(a) The district boundary lines on the District Map are intended to follow either streets or service street or lot lines; and where the districts designated on the Map are bounded approximately by such street, alley or lot lines, the street or service street or lot shall be construed to be the boundary of the district, unless such boundary is otherwise indicated by dimensions noted on the Map. In the case of unsubdivided property, the district boundary lines shall be determined by dimensions appearing on the Zoning District Map.
(b) Whenever any street, service street, or other public way is vacated by official action of Council, the zoning district adjoining each side of such street, service street or public way shall be automatically extended to the center of such vacation and all area included in the vacation shall then and henceforth by subject to all appropriate regulations of the extended districts. (Ord. 914. Passed 11-8-66.)