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| Building Mass Height | 44.5 m |
| Architectural Height | 44.5 m |
| Main Roof Height | 44.5 m |
| Building Mass Height | 44.5 m |
| Floors | 8 |
| Completion | 1964 |
| Structural Form | low-rise building |
| Main Usage | phone switching center |
| Status | existing |
| Architectural Style | early modern |
| Address | 509 North Dearborn Street |
| Smart Address | 509 North Dearborn Street |
| City | Chicago, IL |
| Country |  United States |
