Construction hours in Redmond, WA — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Redmond permits construction 7 AM to 7 PM weekdays and 9 AM to 6 PM Saturdays under RMC 6.32. No construction on Sundays or legal holidays without a special variance from the city.
Under RMC Chapter 6.32, construction, demolition, grading, and similar activities are exempt from ordinary residential noise limits only during approved hours: 7 AM to 7 PM Monday through Friday, and 9 AM to 6 PM on Saturdays. Sunday and legal holiday construction is prohibited within city limits, including work on the Redmond Technology Center light-rail alignment and Microsoft campus projects unless a noise variance is issued by Public Works. Outside these windows, any construction-site sound clearly audible across a property boundary or 75 feet from the source is treated as a noise disturbance. Major infrastructure projects such as Sound Transit 2 Line construction and Downtown Park projects may apply for an extended-hours construction noise variance, which requires advance public notice to neighbors within 300 feet. Homeowner-performed maintenance (mowing, minor repairs, pressure washing) is generally allowed 7 AM to 10 PM without a permit.
After-hours construction: civil infraction with fines starting at $250. Repeat violations can trigger stop-work orders from Redmond Planning and Community Development.
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Side-by-side rule comparisons with other cities in King County.
See how other cities in King County handle construction hours.
See how Redmond's construction hours rules stack up against other locations.
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