In any zone in which single-family dwellings are permitted, notwithstanding limitations imposed by other provisions of this title, a single-family dwelling and customary accessory buildings may be erected on any single lot of record at the effective date of adoption or amendment of this title. This provision shall apply even though such lot fails to meet the requirements for area or width, or both. Yard dimensions and other requirements not involving area or width or both shall conform to the regulations for the zone in which such lot is located. For purposes of this section, the preexisting status of a lot must be clearly established by separate tax lot in the records of the Jackson County assessor. No division of any parcel shall be permitted which leaves remaining any lot with width or areas below the requirements stated in this title. [Ord. 817 § 8-3M.220, 2006.]