Portland, OR Short-Term Rentals: Primary-Residence-Only Rule (2026)

1. Accessory use. A Type A accessory short-term rental must be accessory to a residential use on a site. This means that a resident must occupy the dwelling unit for at least 270 days during each calendar year, and unless allowed by Paragraph .040.B.2 or .040.B.3, the bedrooms rented to overnight guests must be within the dwelling unit that the resident occupies.

2. Permit required. A Type A accessory short-term rental requires a Type A accessory short-term rental permit consistent with Subsection 040.C.

3. Allowed structure type. A Type A accessory short-term rental is allowed in all residential structure types when accessory to a residential use.

4. Cap. The number of dwelling units in a multi-dwelling structure, triplex, fourplex, or cottage cluster that can have an accessory short-term rental is limited to 1 unit or 25 percent of the total number of units in the structure or on the site, whichever is greater.

5. Prohibition. Accessory short term rentals are prohibited in a building subject to Chapter 13 of the Uniform Building Code (1970 edition) in effect on September 7, 1972, except when the Fire Marshal’s Office has determined that the building has a fire sprinkler system that protects the exitways.

B. Standards. The following standards apply to Type A accessory short-term rentals. Adjustments are prohibited:

1. Maximum size. A Type A accessory short-term rental is limited to renting a maximum of 2 bedrooms to overnight guests.