PROBLEM TO BE SOLVED : To extract a greater number of real estates including potential properties that can fully meet the needs of customers through reforming.SOLUTION : This real estate search system is provided with an information recording part H1 in which property information J consisting of a plurality of items for each real estate is readably stored; an input part N to which search information K with a plurality of items corresponding to the property information J can be inputted; and an extraction means 2 for extracting from within the information recording part H1 the corresponding real estate having the property information J corresponding to search information K inputted from the input part N. The property information J comprises a first group Ja of property information consisting of items that can be reformed, and a second group Jb of property information consisting of items that cannot be reformed. The extraction means 2 searches the items of the search information K for the items corresponding to the second group Jb of property information to extract the corresponding real estate.