Promise of Sale: When a Simple Promise Becomes a Forced Sale?

You signed a "compromise" to buy a house in Alès, paid a deposit, then changed your mind? Or conversely, as a seller in Bagnols-sur-Cèze, you think you can withdraw without consequences? The question is burning: how far does a simple "paper" bind you? A 1970 decision of the Court of Cassation, still relevant today, provides a clear answer. But be careful, everything depends on the wording of your promise.

The Facts: A Story Like Any Other

Mr. Dorey, a property developer, signed on 28 May 1966 a "promise of sale" with the R. spouses for a building plot, at a price of 160,000 francs (approximately 24,000 euros). The deed states that "the buyer and sellers would only be bound by this promise if it was followed by the final sale within a certain period." Mr. Dorey gives a cheque for 16,000 francs on account of the price. But on 13 June, he informs the estate agent that he is renouncing the purchase. The sellers bring proceedings before the tribunal to obtain payment of the price or damages.

Before the Court of Appeal of Nîmes, the judges analyse the agreement: despite the cautious wording, they consider that the parties exchanged reciprocal promises — a promise to sell and a promise to buy. They order Mr. Dorey to pay 16,000 francs by way of damages. He appeals to the Court of Cassation, arguing the lack of registration of the deed within ten days, as required by Article 7 of the Law of 19 December 1963 (now Article 1840 A of the General Tax Code). Without this registration, the promise would be void. The Court of Cassation dismisses his appeal: the trial judges, in the exercise of their sovereign power, held that it was a synallagmatic promise of sale (i.e., a promise that binds both parties from signature), and not a unilateral promise. Consequently, the registration requirement did not apply.

The Court's Reasoning — Analysed

The heart of the dispute concerns the legal classification of the promise. In law, there are two main categories:

• Unilateral promise of sale: the seller undertakes to sell, but the buyer has the freedom to exercise the option or not. Until the option is exercised, the buyer is not obliged to buy.
• Synallagmatic promise of sale (or compromise): both parties mutually undertake to sell and buy. Upon signature, the sale is in principle perfected, subject to any conditions precedent.

In this case, the judges considered that even though the deed said "would only be bound if...", the mention "promise of sale and purchase" and the payment of a deposit revealed the true intention of the parties to create immediate reciprocal obligations. They therefore recharacterised the deed as a synallagmatic promise. Consequently, Article 1840 A of the CGI (registration requirement on pain of nullity for unilateral promises) did not apply. The Court of Cassation upholds this reasoning: the trial judges have sovereign power to interpret the common intention of the parties.

What few people know is that this decision is a classic in the field. It illustrates the principle that courts look at the reality of the agreement, not just the words chosen. "Promise of sale and purchase" is a formula that, unless a very clear contrary clause exists, carries a reciprocal undertaking.

What This Means for You — Practically

For a seller-owner in Bagnols-sur-Cèze: if you sign a document entitled "promise of sale and purchase" and the buyer pays a deposit, you are bound. You cannot withdraw without risking damages. Example: you sell your house for €250,000, the buyer pays €25,000. If you withdraw, you may be ordered to pay damages equivalent to the loss (e.g., the loss of a chance to buy another property).

For a buyer: if you sign such a deed and change your mind, you lose your deposit and may even be sued for payment of the price if the sale is deemed perfected. undefined, I have encountered cases where an individual in Alès signed a compromise for a flat at €180,000, paid €18,000, then lost his job. He had to negotiate a settlement to recover part of his deposit, but lost €10,000.

For an estate agent or notary: drafting is crucial. If you want a unilateral promise, the word "unilateral" must appear and the option clause must be clear. A mere mention of "promise of sale" without precision may be recharacterised.

Four Tips to Avoid This Type of Dispute

• Read the title and clauses of the deed carefully. If the document is called "promise of sale and purchase" or "compromise", you are likely bound upon signature. Do not sign unless you are sure of your decision.
• Require a condition precedent for loan approval. Even in a synallagmatic promise, you can include a clause that cancels the sale if you cannot obtain financing. This is your safety net.
• Never pay a deposit without a written document specifying what happens to it. The deposit may be a "guarantee deposit" that will be returned if the sale does not go through for reasons not attributable to you, or a "payment on account" that binds you definitively. Have the nature of the sum clarified.
• Consult a lawyer before signing. For a few hundred euros, you will avoid years of litigation. A professional can advise you on the classification of the deed and insert protective clauses suited to your situation.

Further Reading: Related Case Law and Developments

This 1970 decision is part of a consistent line: the Court of Cassation has always favoured the true intention of the parties over the letter of the contract. For example, in a judgment of 13 February 1985 (n° 83-15.647), it held that a promise to buy subject to a potestative condition (dependent solely on the buyer's will) could be recharacterised as a synallagmatic promise if the parties had manifested their definitive agreement. Conversely, recent case law (Civ. 3e, 20 May 2021, n° 19-23.576) reminds that if the unilateral promise is clearly drafted and the option has not been exercised, the buyer can withdraw without penalty. The trend is therefore towards legal certainty through precise drafting. In future, the courts will continue to scrutinise documents to discern the true will of the parties.

What You Absolutely Must Remember

FAQ

1. What is the difference between a unilateral promise and a synallagmatic promise?
In a unilateral promise, only the seller is bound; the buyer has a period to decide. In a synallagmatic promise, both are mutually bound from signature.

2. Can I withdraw after signing a "compromise de vente"?
No, unless a condition precedent (such as obtaining a loan) is not fulfilled. Otherwise, you risk losing your deposit and being ordered to pay damages.

3. What should I do if the other party withdraws?
You can send a formal notice (registered letter with acknowledgement of receipt) requiring them to proceed with the sale by notarial deed. If they refuse, apply to the judicial court for specific performance or damages.

4. Is registration of the promise mandatory?
For a unilateral promise, yes, on pain of nullity (within 10 days). For a synallagmatic promise, registration is not mandatory but recommended for a fixed date.

5. Can a simple email constitute a promise of sale?
Yes, if the electronic exchange contains the essential elements (property, price, parties) and manifests a firm agreement. Tribunals may recharacterise an email as a synallagmatic promise if the intention to be bound is clear.

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