TWI765141B

A real estate appraisal system stores an electronic map, a first geographical area data, a second geographical area data, a plurality of first appraisal parameter data and a plurality of second appraisal parameter data. The first geographical area data is related to a plurality of first geographical areas in the electronic map, and the second geographical area data is related to a plurality of second geographical areas having an area larger than that of the first geographical area. When the real estate appraisal system receives a real estate appraisal request, it determines whether there is a first building type weighted parameter related to one of the first geographical areas and corresponding to a target building type in the first appraisal parameter data; if not, it determines whether there is a second building type weighted parameter related to one of the second geographical areas and corresponding to the target building type in the second appraisal parameter data, if so, the real estate appraisal result