PROBLEM TO BE SOLVED : To provide a real estate information search system capable of searching a land based on a desire condition of a user, and selecting and presenting a building which can be constructed to a land which is searched.SOLUTION : A processing part 230 of a real estate search information provision part searches land information 221 from a storage part 220, by budget information 111 and real estate request information 112 from a user terminal, then sends a list of the pieces of land information to the user terminal, then searches building information 222 which matches the land information and budget information from the storage part from land designation information 113 from the user terminal, then sends a list of the pieces of building information to the user terminal, then, generates lists of land compartments and buildings from the designated land information and building information, by building designation information 114 from the user terminal, and then sends the lists to the user terminal through the network, as real estate detail information, in the real estate information search system.SELECTED DRAWING : Figure 3COPYRIGHT : (C)2018, JPO&INPIT