433 Callan Avenue is a well-maintained, multi-tenant office building located in the Estudillo Estates–Glen area of San Leandro, a well-established commercial district with strong access to regional transportation and nearby amenities. The three-story property totals approximately 11,466 square feet and sits on a 0.35-acre parcel, offering a professional environment suitable for medical, professional services, and general office users. Built in 1969, the building features efficient floor plates, full HVAC, and common restrooms on each floor, along with an elevator serving all levels. The property is configured with 15 office suites, allowing for flexible tenancy and a diverse occupant mix. Ample on-site parking (approximately 31 spaces) supports tenant and visitor demand