(a) No building or structure shall be located, erected, constructed, reconstructed, enlarged or structurally altered except in conformity with the area, height and yard regulations of the district in which such building or structure is located or except as specifically hereinafter provided.
(b) No building, structure or lot shall be used for any purpose other than that which is permitted in the district in which such building, structure or lot is located except as specifically hereinafter provided.
(c) No yard or other open space existing about any building or structure shall be so reduced in area or dimension as to make it less than the minimum required by this Zoning Ordinance except as specifically hereinafter provided.
(d) No lot or acreage held under one ownership at the time of the effective date of this Zoning Ordinance (Ordinance 51-71, passed December 13, 1971) shall be reduced or subdivided in any manner below the minimum area and yard provisions required by this Ordinance except as specifically hereinafter provided.
(Ord. 51-71. Passed 12-13-71.)