Due diligence and certificates for buying luxury real estate in Belgium

Additional checks that are often advisable for luxury real estate

For high-end property, a purely administrative check rarely suffices. Depending on the property, additional inspections may be advisable to avoid unpleasant surprises after purchase.

Technical condition of the building

For character homes, renovated villas or architectural properties, it makes sense to give extra attention to the roof, facades, moisture issues, foundation, exterior joinery and visible wear. Even with a pristine presentation, underlying maintenance or renovation costs can be significant.

Technical installations and comfort systems

Luxury real estate often includes home automation, alarm systems, climate control, elevators, wellness installations, heated outdoor amenities or pool systems. Determine what is present, what is included in the sale, and the condition of these installations.

Permitted extensions and outbuildings

Pool houses, guest houses, carports, garden structures, verandas or later extensions increase the appeal, but they must also comply with planning rules. What is visible must correspond to the permits and the official file information.

Easements, access and privacy

Look at easements, access rights, passages, plot boundaries and other legal elements that may affect use.

Specific point of attention for luxury apartments: VME documents

In addition to the private part, the documents of the association of co-owners (VME) are crucial.

• Minutes of the general meeting – to detect planned works, discussions or disputes.
• Reserve fund and working capital – to assess the financial health of the building.
• Ongoing or planned renovations – e.g. to the facade, roof, elevators or shared technical systems.
• Co-ownership regulations and statutes – to understand use restrictions and rights.

When in the purchase process should you check these certificates?

Review the file as early as possible. If you have serious interest, request the available certificates and documents and have them assessed. This allows you to discuss ambiguities in good time, request additional information, or correctly formulate conditions before signing the preliminary sale agreement. Waiting until the notarial phase increases the risk of delay or renegotiation. In that phase you will often also look at the tax impact, such as the registration duties in Wallonia. Also estimate the deed costs straight away via notary costs when purchasing luxury real estate (2026).

How due diligence helps you make a better decision

A thoroughly reviewed file provides insight into the actual condition, legal and technical points of attention, and possible investments after purchase. That is relevant for risk management, price assessment, negotiation and future use.

Guidance for a well-prepared purchase trajectory

An experienced real estate partner helps you understand the file, flag points of attention and structure the timing towards the preliminary sale agreement and the deed. Christie’s International Real Estate Belgium supports buyers and advises on the assessment of characterful and distinctive property features, so that you decide from a better-informed position.

Frequently asked questions

Are certificates sufficient to purchase luxury real estate safely?

No. Mandatory certificates are an important starting point, but for luxury real estate additional checks are often advisable, such as the technical condition of installations, permitted extensions, VME documents for apartments, and alignment between the file and the actual situation.

Which documents are especially important for a luxury apartment?

Almost always the VME documents: minutes, information about the reserve fund and working capital, planned works, and the co-ownership regulations.

When is the best time to request these documents?

As early as possible in the process. If you have serious interest, have the documents collected and assessed in order to detect ambiguities sooner and avoid delays at the preliminary agreement or deed.

Is due diligence for a villa different from that for a standard house?

Often yes. Villas and exclusive properties usually have more technical systems, outbuildings, extensions and specific plot characteristics. As a result, the investigation is broader and you look beyond only the legally required certificates. For rented properties in Brussels, the tenants’ right of first refusal may also be relevant.