Construction hours in Multnomah County, OR — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Multnomah County unincorporated areas follow Oregon state noise standards (ORS 467/DEQ OAR 340-035) for construction noise. No separate county construction hours ordinance exists. Oregon DEQ baseline limits apply. Construction noise during standard business hours generally does not violate state standards.
In unincorporated Multnomah County, construction noise is governed by Oregon state law rather than a specific county ordinance. Oregon DEQ OAR 340-035 sets maximum sound levels by zone type (residential, commercial, industrial). Standard daytime construction during business hours (7 AM–10 PM) is generally compliant with state standards. Outside these hours, construction must meet stringent DEQ baseline limits. Oregon Building Codes Division (Oregon's adopted IBC/IRC) applies to all construction in the county. Noise complaints about construction in unincorporated areas should be directed to Multnomah County Sheriff: 503-988-0560.
Stop-work orders for violations. Fines $100 to $500 per occurrence. Repeat offenders may lose permit privileges.
Multnomah County, OR
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Multnomah County, OR
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Multnomah County, OR
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Multnomah County, OR
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Multnomah County, OR
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Multnomah County, OR
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See how Multnomah County's construction hours rules stack up against other locations.
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