ADU rules in Eugene, OR — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Eugene permits ADUs per Oregon state law (ORS 197.312). Both attached and detached ADUs are allowed. Detached ADUs up to 800 sq ft. Oregon prohibits cities from requiring owner-occupancy.
Oregon law (ORS 197.312) requires cities to allow ADUs in residential zones. Eugene implements these requirements through its land use code. Both attached and detached ADUs are permitted. Detached ADUs may be up to 800 square feet. Attached ADUs are limited to 50% of the primary dwelling's living area or 800 sq ft, whichever is less. Building permits are required. Oregon's statewide rules prohibit cities from requiring owner-occupancy or additional parking in many cases. Eugene has embraced ADUs as part of its housing strategy and offers resources for ADU builders.
Unpermitted ADUs face code compliance action. Units not meeting building code may be ordered vacated.
Eugene, OR
Eugene Code §4.083 prohibits construction activities between 7 PM and 7 AM. Operating pile drivers, pneumatic hammers, and heavy equipment is restricted duri...
Eugene, OR
Eugene addresses barking dogs through its noise disturbance ordinances and animal control regulations. Persistent barking that disturbs neighbors is a violat...
Eugene, OR
Eugene Code §4.083 and §6.750 regulate noise disturbances. Residential heat pumps and mechanical devices must not exceed 60 dBA at the property line. Lawn eq...
Eugene, OR
Eugene requires driveways to meet city engineering standards. Vehicles must not block sidewalks. Driveway construction requires permits from Public Works.
Eugene, OR
Eugene regulates on-street parking through its traffic code. Vehicles may not park in one location for more than 24 hours in some zones. Downtown has metered...
Eugene, OR
Eugene restricts RV and boat parking in residential areas through its land use code. Recreational vehicles should be stored on private property and may need ...
See how Eugene's adu rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.