“International Sustainable Buildings Symposium - ISBS” was organized for the first time on 26-28th May 2010, for the second time on 28-30th May 2015, and for the third time on 15-17th March 2017. With the idea which makes the symposium a regular organization, the “4th International Sustainable Buildings Symposium - ISBS2019” will be held on 18-20th July 2019 in City of Dallas, Texas - USA. By organizing ISBS2019, we aim to bring together researchers and experts from both USA and Turkey and the rest of the world in dialogue with researchers and authorities of implementing and consulting firms and institutions.