Heisdorf Castle was built by Baron Lippmann in the late 19th century. Surrounded by a large park, it was designed by the Belgian architect Charles Thirion. In 1916, the Sisters of the Christian Doctrine acquired the property as a convalescent home for their community. In 1982, it was opened as an old people's home under the name of Maison de retraite Marie-Consolatrice. 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.
The castle consists of two wings at a right angle to one another. The main entrance is in the middle of the building, in the square tower which connects the two wings. 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. This tower contains the knights' hall. From the outside, a monumental stairway leads to the first floor of the tower. Above the main entrance, one can see the years 1645 and 1888. The present castle was built in 1888, on the location where Jean de Beck had built a previous castle in 1645. The castle includes a chapel, which was built by the Sisters in 1924, on the side of the main street, where the two wings are connected. The chapel was built in 1924 and renovated in 2005-2006.
The castle grounds include a large park, along the main road, from which it is separated by a high wall. The park was renovated after 1910, which left the old trees standing. Two of these, a black pine and an oak tree, are counted among the 'notable trees' of Luxembourg.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.