PROBLEM TO BE SOLVED : To structure a registration system for real estate items which can register the floor plan of a building through easy operation.SOLUTION : This registration system has a function for processing a specific form image showing the floor plan of a building and storing floor plan data on the building when the specific form is sent through a facsimile line, and a function for reading the estate floor plan data on the building when the registration of the real estate is requested through a compute network and accepting the input of the floor plan data on the building regarding the real estate.