The cultural change model introduced in this paper covers the cultural change processes and their impacts on housing systems. Cultural processes cause changes in life style learned by the agreed enculturation, acting on the formation of the opinions of the society. Culturation, acculturation, cultural shock, cultural diffusion, transculturation, cultural assimilation are other cultural processes constituting cultural change. The cultural change model for housing proposes that "housing and its close environment physically change in accordance with the cultural processes that are taking place in the related society." Functions of cultural processes include types of formal or informal housing, urbanization, migration, stratification, life styles, selection of housing equipment, and behavior. Cultural processes have been used as tools to explain the interaction between the above socio-cultural, economic factors and housing patterns of a definite people and place in the cultural change model. A case study was applied in the Sisli-Bomonti region to obtain cultural changes. Cultural processes according to cultural change model were examined in this case study by using the existing results. (C) 2005 Elsevier Ltd. All rights reserved.