The American Institute of Architects’ 25-Year award is given each year to a building of ‘enduring significance.’ In 1976, the 860|880 buildings became the seventh recipient of the award. The previous winners were:
- Rockefeller Center, New York City
- The Crow Island School, Winnetka, Illinois
- Baldwin Hills Village, Los Angeles
- Taliesin West, Paradise Valley, Arizona
- Johnson and Son Administration Building, Racine, Wisconsin
- Philip Johnson’s Residence (“The Glass House”) New Caanan, Connecticut.
Architectural critic Peter Blake, writing in 1960, called the 860|880 structures the ‘strongest, purest and most deceptively simple statement of Mies’ ideas.’