The facility management costs and energy consumption of spa and wellness hotels and rehabilitation centers has been determined and compared during the year 2002 in a benchmarking study by Promain Oy and VTT Building and Transport. We plan to continue interactive Internet-based monitoring of costs and consumption in the following years. The gathered current data represents the year 2001. Thirteen spa hotels and rehabilitation centers participated in this study. The data logging and booking practices varied somewhat, and in some cases a lack of data and problems in obtaining exact information hindered the comparison a little. We attempted to correct the faults at feedback meetings at the latest.