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Noise and construction hours in Mammoth Lakes

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

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

What Mammoth Lakes's code says

Mammoth Lakes code What Mammoth Lakes's code adds
Leaf blowers and equipment
  • No powered lawn or garden tools 10:00 p.m.–7:00 a.m. if noise disturbs across a home or business property line.
    § 8.20.090 · code text
    Operating or permitting the operation of any mechanically powered saw, sander, drill, grinder, lawn or garden tool, or similar tool between 10:00 p.m. and 7:00 a.m., so as to create a noise disturbance across a residential or commercial real
Quiet hours
  • Quiet hours are 10:00 p.m. to 7:00 a.m.
    Applies: Radios, TVs, musical instruments, loudspeakers and similar devices that disturb across a home's property line.
    § 8.20.090 · code text
    Between the hours of 10:00 p.m. and 7:00 a.m. in such a manner as to create a noise disturbance across a residential or commercial real property line
Noise limit at homes
  • Noise may not exceed 40 dBA.
    Applies: One- and two-family homes, rural suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 10:00 p.m.—7:00 a.m. | 40 | 45 | 50
  • Noise may not exceed 45 dBA.
    Applies: One- and two-family homes, suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 10:00 p.m.—7:00 a.m. | 40 | 45 | 50
  • Noise may not exceed 50 dBA.
    Applies: One- and two-family homes, urban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 10:00 p.m.—7:00 a.m. | 40 | 45 | 50
  • Noise may not exceed 50 dBA.
    Applies: One- and two-family homes, rural suburban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 55 dBA.
    Applies: One- and two-family homes, suburban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 60 dBA.
    Applies: One- and two-family homes, urban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    One- and two-family residential | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 45 dBA.
    Applies: Multiple-dwelling public space, rural suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 10:00 p.m.—7:00 a.m. | 45 | 50 | 55
  • Noise may not exceed 50 dBA.
    Applies: Multiple-dwelling public space, suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 10:00 p.m.—7:00 a.m. | 45 | 50 | 55
  • Noise may not exceed 55 dBA.
    Applies: Multiple-dwelling public space, urban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 10:00 p.m.—7:00 a.m. | 45 | 50 | 55
  • Noise may not exceed 50 dBA.
    Applies: Multiple-dwelling public space, rural suburban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 55 dBA.
    Applies: Multiple-dwelling public space, suburban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 60 dBA.
    Applies: Multiple-dwelling public space, urban zone, 7:00 a.m.—10:00 p.m.; for more than 30 minutes in any hour.
    § 8.20.070 · code text
    Multiple dwelling residential public space | 7:00 a.m.—10:00 p.m. | 50 | 55 | 60
  • Noise may not exceed 35 dBA.
    Applies: Multifamily homes, all noise zones, 10:00 p.m.—7:00 a.m., inside a neighboring unit; for more than 5 minutes in any hour.
    § 8.20.080 · code text
    All | Multifamily | 10:00 p.m.—7:00 a.m. | 35
  • Noise may not exceed 45 dBA.
    Applies: Multifamily homes, 7:00 a.m.—10:00 p.m., inside a neighboring unit; for more than 5 minutes in any hour.
    § 8.20.080 · code text
    Residential | 7:00 a.m.—10:00 p.m. | 45

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the noise rules and construction hours in Mammoth Lakes?

Mammoth Lakes's code: Noise may not exceed 40 dBA. (One- and two-family homes, rural suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.) (§ 8.20.070); Noise may not exceed 45 dBA. (One- and two-family homes, suburban zone, 10:00 p.m.—7:00 a.m.; for more than 30 minutes in any hour.) (§ 8.20.070).

General information, not legal advice.

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Mammoth Lakes Municipal Code — full text