• Koeltorenlaan 9, 3550 Heusden-Zolder, Belgium

In the past, energy was generated in this stately industrial building to power the machines of the former coal mine of Heusden-Zolder. Today, Watt17 is still buzzing with energy thanks to the two event rooms Bovengrond and Ondergrond . Together 1,600 m2, modular and can be arranged according to the objectives.

Do you have a staff party, conference, fair or other event coming up? Then definitely come by. Watt17 is a pearl for lovers of industrial heritage.

For larger events (up to 2000 people) we combine Watt17 with other rooms on the ZLDR Mine site . For example, there are various auditoriums (up to 420 people) and an experience center that is completely devoted to the mining past.


Get rid of the standard decoration, less is more. If you are a fan of this principle, go for this beautiful industrial location. Unique materials are used for the decoration in the 'Underground' room. What do you think of copper, metal and wood? These are guaranteed to give the interior a stylish look. The sky of light bulbs provides extra cosiness. The XL trees and floating garden provide an elegant appearance. Thanks to the integrated audiovisual system with projection, stages, boxes and light atmospheres, we can convert this location from a professional meeting room into a romantic wedding location in no time. Large objects such as cars, exhibition stands, etc. can be brought in without any problems through the large sectional doors. Room Ondergrond has a capacity of 80 to 430 people.


A unique moment requires a unique location. In this former machine room of the power station, the large glass areas, the old meter cupboards and the high industrial ceiling are the absolute eye-catcher. You can leave the location rough and sleek or decorate it with hundreds of candles, flowers, atmospheric lighting, etc. The room can always be brought to the desired size thanks to a mobile fabric system. Ideal for trade fairs, conferences and staff parties. The two additional adjoining break-out rooms provide even more flexibility. Room Bovengrond has a capacity of up to 875 people.

Watt17/ZLDR Mine is 'the place to be' for automotive events!

Watt 17 and ZLDR Mine are ideal and practical for the organization of larger events and trade shows with vehicles. The closed square around which these buildings are located has three entrances and exits that form a loop and thus create circulation.

Looking for a small-scale location for 2 to 70 people or external catering? Check out our Villa Zwart Goud and Witti Group pages .

Your fair in Watt17?
March 16, 2023

Would you like to organize a large event?

ABOVEGROND, with its old meter cupboards, high ceilings and an area of 1200²m, is an absolute eye-catcher that can welcome up to 875 guests. Easy to arrange according to your needs, breathtaking day and night. A unique event requires a unique location. In this former machine room of the power plant, the large ...

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Christian Titeca
Leader |Photoevents | March 27, 2023

Geweldige plek waar ik al meerdere malen met mijn fotostudio gasten mocht verblijden.

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1 review on Watt17

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Marco Debart
Expert|Ill Skills Events|

Looking for a great location for your event?

Saturday 30/09 we were allowed to attend an event in Watt17, a beautiful location, beautiful building with a story. Everything perfectly taken care of, adequate sanitary facilities, beautiful stage. A location to check out for your next event.

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EVENTS - Kevin Van der Straeten Buy now!

Characteristics Watt17



Number of people

80 - 2000 



public transport 

parking - free 


near motorway 

Catering venue

in-house catering 


air con 

sound system 


Activities Watt17

Activity regions:
Limburg | Belgium
Banquet hall rental in Heusden-Zolder | Banquet hall rental | Event Venues Rental in Heusden-Zolder | Event Venues Rental | Wedding Venues in Heusden-Zolder | Wedding Venues
January 13, 2023

There were more than 600 of them, Solidaris staff. Thanks to the combination of the Onder- and Bovengrond room, everyone could let loose! The beautiful stage of Les Truttes and our creative buffet setup of no less than 30 meters long not only provided a beautiful eye-catcher, but also a pleasant evening with a smooth and fast service of the ...

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