The regulations for each district set forth by the Zoning Ordinance shall be minimum regulations and shall apply uniformly to each class or kind of structure or land, except as hereinafter provided:
(a) No building, structure, or land shall be used or occupied and no building or structure or part thereof shall be erected, constructed, reconstructed, moved, or structurally altered except in conformity with all of the regulations herein specified for the district in which it is located;
(b) No building or other structure shall be erected or altered:
(c) No yard or lot existing at the time of passage of the Zoning Ordinance shall be reduced in dimension or area below the minimum requirements set forth herein. Yards or lots created after the effective date of the Zoning Ordinance shall meet at least the minimum requirements set forth herein;
(1) To provide for greater height or bulk;
(2) To accommodate or house a greater number of families;
(3) To occupy a greater percentage of lot area; and
(4) To have narrower or smaller rear yards, front yards, side yards, or other open spaces than herein required, or in any other manner be contrary to the provisions of the Zoning Ordinance;