| 1943 | Born in Basel |
| 1958 | Trained as a cabinetmaker |
| 1963 | Kunstgewerbeschule Basel, trained as a designer |
| 1966 | Pratt Institute, New York, visiting student in architecture and design |
| 1968 | Architect in the Department for the Preservation of Monuments, Canton of Graubünden, Switzerland |
| 1978 | Lecturer, University of Zurich, on the surveying and maintenance of vernacular townscapes |
| 1979 | Opens his own practice, Haldenstein, Graubünden |
| 1988 | Visiting professor, SCI-ARC Southern California Institute of Architecture, Santa Monica |
| 1989 | Visiting professor, Technische Universität, Munich Workshop, Graz Summer School, Austria |
| 1994 | Fellow, Akademie der Künste, Berlin |
| 1996 | Honorary member, Bund Deutscher Architekten, BDA, Germany |
| 1996 - 1999 | Professor at the Accademia di architettura, Università della Svizzera italiana, Mendrisio |
| 1999 | Kenzo Tange Visiting Professor of Architecture, Graduate School of Design, Harvard University |
| 2000 | Honorary Fellowship of the Royal Institute of British Architects |
