Within Charleston there exist structures, uses of structures and uses of land that were lawful prior to the effective date hereof, but which now would be prohibited or restricted under the provisions of this title. The purpose and intent of this title is to permit these nonconformities to continue until they are removed, but not to encourage their continuation. Such uses are declared by this title to be incompatible with permitted uses in the districts involved. Such nonconformities shall not be enlarged upon, expanded or extended, except in conformance with section 10-6-4 of this chapter. (Ord. 03-O-9, 3-18-2003)