Location of all existing buildings, wells, sewage disposal facilities, utility installations, drainage facilities, ponds, swamps, watercourses, rock outcroppings and existing wooded areas on the site for which the special exceptions are being sought, location of all proposed structures, signs, loading areas, parking areas including stalls and curbing, all planting, landscaping and buffer areas, proposed water supply and sewage disposal systems, all storm drainage structures and facilities, and all gas, electric and other utility installations. Gross floor area of all buildings to remain or to be built on the lot shall be shown.