Garage conversion rules in Beaverton, OR — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to ADUs are permitted in Beaverton. Existing legal non-conforming structures can be converted to ADUs provided the conversion does not increase the non-conformity. Building, mechanical, plumbing, and electrical permits are required. The converted unit must have a separate exterior entrance and meet all ADU standards.
Under Beaverton Development Code and Oregon state law, conversion of existing detached structures (including garages) to ADUs is permitted. The conversion of a legal non-conforming structure is allowed provided the conversion does not increase the non-conformity. The converted ADU must provide complete independent living facilities with a separate exterior entrance, and cannot have inter-communicating doors with the primary dwelling. Building, mechanical, plumbing, and electrical permits are required. Size limits for ADU conversions follow the standard rules: up to 800 sq ft for detached ADUs. No owner-occupancy requirement and no additional parking requirement near transit (Oregon HB 2001).
Unpermitted conversion: building code enforcement. Must bring to code or restore. Safety violations: immediate correction.
Beaverton, OR
Barking-dog complaints in Beaverton are handled by Washington County Animal Services under Washington County Code Chapter 6.04 (Animals), which defines a pub...
Beaverton, OR
Beaverton strictly limits residential construction noise to 7 AM – 7 PM under Municipal Code Section 5.15.030. Construction activities including erection, ex...
Beaverton, OR
Beaverton Code Chapter 5 (Public Nuisances - Noise Control) sets nighttime quiet hours from 10 PM to 7 AM, during which yelling, shouting, whistling, singing...
Beaverton, OR
Beaverton defines a driveway as any alley or access drive from a street to public or private property. No parking is permitted on sidewalks, curbs, planting ...
Beaverton, OR
Recreational vehicles, trailers, boats, and similar non-transportation devices parked on Beaverton public streets must be moved at least 1/10 mile within 48 ...
Beaverton, OR
Motor trucks as defined by the Oregon Vehicle Code are prohibited from parking on Beaverton streets between 9 PM and 7 AM near residences, motels, apartments...
Side-by-side rule comparisons with other cities in Washington County.
See how other cities in Washington County handle garage conversions.
See how Beaverton's garage conversions rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.