A. A nonconforming building or structure existing at the time of adoption of this chapter may be continued, maintained and repaired, except as otherwise provided in this section.
B. A nonconforming building or structure shall not be added to or enlarged in any manner unless the building or structure, including additions and enlargement, is made to conform to all of the regulations of the district in which it is located; provided, however, that if a building or structure is conforming as to use, but nonconforming as to yards or height or off street parking spaces, the building or structure may be enlarged or added to, provided that the enlargement or addition complies with the yard and height and off street parking requirements of the district in which the building or structure is located. No nonconforming building or structure shall be moved in whole or in part to another location on the lot unless every portion of the building or structure is made to conform to all of the regulations of the district in which it is located.
C. Any advertising sign, billboard, commercial advertising structure, or statuary, which is lawfully existing and maintained at the time this chapter became effective, which does not conform with the provisions hereof, shall not be structurally altered and all such nonconforming advertising signs, billboards, commercial advertising structures and statuary, and their supporting members shall be completely removed from the premises not later than three (3) years from the effective date of this chapter. (1986 Code)