Vacant lot maintenance in Multnomah County requires grass/weeds under 10 inches, no trash accumulation, and secure perimeters under MCC 15.601 and PCC 29.20. Portland's Vacant Property Registration PCC 29.10 requires annual registration ($280 first year, escalating). Oregon Goal 7 natural hazards planning also affects vacant floodplain parcels.
Vacant lot owners in Multnomah County must maintain their property under Multnomah County Code 15.601 (Public Health/Nuisances) and in Portland under PCC 29.20 (Nuisance Abatement). Grass, weeds, and noxious vegetation may not exceed 10 inches in height under PCC 29.20.030; unincorporated county threshold is similar at 10 inches. Trash, debris, demolition waste, and illegal dumping must be removed within 10 days of notice. Overgrown blackberry (Rubus armeniacus, a Class B noxious weed) must be cut back from property lines and structures. Perimeter security: open holes, pits, pools of stagnant water, or abandoned foundations must be secured within 30 days of notice. Portland's Vacant Property Registration Program under PCC 29.10 requires owners to register vacant residential buildings and certain vacant lots within 30 days of vacancy — first year $280, second year $560, third year $1,120, maxing at $5,400 by year 10+. Registration must include contact information, insurance certificate, and a vacant building plan. Vacant lots in Special Flood Hazard Areas (SFHAs) along the Willamette, Columbia, Sandy, and Johnson Creek are subject to additional restrictions under the 2024 PICM (Pre-Implementation Compliance Measures) for NFIP-ESA compliance. Portland Vacant Lot Program offers interim community-use licenses. Unpaid abatement costs and registration fees become liens on the property under ORS 93.740.
Unmaintained grass/weeds: $100-$500 fine, municipal mowing at owner expense ($250-$750). Unregistered vacant property: $280-$5,400 registration plus $500 per month non-registration penalty. Unabated debris: $100-$1,000 per day fine.
Gresham, OR
Gresham addresses barking dogs through noise and animal control ordinances. Persistent barking that disturbs neighbors is a violation enforceable through Cod...
Gresham, OR
Gresham permits construction activities between 7 AM and 10 PM per GRC §7.20. Construction noise outside these hours is prohibited in residential areas.
Gresham, OR
Gresham Revised Code §7.20 regulates noise. Residential areas must not exceed 50 dBA between 10 PM and 7 AM, or 60 dBA between 7 AM and 10 PM at the property...
Gresham, OR
Gresham regulates on-street parking with time limits in certain areas. Vehicles must be currently registered and operable. Abandoned vehicles are subject to ...
Gresham, OR
Gresham requires driveways to meet development code standards. Vehicles must not block sidewalks or extend into the public right-of-way. Driveway modificatio...
Gresham, OR
Gresham restricts commercial vehicle parking in residential zones. Large commercial vehicles and heavy equipment may not be stored in residential areas.
Side-by-side rule comparisons with other cities in Multnomah County.
See how Gresham's vacant lot maintenance rules stack up against other locations.
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