1211 W. 6th Street presents a rare opportunity to acquire a single-tenant medical office (Ambulatory Surgery Center) in a high-growth Ontario submarket. The offering presents a 13,985+/- sqft, one-story commercial building/outpatient surgical center - fully leased to Ontario Advanced Surgery Center. The property is situated on an expansive 89,559+/- sqft lot, behind a secured and gated entry with 80 parking spaces (5.70/1,000 SF). Built in 1983 with renovations made in 2003, the well-maintained structure is strategically located within an Ontario Redevelopment project, nearby planned commercial, retail, and entertainment developments including a multi-plex theater, restaurants, and office space. The property offers excellent visibility and accessibility, with immediate access to the I-10 freeway. This is an exceptional high-quality medical office investment opportunity with a creditworthy ambulatory tenant in the evolving Inland Empire.