1115.02 CONFORMITY.
   No building, structure or land shall hereafter be used or occupied, and no building or structure or part thereof shall hereafter be erected, converted, enlarged, constructed, reconstructed, moved or structurally altered unless in conformity with all of the regulations herein specified for the district in which it is located.
   (a)   As set forth herein, no building or other structure shall hereafter be erected or altered:
      (1)   In excess of the required height;
      (2)   With lot area, ground floor area or total floor area less than the minimum required;
      (3)   To accommodate or house a number of families in excess of the number required;
      (4)   To occupy a percentage of lot area in excess of the maximum required;
      (5)   To provide for rear, side or front yards, or other open spaces with less than the minimum dimensions or proportion required;
      (6)   With total floor area less than the minimum required; or
      (7)   In any other manner contrary to the provisions of this Zoning Ordinance.
   (b)   No part of a yard or other open space, or off-street parking or loading space required about or in connection with any building for the purpose of complying with this Zoning Ordinance, shall be included as part of a yard, open space or off-street parking or loading space similarly required for any other building.
   (c)   No yard or lot existing at the time of passage of this 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 this Zoning Ordinance shall meet at least the minimum requirements established by this Zoning Ordinance.
   (d)   No building shall be erected or structurally altered except as specifically provided hereinafter except in conformity with the off-street parking and loading regulations of the district in which such building is located.
   (e)   Every building hereafter erected or structurally altered shall be located on a lot as herein defined and in no case shall there be more than one main building on one lot except as specifically provided in Chapters 1141, 1155 and Section 1105.08 (g).