Nampa, ID Noise Ordinances: Construction Hours (2026)
Construction hours in Nampa, ID, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Quiet hours
- 11:00 p.m. to 7:00 a.m.
- Night construction
- Requires special permit
- Permit issuer
- Building dept. or city engineer
- First violation
- Infraction citation
- 3rd violation/1 yr
- Misdemeanor
Summary
Nampa bars all loud noise, including construction, between 11 p.m. and 7 a.m.; contractors may only work those hours with a special permit from the building department or city engineer.
Between the hours of 11:00 p.m. one day and 7:00 a.m. the next day, it shall be unlawful for any person, or business to make, cause, or allow loud or offensive noise... Sounds caused by construction during the period prohibited by section 6-7-3 of this chapter pursuant to a special permit approved by the building department or the city engineer.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 16 Update 1).
Full Breakdown
Nampa's general noise ordinance prohibits loud or offensive noise citywide between 11:00 p.m. and 7:00 a.m. under section 6-7-3. Construction noise falls under that same nighttime ban, section 6-7-5.I exempts it only if the contractor first obtains a special permit approved by the city's building department or the city engineer. A companion zoning provision, section 10-1-9.A, repeats the identical nighttime exemption for construction noise on commercial or industrial property abutting residential zoning. Outside the 11 p.m.-7 a.m. window, or once a special permit is issued, construction noise is not separately capped by decibel level under this chapter.
Violations & Fines
First offense is an infraction; a third violation within one year of the first conviction is a misdemeanor under section 6-7-6.
Frequently Asked Questions
Can contractors run construction equipment at night in Nampa?
What happens if a contractor violates Nampa's quiet hours?
Sources & Official References
Other rules in Nampa
How Nampa compares: Cities with the Strictest Construction Hours·Compare Nampa to another location·View the Idaho noise ordinances overview
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