Front yard. The uniform setback provisions of § 470-3.03B shall apply to all residential buildings, structures, and additions. If a uniform setback does not exist, the front yard setback shall be not less than 40 feet, except that when adjacent to a primary street, the front yard setback shall be not less than 50 feet, and when adjacent to a major arterial street, the front yard setback shall be not less than 60 feet. Notwithstanding the provisions of the immediately preceding sentence, (i) a lot (see definition in § 470-32.13) which is of record as of July 28, 1998, or (ii) any lot included in a proposed plat, building envelope or site in a proposed site condominium, or building site located in any other type of development which is on file with the Township as of July 28, 1998, shall only be required to have a front yard setback of 40 feet; and shall not be required to have a front yard setback of 50 feet if on a primary street or 60 feet if on a major arterial street.