Castle Groenendael – a school housed in a 19th-century mansion in Merksem

Castle Groenendael is a modest mansion in Merksem, a district on the northern edge of Antwerp, in the Belgian province of Antwerp. The building stands on the site of an older farmstead once known as "ten Steene" or "Hooghuis" — names that survive only in local records, since nothing of the original farm remains today. The building is now best known as a historic school building rather than a residence or a classic sightseeing destination, which makes it an interesting stop for anyone looking beyond Antwerp's more obvious landmarks.

When was the castle built?

Construction of the current building began in 1864. The result was a rectangular structure built in the neo-Flemish Renaissance style, an architectural direction popular in Belgium during the last quarter of the 19th century and drawing on the ornate facades of older Flemish townhouses and mansions. A park with water features was laid out around the building and later extended, giving the whole estate a more representative character.

What happened to the castle during the war?

During the First World War, Castle Groenendael was occupied by German forces, a fate shared by many similar country houses across occupied Belgium, which were often used as quarters, command posts, or logistical support for the occupying army. After the war ended, the building returned to civilian use.

How did the castle become a school?

A turning point in the building's history came in 1924, when the property was purchased by a college (an educational institution). Since then, Castle Groenendael has served as a school. Over the following decades the building underwent several renovations and adaptations aimed at reconciling its 19th-century historic character with the practical needs of a modern school. These works added, among other things, a spacious double-height forum used as a shared communal space, a room dedicated to physical activity classes (referred to as a FitClass), and a room set aside for musical expression classes.

Is Castle Groenendael worth visiting?

Because the building currently functions as a school, it is not a site visited in the conventional sense, unlike castle-museums or mansions opened to the public as heritage attractions. Its interest lies instead in how it illustrates the way 19th-century residential architecture can gain a second life as a public-purpose building while retaining its historic appearance. For visitors interested in the architecture of Antwerp and its surroundings, particularly the neo-Flemish Renaissance style, it is worth noting on the map, especially as part of a walk through Merksem, a district on the outskirts of this large port city.

Frequently asked questions

Where exactly is Castle Groenendael located? In Merksem, a district of Antwerp, Belgium.

When was the castle built? Construction began in 1864.

What architectural style is the building in? Neo-Flemish Renaissance, a style typical of the last quarter of the 19th century in Belgium.

Can the castle be visited? The building currently functions as a school, so public access is limited — it is not a typical museum-style tourist attraction.

What stood on the site before the castle was built? An older farmstead known as "ten Steene" or "Hooghuis".