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2/7/2025
The sales agreement is a key step in any real estate transaction. However, many buyers or sellers are wondering: Who is authorized to write it? Is it the notary, the real estate agent, or can you do it yourself? The answer depends on the context, but also on the level of legal certainty desired. Here is a comprehensive guide to understanding the possible roles in writing this document.
The sales agreement is a Pre-contract signed between the seller and the purchaser. It marks a firm agreement on the sale of real estate, before the signing of the authentic act at the notary.
This document sets out the Essential conditions of sale : the price, the deadlines, the terms of payment, the suspensive conditions (in particular the obtaining of a loan), technical diagnoses, and any specific clauses. Legally, the compromise is binding on both parties. If one of them retracts outside the legal deadline or does not respect its commitments, Penalties May Apply.
Discover all the steps of a real estate purchase in this article.
The sales agreement is a strong contractual commitment between the buyer and the seller. It is also called “synallagmatic promise of sale” because both parties commit themselves to each other : the seller promises to sell, the buyer promises to buy, at an agreed price and under agreed conditions.
For the buyer, it marks the start of a 10-day withdrawal period during which time he can opt out at no cost. After this period, if he withdraws without justification provided for in the clauses (such as a refusal of a loan), he loses his security deposit (usually 5 to 10% of the price).
For the seller, it becomes very difficult to go back without the risk of penalties or a summons to court. So the compromise is a key step, which sets the legal and practical bases of the sale: prices, deadlines, diagnoses, suspensive conditions...
Once signed, it secures the transaction and starts the countdown to the final act.
The sales agreement is a key step in any real estate transaction. It can be drawn up by a real estate agency, a notary or directly between individuals (under private signature). In any case, this document formalizes The agreement between the buyer and the seller on the essential conditions of the sale: price, deadline, suspensive conditions (such as obtaining the loan), diagnoses, etc.
To write it, the simplest and most secure way is to Go Through a Notary. The cost is approximately 300 to 400€, generally at the expense of the seller. This professional checks the legal situation of the property, ensures that all mandatory clauses are present, and legally oversees the transaction. Once Signed, the Compromise is firmly binding on the seller and gives 10-day withdrawal period To the purchaser.
Do you need secure and fast writing? The notary of your choice or that of the seller can manage this stage in a few days.
The Notary is authorized to draft the sales agreement, whether it is a new or old property, in a condominium or a detached house. It ensures a secure legal framework, verified documents (property title, mortgages, diagnoses, easements...) and Guarantees the validity of the preliminary contract.
If you go through a real estate agency, The Real Estate Agent Can Draft the Compromise, provided you have a professional card. In this case, the compromise is often signed on the premises of the agency. This type of compromise has the same legal value, but the agent does not always check the legal aspects as closely as the notary. However, the agency works in collaboration with a notary for the rest of the process.
It is absolutely Possible to draft a sales agreement between individuals, without going through a professional. It must then be written very rigorously, with all the mandatory information: identity of the parties, designation of the property, price, suspensive conditions, calendar... An error or an omission can lead to the nullity of the compromise or to serious disputes. This option is not recommended unless you have a thorough understanding of real estate law.
The Notary is a public officer specialized in real estate law, guaranteeing the legal compliance of the sales agreement.
Its mission: Ensure the validity of the preliminary contract, integrating all the Mandatory Legal Information and in compliance with the deadlines imposed by the regulations. It checks all the documents related to the property: Title of ownership, Mortgage Situation, Pre-emption Rights, Urbanism, Potential easements, cadastre, gold Statutes of co-ownership In case of sale of a lot.
Its security role is even more crucial when buying or selling a Very Old, has Building Land, or a housing subject to specific rules (current lease, usufruct, joint ownership, etc.). Entrusting the drafting of the compromise to a notary thus makes it possible to avoid any Nullity of the Sale, Dispute Between Parties, gold Legal Challenge Linked to a poorly worded clause.
Unlike a real estate agent who can represent one of the parties, The Notary Acts Impartially. He is neither a lawyer for the buyer, nor an agent for the seller, but Guarantor of Contractual Balance.
He Explain in detail the implications of each clause (suspensive clause, penalty clause, withdrawal period, etc.), and Ensures that each party understands their rights and obligations Before signing. In This He Is A Independent Legal Advisor, able to Prevent Misinterpretations or abuses linked to unclear formulations.
When the Compromise is drawn up by the notary, the latter constitutes in parallel the Authentic Act of Sale Investigation File. It collects administrative documents (mortgage status, urban planning regulations, condominium rooms, mandatory diagnoses, etc.), Coordinates Exchanges with Banks in the Event of a Loan, and follows the evolution of the suspensive conditions.
This allows for a Fluid and Centralized Follow-up of the File, without redundancy between different actors (notary, agency, bank). Result: the sale is often finalized more quickly, with Less Risk of Blockages or Omissions.
A well-written compromise includes:
The Compromise Can Be Signed Private Under (between parties, with or without an agent) or In Front of a Notary, depending on the case.
Read the article: what are the differences between a promise and a sales agreement?
After the signing of the sales agreement, The Non-Professional Purchaser Benefits from a Right of Withdrawal of 10 Calendar Days. This period starts the day after the handing over or receipt of the compromise by registered letter with acknowledgement of receipt.
During these 10 days, the buyer can Disengage Without Justification or Penalty, by simple registered letter addressed to the seller or his representative (notary, real estate agent). This withdrawal period is Mandatory for all sales of residential property, whether it is an apartment, a house or a mixed premises (residential + professional).
⚠️ After this period, The Compromise Becomes Legally Binding. If the buyer withdraws without valid reason provided for in a suspensive clause, The Seller Can Keep The Security Deposit (often 5 to 10% of the sale price). It is therefore essential to Do Not Sign Lightly And to use this time frame to Review the contract, ask questions, or get legal advice If needed.
The Sales Agreement is always accompanied by a set of Mandatory Documents to Be Attached. These documents are intended to inform the buyer about the condition of the property and the rules applicable to its occupation. Their absence may result in the invalidity of the sale.
Some of the documents to be carefully examined include:
Fast reading is not enough. It is recommended to Check the Expenses and the Financial Health of the Condominium, gold Easements Attached to the Property, which may restrict its use. In case of doubt, the notary can help you decode these technical documents.
The sales agreement generally includes several suspensive clauses, which condition the final validity of the sale. The most common is the one related to Obtaining a home loan. It protects the buyer in the event that the bank refuses to finance the project.
But be careful:
There are also other frequent suspensive clauses:
Each clause must be Adapted to the situation of the seller and the buyer, written in a clear and precise manner. Poor wording can lead to litigation or even a forced sale. It is therefore strongly recommended to have these clauses checked by a professional (notary or legal advisor) before signing.
The sales agreement can be drawn up by several parties: The notary, The Real Estate Agent Gold The Individuals Themselves. However, going through a notary remains the safest solution to avoid mistakes and secure the transaction. It guarantees drafting in accordance with the law, deadlines respected, and balanced protection for both parties.
👉 Before signing, make sure you fully understand each clause. In case of doubt, the support of a professional is more than a comfort: it is a guarantee of serenity in your real estate project.
No, but it is highly recommended. It formalizes the agreement between the parties and frames the sale before the final act.
No The signature can be done remotely via a power of attorney or by secure electronic signature, especially at the notary.
Yes, but only by endorsement signed by both parties. This may concern a change in date, clause, or suspensive condition.
Article rédigé par Mélanie Jacquet, experte immobilière du blog MeCaza.
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