Soundwall permits in Belgium: what is allowed?
Before installing a soundwall, check whether an environmental permit is required. The rules differ per region (Flanders, Wallonia, Brussels), depending on height and placement. This guide summarises the key principles for private and business clients in Belgium and Luxembourg.
Flanders
A soundwall up to 2 m behind the front facade is usually permit-exempt. Above 2.5 m or in front of the building line, an environmental permit is mandatory. Always verify the municipal regulation.
Approved plans set the pace
Once approved, an environmental permit locks height, placement and materials of your soundwall. Get the acoustic solution right at design stage to avoid costly re-submissions.
Wallonia and Brussels
Similar principles apply under CoDT (Wallonia) and COBAT (Brussels), with local thresholds. Businesses almost always need a permit regardless of height.
VLAREM noise standards for businesses
Flemish companies must meet VLAREM II noise limits. Soundwalls are often the most efficient way to reach those limits for heat pumps, fans, transformers and industrial machinery.
Our approach
We deliver technical fiches, acoustic performance data and detail drawings you can submit with your permit application. Request a free site visit.
Frequently asked questions about soundwall permits
Do I need a permit for a 2 m soundwall in my garden?+
Usually not, if placed behind the front facade on your own plot. Always check your municipal regulation.
What noise limits apply to businesses?+
VLAREM II sets indicative values by zone and time of day. Our soundwalls are designed to reach those values.
Do you help with the permit file?+
Yes: we provide technical fiches and acoustic performance data. Your architect includes them in the application.
Related solutions
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Our experts will be happy to advise you on the best solution for your situation. Contact us for a non-binding conversation.