Haus Blegge, Water castle in Paffrath, Bergisch Gladbach, Germany

Haus Blegge is a water castle in Bergisch Gladbach featuring a baroque mansion surrounded by water moats that preserve its original structural form. The complex demonstrates how water defenses shaped residential design in the 18th century, with the moats serving both protective and aesthetic functions.

The site emerged in medieval times as a knight's residence and underwent baroque transformation in the 18th century under Johann Jakob Bützler. This renovation period established its current appearance and reflected changing tastes in residential design of that era.

The name Haus Blegge replaced Haus Blech in the early 20th century because Blech seemed too modest for a water castle; the spelling Bleghe appears in documents for the knight Sibodo von Blech. Since 1951 the Missionsschwestern vom Heiligsten Herzen Jesu von Hiltrup have owned the estate, which the Caritas has rented since 2016 for the St. Raphael retirement home, housed in the historic building and a new building in the park.

The building sits in the Paffrath district surrounded by green spaces accessible on foot from nearby areas. Access to the grounds is available, though parts function as residential quarters where respect for privacy is important.

The name changed from Haus Blech to Haus Blegge because "Blech" seemed too plain for a moated castle; the knight Sibodo von Blech appears in documents as "Bleghe". The nearby Schmidt-Blegge-Straße recalls the estate and its former resident Ernst Schmidt.