Single-Family, Two-Family and Multiple-Family Structures Other than Garden Apartments and High Rise Apartment Buildings. Off-street parking spaces shall be as specified in the "Residential Site Improvement Standards" of the New Jersey Administrative Code, Title 5, Chapter 21, latest edition except that for one (1) family dwellings and two (2) family dwellings, an access driveway of ten (10) or more feet in width and having a length of not less than forty (40) feet shall be permitted to account for two (2) of the required spaces for the dwelling types. All other driveways shall account for one (1) space.