The links below provide information about the 860|880 building restoration as described by some of the firms involved.
Krueck & Sexton Architects: Restoring Mies van de Rohe’s 860-880 Lake Shore Drive: When Less is Not Enough
In this interview, Ron Krueck describes the buildings’ place in history.
Harboe Architects, PC: 860-880 Project
Wiss, Janney, Elstner Associates, Inc. (WJE): 860-880 Project