A lawful nonconforming structure existing at the time of the adoption or amendment of this chapter may be continued although its size or location does not conform to the lot width, lot area, yard, height, parking, loading, and access provisions of this chapter; however it shall not be extended, enlarged, reconstructed, moved or structurally altered except when required to do so by law or order or so as to comply with the provisions of this chapter.
A. Additions and enlargements to existing nonconforming structures are permitted so long as they do not increase the extent of nonconformity and shall conform to the required building setback lines along roads, water and highways and the yard, height, parking, loading and access provisions of this chapter.
B. Existing nonconforming structures which are damaged or destroyed by fire, explosion, flood or any other event may be reconstructed and insofar as is practicable shall conform to the required building setback lines along streets and highways and the yard, height, parking, loading and access provisions of this chapter.