Noise Ordinances in Cupertino, CA (2026)
7 verified noise ordinances for Cupertino, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Cupertino's nighttime quiet hours run from 8 p.m. to 7 a.m. weekdays and 6 p.m. to 9 a.m. weekends, when the property-line noise cap drops to 50 dBA residential and 55 dBA nonresidential under §§ 10.48.010 and 10.48.040.
Cupertino Nighttime Noise Curfew
Some RestrictionsCupertino Municipal Code §§ 10.48.010, 10.48.040
“Nighttime” means periods of weekdays from eight p.m. to twelve midnight, and from midnight to seven a.m., and periods on weekends from six p.m. to midnight and from midnight to nine a.m. ... Individual noise sources, or the combination of a group of noise sources located on the same property, shall not produce a noise level exceeding those specified on property zoned as follows ... Residential...
Construction Hours
Grading, construction and demolition may exceed normal noise limits only during daytime hours, and are barred outright within 750 feet of a residential area on weekends, holidays and at night under Municipal Code § 10.48.053.
Cupertino Construction Noise Hours
Some RestrictionsCupertino Municipal Code § 10.48.053
Grading, construction and demolition activities shall be allowed to exceed the noise limits of Section 10.48.040 during daytime hours; provided, that the equipment utilized has high-quality noise muffler and abatement devices installed and in good condition, and the activity meets one of the following two criteria: No individual device produces a noise level more than eighty-seven dBA at a dist...
Barking Dogs
It is unlawful and a nuisance for anyone to keep an animal, including fowl, that habitually disturbs the peace by sound or cry under Municipal Code § 10.48.061, enforced by the Noise Control Officer.
Cupertino Barking Dog Nuisance Rule
Some RestrictionsCupertino Municipal Code § 10.48.061
It is unlawful and a nuisance for any person to keep, maintain or permit upon any lot or parcel of land within the City under his control any animal, including any fowl, which by any sound or cry shall habitually disturb the peace and comfort of any person in the reasonable and comfortable enjoyment of life or property.
Leaf Blower Rules
Cupertino Municipal Code § 10.48.051 limits motorized landscape equipment, including leaf blowers, to set weekday and weekend hours, and since November 5, 2022 allows only a Certified leaf blower rated at 65 dBA or less. Violations fall under the Chapter 10.48 noise ordinance's misdemeanor penalty.
Cupertino Leaf Blower Hours and Certification Rule
Some RestrictionsCupertino Municipal Code § 10.48.051
“Leaf blower” means any portable motorized landscape equipment used to blow leaves, dirt and other debris off sidewalks, driveways, lawns or other surfaces. “Leaf blower, Certified” means a leaf blower with a noise level reading of 65 dBA or less measured at a distance of 50 feet by an independent laboratory per American National Standards Institute (ANSI) standard B175.2, as certified by the m...
Amplified Music & Outdoor Sound
Cupertino Municipal Code § 10.48.040 caps noise at 50 dBA nighttime and 60 dBA daytime from residential property, and 55/65 dBA from nonresidential property. Section 10.48.052 lets outdoor public events use amplified sound only under a City permit, capping event noise at 70 dBA on nearby residential property for up to three daytime hours.
Cupertino Amplified Sound and Noise Limits
Some RestrictionsCupertino Municipal Code §§ 10.48.040, 10.48.052
Land Use at Point of Origin Maximum Noise Level at Complaint Site of Receiving Property Nighttime Daytime Residential 50 dBA 60 dBA Nonresidential 55 dBA 65 dBA ... Outdoor events open to the general public on nonresidential property, such as parades, rallies, fairs, concerts and special sales and promotional events, involving generation of noise levels higher than would normally occur, by use ...
Decibel Limits
Cupertino caps noise at the receiving property line: 50 dBA at night and 60 dBA by day on residential land, and 55/65 dBA on nonresidential land. The Noise Control Officer enforces the limits under Chapter 10.48.
Cupertino Noise Decibel Limits
Some RestrictionsCupertino Municipal Code § 10.48.040
Individual noise sources, or the combination of a group of noise sources located on the same property, shall not produce a noise level exceeding those specified on property zoned as follows, unless specifically provided in another section of this chapter: Land Use at Point of Origin Maximum Noise Level at Complaint Site of Receiving Property Nighttime Daytime Residential 50 dBA 60 dBA Nonreside...
Vehicle Noise
It is a violation to own or operate a registered vehicle with a faulty, modified or missing exhaust or muffler that produces excessive noise, under Municipal Code § 10.48.056, which incorporates California Vehicle Code muffler standards.
Cupertino Vehicle Muffler Noise Rule
Some RestrictionsCupertino Municipal Code § 10.48.056
It is a violation of this chapter to own or operate a motor vehicle, including automobiles, trucks, motorcycles and other similar devices of a type subject to registration, as defined in California Vehicle Code, which has a faulty, defective, deteriorated, modified, replaced, or no exhaust and/or muffler system, and which produces an excessive and disturbing noise level, as defined in Californi...
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