born 1957, studied architecture at the Fridericiana University at Karlsruhe. 1986-1993 at Behnisch & Partner, Stuttgart. 1990-1992 and 1996-2001 lectureship at the University of Stuttgart. Since 2000 competition adjudicator. Member of the VfA and member of the Council for Building Culture at the German Cultural Council. Founder member of the German Sustainable Building Council (DGNB). Executive Partner of 4a Architekten GmbH.