(A) In interpreting and applying the provisions of this chapter, they shall be held to be the minimum requirements for the promotion of the public health, safety, comfort, morals, convenience and general welfare.
(B) It is not the intent of this chapter nor should it be the result of this chapter that any usage of land existing at the time or prior to the passage of this chapter which was illegal or unlawful under former zoning ordinances or regulations should become legal or lawful under the terms of this chapter.
(1985 Code, § 36-7-4-600(1.2))