All farms in existence upon the effective date of this chapter and all farms which are brought into the city by annexation shall be a permitted use where the operator can conduct a farming operation. However, all regulations contained herein and other city ordinances as in effect shall apply to all changes of the farming operation which will cause all or a part of the area to become more intensively used or more urban in character.
(Prior Code, § 601.10) Penalty, see § 10.99