The Château de Mielmont can be booked for seminars, receptions and private or professional events, and can also be rented as a whole to a group staying overnight. It stands in Onoz, in the municipality of Jemeppe-sur-Sambre, in the province of Namur, in a park of 100 hectares. The estate is about 40 minutes from Brussels, 20 minutes from Namur and 20 minutes from Charleroi airport.
Seminars and company events
The estate offers several rooms and lounges that can be rented for private or professional events. The Arcades room is a renovated space of 80 square meters with three south-facing arcades that bring in daylight. It was once the carriage room, and the venue recommends it for seminars and small events. The Orangerie, a former stable of 50 square meters, is also described as well suited to seminars. Outside the rooms, guests can use the park and woodland, which makes outdoor breaks and walking meetings easy to add to a program.
Weddings and receptions
The site lists a reception offer built on the same spaces. The cellars of the château form four vaulted areas, including the former castle kitchen, and are presented for receptions. The Chapel and the Kitchen are also listed among the event spaces. The official pages speak of private and professional events and of receptions, but they do not name weddings. If you plan a wedding, ask the venue directly.
Rooms and capacities
Arcades room: 80 square meters, daylight from three arcades. Orangerie: 50 square meters. Cellars: four vaulted spaces, including the old kitchen. The official pages give floor areas but not seated or standing capacities, so request the numbers for your layout.
Accommodation
The château can be rented as a whole under the heading of full privatization. It has 12 bedrooms and accepts up to 24 adults and 6 children aged up to 12. When you book, the estate is reserved for your group only. The stay includes bed linen, final cleaning, Wi-Fi and firewood for the fireplaces, according to the booking page. This makes the house suitable for a leadership retreat or a team stay that combines work and lodging.
Catering
The site has a dedicated catering page, which is not part of the pages read for this profile. Ask the venue how meals and breaks are provided for seminars and receptions.
History and setting
The domain describes itself as a heritage site in a large park, with a separate equestrian area in the former stables and a section on history and renovation. The estate has also hosted a television shoot, which shows that it is used to production-scale visits. The venue stresses authenticity and a break from everyday routine.
Getting there
The address is 3 Rue de Mielmont, Onoz, 5190 Jemeppe-sur-Sambre. Brussels is about 40 minutes away, Namur 20 minutes and Charleroi airport 20 minutes, according to the venue.



