(a) Each single-family dwelling shall be located on a lot containing not less than nine thousand seven hundred fifty square feet (9,750 sq. ft.) and a lot width of not less than sixty-five feet (65 ft.).
(b) Each two-family dwelling shall be located on a lot containing not less than twelve thousand square feet (12,000 sq. ft.) in area and a lot width of not less than eighty feet (80 ft.).