House in Harelbeke

The owner of this property in Harelbeke gave us the assignment to build a low-energy house which is easily convertible into a passive house. Both in design and construction of the house we strived to keep the ecological footprint to a minimum. The following measures were taken to minimize the impact on the environment:

  • using environmentally friendly techniques that have little or no impact on the user’s quality of life and the surroundings
  • using ecologically responsible materials in the construction of the home
  • installing sustainable energy sources for electricity and warm water
  • optimally insulating the entire house

Choosing long-term sustainability solutions

This sustainable, ecological low-energy house was built in such a way that it could easily be transformed into a passive house by implementing some simple technical changes. Thanks to an extended floor, wall and roof insulation of the house a passive shell was created: an air tight building envelope between the interior and the exterior of the house. We placed solar heaters on the roof for a sustainable and profitable warm water production.


To build a passive house is a nice thing. But to fully commit to this philosophy, its construction also has to be ecological. We therefore opted for:

  • mainly materials labeled with an environmental class 1 to 3* which impact the environment the least
  • absolutely no materials which have a higher formaldehyde emission, which is harmful, than wood
  • wood with an FSC or PEFC label showing it comes from sustainable forests
  • thermally modified planking which has been heated in an environmentally friendly way


Do you want to learn more about this project or (re)build your own passive house ? Contact us today for an appointment without engagement.