After more than 50 years of operation, the Siebentäler Therme in Bad Herrenalb is due for revitalisation. The spa is a small gem at the entrance to Bad Herrenalb, nestled between parks and the Falkenstein mountain. With his design, the Tübingen architect Karl Heinz Angst created something unusual in the spa landscape in 1971- and timeless as well. To this day, the architecture and function of the spa largely correspond to those of a modern recreational bath. In order to reduce operating costs, however, the Therme needs to be brought technically up to date and its design overhauled. This applies in particular to the sauna area and the gastronomy.