Automotive gasoline stations shall consist of buildings on a lot arranged or designed to be used for the retail sale of oil, gasoline or other fuel and for the conduct of other activities which may include facilities for changing tires, tubes, polishing, greasing, washing or minor repairs as defined. Each station shall maintain an operating air standard for inflating auto tires for public use. The required area for erection or expansion of an automotive gasoline station shall be twenty thousand (20,000) square feet and the required lot frontage shall be one hundred fifty (150) feet.