ORS 197A.430: Single room occupancies.

(1) As used in this section, “single room occupancy” means a residential development with no fewer than four attached or detached units that are independently rented and lockable and provide living and sleeping space for the exclusive use of an occupant, but require that the occupant share sanitary or food preparation facilities with other units in the occupancy.

      (2) Within an urban growth boundary, each local government shall allow the development of a single room occupancy:

      (a) With up to six units on each lot or parcel zoned to allow for the development of a detached single-unit dwelling; and

      (b) With up to three times the number of units allowed by the maximum density standards of a lot or parcel on which is allowed multiunit housing with five or more dwelling units.

      (3)(a) For a single room occupancy, a local government may not require more parking for every three single room occupancy units than the local government requires for:

      (A) A single detached dwelling, if the single room occupancy development has six or fewer units; or

      (B) A dwelling unit in a multiunit housing development, if the single room occupancy development has more than six units.

      (b) This subsection does not apply to a single room occupancy used as a residential care facility as defined in ORS 443.400.