[1] In 2007, a new wing was added to the building by the architecture firm Hermann, Valentiny and Partners providing improved facilities for its senior citizens.
[2] In 940, Heisdorf was first mentioned in a document, when King Otto I confirmed the Trier St. Maximin's Abbey's property in Hehchichesdorf.
In 1314, Heinrich von Stein, or de Lapide, was first mentioned in records as Lord of Heisdorf and owner of the castle.
Jean de Beck, who had acquired a large fortune as well as a noble title while in the service of the Austrian army, also built a castle in Beaufort.
By 1766, when a cadaster was established under Empress Maria Theresa of Austria, the castle had fallen into disrepair and was only inhabited by a caretaker.
The end of the wing on the Alzette side consists of a round tower with a roof in form of a cupola, with a spire above it.
Along the Mullendorf road is a service building from the early 19th century, which incorporates three portal entrances from the castle of Jean de Beck.