Property with Planning Violations: Sell or Regularise? Advice for Owners

In Belgium, a town planning or building violation occurs when work has been carried out on a property without a valid permit, or when the execution deviates significantly from the original plans. These infractions can range from minor issues, like an oversized garden shed, to major structural problems such as creating an illegal apartment or converting a garage into a living space. Every region—Flanders, Wallonia, and Brussels—has its own specific regulations and limitation periods for such violations.

Ignoring these issues is often impossible during a sale, as notaries are legally obliged to request urban planning information. If the property does not match what was originally approved, this creates a cloud over the title. For owners in difficult situations like inheritance or divorce, discovering these hidden legal issues can be both stressful and financially draining.

Regularising a building violation involves submitting a retroactive permit application to the municipality. This process typically requires the help of an architect to draw up new plans and demonstrate that the current situation complies with local spatial planning rules. There is no guarantee of success; if the municipality deems the infringement unacceptable, they may demand that the building be restored to its original state.

Furthermore, the costs can escalate quickly between architectural fees, administrative taxes, and possible stability studies. For many owners, especially those facing bankruptcy or urgent relocation, the time required—often several months—is a luxury they simply do not have. The uncertainty of the outcome often weighs heavily on the property's market value.

It is legally possible to sell a house with a building violation, provided the buyer is fully informed and accepts the situation. However, finding a private buyer who is willing to take on the risk and the administrative burden is difficult. Most traditional banks will refuse a mortgage to buyers if there is a significant environmental or planning risk, which drastically reduces the pool of potential candidates.

This often leads to a significant price reduction on the open market. For those who need a swift and certain exit, working with a professional buyer like Pandpartners.be can be a solution, as they purchase the property in its current state, taking over the legal and administrative risks. This allows the seller to close the chapter without the burden of a long-term regularisation procedure.

The choice between regularising or selling often depends on the region. In Flanders, for example, there are specific 'presumption of permit' rules for older buildings, whereas the rules in Brussels and Wallonia can be stricter regarding the type of proof required for historical situations. Navigating these regional codes requires expert legal and technical knowledge.

Ultimately, the decision should be based on your financial capacity and your timeline. If you have the time and funds to wait for a permit, regularisation might maximize the sale price. However, if you are under pressure due to an inheritance or a mandatory renovation obligation, a direct sale may be the most pragmatic way to avoid legal penalties and financial loss.