Property Maintenance in Multnomah County, OR (2026)

2 county-level rules, plus city-specific rules for 2 cities in Multnomah County, Oregon.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Multnomah County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Property Blight

In unincorporated Multnomah County, the building official can declare a dangerous or dilapidated structure a public nuisance, order the owner to fix or demolish it within 48 hours of notice, and take the case to the Board if the owner refuses.

Unsafe Building Nuisance Abatement, Multnomah County

Significant Restrictions

Multnomah County Code § 29.007(A)

Upon determination by the building official that any building or structure is unsafe as provided in § 29.006 of this subchapter, the building official shall furnish to the owner and the person in charge of the building or structure, written notice of the determination and its basis. The notice shall require repair, improvement, demolition, removal or elimination of the causes creating the unsaf...

Full ordinance details →Official source ↗

Vacant Lot Maintenance

Multnomah County code makes uncontrolled or uncultivated weeds, brush, or grasses a nuisance on any property, including vacant lots, when they harbor rodents or vectors, spread pollen, create a fire hazard, or produce toxins harmful to people or animals.

Multnomah County Bans Overgrown Weeds on Lots

Some Restrictions

Multnomah County Code § 15.229(A)(7)

(A) It shall be unlawful for any person to maintain or allow to exist the following things, practices or conditions on any property or within public road rights-of-way adjacent to that property, which shall be nuisances: ... (7) Uncontrolled or uncultivated growth of weeds, brush, or grasses which offer vector or rodent harborage, contribute noxious pollens to the atmosphere, constitute a fire ...

Full ordinance details →Official source ↗

Property Maintenance by City in Multnomah County

2 cities in Multnomah County have their own property maintenance rules. Each link goes to that city's dedicated page with code citations.

PortlandPop. 652,503

3 verified rules • Property Blight, Snow & Sidewalk Clearing

GreshamPop. 114,247

3 verified rules • Property Blight, Snow & Sidewalk Clearing

All Multnomah County ordinances

See every category we cover for Multnomah County: parking, noise, fences, fires, animals, pools, and more.

Multnomah County Ordinance Hub →