Commerical. Great for owner-user or investment opportunity. Freestanding 1 story office building. On the Main Street in Fontana on highly trafficked Sierra Avenue. 30, 800 -/+ sqft Lot size. 110' frontage on Sierra and 280' deep, office is 758 -/+ sqft. 45, 000 car count traffic on Sierra Avenue. Previous used was a U-Haul rental yard. Build your dream building here.