The Association of Siamese Architects under the Royal Patronage in collaboration with the Faculty of Architecture, Chiang Mai University had organized LIVE DESIGN DISCOURSE Chiang Mai 2019 : Heritage City between 9 - 12 December 2019 at the Faculty of Architecture. Asst. Prof. Dr. Rattapong Angkasith, Assistant Dean for Student Affairs and Professional Relations Association had given an opening speech. Participants were representatives and students from the Association of Professional Architects of 4 countries including Association of Siamese Architects under the Royal Patronage (ASA), Indonesian Institute of Architects (IAI), Pertubuhan Akitek Malaysia (PAM), and Singapore Institute of Architects (SIA). The purpose of this program is to learn and exchange experience in design between architects from different cultures.