The Effect of Housing Supply by Type on Age Composition of Population

The preference for house’s sizes or types varies depending on the household’s life cycle. The housing composition of a specific area affects the population composition of that area. Cluster of similar housing types can result in clustering specific population groups and lead to social disconnection and residential segregation. Therefore, appropriately mixed housing supply is important in terms of the population composition of a region. Accordingly, the purpose of this study is to analyze the impact of housing supply by types on the age composition of the population. To this end, a housing-population model was derived to analyze the effect of the number of housing types on the population by age groups. Afterwards, this model was used to analyze changes in population structures according to housing supply scenarios. The analysis results are as follows. First, there are differences in the preference for house’s sizes or types by age groups. Therefore, it is necessary to provide appropriate mix of housing for residence of various age groups. Second, in the case of the complete redevelopment scenario, the population of teenagers and those in their 40s increased, while the population of young people and the elderly decreased significantly. Third, in the case of the restorative redevelopment scenario, overall age groups were equally distributed. Fourth, in the case of a scenario in which a project is not implemented, the number of old houses rises, whereas there residential areas of the elderly are preserved.