| Relationships | Role | Relationship Start | Relationship End |
| Bt Building Corporation | Parent | 1/2/1986 | 11/30/1987 |
| Central City General, L. P. | Subsidary | 1/2/1986 | 11/30/1987 |
| Tower Land Co. | Subsidary | 12/15/1986 | 11/30/1987 |
| Relationships | Role | Relationship Start | Relationship End |
| Bt Building Corporation | Parent | 1/2/1986 | 11/30/1987 |
| Central City General, L. P. | Subsidary | 1/2/1986 | 11/30/1987 |
| Tower Land Co. | Subsidary | 12/15/1986 | 11/30/1987 |