For the purposes of this chapter, the Township of Buffalo is divided into the zoning use districts listed hereunder and as shown by the district boundaries on the Zoning Map:

District boundaries shown on the Zoning Map are intended to follow property lines, center lines of roads, streams and transportation rights-of-way, boundaries of identifiable physical features or measured distances from identifiable points of reference. When the Zoning Officer cannot definitely determine the location of a district boundary by reference to such center lines, by the scale or dimensions set forth on the Zoning Map, or by the fact that it clearly coincides with the property line, he shall refuse to take action; and the Zoning Hearing Board, upon appeal, shall interpret the location of the district boundary with reference to the Zoning Map and the purposes set forth in all relevant provisions of this chapter.

Three classifications of uses varying in their impact upon the community and in the procedures by which they are approved may be established in a zoning use district.

Dimensional standards are established for each use district, setting forth minimum standards for lot sizes and yard requirements for the placement of structures and uses of land. Such standards shall apply to any structures or uses established or expanded after the effective date of this chapter. Any lot of record existing at the effective date of this chapter then held in separate ownership from adjoining lots may be used for the erection of a structure conforming to the use regulations of the district in which it is located, although its area and width may be less than the minimum requirements of this chapter, provided its use would have complied with the area and width requirements of the Zoning Ordinance amended by this chapter.