Schloss Detzel, Heritage monument and château in Haldensleben, Germany

Schloss Detzel is a hunting castle built in 1844 east of the road from Haldensleben to Satuelle, surrounded by an oak forest. The plastered brick building has two upper floors above a basement, an irregular layout, belt cornices and console friezes, and an octagonal tower on its northwestern side. Inside, an octagonal room with wooden panelling and a tower room with an eight-part wooden ribbed vault survive.

Baron Hermann von Bonin, owner of Gut Detzel, had the hunting castle built in 1844 to plans by Carl Friedrich Schinkel; other reports trace the design to a sketch by King Friedrich Wilhelm IV. After Bonin's death in 1859, his daughter Adolphine inherited it and gave it to Johanne Nathusius, who opened a home for people with mental disabilities. The first seven children moved in on 5 January 1864, and the house, initially called Asyl Kreuzhilfe, was consecrated on 26 January 1864.

Inside, an octagonal room with wooden panelling and a tower room with an eight-part wooden ribbed vault survive from the building period. From 1864 the castle served as the Asyl Kreuzhilfe, a branch of the Neinstedter Anstalten, and housed more than 70 residents at times.

The location sits within a spacious oak forest that makes it feel somewhat removed from nearby roads and settlements. Since the property now operates as a business facility, viewing from a distance is possible, though visitors should check beforehand if closer access is permitted.

Inside, an octagonal room with wooden panelling and a tower room with an eight-part wooden ribbed vault survive from the building period. The castle was sold in 2010 and renovated from November 2011 to October 2012; it now serves as a production site of SHP Steriltechnik AG.