Former Chair

1956 Born in Vienna

1974–1980 Studied law at the Law School of the University of Wien

1980 Magister et Doctor iuris (University of Wien, Law School)

1991 Habilitation as "Universitätsdozent" of Constitutional and Administrative Law at the University of Vienna (Institute for Constitutional and Administrative Law, Faculty of Law) 

1980–1998 University Assistant, Assistant Professor and Associate Professor at the TU Wien (Department of Law, Department of Spatial Planning and Architecture) 

1998–2019 University Professor of Lands Policy, Land Management, and Municipal Geoinformation at the Department of Spatial Planning, TU Dortmund University

since 2015 Faculty from Abroad at the Institute of Public Policy, National Law School of India University, Bengaluru, India

since 2019 Visiting Professor, Faculty of Law, University of Johannesburg

2000–2004 Project leader of “Urban Region Ruhr 2030” (Research Network of the Cities of Duisburg, Mülheim an der Ruhr, Oberhausen, Gelsenkirchen, Essen, Herne, Bochum and Dortmund as well as the Department of Spatial Planning of the University of Dortmund; funded by the Federal Ministry of Education and Research and the Ministry of Urban Planning and Housing, Culture and Sport of the University of Dortmund; State of North Rhine-Westphalia; total volume: approx. € 1.7 million; share of the Department of Spatial Planning: approx. € 860,000) 

1996–1997 Project manager “Ozone Action Plan” on behalf of the states of Burgenland, Lower Austria, and Vienna

1990–1992 Member of the working group “Sicherheitspolizeigesetz” as well as advising and training activities for the Federal Ministry of the Interior in Vienna

2000–2001 Dean of the Department of Spatial Planning at the University of Dortmund

2002–2005 Member of the Academic Senate of the University of Dortmund

since 2005 Member of the Expert Committee for Land Valuation in the City of Hagen

since 2008 Member of the Expert Committee for Land Valuation in the City of Dortmund

since 2008 Member of the Superior Expert Committee for Land Valuation in the State of North Rhine-Westphalia

Research stays at Wharton School (University of Pennsylvania, Philadelphia, PA; 1993), Harvard Law School (Harvard University, Cambridge, MA; 1994-1995), Australian National University (Canberra, A.C.T.; 1996), University of Cambridge (U.K.; 1992, 2001, 2003, 2007) and Katholieke Universiteit Nijmegen (2000), University of Johannesburg (2020)