The Preliminary Sale Contract: Securing Your French Property Purchase

Once your offer has been accepted, the tone of your property journey changes immediately.

You move from negotiation… to legal commitment.

This next step—the preliminary sale contract—is where your purchase becomes real. It is no longer about “interest” or “intent.” It is about rights, obligations, and timelines that both parties must respect.

Understanding how this stage works is essential to navigating your purchase with confidence.

Compromis de Vente vs Promesse de Vente: What’s the Difference?

In France, there are two types of preliminary contracts:

1. Compromis de Vente (Mutual Agreement to Sell)

This is the most commonly used contract.

  • Both buyer and seller are legally committed to completing the transaction
  • The sale is agreed at a fixed price
  • Completion is conditional on specific “clauses suspensives” (e.g. mortgage approval)

In practical terms, once signed, both parties are bound to proceed—subject to the agreed conditions.

2. Promesse de Vente (Unilateral Promise to Sell)

This structure is slightly different.

  • The seller commits to selling the property at a fixed price
  • The buyer receives an exclusive option to purchase within a defined period (typically 2–3 months)
  • The buyer is not fully obligated to proceed

To secure this option, the buyer usually pays an option fee (indemnité d’immobilisation), typically around 5–10% of the purchase price.

If the buyer decides not to proceed (outside of valid conditions), this amount may be forfeited.

Which One Should You Choose?

In most cases, the compromis de vente is preferred for its simplicity and mutual commitment.

The promesse de vente is often used in more specific situations where flexibility is needed on the buyer’s side.

Who Prepares the Contract?

The preliminary contract can be drafted in two ways:

  • By a Notaire (formal legal authority)
  • By a real estate agent (sous seing privé, private agreement)

Even when an agent prepares the document, a Notaire is typically involved soon after to oversee the legal process.

What Information is Required?

Before drafting the contract, the Notaire must compile a detailed legal file, including:

  • Identity and legal status of both buyer and seller
  • Proof of ownership and title deeds
  • Property diagnostics (energy, asbestos, etc.)
  • Urban planning information
  • If applicable: copropriété documents (co-ownership rules, charges, meeting minutes)

This due diligence ensures that the buyer is fully informed—and legally protected.

The Obligations of Each Party

Once signed, the preliminary contract becomes a binding legal framework.

The Seller’s Obligations

  • Must sell the property at the agreed price
  • Cannot withdraw or accept another offer
  • Must provide all required legal documentation

In effect, the property is reserved exclusively for the buyer.

The Buyer’s Obligations

  • Must proceed with the purchase, subject to conditions
  • Must actively pursue financing (if applicable)
  • Must respect agreed timelines

Failure to do so without valid justification can lead to financial penalties.

The Role of Suspensive Conditions

One of the most important protections for buyers is the inclusion of clauses suspensives.

These conditions must be met for the sale to proceed.

The most common include:

  • Mortgage approval
  • Absence of legal issues affecting the property
  • Planning permissions (if relevant)

If a valid condition is not met, the buyer can withdraw without penalty and recover their deposit.

The Cooling-Off Period: Your Safety Net

French law provides an additional layer of protection for buyers.

After signing the preliminary contract, the buyer benefits from a 10-day cooling-off period.

During this time:

  • The buyer can withdraw for any reason
  • No justification is required
  • Any deposit paid must be fully refunded

This period begins the day after the contract is formally delivered (usually by registered letter).

It’s a critical safeguard—allowing time for reflection after what is often an emotional decision.

Why This Stage Matters

The preliminary contract is more than a formality—it is the foundation of your entire purchase.

It:

  • Locks in the price and terms
  • Secures the property for the buyer
  • Defines the legal roadmap to completion
  • Protects both parties through structured obligations

From this point onward, the transaction is no longer flexible—it is structured, regulated, and enforceable.

Final Thoughts: From Agreement to Commitment

Signing the preliminary contract is the moment your purchase becomes tangible.

You are no longer “trying to buy” a property—you are in the process of acquiring it.

Handled correctly, this stage provides:

  • Security for the buyer
  • Certainty for the seller
  • Clarity for everyone involved

About to sign a Compromis or Promesse de Vente?

The structure of your contract, the clauses included, and how your financing is aligned can significantly impact the success of your purchase.

At BlueSky Finance, we guide international buyers through every step—from offer to completion—ensuring your transaction is secure, compliant, and financially optimised.

Speak to our team today and move forward with confidence.