All buildings and structures in the C-2 commercial-residential zone shall be set back at least twenty-five feet from any public street. Area, width and location requirements for buildings arranged, intended or designed primarily for residential use, shall be set back from the front property line a distance of at least twenty-five feet. Minimum side yards shall be at least eight feet or less by conditional use permit, with a minimum rear yard setback of fifteen feet. Street-side setbacks for corner lots shall be no less than twenty feet in width. No area and width requirements shall apply to dwellings located above the ground floor when the ground floor is devoted exclusively to a commercial use permitted in the zone lot coverage of the principal use shall not exceed fifty percent of the total lot area. (Ord. 08-24 (part), 2008: Ord. 93-16 (part), 1993)