(1) Residential homes shall be a permitted use in:

(a) Any residential zone, including a residential zone which allows a single-family dwelling; and

(b) Any commercial zone which allows a single-family dwelling.

(2) A city or county may not impose any zoning requirement on the establishment and maintenance of a residential home in a zone described in subsection (1) of this section that is more restrictive than a zoning requirement imposed on a single-family dwelling in the same zone.

(3) A city or county may:

(a) Allow a residential home in an existing dwelling in any area zoned for farm use, including an exclusive farm use zone established under ORS § 215.203;

(b) Impose zoning requirements on the establishment of a residential home in areas described in paragraph (a) of this subsection, provided that these requirements are no more restrictive than those imposed on other nonfarm single-family dwellings in the same zone; and

(c) Allow a division of land for a residential home in an exclusive farm use zone only as described in ORS § 215.263 (9). [1989 c.564 § 4; 2001 c.704 § 5]