Television Sets and Similar Devices. It is unlawful for any person within any residential zone of the city to use or operate any radio receiving set, musical instrument, phonograph, television set or other machine or device for the producing or reproducing of sound, between the hours of ten p.m. of one day and seven a.m. of the following day, in such a manner as to disturb the peace,...
Construction Hours
Hawthorne limits construction and demolition noise to weekdays 7 a.m. to 6 p.m. and Saturdays 8 a.m. to 5 p.m., barring it entirely on Sundays and federal holidays, with added decibel caps for work near residential zones.
Hawthorne Construction Noise Hours Restricted
Some RestrictionsHawthorne Code § 9.34.060(B)
Allowable Hours of Construction Activity. Construction and demolition activities are allowed only during the times specified in Table N-3...Monday-Friday 7:00 a.m. to 6:00 p.m. Saturday 8:00 a.m. to 5:00 p.m. Sunday, Federal Holidays Not allowed. Note: should demolition, excavation, grading, spray painting, construction, maintenance, and/or repair of buildings be conducted outside of the above-...
Barking Dogs
Hawthorne treats a dog that barks in a substantially continuous manner, day or night, to the annoyance of neighbors as a declared nuisance, enforced through a formal complaint, investigation and hearing process before the city's animal control board rather than an immediate citation.
Hawthorne Barking Dog Nuisance Abatement Process
Significant RestrictionsHawthorne Code § 6.25.015
No person shall keep, maintain or harbor within the city any dog which shall by loud and continuous, or loud and frequent barking, disturb the peace and quiet of any neighborhood.
Amplified Music & Outdoor Sound
Hawthorne bars anyone from operating amplifying devices, speakers, radios, TVs or music equipment on private property in a way that disturbs neighbors' peace and comfort. There's no fixed decibel threshold in this section; violations are judged case by case and enforced by police or code enforcement.
Hawthorne Bans Disturbing Amplified Sound
Some RestrictionsHawthorne Code § 9.33.030
No person shall knowingly or wantonly use or operate, in or upon private property, any of the following types or kinds of items as to disturb the peace, quiet and comfort of the neighboring inhabitants. A. any mechanical device, machine, apparatus or instrument for the intensification or amplification of the human voice or other sound. B. any radio receiving set, musical instrument, phonograph,...
Aircraft Noise
Hawthorne's Airport Overlay Zone (AOZ) wraps Hawthorne Municipal Airport and splits into Area #1 (2012 65 CNEL noise contour) and Area #2 (60 CNEL contour). New noise-sensitive buildings in Area #1 must hit an interior noise level of 45 dB CNEL with doors and windows shut, and brand-new noise-sensitive uses are barred outright there under Hawthorne Code § 17.22C.050.
Hawthorne Airport Noise Overlay Rules
Significant RestrictionsHawthorne Code § 17.22C.050(A)(1), (A)(3)
A. AOZ Area #1. The following provisions shall apply within AOZ Area #1: 1. Interior Noise Standard. Any structure inhabited or used by a noise-sensitive use, as defined in this chapter, shall be required to provide sound insulation within the newly constructed area to meet an interior noise level of 45 dB CNEL or less with all doors and windows closed, consistent with Title 24 of the Californi...
Decibel Limits
Hawthorne sets numeric exterior noise ceilings by land-use type and time of day: 60 dBA daytime and 50 dBA nighttime for residential receivers, 65/60 dBA for commercial, and 70 dBA at any time for manufacturing or industrial zones.
Hawthorne's Exterior Noise Decibel Limits by Zone
Some RestrictionsHawthorne Code § 9.34.030
Except as provided for in this chapter, no person shall, at any location within the city, create any noise or allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which causes the energy-equivalent noise level (Leq, dBA) to exceed the noise standards established in subsection A of this section for the receiving land use type...Residential 7...
Vehicle Noise
Hawthorne outlaws running a motor vehicle, motorcycle, dune buggy, scooter or jeep on a vacant lot, parking lot or acreage in a way that disturbs a neighborhood's peace through noise, dust, smoke or fumes.
Hawthorne Bans Disturbing Vehicle Noise
Some RestrictionsHawthorne Code § 10.64.010
A person shall not operate any motor vehicle (including any motorcycle, trail bike, dune buggy, motor scooter or jeep) or the motor thereof on any vacant lot, parking lot, vacant property or acreage so as to disturb the peace or quiet of any neighborhood or person by noise, dust, smoke or fumes caused by such motor vehicle. This section does not apply to any act prohibited by Section 372 of the...
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