Before approving any amendment of the Zoning Map so as to create a new or enlarged B or M District, the Town Board may require the submittal of development plans including the location and character of proposed structures and conditions of use for the premises concerned, and in approving any such amendment, the Town Board may specify that no building permit or certificate of occupancy may be issued with respect to said premises under the amended district classification except in accordance with said plans and conditions of use as submitted or as revised to meet the requirements of the Town Board in furthering the purposes of this chapter. At the end of six months from the date when it became effective, any zoning amendment which has been approved subject to conformity with development plans and conditions of use shall be nullified, and the zoning classification of the premises affected shall revert to that which applied immediately before such amendment unless within such period of six months an application for a building permit covering the approved structures has been duly filed. The Town Board may require a performance bond to assure that a project which has been approved subject to conformity with development plans will, if started, be either completed within a reasonable time limit or abandoned and the premises returned to their previous condition.