§ 154.385 PURPOSE.
   Within the districts established by this chapter, or amendments thereto which may later be adopted, there exist lots, structures, uses of land and structures, and characteristics of use which were lawful before this chapter was enacted or amended, but which would be prohibited, regulated, or restricted under the terms of this chapter to permit these nonconformities to continue until they are removed. It is further the intent of this chapter that nonconformities shall not be encouraged to expand without restriction, nor be used as ground for adding other structures or uses prohibited elsewhere in the same district.
('65 Code, § 1352.01)