The Castle can be visited
Cultural center
Haus zum Haus Castle

A moated castle from the 13th century, Haus zum Haus, is situated on the Angerbach in Ratingen. It is distinguished by an award-winning restoration.
History+
The origins of the site date back to the 8th century, when a Frankish settlement likely existed here at a fortified crossing of the Anger. In the 9th century, a palisade-protected motte or ringfort secured a ford at the same location. This structure was completely destroyed by fire in the 12th century. Around 1276, the current moated castle was built as the ancestral seat of the noble family "vom Haus" and was part of a defensive line along the Anger. Johann zum Haus, Marshal of the Duchy of Berg, expanded the castle in 1474.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.zeche.org/
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 51.3037, 6.8465