The lawful use of a building or premises existing on the fourth day of August 1930, or authorized by a building permit issued prior thereto, may be continued, although such use does not conform to the provisions of this chapter.
No building which is designed or arranged for, or intended for or devoted to, a use not permitted in the district in which such building is located shall be enlarged, extended, reconstructed or structurally altered, except as set forth in Subsection B or C, unless such use is changed to a use permitted in the district in which such building is located.
A building devoted to a nonconforming use may be reconstructed or structurally altered to an extent not greater than 50% of the current fair market value of the building, exclusive of foundations, provided that no use in such building is changed or extended.
A nonconforming use of a building or premises shall not be extended, but the extension of a use to any portion of a building which portion was erected and designed for such nonconforming use on August 4, 1930, shall not be deemed an extension of a nonconforming use.
A nonconforming use shall not be changed unless changed to a conforming use. No nonconforming use, if once changed to a use permitted in the district in which it is located, shall be changed back to a nonconforming use.
No nonconforming use which shall have been discontinued for a period exceeding one year shall be resumed or replaced by any other nonconforming use.
It shall be the duty of every owner of land or building devoted to a lawful nonconforming use to obtain a certificate of occupancy therefor. The Code Enforcement Officer shall have the authority to issue such certificates upon submission of documentary evidence establishing such nonconforming use.