This paper should present, how service charges for commercial and residential properties can be compared and analysed with aid of the online-database This paper follows the paper presented by Prof. Dr. Hansjˆrg Bach and Siegfried Rehberg contains the presentation of the database on the basis of the Geislinger Convention. Taking the example of TREUREAL GmbH, a real estate service company whose activities range throughout Germany and have developed this platform, various examples will be presented on how service charges have been analysed and costs optimised for commercial properties. With the aid of the database service charge costs can be compared on the basis of regional specifics, technical equipment and building type aspects. * Creation of rankings and quick-analysis to find distressed properties; * Variance of service costs from a freely defined comparative portfolio; * Representation of the bandwidth of service charge costs; * Representation of the development of service charge costs within a defined period