Oregon Revised Statutes Property Rights and Transactions § 92.176

(1) A county or city may approve an application to validate a unit of land that was created by a sale that did not comply with the applicable criteria for creation of a unit of land if the unit of land:

(2) Notwithstanding subsection (1)(b) of this section, a county or city may approve an application to validate a unit of land under this section if the county or city approved a permit, as defined in ORS 215.402 or 227.160, respectively, for the construction or placement of a dwelling or other building on the unit of land after the sale. If the permit was approved for a dwelling, the county or city must determine that the dwelling qualifies for replacement under the criteria set forth in ORS 215.755 (1)(a) to (e).

(3) A county or city may approve an application for a permit, as defined in ORS 215.402 or 227.160, respectively, or a permit under the applicable state or local building code for the continued use of a dwelling or other building on a unit of land that was not lawfully established if:

(4) An application to validate a unit of land under this section is an application for a permit, as defined in ORS 215.402 or 227.160. An application to a county under this section is not subject to the minimum lot or parcel sizes established by ORS 215.780.

(5) A unit of land becomes a lawfully established parcel when the county or city validates the unit of land under this section if the owner of the unit of land causes a partition plat to be recorded within 90 days after the date the county or city validates the unit of land.

(6) A county or city may not approve an application to validate a unit of land under this section if the unit of land was unlawfully created on or after January 1, 2007.

(7) Development or improvement of a parcel created under subsection (5) of this section must comply with the applicable laws in effect when a complete application for the development or improvement is submitted as described in ORS 215.427 (3)(a) or 227.178 (3)(a).