Stefan Kaiser was born in 1963 in Frankfurt am Main, Germany. In 1989 he practiced as a Cabinet Maker in Frankfurt, Germany. 1990 to 1996 he began and completed his Engineering degree receiving a diploma in engineering in the College of Architecture/Interior Design at the University of Wiesbaden, Germany.
In 1994 he was a visiting student at the Royal Institute of Technology in Melbourne, Australia. By 1998, Stefan Kaiser started his own practice working in collaboration with Hsu-Li Teo in a multi-disciplinary design studio, Globalhaus.