1991	He completed 'KunsttlausWien'. He did the concept and also went to develop some more architectural projects like 'The Thermal Village' in Blumau. He did the town planning for Grilfen, Carinthia, Austria. He also presented the Hundertwasser 'Art Jeton' designed for casinos in Austria.	1996	He redesigned and unreveiled the Danube ship; ' Ms Vindobona'.
1992	He designed 4 telephone cards for the Austrian Postal Service. He also designed a postage stamp commerating the European Council Summit in Vienna; 1993.	1997	He worked on 366 individual book cover designs foe Bertelsmann Book CLub. He inaugurated the 'Roger Thermal Bath' in Blunau, Styria. He designed and modelled the architectural project 'MOP for the city of Osaka', Japan and 'Hoch-Wiesen' for Dresden, Germany. He did the architectural design and model for former 'Market in Altenrheiu', Switzerland.
1993	He worked on the Hundertwasser-Bible Project.	1998	He supported an ecological project for the afforestation of the desert in Israel with his poster 'Among trees you feel at home.
1995	He worked on Blumau Hot Springs Vliaage. He re-designed 'Martin-Luther-Grammar School' in Wittenberg, Germany. He also designed the exterior of a Boeing B 757 for the German Condor Airline.	1999	He took on more Architectural Projects like 'Sludge Center' in Osaka in Germany. He also did some reconstruction work for the new Kawakawa Public Toilet in New Zealand. He also rejuvenated his ship; 'Regentag'. He also designed the layout and book covers for his Oeuvre Raisonne books.