The height limit of any building constructed, erected, altered, or enlarged shall be the same as in the underlying commercial zone, except that retail department stores may exceed the height limitations of the underlying commercial zone provided all floors in the building are used principally for retail store purposes as defined in section 10-3-3404 of this article; however, no building, structure, or improvement, or any part thereof, designed or intended to be used for a retail store shall exceed one hundred feet (100') in height, measured as set forth in this chapter; or more than six (6) stories, whichever is lesser. (Ord. 76-O-1596, eff. 2-19-1976)