Ada County, ID Noise Ordinances: Construction Hours (2026)
Construction hours in Ada County, ID, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Allowed hours
- 7:00 AM to 10:00 PM
- Summer landscaping start
- 6:00 AM (Jun-Aug)
- Separate construction code?
- No; general ordinance applies
- Waivers
- Board of Commissioners
- Penalty
- Misdemeanor
Summary
Ada County has no separate construction-hours ordinance; construction noise falls under the general 10:00 PM to 7:00 AM prohibition in chapter 13. In June, July and August, landscape maintenance may begin at 6:00 AM due to extreme heat.
Due to extreme heat during the summer months of June, July and August landscape maintenance noise may begin at six o'clock (6:00) A.M.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Code current through: Ord. 1018, passed 3-24-2026).
Full Breakdown
Unincorporated Ada County does not set a distinct construction-hours schedule. Construction, landscaping and similar activity is covered by the general noise ordinance (section 5-13-3), which prohibits loud or unusual noise between 10:00 PM and 7:00 AM. The ordinance carves out one seasonal exception: during the summer months of June, July and August, landscape maintenance noise may begin at 6:00 AM because of extreme heat. Contractors working inside a city (Boise, Meridian, Eagle, etc.) must follow that city's own construction-hour rules instead.
Violations & Fines
Construction noise outside permitted hours is a misdemeanor under section 5-13-5, punishable per Idaho Code 18-113. The Board of County Commissioners may grant temporary waivers.
Frequently Asked Questions
Can I get an exception for an early or late project?
When can landscapers start in summer?
Sources & Official References
Other rules in Ada County
How Ada County compares: Cities with the Strictest Construction Hours·Compare Ada County to another location·View the Idaho noise ordinances overview
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