Every one-story dwelling hereinafter erected in any R-1 District shall have a total ground floor area of not less than eight hundred (800) square feet measured from the outside of the exterior walls, including utility rooms, but excluding cellars, basements, open porches, garages and other spaces that are not used frequently or during extended periods for living, eating or sleeping purposes, except that rooms intended for such purposes which are "roughed in" and are to be completed within a reasonable time not to exceed one (1) year, may be considered in computing such ground floor areas.
Every dwelling of more than one (1) story hereinafter erected in R-1 shall have a total floor area, measured from the outside of the exterior walls, of not less than one thousand four hundred eighty (1,480) square feet, including utility rooms, but excluding cellars, basements, open porches, garages and other spaces that are not used frequently or during extended periods for living, eating or sleeping purposes, except that rooms intended for such purposes which are "roughed in" and are to be completed within a reasonable period of time not to exceed one (1) year, may be considered in computing such total floor area. (1979 Code § 5-4-5)