A.
No lot shall be reduced in area or in its dimensions so that:
(1)
The new distances between buildings and street lines, lot lines or other buildings on the same lot shall be less than the distances required under the provisions of this chapter;
(2)
The lot area per family shall be less than the area required;
(3)
The percentage of lot area occupied at the level of any story shall be greater than the percentage permitted to be occupied; or
(4)
The dimensions or area of any court, yard or other open space shall be less than the dimensions or area required.