Summary:

GIS is becoming more and more popular tool supporting real estate appraisal. An example of such system is BORISplus, operating in Germany. The system may be a model for similar solutions. It is transparent and available for both ordinary users and real estate appraisers.An important source of data necessary for real estate appraisal in Poland is the register of prices and values for real estates (RCiWN) so the project is based on RCiWN. The project was created in GeoMedia software, released by Intergraph. Data may be displayed on a map. Attribute and spatial queries may be created in order to analyse the data. Implementation of GIS to the register of prices and values for real estates may significantly improve real estate appraisal.