Apparent authority of the estate agent: the owner bound by the acts of his intermediary

Imagine: you own a plot of land in Hénin-Beaumont. To sell it, you entrust the search for buyers to an estate agent. He finds clients, collects deposits, signs preliminary sale agreements in your name. Then he disappears with the money. The buyers turn against you. Can you refuse to sell on the grounds that you never gave him authority to collect the funds? The Court of Cassation answered: no, if you led the buyers to believe that this man was your agent.

This question is asked by hundreds of owners every year. What really binds an owner to a buyer? The answer lies in a key concept: apparent authority. When an intermediary behaves as your representative and you allow it, you may be held liable for his acts, even without a written mandate.

The judgment of 21 October 1970 (appeal no. 69-11.397) is an essential reference. It sets the limits of the owner's liability for the actions of his agent. Full analysis of this decision and its practical consequences for owners and buyers.

The facts: a story that happens every day

Mr X, owner in Hénin-Beaumont, wanted to sell several plots of land. To do so, he turned to an agent, Mr Volny, with whom he had already worked. Their agreement was simple: Volny was to find buyers and negotiate the sales. But very quickly, things went wrong.

Volny did not limit himself to introducing clients. He directly collected the sums paid by the buyers – sometimes in cash, sometimes by cheque made out to himself. He drafted and had preliminary sale agreements signed in which he presented himself as "agent of the owner". Mr X, whether informed or not, said nothing. He let it happen.

Several buyers, including the company Asso, paid substantial deposits (some speak of several tens of thousands of francs at the time). Volny collected them and… paid nothing to the owner. Worse, he did not proceed with the sales. The buyers, who had signed a preliminary agreement, demanded the execution of the sale by notarial deed (the final signing before the notary). Mr X refused: he had never given Volny authority to collect the money, nor to sign on his behalf.

The case went to court. The buyers, supported by the company Asso, asked that Mr X be ordered to complete the sales. The Court of Appeal ruled in their favour. Mr X appealed to the Court of Cassation. His argument: Volny was only a simple agent, not a representative. He did not have the power to bind him.

The reasoning of the court — analysed

The Court of Cassation dismissed the appeal. It approved the Court of Appeal's finding of apparent authority.

Apparent authority (or the theory of apparent mandate) is a jurisprudential construction that protects third parties acting in good faith. In practice, even if a person has not received an official mandate (written authority), they can bind the person for whom they act if the circumstances reasonably lead others to believe that they are authorised.

In this case, the trial judges found that Mr X had expanded Volny's role: he had allowed him to collect sums, sign preliminary agreements and present himself as his agent. The buyers, seeing this, could legitimately believe that Volny had full authority. The Court of Cassation validated this reasoning: "the trial judges could find that there was apparent authority and that this owner was bound by the acts thus concluded."

The underlying legal basis is Article 1998 of the Civil Code (old, now re-enacted as Article 1156 of the same Code), which provides that the principal is bound to perform the obligations contracted by the agent in accordance with the authority given to him. But the Court extends this principle to apparent authority: even without authority, if the principal has created an appearance, he is bound.

This decision is a confirmation of previous case law (notably the "Banque de l'Indochine" judgment of 1962). It is neither a reversal nor a major development, but it forcefully reminds us of the principle of protection of third parties in good faith.

The judges also rejected Mr X's argument that he had not authorised the collection of funds. For the Court, the fact of having let Volny act for several months without protest was sufficient to create the appearance.

What this means for you — in practice

This decision has very practical implications, whether you are an owner-seller or a buyer.

For the owner-seller: You cannot turn a blind eye to what your agent does. If you let him collect deposits, draft preliminary agreements in your name and present himself as your agent, you will be bound. Imagine an owner in Bruay-la-Buissière who entrusts the sale of his house to an estate agent without a written mandate. The agent signs a preliminary agreement with a buyer and collects a deposit of €10,000. If the agent disappears, the owner must sell at the agreed price, even if he has not received the money. He must also reimburse the buyer if he refuses to sell.

