Dietger Wissounig was born in 1969 and graduated from the higher technical college for structural engineering in Villach in 1989.
Afterwards, he then went on to study architecture at Graz University of Technology, where he earned his degree with a thesis project in Klang
Valley, Malaysia. In the following years he worked as a project architect for several offices in the fields of health service, residential building
In 2003 he opened his own architecture office, Dietger Wissounig Architekten.
In 2015 the office became a limited liability company (GmbH).
2004-2009 lecturer on design at Graz University of Technology
2010-2014 member of the board of directors of the HDA (Haus der Architektur) Graz
2009-2015 member of the architectural advisory board Naturpark Südsteirisches Weinland
2013-2015 member of the architectural advisory board Wels
2016-2021 member of the editorial board for the magazine Zuschnitt
since 2018 member of advisory board for the society of Baukultur Steiermark