important alert
Presidents Day closure

Most City of Portland offices will be closed Monday, Feb. 16. Recreation centers may be open, check before you go.

informational alert
Portland and the federal government

Learn about our sanctuary city status, efforts to block federal overreach: Portland.gov/Federal

Submittal Requirements - 1 and 2 Family Residential: Adding a Dwelling Unit (ADU Guidelines)

Printable Information
This handout describes the information that must be submitted when applying for a permit to convert a house to
a duplex or to add an accessory dwelling unit (ADU) to an existing house.
Updated
Back to top