Building Description The Main Street Plaza is a well-maintained +/- 8,800 sf. multi-tenant retail strip center with a healthy tenant mix and great exposure on Main Street (Route 83). The building offers ample signage and shared access points with the properties to the north and south. Call today for details!!! Location Description The Main Street Plaza is located in Antioch, IL on Main Street (Route 83) just south of Route 173 and the historic downtown Antioch district. Antioch is an up and coming city located in Lake County, IL midway between Chicago, IL and Milwaukee, WI.