An ordinance to authorize building material restrictions and requirements for BL2026-1312, the River North Urban Design Overlay, for properties located on Cowan Street, Cowan Court, and Waterside Drive, (165.21 acres), to create a new Subdistrict 3 and update the General Standards related to future streets and open space, all of which is described herein (Proposal No. 2017UD-005-012). THE PROPOSED ORDINANCE REQUIRES CERTAIN MATERIALS TO BE RESTRICTED IN THE CONSTRUCTION OF BUILDINGS.