Kirkland, WA Noise Ordinances: Construction Hours (2026)
Construction hours in Kirkland, WA, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Weekday hours
- 7 a.m. to 8 p.m.
- Saturday hours
- 9 a.m. to 6 p.m.
- Sunday
- no development activity
- Barred holidays
- 6 named federal/city holidays
- Hours flexibility
- Planning Official can extend/restrict
Summary
Construction and other development activity in Kirkland may only run 7 a.m. to 8 p.m. on weekdays and 9 a.m. to 6 p.m. on Saturdays under KZC 115.25. It's barred entirely on Sundays and six named holidays, and the Planning Official can grant, or further restrict, hours case by case.
1. General – It is a violation of this code to engage in any development activity before 7:00 a.m. or after 8:00 p.m., Monday through Friday, or before 9:00 a.m. or after 6:00 p.m. Saturday. No development activity may occur on Sundays or on the following holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 4945, passed July 21, 2026).
Full Breakdown
KZC 115.25 treats development activity, which includes construction and site work, outside the posted hours as a code violation. The default window is 7:00 a.m. to 8:00 p.m. Monday through Friday and 9:00 a.m. to 6:00 p.m. Saturday, with a full stop on Sundays and on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day.
Subsection (2) gives the Planning Official room to move in both directions. A contractor can get written permission to work outside those hours if the activity won't affect any residential use nearby, if it's needed to keep a publicly funded project serving the whole city from running into costly delays, or if the Public Works Official finds it necessary to avoid unavoidable impacts to traffic, utilities, or other public services. The Planning Official can also tighten the hours on a specific site below the default window if reduced hours would better serve public health, safety and welfare, or if the city has received substantial verifiable complaints that the activity is interfering with residents' health and repose. Before imposing a tighter restriction, the Planning Official must give the property owner one week's written notice, and the restriction can be lifted again once the owner shows the work can be conducted without violating those same standards.
Violations & Fines
Working outside the permitted hours is a direct code violation under KZC 115.25(1), enforced by Kirkland's Planning and Building Department through KMC Chapter 1.12. Violations can draw a notice and order and civil fines starting at $100 per day, rising to $500 per day after 30 days of noncompliance, capped at $50,000 per violation under KMC 1.12.045; unauthorized removal of a posted stop work order carries its own $1,000 fine.
Frequently Asked Questions
What time can construction start in Kirkland?
How late can construction noise run?
Is construction allowed on holidays?
Can a contractor get permission to work outside these hours?
Sources & Official References
Other rules in Kirkland
How Kirkland compares: Cities with the Strictest Construction Hours·Compare Kirkland to another location·View the Washington noise ordinances overview
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Construction Hours in Nearby Cities
How other cities in King County handle construction hours.