[CC 1964 §701.230]
A non-conforming use, building or structure existing lawfully at the time of adoption of this Chapter or any amendment thereof may be maintained (not structurally altered) or changed to a conforming use. Such non-conforming use shall not be expanded or reestablished if discontinued, nor shall it be continued if the structure or building be damaged to the extent of fifty-five percent (55%) of its reproduction cost, new. The Commission may, by special permit, allow a non-conforming use to be changed to a different non-conforming use, when, in its opinion, the change represents an improvement in the community.