Any nonconforming use existing at the effective date of this chapter, the eighth day of May 1926, or that became nonconforming by reason of any amendment thereto (but not to any use that is established in violation of law) may be continued, and any existing building designed, arranged or devoted to a nonconforming use may be reconstructed and structurally altered, subject to the following regulations:
A.
The cost of reconstruction or the cost of structural alterations made in such a building shall in no case exceed 50% of its structural value, nor shall the building be enlarged unless the use therein is changed to a conforming use.
B.
No nonconforming use shall be extended at the expense of a conforming use.
C.
If any nonconforming use is changed to or replaced by a conforming use, the land and building theretofore devoted to such nonconforming use shall thereupon be subject to all the regulations as to the use for the district in which such land or building is located, as if such nonconforming use had never existed.
D.
No nonconforming use which shall have ceased for a continuous period of one year or more shall be resumed, nor shall it be replaced by another nonconforming use. The land and building heretofore devoted to such nonconforming use shall thereupon be subject to all the regulations as to use for the district in which such land and building are located, as if such nonconforming use had never existed.
E.
The alteration or addition does not increase the degree of nonconformity.[1]