Key points
- In Q3 2026, the average house price in Brussels reached €609,227 (+4.8%) and the average apartment price €301,666 (+1.7%).
- The number of sales is stable in Brussels (-0.1%), while it fell 2.2% in Belgium and 5.1% in Wallonia.
- Rising interest rates shrink buyers' budgets: a correctly priced property sells, an overpriced one stays online.
- If your decision to sell is made, there is little point in waiting: start with a valuation based on comparable sales in your neighbourhood.
The Q3 2026 figures for Brussels
The notaries' property barometer published on 13 October 2026 (notaire.be) covers the first nine months of the year. While the Belgian market is slowing down, Brussels stands out:
- Houses: average price of €609,227, up 4.8%.
- Apartments: average price of €301,666, up 1.7%.
- Number of sales: virtually stable (-0.1%) compared with Q3 2025. House sales fell 1.8%, apartment sales rose 1.2%.
By comparison, transactions fell 2.2% nationally and as much as 5.1% in Wallonia. Brussels remains the most resilient market in the country.
Why the market is cooling elsewhere
The notaries are clear about the cause: "Credit has become more expensive in recent months, which has led to a slight slowdown in our property market" (Renaud Grégoire, spokesperson for notaire.be). Higher interest rates mechanically reduce the budget of buyers who need a mortgage: for the same monthly repayment, they can borrow less.
Inflation is the other key factor: it stood at 4.69% at the end of September 2026. Across Belgium, house prices (+3%) are therefore rising more slowly than inflation. In Brussels, houses (+4.8%) roughly keep pace with inflation, while apartments (+1.7%) lose a little value in real terms.
Who is buying in Brussels in 2026?
The average buyer in Brussels is 41 years old for a house and 42 for an apartment. The most active age groups are 36-40 for houses (23% of purchases) and 31-35 for apartments (20%). Most of them finance their purchase with a mortgage, so they are directly affected by rising rates.
In practice, these buyers compare more, visit more and negotiate harder. A property listed above its market value stays online, while a correctly priced one still sells quickly.
Should you sell now or wait?
Nobody can predict where interest rates will go. But the figures point to three things:
- Brussels prices are at a historic high. Selling today means selling from the highest price base Brussels houses have ever had.
- Transaction volumes are holding up in Brussels. Demand is there, unlike in regions where volumes are clearly falling.
- If rates keep rising, buyers' budgets shrink. Waiting is not risk-free: a buyer who can borrow less tomorrow will offer less.
If your decision to sell is already made (relocation, inheritance, separation, buying another home), there is little reason to postpone it. If you are still hesitating, the first step is simply to find out what your property is worth today.
Municipality by municipality: a multi-speed market
Regional averages hide big differences. A townhouse in Ixelles, Uccle or Woluwe-Saint-Pierre does not follow the same trend as a terraced house in Anderlecht, Evere or Molenbeek, or an apartment needing renovation in Schaerbeek. The condition of the property, its energy rating (EPC), outdoor space and access to public transport often matter more than the municipality itself.
That is why a serious valuation is based on comparable sales in your neighbourhood, not on an average. Read more: selling in Schaerbeek, selling in Ixelles, Uccle or Etterbeek.
Selling in a more demanding market: our advice
- Set the right price from day one. With more cautious buyers, an over-ambitious price wastes the first weeks, which are the most important. How long does it take to sell in Brussels?
- Prepare your file in advance. EPC certificate, soil certificate, planning information: a complete file reassures the buyer and their bank. All about the EPC certificate →
- Present the property well. Professional photos and grouped viewings over 2 to 3 weekends create momentum and competing offers.
- Reduce your selling costs. On a house at the Brussels average price (€609,227), the difference between a 3.5% and a 2% commission (excl. VAT) is more than €9,000. How our 2% excl. VAT private sale works →
Frequently asked questions
Are property prices falling in Brussels in 2026?
No. According to the notaries' Q3 2026 barometer, the average house price in Brussels reached €609,227 (+4.8%) and the average apartment price €301,666 (+1.7%) over the first nine months of the year.
Is it a good time to sell in Brussels?
Brussels prices are high and the number of sales is stable, unlike in Wallonia. Rising interest rates do reduce buyers' budgets, so if your decision to sell is made, there is little point in postponing it.
How much is my house in Brussels worth?
The regional average is not enough: value depends on the municipality, neighbourhood, condition, EPC and recent comparable sales. The first meeting with Diamant Consult is free and without obligation, anywhere in Brussels: that is where we set the asking price together.
Sources
Thinking of selling? Diamant Consult sells your house or apartment anywhere in Brussels for 2% excl. VAT, all in: free first meeting, professional photos, Immoweb listing, viewings and negotiation through to the notary deed. Book a meeting →