The lawful use of a building existing at the time of the effective date of this zoning code may be continued although such use does not conform thereto. If no structural alterations are made, a nonconforming use of a building may be changed to another nonconforming use of the same or a more restricted classification. Whenever a nonconforming use has been changed to a more restricted use or to a conforming use, such use shall not thereafter be changed to a less restricted use.
(Ord. 2003-51, passed 5-20-03)