Billing, Peters & Ruff
Architekture Studio
| 1964-1989 | Billing, Peters und Ruff, Stuttgart, Partners Johannes Billing, Jens Peters and Nikolaus Ruff |
| 1989-1998 | Billing, Peters, Ruff und Partners, Stuttgart, Gregor Hafner as additional Partner |
| 1985-1998 | BPR design, Stuttgart, Partners Johannes Billing, Jens Peters and Nikolaus Ruff, since 1989 also Gregor Hafner |
| 1998-2008 | bpr architektur und design, Stuttgart |
| under construction |
| under construction |