the uses permitted in the industrial zone, became a lawful use in such zone.
On September 3, 1957 the township enacted an ordinance regulating the operation of trailer camps and allied activities in the municipality.
In November 1957 plaintiff purchased a parcel of land, approximately 10 acres in area, situate in an industrial zone. In April 1959 the Supreme Court upheld both the zoning ordinance and the trailer ordinance in the case of Napierkowski v. Township of Gloucester, 29 N.J. 481 (1959). Inter alia the case held that the township had the right to prohibit by its ordinances, as they then existed, the maintenance of trailers at any place other than in the industrial areas defined by the zoning ordinance.
On August 26, 1959 plaintiff made application to the township forpermission to operate a trailer park on the lands he had purchased. On December 8, 1959 he was formally notified by letter that his application was denied because it "would be in violation of the Sub-Division and Zoning Ordinance of the township and also the individual trailers would not comply with the provisions of the building code." Meanwhile, on September 19, 1959, plaintiff had acquired title to a second parcel of land, also in the industrial zone and located directly across the road from that which he already owned.
On December 30, 1959 plaintiff filed a complaint in lieu of prerogative writs directed against the denial by the Township Committee of his application to operate a trailer park. *266 The case came on for hearing on March 17, 1960,