OR SB438

Property owners outside urban growth boundaries may build an additional single-family or manufactured dwelling for occupancy by relatives, including parents, siblings, children, spouses, domestic partners, grandchildren, and grandparents

The property must already have an existing single-family dwelling, cannot be in an urban reserve area, and the owner must be an individual rather than an entity

New dwellings must comply with sanitation, wastewater, groundwater restrictions, and wildfire safety requirements including defensible space and construction standards in high hazard zones

Dwellings cannot be used for vacation rentals; if a family member moves out, the owner may rent to non-relatives for up to 18 months before the unit must remain vacant until another family member occupies it

Counties cannot approve subdivision or partition of the property to separate the original dwelling from the new family dwelling; takes effect 91 days after the 2025 legislative session adjourns