Oregon Revised Statutes Property Rights and Transactions § 100.520

(1) Except as otherwise provided in the declaration, each unit shall have an easement through each other unit and through the common elements for utility, wiring, heat, plumbing and other service elements, and for reasonable access required to effectuate and continue proper operation of the condominium.

(2) Each unit and all common elements shall have an easement over all adjoining units and common elements for the purpose of accommodating any present or future encroachment as a result of engineering errors, construction, reconstruction, repairs, settlement, shifting, or movement of any portion of the property, or any other similar cause, and any encroachment due to building overhang or projection. There shall be valid easements for the maintenance of the encroaching units and common elements so long as the encroachments shall exist, and except as otherwise provided in subsection (3) of this section, the rights and obligations of owners shall not be altered in any way by the encroachment.

(3) The easement described under subsection (2) of this section does not relieve a unit owner of liability in case of willful misconduct of a unit owner or relieve a declarant or any contractor, subcontractor or materialman of liability for failure to adhere to the plat and any floor plans recorded pursuant to ORS 100.115.

(4) The encroachments described in subsection (2) of this section shall not be construed to be encumbrances affecting the marketability of title to any unit.