Street Design Standards. Roads for development with 20 dwellings or less, shall have a minimum right-of-way width of 40 feet and a minimum pavement width of 28 feet. Additionally, cul-de-sacs for development with 20 dwellings or less, shall have a minimum right-of-way radius of 50 feet and a minimum pavement radius of 40 feet. Roads for development with more than 20 dwellings, shall have a minimum right-of-way width of 50 feet and a minimum pavement width of 30 feet. Additionally, cul-de-sacs for developments with more than 20 dwellings, shall have a minimum right-of-way radius of 60 feet and a minimum pavement radius of 50 feet.