Watt17 is an event venue in former mine buildings at Heusden-Zolder, in the Limburg province of Belgium. It offers more than 10 spaces for company events, seminars, annual meetings, congresses, trade fairs, weddings and private parties. Capacities run from 8 guests in the smallest room to 875 in the largest hall, and up to 6,000 on the outdoor Eventplein.
Seminars and company events
The official site presents the venue as a place for seminars, annual meetings, customer events, product presentations, launch events, company anniversaries, congresses, trade fairs, staff parties and automotive events. The setting is an old mine complex, and the venue combines this industrial heritage with modern facilities.
For seminars, the team points to flexible layouts, audiovisual equipment and technical support, so the organiser does not need to handle the technical side. Theatre sessions and more interactive formats are possible. Several smaller rooms can serve as breakout spaces for group discussions and networking. For annual meetings, the rooms can be set up in a classic meeting layout, in theatre style or in an interactive format, with stable connectivity and catering from a coffee break to a networking drink.
Team building activities are listed as a separate offer, and the venue also has a winter market program called Wintergloed.
Weddings and receptions
Weddings and private parties are sold next to corporate events. The site mentions themed parties and a team that guides couples from the first conversation to the last moment. For a smaller ceremony or reception, the In-Garden space takes up to 45 guests, while the Volt room takes up to 120 and the Ondergrond up to 385.
Rooms and capacities
The site lists ten spaces with a surface and a maximum number of guests. Ondergrond covers 450 m² and takes up to 385 people. Volt covers 350 m² and takes up to 120. Bovengrond is the largest hall at 1,200 m², with room for up to 875. Wattman covers 120 m² for up to 110, Ampère 100 m² for up to 80, Switch Off 60 m² for up to 30, the Controlekamer 45 m² for up to 25, In-Garden 60 m² for up to 45 and Ohm 25 m² for up to 8. The Eventplein is an outdoor area of 20,000 m² for up to 6,000 people, which suits fairs and large public events.
Having several rooms of different sizes means a company can book a plenary hall, a dinner room and a few meeting rooms in one visit. The site also offers a contact person for help choosing the right space.
Catering
Catering is handled by the venue itself. It is described as built around concepts: interactive aperitif stations, dessert bars, food stalls, food-sharing formats and served dining, adapted to the taste and mood of the event. For business meetings, the team lists lunch, coffee breaks and a closing networking drink.
History and setting
The buildings belong to the old mining heritage of the Limburg coalfield. The site speaks of a historic mine building and an authentic industrial atmosphere. The address is Koeltorenlaan 9 in Heusden-Zolder, a name that points to the former cooling tower area of the mine site.
Getting there
Watt17 is in Heusden-Zolder, in the province of Limburg, in the Belgian region between Hasselt and Genk. Check the access and parking details with the venue when you plan an event for many guests. Use the contact form on the site to ask about dates and room options.





