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Noise and construction hours in Fairfax

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

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

What Fairfax's code says

Fairfax code What Fairfax's code adds
Noise limit at homes
  • Noise may not exceed 40 dBA.
    Applies: Zone A (residential), 10:00 p.m. to 7:00 a.m.; at the complainant's property line for more than 7.5 minutes in any 15-minute period.
    § 8.20.050 · code text
    | A (Residential) | Night | 10:00 p.m. - 7:00 a.m. | 40 |
  • Noise may not exceed 50 dBA.
    Applies: Zone A (residential), 7:00 a.m. to 10:00 p.m.; at the complainant's property line for more than 7.5 minutes in any 15-minute period.
    § 8.20.050 · code text
    | A (Residential) | Day | 7:00 a.m. - 10:00 p.m. | 50 |
  • Noise may not exceed 50 dBA.
    Applies: Zone B (multiple-dwelling residential), 10:00 p.m. to 7:00 a.m.; at the complainant's property line for over 7.5 minutes in any 15-minute period.
    § 8.20.050 · code text
    | B (Multiple Dwelling, Residential) | Night | 10:00 p.m. - 7:00 a.m. | 50 |
  • Noise may not exceed 55 dBA.
    Applies: Zone B (multiple-dwelling residential), 7:00 a.m. to 10:00 p.m.; at the complainant's property line for over 7.5 minutes in any 15-minute period.
    § 8.20.050 · code text
    | B (Multiple Dwelling, Residential) | Day | 7:00 a.m. - 10:00 p.m. | 55 |

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the noise rules and construction hours in Fairfax?

Fairfax's code: Noise may not exceed 40 dBA. (Zone A (residential), 10:00 p.m. to 7:00 a.m.; at the complainant's property line for more than 7.5 minutes in any 15-minute period.) (§ 8.20.050); Noise may not exceed 50 dBA. (Zone A (residential), 7:00 a.m. to 10:00 p.m.; at the complainant's property line for more than 7.5 minutes in any 15-minute period.) (§ 8.20.050).

General information, not legal advice.

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