A sales agreement can be invalidated if work done on a house does not have the conformity certificate required by the town hall. The authentic sales deed, signed at the notary’s office, can then be contested by the buyer or a third party, even several months after the transaction.
Not presenting this document opens the door to administrative sanctions, financial penalties, and sometimes the obligation to restore the property to its original state. Some insurance companies do not hesitate to exclude any coverage if a claim arises due to non-compliant modifications, which seriously complicates damage management.
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Why the conformity certificate is crucial in a real estate purchase
The conformity certificate plays a central role in the real estate transaction. As soon as a property has been subject to a building permit, a development permit, or a prior declaration, the DAACT, declaration attesting to the completion and conformity of the work, takes over from the classic certificate. This document must be submitted to the town hall within 90 days after the completion of the work. Otherwise, the notary may very well postpone the signing or require a suspensive clause to regularize the situation. Sellers and buyers then find themselves dependent on this process.
Everything hinges on compliance with urban planning rules. The DAACT conditions the ten-year guarantee, the damage insurance, and even the declaration to the tax administration. As long as this document is missing, a recent house loses its value and the transaction becomes mired in uncertainty.
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The town hall has a period of 3 to 5 months to check the work after receiving the DAACT. If it detects an anomaly, it can require compliance or initiate legal proceedings. Hence the importance of being diligent from the outset. The buyer has the right to request this certificate or to ask for a regularization clause to be included in the deed signed before the notary.
The issue of the absence of a conformity certificate and prescription raises major stakes. The legal timeframe to act or regularize depends on the date of the completion declaration and the applicable urban planning rules. As long as the situation is not regularized, the threat of legal action or a contested transaction looms over the owner.
What are the concrete risks in the absence of a conformity certificate for your work?
Failing to provide a conformity certificate or a DAACT exposes one to a range of sanctions and complications. The first risk: administrative sanction. A town hall inspection can lead to an immediate compliance requirement, or, in extreme cases, a request for total or partial demolition if the work deviates from the established rules. The construction site can then become a source of costly disputes.
Financially, the costs can escalate quickly. Between administrative fines, daily penalties, and corrective work, each step is expensive. Without a conformity certificate or DAACT, it becomes impossible to benefit from the ten-year guarantee or the damage insurance. A claim? The owner bears the full cost of repairs. Additionally, there is the devaluation of the property: a non-compliant property sells poorly, or not at all.
Here are the main risks to anticipate:
- Sale blockage: the notary may refuse to sign the final deed if the certificate is missing.
- Dispute with the buyer: the discovery of an irregularity opens the door to a procedure for hidden defects, or even to the cancellation of the sale.
- Removal of public aid: without compliance with RE 2020 or RT 2012, certain financing or grants are simply inaccessible.
- Increased energy costs: if the work ignores thermal standards, the bill rises and the comfort of the occupants decreases.
Moreover, the town hall may refuse to register the declaration of completion of the work in case of non-compliance. The result: no possible regularization, tax registration blocked, and the property risks remaining unsellable, marked in the real estate market.
Dealing with an irregular situation: how to react and who to contact
Discovering that a conformity certificate or a declaration attesting to the completion and conformity of the work (DAACT) is missing requires methodical action. The first step: conduct an audit of the existing situation. This involves checking whether the work complies with the urban planning rules that applied at the time of its execution. A building expert can help identify discrepancies and prepare for the next steps.
To regularize the situation, it is necessary to gather all the required elements: plans, notices, thermal certificates, various supporting documents. Depending on the case, it will then involve submitting a declaration of completion of the work, a request for a modification permit, or a regularization file to the urban planning department of the town hall. The community then has three to five months to verify compliance and make a decision. If necessary, it can require additional work, request a modification permit, or even impose demolition in the most severe situations.
Getting support from a urban planning law expert or a seasoned professional helps secure the process. An experienced project manager knows how to communicate with the administration and navigate each step. The declaration of completion of the work triggers the tax declaration and sets the starting point for the prescription period.
Here are the steps to plan for resolving an irregular situation:
- Preliminary audit: analysis of the current state and identification of discrepancies
- File preparation: gathering plans, supporting documents, and technical documents
- Submission to the town hall: DAACT, modification permit, or regularization file, as applicable
- Professional support: engaging an expert or project manager to successfully carry out the process
A well-prepared file, appropriate advice, and proper regularization: this is the only way to prevent property from becoming a burden. Compliance, sometimes overlooked, can determine the fate of a house or a family heritage.