The Sustainable Built Environment D-A-CH Conference 2019 (SBE19 Graz) takes place 11 – 14 September 2019 at Graz University of Technology. With close to 180 scientific presentations, well-known keynote-speakers and an exhibition, SBE19 Graz offers countless opportunities to learn more about sustainable built environment and connect with experts. The Book of Abstracts provides a detailed overview for participants as well as interested parties who cannot attend the conference. The abstracts of the published full papers are presented in alignment to the conference program and focus on the topics Buildings, Building Design, Cities, Processes, Products, Education and Economy, and National Issues. Information on additional conference formats such as workshops on UN Sustainable Development Goals as well as Special Sessions and Special Fora are also included in this book.