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San Dimas · Building on your lot

Noise and construction hours in San Dimas

San Dimas's own rules on noise and construction hours, with the code text for every value.

Each rule below links to the section of the San Dimas Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What San Dimas's code says

San Dimas code What San Dimas's code adds
Construction hours on weekdays
  • 7 a.m. to 8 p.m.; permit can allow other times; emergency work is exempt.
    Applies: In or within 500 feet of a residential zone; unlawful outside these hours and on Sundays and holidays only if it disturbs a reasonable person.
    § 8.36.100 · code text
    between the hours of eight p.m. of one day and seven a.m. of the next day
Construction hours on weekends and holidays
  • Construction allowed 7 a.m. to 8 p.m. on Saturdays; not at any time on Sundays or public holidays.
    Applies: Outdoor work in or within 500 feet of a residential zone that annoys neighbors; a city permit can allow other times; emergencies exempt.
    § 8.36.100 · code text
    between the hours of eight p.m. of one day and seven a.m. of the next day, at any time on Sunday, or at any time on any public holiday
Leaf blowers and equipment
  • Allowed only between 7 a.m. and 8 p.m.
    Applies: Domestic power tools, plus powered model vehicles and loading or unloading vehicles (trash collectors, forklifts, cranes) within 500 feet of a residence.
    § 8.36.090 · code text
    It is unlawful for any person to operate, permit, use or cause to operate, any of the following, other than between the hours of seven a.m. to eight p.m. of any one day:
Quiet hours
  • Quiet hours are 8 p.m. to 7 a.m.
    Applies: Home power tools, powered model vehicles, and loading vehicles within 500 feet of a home.
    § 8.36.090 · code text
    It is unlawful for any person to operate, permit, use or cause to operate, any of the following, other than between the hours of seven a.m. to eight p.m. of any one day:
Noise limit at homes
  • The indoor night noise limit is 35 dBA.
    Applies: Inside a neighboring home at night, measured with windows open.
    § 8.36.070 · code text
    | Night | 35 |
  • The noise limit is 65 dBA.
    Applies: Outdoor living areas.
    § 8.36.070 · code text
    | Exterior living areas | 65 |

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the noise rules and construction hours in San Dimas?

San Dimas's code: 7 a.m. to 8 p.m.; permit can allow other times; emergency work is exempt. (In or within 500 feet of a residential zone; unlawful outside these hours and on Sundays and holidays only if it disturbs a reasonable person.) (§ 8.36.100); The indoor night noise limit is 35 dBA. (Inside a neighboring home at night, measured with windows open.) (§ 8.36.070).

General information, not legal advice.

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