If a lawful use of a structure, or of a structure and land in combination, exists upon the effective date of the adoption or amendment of this Zoning Ordinance that would not be permitted in the district under this Zoning Ordinance, the lawful use may be continued, so long as it remains otherwise lawful, subject to the following provisions:
(a) No existing structure devoted to a use not permitted by this Zoning Ordinance in the district in which it is located, shall be enlarged, extended, constructed, reconstructed, moved or structurally altered except in changing the use of the structure to a use permitted in the district in which it is located.
(b) A nonconforming use may be extended throughout any part of a building that was manifestly arranged or designed for such use and which existed at the time of the adoption or amendment of this Zoning Ordinance, but no such use shall be extended to occupy any land outside such building.
(c) If no structural alterations are made, a nonconforming use of a structure, or structure and premises, may be changed to another nonconforming use, provided that the Board of Zoning Appeals, either by general rule or by making findings in the specific case, finds that the proposed use is equally appropriate or more appropriate to the district than the existing nonconforming use. In permitting such change, the Board may require appropriate conditions and safeguards in accordance with the purpose and intent of this Zoning Ordinance. Where a nonconforming use of a structure, land, or structure and land in combination, is hereafter changed to a more conforming use, it shall thereafter be changed to a less conforming use.
(d) A structure, or a structure and land in combination, in or on which a nonconforming use is superseded by a permitted use, shall thereafter conform to the regulations of the district in which such structure is located, and the nonconforming use may not thereafter be resumed.
(e) Except as to those matters set forth in subsection (g) hereof, a nonconforming use of a structure, or a structure and land in combination, which is discontinued or ceases to exist for six (6) consecutive months, shall thereafter be used in conformity with the regulations of the district in which it is located. Structures occupied by seasonal uses shall be exempted from this provision.
(f) Except as to those matters set forth in subsection (g) hereof, where nonconforming use status applies to a structure and land in combination, removal of the structure shall eliminate the nonconforming status of the land.
(g) If an existing structure is destroyed by any means, said existing structure may be reconstructed within one (1) year from the date of destruction without regard to conformity with this Zoning Ordinance, so long as the prior use of such structure is continued, or a conforming use is established.