Schloss Rauenstein, Cultural heritage villa in Überlingen, Germany

Schloss Rauenstein is a two-storey neo-baroque villa built around 1903 by the Swiss privateer Otto Ziesing on the Rauhhalde rise east of Überlingen. It has a high basement storey, structured side risers, pilaster corner quoins, various cornices, window hoods, ornaments and figurative reliefs beneath two mansard roofs and a prominent central roof whose spire is visible from afar.

Otto Ziesing, a Swiss privateer and former cavalry master, had the villa built around 1903 on the Rauhhalde hill east of Überlingen. After 1945 it served as the seat of a French general and later district governor Lindemann. The Bodenseekreis took over in 1973 and used it for an agricultural school and office; the city of Überlingen bought it in 2015.

The name "Schloss" was adopted although the building is a villa, and locals know the hill as Rauhhalde, the old field name. Since 2015 the villa has belonged to the town of Überlingen, which bought it to keep the 2.68-hectare park open to the public. An apple trail on the park's southern slope presents apple varieties of the Lake Constance region.

The villa sits on a hilltop with open views of the lake and landscape, making it pleasant to explore from outside. Visitors should expect uneven ground and elevation changes since the property stands on raised terrain.

The villa's central roof rises to a pointed spire visible from far across Überlingen, and beneath the two mansard roofs sit figurative reliefs and ornamented window hoods. Since 2018 the building has stood largely empty after the Ravensburg-Weingarten academy moved out.