|Foundation of the office by Josef P. Kleihues and H. Moldenschardt in Berlin
Foundation of the office Josef Paul Kleihues in Berlin
Foundation of the second office Josef Paul Kleihues in Dülmen-Rorup
Foundation of the office Kleihues + Kleihues Gesellschaft von Architekten mbH consisting of three partners: Prof. Josef Paul Kleihues, Jan Kleihues, Norbert Hensel. After the death of Professor Josef P. Kleihues in August 2004, Kleihues + Kleihues has been continued by Jan Kleihues and Norbert Hensel. Michael Alshut is partner since 2006. Johannes Kressner is partner since 2010. Since 2008 Götz Kern is associate partner.