The S. Zollingers Building in Piqua, Ohio is a concrete cast-in-place, nationally-registered historic structure. The 40,000gsf former wholesale grocery warehouse has been vacant for a generation. Built with six rows of massive interior columns, the building lays out well for conversion from a warehouse to a commercial and residential use. However, the fenestration is small by today’s standards and the window sills on the upper stories are four to five feet above the finished floor. The east façade, facing the river, is blank as it is a former party wall.
A new three story addition on the east elevation negotiates the change in grade to the main floor and opens-up the former blank wall that faces the river.