21.130.020 Establishment of legal nonconforming status.
   (a)   The provisions of this article shall regulate the continuation, termination, and modification of lots, structures, and uses which were lawfully established, but which no longer conform to the provisions of this title due to a change in zoning district boundaries or a change in the regulations for the zoning district in which it is located. A mere change in ownership or tenancy without any change in use, occupancy, or development shall not affect any of the legal nonconforming rights, privileges, and responsibilities provided under this chapter.
   (b)   Lots, structures, and uses not having previously acquired proper permits are illegal and subject to immediate abatement.
   (c)   Any nonconforming situation that becomes specifically authorized under the terms of some approval pursuant to this title, other than approval of an extension, expansion, change, or early termination of nonconformity, shall henceforth be governed by the terms of such approval and shall no longer be considered to be a nonconformity unless and until such approval expires or is revoked.
(Ord. 612 Exhibit A (part), 2008).