This review discusses the thermal performance of traditional buildings in Indonesia. It is intended to see the impact of the traditional architectural design and its thermal comfort in the warm humid climate of Indonesia. The literature review was taken from 16 articles which cover Sumatra, Java, Kalimantan, Sulawesi, and the Nusa Tenggara region. The articles were classified into tropical climates (Af), monsoon tropics (Am) and savanna (Af) groups to identify which architectural elements in traditional buildings contributes to thermal comfort. Based on simulation and measurement in the field, it is found that the roof contributes to changes in temperature in the building.