Penobscot Annex in Detroit
| Height | 94 m (310 ft) |
| Floors | 23 |
| Construction Year | 1916 |
| Structural Form | high-rise building |
| Main Usage | commercial office |
| Status | completed |
| Architectural Style | beaux-arts |
| Address | 144 West Congress Street |
| City | Detroit |
| Country | United States |