Cupertino, CA Noise Ordinances: Construction Hours (2026)
Construction hours in Cupertino, CA, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Daytime hours
- 7am-8pm weekdays, 9am-6pm weekends
- Equipment noise cap
- 87 dBA at 25 feet
- Weekend/holiday buffer
- barred within 750 ft of residential
- Helicopter hours
- 9am-6:30pm weekdays only
- Homeowner holiday exception
- 9am-6pm, domestic tools only
Summary
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.
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 distance of twenty-five feet (7.5 meters); or The noise level on any nearby property does not exceed eighty dBA. Notwithstanding Section 10.48.053A, it is a violation of this chapter to engage in any grading, street construction, demolition or underground utility work within seven hundred fifty feet of a residential area on Saturdays, Sundays and holidays, and during the nighttime period, except as provided in Section 10.48.030.
Full Breakdown
053 lets grading, construction and demolition work exceed the city's baseline noise limits during daytime hours, but only if the equipment carries a functioning noise muffler and either no single device exceeds 87 dBA at 25 feet or the noise level at any nearby property stays under 80 dBA. on weekends. 030. m. 040 nighttime decibel caps, 50 dBA residential and 55 dBA nonresidential, rather than the relaxed daytime construction standard. m. Monday through Friday, barred entirely on weekends and holidays, and requires 24 hours' advance notice except in an emergency.
Violations & Fines
Violating the construction noise rules is a misdemeanor under § 10.48.070, punishable per Chapter 1.12 by a fine of up to $1,000, up to six months in jail, or both, though the City Attorney may instead pursue it as an infraction with fines of $100, $200 and $500 for successive violations within a year. Each day the violation continues counts as a separate offense.
Frequently Asked Questions
What hours can construction happen in Cupertino?
Is construction allowed on weekends near homes in Cupertino?
Can a homeowner do construction work on a holiday?
Sources & Official References
Other rules in Cupertino
How Cupertino compares: Cities with the Strictest Construction Hours·California rules heatmap·Compare Cupertino to another location·View the California noise ordinances overview
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Construction Hours in Nearby Cities
How other cities in Santa Clara County handle construction hours.