3 county-level rules, plus city-specific rules for 2 cities in Washington County, Oregon.
Verified from official government sources
Oregon SB 608 (2019) and SB 611 (2023) set a statewide rent cap. For 2026, maximum rent increases are 9.5% (or 6% for mobile home parks with 30+ spaces). Washington County has no additional local rent control.
Oregon SB 608 requires landlord just cause to terminate a tenancy after the first 12 months. No-cause terminations are only allowed in the first year. Washington County enforces the statewide standard; Board Ordinance 888 extends 90-day no-cause notice countywide.
Washington County has no general rental registration or landlord licensing program. Rentals are governed by Oregon Residential Landlord and Tenant Act (ORS 90) and state habitability standards. Portland operates a registry, but the county does not.
City of Gresham — Rental Housing Program: Rental Housing Licenses and Rental Housing Inspection Program
Rental housing licenses — A rental housing license is required to maintain or operate a residential rental property in Gresham. A license is required for all residential rental properties, rented, leased, or let, in exchange for monetary or other compensation, regardless of whether anyone is currently residing in each unit. Properties include rental homes, duplexes, mobile homes, apartments, co...
2 cities in Washington County have their own rental property rules rules. Each link goes to that city's dedicated page with code citations.
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