Buying property at auction is appealing because of the promise of a price below market value. The reality of total costs, payment deadlines and the risk of competing bids calls for a more detailed look than the usual guides provide. This article compares the three main types of property auctions and breaks down the budget items not reflected in the hammer price.
Judicial, notarial or government auction: comparing property auction formats
The type of sale determines the fees, legal framework and level of risk. Confusing them is like comparing financial products without reading the terms and conditions.
| Criterion | Judicial sale | Notarial sale | Government sale |
|---|---|---|---|
| Origin of the property | Property seizure, liquidation | Inheritance, co-ownership, seller’s decision | Property owned by the State or local authorities |
| Presiding officer | Lawyer (bids placed by a lawyer) | Notary | Government property administration |
| Can the sale be outbid? | Yes, within 10 days, by at least 10% of the price | Varies according to the terms and conditions | No |
| Deadline for paying the price | 2 months after the final award | Generally 45 to 60 days | Varies, often shorter |
| Fees in addition to the price | Taxed enforcement costs + transfer duties | Notarial fees + transfer duties | Transfer duties |
At a judicial sale, the buyer must use a lawyer to place bids. This representation fee is added to the enforcement costs, making the final bill considerably higher than the price called out in the auction room.
Notarial auctions offer a more flexible framework. The property often comes from an inheritance or voluntary sale, and its condition is generally better documented. To find available lots in each category, the Encherimmo property website aggregates auction listings from across the country.

The true budget for buying at auction: costs hidden by the hammer price
The price shown in the terms and conditions of sale is a starting bid, not the total cost. Buyers need to factor in several additional expenses.
- Taxed enforcement costs at a judicial sale cover the expenses incurred by the creditor to arrange the seizure. The amount is listed in the terms and conditions, but ask for it explicitly before the sale to avoid surprises.
- Transfer duties (commonly referred to as “notary fees”) are payable in addition to the price, regardless of the type of sale. They are calculated on the hammer price, not the starting bid.
- At a judicial sale, if the price is not paid or deposited within two months, interest accrues on the price at the statutory rate and the property may be put up for auction again. The defaulting successful bidder then forfeits their deposit.
- Lawyer’s fees (judicial sale) or notary’s fees (notarial sale) are separate costs that are rarely included in quick estimates.
Requesting a detailed breakdown of all costs before the auction hearing is the only reliable approach. Flat-rate estimates (“allow around X%”) vary too much depending on the case to serve as the basis for a financing plan.
Mortgage financing and auctions: a tight timeline
The two-month deadline for depositing the price at a judicial sale creates a practical problem: most mortgage applications take a similar amount of time to process. Buyers who have not secured an agreement in principle before the hearing risk being unable to pay on time.
Unlike a conventional sale, the successful bidder is not protected by a mortgage contingency. If financing falls through, the deposit is forfeited and the property is put up for auction again at the defaulting bidder’s expense.
Outbidding and final award: what happens after the hammer falls
In a property seizure, the outcome of the initial hearing is not final. The French Code of Civil Enforcement Procedures allows anyone to submit a higher bid within ten days of the sale, provided it is at least 10% above the principal hammer price.
A new hearing is then scheduled. The initial successful bidder may take part, but will face open competition. This mechanism protects creditors by maximising the sale price, but it weakens the position of a buyer who thought the deal was done.
How to factor the risk of being outbid into your strategy
There are two main approaches. The first is to bid high enough to discourage any further bid of 10%. The second is to accept the risk and keep enough room in the budget to bid again at the second hearing.
In either case, setting a maximum price before entering the auction room is the best safeguard. Exceeding your limit in the heat of competition is the most widely documented pitfall of property auctions, and no rental yield can make up for an excessive purchase price.

Private sale before the auction: a little-known alternative in property seizure cases
Before a property seizure reaches the auction hearing, the debtor can ask the judge for permission to sell the property privately. This procedure, provided for by the French Code of Civil Enforcement Procedures, can sometimes secure a higher price than a forced sale would achieve.
For investors, this means a property identified in a seizure case may disappear from the auction schedule if a private sale is authorised. Monitoring preliminary hearings, where the judge rules on the method of sale, can help you anticipate this scenario.
Buying property at auction remains a viable way to acquire real estate, provided you treat the hammer price as a starting point for your budget, not the final cost. The two-month deadline, the lack of a mortgage contingency and the risk of a 10% higher bid are three constraints not found in the conventional market. Factoring them into your calculations before entering the auction room is what separates a well-managed investment from an unpleasant financial surprise.



