Notwithstanding any other provisions of this chapter, the establishment of any new use, building or structure or the conversion, enlargement or extension of any existing use, building or structure for other than residential or public purposes in the R-C, C-1, C-2 and M-2 Districts shall be permitted only upon the basis of a plan therefor approved by the Town Board after review thereof and recommendation thereon by the Town Planning Board and the Code Enforcement Officer of the Town of North Collins. This subsection shall only pertain to uses, buildings and structures permitted in the R-C, C-1, C-2 and M-2 Districts under this chapter other than residential or public uses. This subsection shall not authorize the establishment of any use in any district where said use is prohibited in any way by any other provision of this chapter.