(A) (1) A non-conforming use of a building and land at the time of the adoption of the zoning ordinance incorporated in this chapter may be continued, although such use does not conform with the provisions hereof.
(2) Such use may be extended throughout the building, provided no structural alterations, except those required by law or ordinance, are made therein.
(B) The following additional regulations shall apply.
(1) Whenever a district shall be hereafter changed, any then existing non-conforming use in such changed district may be continued, provided all other regulations governing the use are complied with.
(2) A non-conforming use that is changed to a conforming use shall not thereafter be changed back to any non-conforming use.
(3) A non-conforming use, if changed to a more restricted non-conforming use, shall not thereafter be changed unless to a still more restricted use.
(4) Where a building located in a district restricted against its use has been destroyed by fire or other calamity to the extent of not more than one-half of its assessed value, a permit may be granted for its reconstruction within a period of not to exceed six months from the date of such fire or other calamity.
(5) Where a non-conforming use has existed, and such non-conforming use is not exercised or continued for a period of one year, such non-conforming use shall cease to exist and the premises and building, or buildings, which have been subjected to such non-conforming use shall thereafter conform to the use and regulation of the district in which such premises or building is located.
(Prior Code, § 3.0104)