The housing policy in Japan is changing from the construction of new houses into the utilization of housing stock. In order to revitalize the housing market, it is necessary to investigate the recent people's acquisition action of housing. This study aims to clarify the characteristics of not only the dealings of existing condominiums but also the people's demands for them in Tokyo Metropolitan Area. The results are as follows; 1) the market size of the existing condominium in the 1990s didn't expand because of the extensive supply of cheap new-condominiums after the bubble economy. 2) Dealings of the existing condominiums that aged around 10 years old are difficult by expansion of the difference of an acquisition price and a disposal price, because these condominiums were supplied in the period of bubble economy at a high price. 3) The households who purchased the existing condominium thought the maintenance activity of residents as important, and are satisfied also with maintenance activity of the residence now. 4) Half of the existing residential-house-acquisition households moved in the same city where they lived before.