PROBLEM TO BE SOLVED : To easily provide information on real estate property to a client by a system.SOLUTION : This system is provided with a client data base 51 storing client data 52... containing desired condition data 53 on the desired conditions of a client concerning real estate property and client contact destination data 54a concerning the contact destination of the client at least, real estate data base 56 storing real estate data 57... concerning property to be handled, matched property presence/absence deciding means 11 for deciding whether there is matched real estate property matched to the desired conditions of the client by collating the desired condition data 53 and the real estate data 57... for each client, and client reporting means 12 and 20 for reporting the data on this matched real estate property to the client when the presence of matched real estate property is decided.