PROBLEM TO BE SOLVED : To provide an other section corresponding registration information estimation system, an other section corresponding registration information estimation method and a program which can estimate a real estate corresponding to other section information.SOLUTION : A registration application information acquisition unit 36 acquires registration application information in which other section information is recorded. A registration information specification unit 38 specifies registration information on real estates indicated by the registration application information out of a plurality of registration information stored in a registration information storage unit 30. An other section corresponding information estimation unit 40 estimates registration information indicating a real estate of which an owner is the same as the real estate indicated by the registration information specified by the registration information specification unit 38 or a real estate that is a common warranty of the real estate indicated by the registration information specified by the registration information specification unit 38, out of the plurality of registration information stored in the registration information storage unit 30, as the registration information associated with the other section information.SELECTED DRAWING : Figure 4COPYRIGHT : (C)2018, JPO&INPIT