PROBLEM TO BE SOLVED : To manage and make use of market information on real estate at a low cost and easily.SOLUTION : A real estate information management support system 1 is composed of a plurality of user terminals 2, a system server 3 and a database 4. The database 4 stores the map data of digital maps, city planning maps or the like, and the attribute data of official announcement of land price, land assessments, land price research, national census, station information, information on property for sale, or the like. When selecting a building lot for real estate, the system server 3, on the basis of the map data and the attribute data, summarizes, for each sphere of train station, the number of commutation passengers getting on and off at the station that a user in an arbitrary area has designated, the number of existing condominiums, the tendency of change in households, and the like, and displays the summarized result together with the map of the area that the user has designated on the user terminal 2. The user, by analyzing the summarized result, can efficiently select a hopeful candidate lot.