International design competition Donau-City Twin Towers, Vienna, 1. Prize (with Arata Isozaki), 1991
International design competition Potsdamer Platz Berlin, 3. Prize (with Arata Isozaki), 1991
International Design Competition Museum of Contemporary Art Stuttgart (with Arata Isozaki), 1. Prize, 1990-1991
Holocaust Memorial Park KZ-Witten-Annen, Ideas Comp. 2. Prize, 1992
Ideas Competition Innovative Housing (30 units), Gruenwiesenstrasse, Bietigheim, 1. Prize, 1992
Urban design competition Schoeneberger Kreuz, Fernbahnhof Papestrasse, Berlin Schoeneberg, 2. Prize, 1993
Design Competition Torhäuser Leipziger Platz, Subway Entries (with Arata Isozaki), Belin, 3.Prize, 1993
International Design Competition Headquarter Berliner Volksbank at Kaiserdamm, Berlin Charlottenburg (with Arata Isozaki), 2. Prize, 1993
Design Competition Awards
Design competition Albertplatz Dresden, 1. Prize, 1994-1998
Gutachterverfahren (Competitive Expert Appraisal), Quartier an der Museumsinsel, Berlin, 1. Prize, 1994
Design competition Housing (70 units) & Health Care, Potsdam Hermannswerder, 2. Prize, 1995
Design competition Affordable Housing (80 units) Prager Strasse, Leipzig, 3. Prize, 1997
Invited design competition Bundespressekonferenz, Berlin, 1998
Art competition Sculpture Garden Hospital Muehlacker, 2. Prize, 1998
Architekturpreis Hochtaunuskreis, Frankfurt a.M., 1. Prize, 1999
Best Office Building, Potsdamer Platz Berlin, MIPIM Award, 1. Prize, 1999
Taree Waterfront Masterplan with Park (in partnership with Suters Architects), New South Wales, Australia, 1. Prize, 2006-2009
Mildura Riverside Masterplan with Park (in partnership with Suters Architects), Victoria, Australia, 1. Prize, 2009-2010
