Sammamish, WA Noise Ordinances: Construction Hours (2026)
Construction hours in Sammamish, 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
- 7:00 a.m. to 8:00 p.m.
- Saturday hours
- 9:00 a.m. to 6:00 p.m.
- Sunday
- no construction
- Blackout holidays
- 6 named federal/City holidays
- Exception authority
- City manager or designee only
Summary
Sammamish limits construction activity and construction noise to 7:00 a.m. to 8:00 p.m. on weekdays and 9:00 a.m. to 6:00 p.m. on Saturdays under Municipal Code 16.05.030. No construction is allowed on Sundays or on six named holidays, and only the City manager can grant an exception.
16.05.030 Hours of construction. Except as approved by the City manager, or designee, to minimize overall public impact and/or inconvenience or otherwise provided in this chapter, the activities and construction noise regulated by this chapter shall be limited to the following hours: (1) Monday through Friday: 7:00 a.m. to 8:00 p.m. (2) Saturdays: 9:00 a.m. to 6:00 p.m. (3) Sundays: no construction. (4) Holidays: No construction will be allowed 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 O2026-598, and legislation passed through August 18, 2026).
Full Breakdown
, and no construction at all on Sundays. Six holidays are named as full construction blackout days: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. Any exception to those hours has to come from the City manager or a designee, granted 'to minimize overall public impact and/or inconvenience,' and once approved, notice of the exception must go out to affected property owners and residents and to the Sammamish police department, delivered verbally, in writing, or by posted signage depending on the scope and duration of the work.
05, the City's construction code chapter, which separately adopts the International Building, Fire, Mechanical, Fuel Gas, and related codes as the State Building Code for Sammamish. 170 makes any violation of the chapter, including the construction-hours rule, subject to SMC Title 23, Civil Code Compliance, rather than the general criminal code, meaning construction-hours violations are treated as code-enforcement infractions rather than misdemeanors.
Violations & Fines
A construction-hours violation is enforced under the Title 23 civil code compliance process (SMC 16.05.170), where SMC 23.100.010 sets civil infractions at up to $1,000 and stop-work-order violations at up to $1,000, plus daily noncompliance penalties of $250 per day for days one through 15, $500 per day for days 16 through 31, and $1,000 per day after that.
Frequently Asked Questions
What are the legal construction hours in Sammamish?
Can a contractor get permission to work outside normal hours in Sammamish?
What's the penalty for working construction hours after 8 p.m. in Sammamish?
Sources & Official References
Other rules in Sammamish
How Sammamish compares: Cities with the Strictest Construction Hours·Compare Sammamish 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.