Within any flood hazard area, no building, structure or other development used, or designed or intended to be used, for residential purposes, including required yards related thereto, shall be permitted, and no premises shall be converted for such purposes. For the purposes of this chapter, "flood hazard area" shall mean and include (a) lands within any floodplain, wetlands or wetlands transition area, as such areas are designated by the New Jersey Department of Environmental Protection and/or (b) lands within any flood hazard areas, as defined in § 21-2 of Chapter 21 of the Revised General Ordinances of the Township, whichever method, or combination thereof, shall delineate the greatest total land area in any particular case. The aforesaid restrictions shall also apply to any conditional uses, or structures related thereto, which are prohibited within flood hazard areas.