11-4-1: NONCONFORMING USES:
   A.   Existing Large Residences: In the A residence district, large residences which exist at the time of the passage of the ordinance codified in this title may be used as two-family dwellings; provided, however, that the provisions of this title as to the lot area per family and the floor area per dwelling are observed.
   B.   Existing Land Uses: The lawful use of land existing at the time of the passage of said ordinance, although such use does not conform to the provisions hereof, may be continued, but if such nonconforming use is discontinued, any future use of the land shall be in conformity with the provisions of this title.
   C.   Existing Use Of Buildings: The lawful use of a building or part thereof, existing at the time of the passage of said ordinance, may be continued although such use does not conform to the provisions hereof, and such use may be extended throughout the building, provided no structural alterations, except those required by law or ordinance, are made therein.
   D.   Changing Building Use: Whenever a nonconforming use of a building has been changed to a more restricted use or to a conforming use, such use shall not thereafter be changed to a less restricted use. When a building, the use of which does not conform to the use regulations of this title, is damaged by fire, explosion, flood, act of God, or a public enemy, to the extent of more than seventy five percent (75%) of its fair value, it shall not be restored except in conformity with the regulations of the district in which it is situated.
   E.   Reconstruction Of Church Buildings: Nothing in this section, however, shall prevent the reconstruction of church buildings existing at the time of the passage of said ordinance. (1997 Code §17.40.010)