Best castles around Hoeilaart, a municipality in Flemish Brabant, Belgium, offer a blend of historical architecture and natural parkland. The area is characterized by its green spaces, including the Jan van Ruusbroecpark, which provides walking and cycling paths. These locations combine cultural significance with opportunities for outdoor exploration.
Last updated: May 11, 2026
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The castle or farm of Hougoumont played a crucial role during the Battle of Waterloo. Next to the farm, there are still chestnut trees where you can still find bullet holes from the battle. You can visit the farm in combination with the 1815 museum.
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Two important lordships formed the basis of the current Hoeilaart: the lordship of Ter Heyde south of the IJse on the one hand, and the lordship of Holaer or Hoeilaart north of the IJse on the other. Here once stood the castle of the Ter Heyde lordship from the fifteenth century. That lordship ceased to exist after the abolition of the ancien régime. The current castle was built in 1858 on the orders of baron Jean de Man d’Attenrode (mayor of Hoeilaart from 1854-1878) and his wife Maria Carolina d’Ormesson. It is therefore not a remnant of the old lordship. BUT: the chapel and former closed farm next to it are. This building has now, as others have mentioned, been given a different function and dominates the view in the park. Inventory of Immovable Heritage: Kasteel van Hoeilaart, https://id.erfgoed.net/erfgoedobjecten/39785
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Excellent quality hotel and restaurant
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To see and don't hesitate to get lost there
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Beautiful but very busy. Good to know!
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Early in the morning to avoid the crowds
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Le Château du Lac is best known today as a 5-star hotel. Events are also often organised there and that is why I know it from a professional long-gone past. But the building, whether you call it a castle or rather a glorified villa, it does have a fairly intense past. In the past, the mineral water of Genval was collected and bottled here. Together with the source of Bonne Fontaine, the Château du Lac was the true symbol of Genval-les-Eaux. The Etablissement des Eaux, as it was originally called, was built between 1905 and 1907 by the architect Julien Wendrickx, the future production director of the Compagnie Internationale des Eaux Minérales, to house the collection of sources and the bottling of the mineral water of Genval. After the First World War and the receivership of the companies that managed the Genval site, the castle became the property of an English company before being taken over by the Princes of Merode, who leased the facilities to Schweppes Belgium. The Belgian branch was then managed by John Martin, an English brewer based in Antwerp, who had been importing beers from Great Britain and Ireland to the continent since 1909, including the famous Guinness. He obtained the exclusive production rights for the Schweppes range, which he transferred to Genval in 1952 following the deterioration in the quality of Antwerp's drinking water, which was now pumped into the Albert Canal. Since the divestment of Schweppes in 1988, the John Martin group has further diversified its range, with speciality beers (Timmermans, Gordon, etc.), soft drinks (Orangina) and fruit juices (Looza). After the Schweppes factory moved to Rue du Cerf, the château, now owned by the Martin family, was converted into the five-star Château du Lac Source: https://www.parismatch.be/lifestyle/voyages/2020/08/23/le-lac-de-genval-et-ses-villas-2D3Q25DBTVANBFBV5WXJG3R2NI/
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The Genval lake is located in the Zilverbeek valley. The artificial lake is located for the most part on the territory of Overijse and was constructed by order of lawyer and businessman Gustave Smets - Mondez. The 18 ha lake was constructed in 1904 in an area with a series of spring-rich ponds and marshes through which the Zilverbeek or the Argentine flowed. The Zilverbeek still flows along the lake on the Overijse side. The area attracted many tourists from the very beginning. Around 1900, the urban development plans were also drawn up for the construction of the park on the Walloon side. Several impressive villas were built here that were reminiscent of copies of buildings from Versailles and monuments on the Swiss Lake Lucerne. On the Overijse side, there was less interest in the construction, which is why the slopes are less developed than on the Walloon side, where it was promoted as a spa. After the First World War, the lake was sold to John Martin (1886-1966), an English brewer from Antwerp. He would establish the Schweppes factory here (Belgian license) in the "Château du Lac" (until 1981). The lake is still in the hands of his heirs. On the Meerlaan there are still a few cottage-style villas overlooking the lake. These villas are depicted on various old postcards and are still recognizable today but have been heavily modified. Inventory of Immovable Heritage: Maleizen, https://id.erfgoed.net/themas/14294
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The most popular castles in the area include Château de La Hulpe, known for its beautiful park and gardens, and Domaine Solvay, which encompasses the Château de Béthune within 227 hectares of forest and ponds. Both offer extensive grounds for exploration, though the castle interiors are generally not open to the public.
Yes, several locations are great for families. Château de La Hulpe and its surrounding park are very family-friendly, offering open spaces and gardens. Similarly, Domaine Solvay provides vast natural areas for children to explore. The Jan van Ruusbroecpark in Hoeilaart, home to the Kasteel van Hoeilaart, also features a playground and open fields for picnics.
Beyond the main castles, you can visit the Sint-Hubertus Chapel in Tervuren, a baroque castle chapel from 1617, presumed to be the death place of Saint Hubert. Also, Hougoumont Castle, a walled farm that was a key site during the Battle of Waterloo in 1815, is open to the public after restoration.
Generally, the interiors of many castles around Hoeilaart are not publicly accessible. For instance, the Château de La Hulpe and the Château de Béthune within Domaine Solvay are not open for tours, though their extensive parks are freely accessible. The Kasteel van Hoeilaart houses municipal administration and is not open to the public, and Landhuis de Quirini is a private residence.
Yes, the areas around the castles are excellent for outdoor activities. The Jan van Ruusbroecpark, where Kasteel van Hoeilaart is located, offers walking and cycling paths. Both Château de La Hulpe and Domaine Solvay are set within vast parks with numerous trails for walking, running, and cycling. You can find many routes in the area, including running trails and gravel biking routes.
The castles around Hoeilaart are often nestled within beautiful natural settings. Château de La Hulpe is surrounded by lush gardens, woods, and water features. Domaine Solvay boasts 227 hectares of forest, lawns, and ponds, with diverse plant species. The Jan van Ruusbroecpark also features two ponds and large fields.
The parks surrounding some castles offer good accessibility. For example, the park of Château de La Hulpe is noted as wheelchair accessible, allowing visitors to enjoy the exterior views of the castle and its beautiful gardens.
Visitors frequently praise the beautiful, expansive parks and natural settings surrounding the castles. The opportunity for peaceful walks, cycling, and enjoying nature is a major draw. The architectural beauty of the castles, even from the exterior, and the historical significance of sites like Hougoumont Castle are also highly appreciated.
Yes, the region offers several mountain biking opportunities. You can find various MTB trails around Hoeilaart, including routes that pass through or near the extensive forested areas surrounding some of the castles and parks, such as the Sonian Forest.
The Kasteel van Hoeilaart is a Neo-Gothic castle built in 1858, located within the Jan van Ruusbroecpark. While its exterior is beautiful to admire, the castle currently houses the municipal administration and is not generally accessible to the public for tours. However, the surrounding park is a communal space perfect for strolling and enjoying nature.
The Jan van Ruusbroecpark, home to the Kasteel van Hoeilaart, hosts an annual festival called 'Meifeesten' at the beginning of May. This event features local musicians and food, offering a taste of local culture alongside the castle.
The parks and castle grounds are beautiful year-round. Spring and summer offer lush greenery and pleasant weather for outdoor activities, while autumn provides stunning foliage. The 'Meifeesten' festival in early May is a specific event to consider if you want to experience local culture.


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