The purpose of this study is to identify the change of 3K-type (3 bedrooms and a kitchen) plans of condominium. Fifty-six condominium units originally built 51 years ago which were renovated over time were investigated. The present plans of the units were drawn and they were classified based on the relationship and function between each of the rooms. Some specific tendencies in the change in their function are found from the comparison between the original plan and the renovated plan.
