Or. Rev. Stat. § 469.735
As used in ORS 469.730 to 469.745, unless the context requires otherwise:
(3) “Public building” means any publicly or privately owned building constructed prior to January 1, 1978, including the outdoor areas adjacent thereto, which:
[1977 c.853 §2; 1987 c.414 §154; 1993 c.744 §114]