Amending Chapter 14-400 of The Philadelphia Code, entitled "Commercial Entertainment District," by amending Section 14-403 of The Philadelphia Code, entitled "Procedures for the Establishment of a Commercial Entertainment District," by amending the procedure by which a Plan of Development is approved or amended; and amending Section 14-409, entitled "Off-Street Loading," by adding provision relating to proposed projects in the Center City area, all under certain terms and conditions. — Open Common Ground