| Developer | Herbert S. Greenwald in partnership with Robert Hall McCormick, Sr. and Jr. |
| Architect | Ludwig Mies van der Rohe |
| Associate architects | Pace Associates and Holsman, Holsman, Klekamp and Taylor |
| Structural engineer | Frank J. Kornacker |
| Construction company | Sumner S. Sollitt Company |
| Formal ground breaking ceremony | December 17, 1949 |
| Dates of construction | 1949 – 1951 |
| Lot size | 33, 804 square feet |
| Size of each floor | 107’ by 65’ |
| Building height | 284’ |
| Number of levels | 26 stories above ground with 2 levels sub grade |
| Number of apartment units: initially/now | 271/238 reflecting combined units |
| Cost of Project (1949 -1951) | $5 – 6 million (approx. $49 million in 2010 dollars) |
| Cost of Building Restoration (2007 – 2010) | $9 – 10 million |
Photograph by Hedrich Blessing, courtesy of the Chicago History Museum.