A legally existing use, building or structure, existing at the time of the adoption and recording of any regulations authorized hereunder, but not in conformity therewith, may be continued but
shall not be extended or structurally altered unless the same be changed to conform to such regulations or changed to a higher or more restrictive use. Added by Laws 1953, p. 406, § 8, emerg, eff, June 8, 1953.