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| Floors | 5 Source: Visual check in the structure's vicinity |
| Completion | 1975 |
| Structural Form | low-rise building |
| Main Usage | commercial office |
| Status | existing |
| Architectural Style | modern |
| Address | 1 Old State Capitol Plaza |
| Smart Address | 1 North Old State Capitol Plaza |
| Smart Address | 100–116 North 5th Street |
| Smart Address | 501–519 East Washington Street |
| City | Springfield, IL |
| Country |  United States |
