Guirsch Castle, Protected heritage castle in Arlon, Belgium.

Guirsch Castle is a manor in Arlon built around an inner courtyard with multiple connected structures. A gateway tower erected in 1763 serves as the main entrance, while two residential wings facing the yard date from the 1800s and overlook landscaped gardens.

A fortress once stood at this location until 1453 when Burgundian forces destroyed it completely. The present-day structure was rebuilt between 1749 and 1763 as an entirely new construction replacing the ruins.

The chapel of the second castle, built by the de Busleyden family in the 16th century, is the only part of that building still standing; it now serves as Guirsch's parish church, Saint-Willibrord. The castle itself is private and has no public access, so the church is the element of the former estate that can be seen from the village.

This castle operates as a private residence and welcomes visitors mainly during official heritage celebration days. Planning your visit around these special openings is essential since regular public access is limited.

The estate has been listed as a protected monument and site since 16 October 1975, and a further decree of 30 November 1989 extended the protected site and classified the adjoining farm as a monument. The protected site covers 7.35 hectares, meant to shield the castle within its setting.