If any preliminary or final plat which has been submitted for approval to the Plan and Zoning Commission, or any application for rezoning, or any other action which requires approval by the Commission, after being considered by such Commission, fails to win approval on a motion made by any member of such Commission and approved by the required number of members of the Commission, it shall be deemed to have been rejected or disapproved, and the Council shall be notified of such action accordingly. For the purposes of this chapter, any vote which results in a tie shall be deemed to be a rejection of any action requiring approval by the Commission.