PROBLEM TO BE SOLVED : To efficiently provide available real estate properties to a person who wants to use real estate properties.SOLUTION : This real estate property retrieving system comprises a real estate property provision information receiving means for receiving real estate property provision information including real estate property information and real estate property provision request conditions, a real estate property provision information storing means for storing the real estate property provision information, a real estate property use information receiving means for receiving real estate property use information including real estate property user information and real estate property use request conditions, a real estate property use information storing means for storing the real estate property use information, a real estate property retrieving means for comparing items configuring the real estate property information with items configuring the real estate property use request conditions, and for retrieving the real estate properties whose items are matched, and a real estate user information retrieving means for comparing items configuring the real estate user information with the items configuring the real estate provision request conditions, and for retrieving the real estate property user information whose items are matched.