Shed permit rules in Multnomah County, OR — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Sheds under 200 sq ft and under 10 ft height do not require a structural building permit in unincorporated Multnomah County per ORSC. Zoning code setback and lot coverage requirements still apply. Sheds with electrical/plumbing require trade permits.
Oregon Residential Specialty Code exempts non-habitable detached one-story accessory structures of 200 sq ft or less from structural building permits in unincorporated Multnomah County. Multnomah County Zoning Code Chapter 39 setback and lot coverage requirements apply to all accessory structures regardless of permit status. Sheds with electrical, plumbing, or mechanical work require trade permits. Accessory structures within setbacks that are not enclosed must be screened from adjoining lots by fence or landscaping. Sheds cannot have rooftop decks; dormers must be set back at least 5 feet from side and rear lot lines. Contact Building Codes Division: 503-988-3000.
Unpermitted structure: retroactive permit with penalty. Non-compliant setback: modification or removal.
Multnomah County, OR
Multnomah County has no countywide leaf blower ordinance. Portland adopted a phased gas leaf blower ban under City Code Title 18 and Ordinance 191370 (2022),...
Multnomah County, OR
Commercial vehicles on county-maintained roads in unincorporated Multnomah County are subject to Oregon state commercial vehicle regulations (ORS Title 59, O...
Multnomah County, OR
Driveways in unincorporated Multnomah County that access county roads require an approach permit from Multnomah County Land Use and Transportation. Vehicles ...
Multnomah County, OR
Multnomah County does not have a specific RV parking ordinance for unincorporated areas beyond Oregon state law. Oregon state law (ORS 197.493) addresses RV ...
Multnomah County, OR
Parking on county-maintained roads in unincorporated Multnomah County is governed by Oregon state traffic laws and county road rules. Abandoned vehicles may ...
Multnomah County, OR
Multnomah County enforces abandoned vehicle rules under MCC 14.700 on county roads and unincorporated areas. Portland PCC 16.30 applies within city limits. O...
See how Multnomah County's shed rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.