Minimum effective lot widths in a mobile home subdivision shall be forty feet (40') measured at the front building line and minimum lot areas shall be four thousand (4,000) square feet, provided that at least five foot (5') side yards shall be provided on each lot beyond any mobile home and additions thereto, and further provided that in areas not serviced by the public sewer the minimum additional lot area shall be determined by the Health Officer on the basis of safe and sanitary sewer service. The effective lot width of a mobile home shall be determined for interior lots by measuring at right angles across the lot from one diagonal side line to the other, and for corner lots the measurement shall be made at right angles from the diagonal having the greatest divergence from perpendicular to the street, through the midpoint of the rear line of the required front yard to the opposite lot line or an extension thereof. (Prior Code, Sec. 4-52)