Construction hours in Monterey, CA — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Monterey County Code does not set fixed construction start/stop hours for unincorporated areas, but construction equipment must not exceed 85 dBA at 50 feet at any time, and from 10 p.m. to 7 a.m. the general 45 Leq / 65 dBA nighttime limits apply.
Chapter 10.60 of the Monterey County Code does not establish dedicated construction work-hour windows. Instead, Section 10.60.030 caps any 'machine, mechanism, device, or contrivance' — which includes construction equipment — at 85 dBA measured 50 feet from the source, unless the equipment is more than 2,500 feet from any occupied dwelling. From 10 p.m. to 7 a.m., the much stricter nighttime limits in Section 10.60.040 (45 Leq dBA and 65 dBA maximum at the property line) apply to construction the same as any other source; only the narrow exemptions in 10.60.040(C) (religious bells, permitted commercial/institutional events, emergency equipment such as chain saws, and commercial agricultural operations) escape that rule. Discretionary project permits issued by HCD-Planning often impose tighter construction-hour conditions on individual projects.
Exceeding 85 dBA at 50 feet, or operating construction equipment overnight in violation of § 10.60.040, may trigger a stop-work notice from Code Enforcement, citation, and possible permit-condition enforcement. Repeated violations may be pursued as nuisances under the general penalty provisions of the Monterey County Code.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Side-by-side rule comparisons with other cities in Monterey County.
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