In applying and interpreting the provisions of this chapter, they shall be held to be minimum requirements adopted for the promotion of the public health, safety, morals, comfort, convenience, and general welfare. The following specific regulations shall apply:
A.
Where a lot is formed from part of a lot already improved, the separation must be made in such a manner as not to impair any of the provisions of this chapter, whether related to the then existing improvements or to a proposed or future new improvement on the lot so formed, and in such a manner that both the remainder of the formed lot and the new lot so formed shall comply with the lot area and width provisions of this chapter.
B.
A minimum required lot or yard size for one building or structure shall not be used as any part of a required lot or yard for a second structure.
C.
The required lot or yard for an existing building or structure shall not be diminished below the minimum requirements of this chapter.
D.
The parking spaces required for one building or structure or use shall not be included in the computation of required parking spaces for a second building or structure or use.