Subject to the provisions of this chapter, a nonconforming use or structure may be continued and maintained in reasonable repair but shall not be altered or extended, except that a structure conforming as to use but nonconforming with respect to height, setback or lot coverage may be altered or extended; provided, that the degree of nonconformance shall not be increased, and the current requirements of the zone in which it is located shall be observed with respect to the new portion of the building.
(Code 1966 § 17.07.010; Ord. 1138 § 1, 1992; Ord. 1268 § 1, 1997)