A transition - process is being gone throutgh in Turkey, one of the results of which is the migration from rural to urban areas. The social characteristics of the original culture of rural people reflect onthe built environment In a wide spectrum covering the construction tech-niques suitable for the available building materials in the region as well asthe building style and spatial organisations which had been found to be themost appropriate for the physical, social and economic environments of therural areas they live and for their individual needs.When rural people migrate to urban areas, they go through a process of'Gettint Urbanized' namely 'Transition - Period' which is known to takeplace in stages. During this process the elements of urban culture replacegradually the ones of rural culture that the migrant bring with them. Be-sides the characteristics of the physical, social and economic environments,the elements of built environment i.e. building materials, constructiontechniques, means and ways of landownership are different.Within this framework, kinds of spatial organisation and of buildings them-selves migrants live in, gradually change. However one can observe thatsome of the elements of rural culture change through the stages of transi-tion - period whereas some others are carefully maintained due to manyreasons and that both kinds are reflected in the built environment In urbanareas.Therefore, the aim of the paper Is to present an analysis of impact of soclo-cultural change on the built-environment the migrants live in, referringmainly to their dwellings, namely the 'Transition - period Housing'. Thereason for challenging this subject is that the issues of both temporality andcontinuity exist in this phenomenon.The search for answers to the following questions form the essence of theanalysis:- What have the migrants brought from rural areas culturaly & spatially?- Which elements of their original culture have remained unchanged andwhich of them have changed?- What are the changes taking place in the spatial organisations of theirdwellings and the built environment after settling down in the urbanarea as the result of the issues raised up by the second question? While the first question is related to ' Culture & Continuity', the last twoare related to 'Culture & Change'. The way to explore the issues related toabove questions will be based on two scales:- The cultural factors: At the scale of the family and the community,- The spatial factors: At the scale of dwelling mainly and the settlement.The starting point in history is selected to be 1930's the date after whichtransformation in the Turkish society began to gain momentum.