For the buyer: You are protected. If you dealt with a person who presented himself as the owner's agent, and the owner said nothing, you can demand the sale. But beware: you must be in good faith. If you knew that the agent had no authority, the protection falls.

Example with figures: In 2023, within the jurisdiction of Béthune, a buyer paid a deposit of €15,000 to an estate agent for a plot of land in Hénin-Beaumont. The agent disappeared. The owner refused to sell. The buyer sued the owner on the basis of apparent authority. The court ordered the owner to complete the sale and to pay damages of €5,000 for loss of enjoyment.

If you are in this situation: You must act quickly. For a buyer, seize the judicial court within 5 years of signing the preliminary agreement (standard limitation period). For an owner, as soon as you notice an excess of authority, notify the intermediary and the buyers in writing that you revoke any mandate.

Four tips to avoid this type of dispute

• Draft a written and precise mandate: Clearly state what the agent is allowed to do: prospect, negotiate, but never collect funds or sign a preliminary agreement on your behalf. Mention that any collection must be made directly to your account or that of the notary.
• Do not let the intermediary collect sums: Even for small amounts. Require buyers to pay deposits to the notary or into a escrow account. If you authorise an exception, do so in writing and limit it in time.
• Monitor your agent's actions: Ask him for a copy of each signed preliminary agreement. Check that he does not present himself as "agent" without your consent. If you discover an abuse, react immediately by registered letter with acknowledgement of receipt.
• If in doubt, consult a lawyer before signing: Whether you are a seller or a buyer, a professional can verify the regularity of the mandate and save you years of proceedings. In Hénin-Beaumont as elsewhere, a 30-minute consultation can enlighten you.

Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.

Further reading: related case law and developments

The theory of apparent authority was established by a famous judgment of the Court of Cassation in 1962 ("Banque de l'Indochine" judgment, Commercial Chamber, 13 June 1962). Since then, it has been applied in many areas: mandate to sell property, mandate to manage a company, mandate to take out a loan.

In real estate matters, the Court of Cassation has rendered several judgments to the same effect. For example, in 1995 (Civ. 1re, 4 July 1995, no. 93-15.211), it held that an owner who allows an estate agent to sign a preliminary agreement in his name is bound, even if the agent had no written mandate. The trend is therefore constant: to protect third parties in good faith.

This case law also applies to real estate professionals. An agent who acts without a mandate may be held liable under Article 1240 of the Civil Code (compensation for damage caused by his fault).

For the future, the case law evolves little on this point. The courts continue to apply apparent authority strictly. Owners must therefore be vigilant: mere tolerance can bind them heavily.

Frequently asked questions

1. What exactly is apparent authority? It is a situation where a person (the representative) acts without official authority, but where the circumstances (conduct of the represented person, absence of protest) reasonably lead a third party to believe that he is authorised. The represented person is then bound as if he had given authority.
2. Can I refuse to sell if the agent collected the money without my consent? No, if you allowed it. According to the 1970 decision, allowing the agent to collect sums and sign preliminary agreements creates an appearance of authority. You will be obliged to sell, unless you can prove that the buyer was in bad faith (knew that the agent had no authority).
3. What are the time limits for legal action? For a buyer who wants to force the sale, the limitation period is 5 years from the signing of the preliminary agreement (Article 2224 of the Civil Code). For an owner who wants to contest apparent authority, he must act as soon as he becomes aware of the facts.
4. Can I revoke my agent's mandate at any time? Yes, but revocation does not erase prior acts. If the agent has already signed a preliminary agreement before the revocation, you may be bound if the appearance existed at that time.
5. What should I do if I am a buyer and the agent has disappeared with my deposit? You can sue the owner-seller for specific performance of the sale. If you prefer to get your money back, you can claim damages. In any case, consult a lawyer promptly.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →