vente publique bruxelles · article
Public auction property sales in Brussels
Guide to public auction property sales in Brussels: bidding procedure, types of auction, advantages for the seller and advice for buyers.
A public auction is a method of property transaction that offers transparency and speed. In Brussels, it is used in a variety of contexts: inheritances, repossessions, judicial sales, but also voluntary sales when the owner wishes to maximise the price through competitive bidding.
Types of public auction in Belgium
Voluntary public auction
The owner freely chooses to sell at auction, often to accelerate the process or to achieve the best price for a property that attracts broad interest. This is typically the case for a property in a sought-after Brussels neighbourhood, where buyer competition works in the seller’s favour.
Judicial public auction
Ordered by a court, it arises in situations of property repossession (failure to repay a mortgage), judicial liquidation or forced division (between ex-spouses or co-heirs who cannot agree). The owner has no say in this case.
Overbid sale (or notified private sale)
After a private sale signed before a notary, any third party may, within 15 days, submit an overbid of at least 5% of the price. If so, a public auction is organised with the overbid price as the opening bid.
How a Brussels public auction works
The preparation phase
The notary draws up the terms of sale (cahier des charges), which describes the property, the conditions of sale, known easements and costs payable by the buyer. The terms are available at the notarial practice and often online. Property viewings are organised on fixed dates.
The auction session
The sale takes place at a public session, at the notarial practice or in a dedicated room. The notary announces the opening bid; bidders make ascending bids. When no further bids are forthcoming, the notary provisionally awards the property to the final bidder.
The right of overbid
During 15 calendar days after the provisional award, any person may submit an overbid of at least 5% above the award price. If an overbid is submitted, a new session is organised with the overbid price as the floor. This mechanism protects the seller against an award price that is too low.
The definitive award
If no overbid is submitted within the time limit, the award becomes definitive. The buyer must pay the price and costs within the time limit set in the terms of sale (generally 6 weeks).
Advantages of a public auction for the seller
Price transparency
The price is set by the market in real time. No opaque negotiation: the highest bidder wins. This is particularly useful in inheritance or divorce situations where the parties need to ensure that the property was sold at a fair market price.
A controlled timetable
A public auction imposes a fixed schedule (date of the session, overbid period, payment deadline). The seller knows when the transaction will be concluded, which facilitates planning.
No negotiation
The auction system eliminates the bilateral negotiation phase, which is often a source of stress and uncertainty. The price rises until demand is exhausted.
Points of attention for the seller
The risk of a low price
If the property attracts few bidders, the award price may remain close to the opening bid, or even fall short of expectations. The right of overbid provides a partial safety net, but does not guarantee a satisfactory minimum price.
Buyer’s costs
The public auction fees (reserve price duties, publicity costs, notary’s fees) are added to the 12.5% registration duties. The total cost for the buyer is higher than in a private sale, which may deter some bidders and cap the final price.
The importance of the opening bid
The opening bid is a strategic lever. Set too high, it discourages bidders; set too low, it can create an impression of a distressed sale. A prior expert valuation allows a market-consistent opening bid to be set.
Online public auctions
The Biddit tool, developed by the Belgian Notaries Federation, has enabled online participation in auctions since 2018. The platform has democratised access to public auctions and broadened the pool of potential buyers, including foreign investors interested in the Brussels market.
When is a public auction the right choice?
A public auction is particularly well-suited in the following situations:
- Inheritances with co-heirs: guarantees transparency and a market price
- Highly sought-after atypical properties: competitive bidding can push the price beyond estimates
- Need for certainty and speed: fixed schedule with the transaction concluded in 8 to 12 weeks
For standard properties, a private sale remains the dominant transaction method in Brussels and may be more advantageous if the seller has sufficient time.
Do not hesitate to contact us to assess whether a public auction is the most suitable method for your situation.