Do you sell a house classified as E, F or G in Soissons or in Soissons? Regulatory energy audit may be mandatory in addition to the DPE. It is important to know when to order it, to whom professional to entrust it and how to read the work scenarios given to the purchaser.
Practical guide · Regulatory information as at 1 November 2026 · Metropolitan France
In 2026, the obligation does not apply indiscriminately to all goods classified as E, F or G. It also depends on the nature of the property sold.
The scheme applies, under the conditions laid down by law, to the sale of single houses and single-property housing buildings (only one owner), when their energy ranking falls within the regulatory schedule.
| DPE class | Entry into the audit obligation |
|---|---|
| F or G | Since 1 April 2023. |
| E | Since 1 January 2025. |
| D | Extension from 1 January 2034, not November 2026. |
| A, B or C | No mandatory audit under this sales arrangement. |
If the property is subject to the device, the seller must have a regulatory energy audit carried out in addition to the DPE.
The sale of a single apartment in an ordinary condominium does not entail, solely because of its class F, the obligation of this regulatory audit.
A building comprising several dwellings but belonging to a sole proprietor may fall within the scope of the obligation. In the event of an unusual organisation of property, an analysis of the exact legal status of the building is indispensable.
Not to be confused: the DPE allocates an energy class to housing; the regulatory audit shall provide, in addition to that, an analysis of the building and of the routes of work in figures. One does not replace the other.
This work must be entrusted to a professional qualifications corresponding to mission and type of buildingindependent and properly insured. In the case of an individual house, the authorised stakeholders may include, among other things, qualified energy audit design offices, qualified architects or certain diagnostic specialists with specific audit authorizations.
Being certified to establish EPDs is not automatically enough to conduct a regulatory energy audit. Before ordering, ask for an explicit justification of the entitlement to the service « regulatory energy audit sales » and check its validity.
Search the professional in the official directories, selecting the audit activity adapted to the building.
The auditor must produce an objective analysis and have assurance appropriate to his or her mission.
Ask for a quote describing the scope, visit, deliverables, rate and deadlines.
For old houses, focus on knowledge of traditional materials and possible constraints of the heritage building.
You can consult theFrance Rénov' official directory or official information on certified diagnostic auditors.
CLOVIS immo has gathered contact details of real estate diagnostic offices with an address in Soissons (02200). It is a practical starting point for your research; always check that the chosen professional has the specific authorization required for the audit.
See the directory of SoissonsThe tariff for regulatory energy audit is free. It varies according to the complexity of the housing, its size, its condition and the extent of the investigations required. A single price displayed as valid for all Soissons houses would be misleading: it is better to compare several quotes for an equivalent service.
The seller orders and finances the audit required for the sale. This obligation must be anticipated in order to dispose of the document at the time the purchasers visit the property.
The auditor must carry out at least one on-site visitin the presence of the owner or authorised representative. To facilitate its work, gather the following documents, where available:
Good reflex: request from the estimate the date of the visit, the deadline for submitting the report and the exact nature of the deliverables. The document should not be based solely on a remote estimate.
The audit is based on the energy situation of the building and builds coherent renovation scenarios. In particular, it must describe thermal losses, examine heating, ventilation, building envelope and estimate post-construction performance, cost of interventions and potentially mobilizable aids.
Interventions are organised in a coherent order: insulation, interface processing, ventilation and technical systems, depending on the specifics of the housing. This makes it possible to envisage a gradual construction.
The work is grouped into a global operation to achieve the desired level of efficient renovation within the applicable technical and regulatory limits.
Audit scenarios should, in principle, aim at efficient renovation; of the arrangements are provided for where technical, architectural, heritage or disproportionate costs prevent the achievement of the common law result. The report must then justify the adjustments made.
Estimated costs help the recipient assess the magnitude of a project. They do not replace detailed company specifications, structural expertise or a feasibility study. The aid mentioned is indicative: it depends on the rules applicable and the conditions specific to the applicant.
Identify the energy classification of the building and verify whether the sales audit is required.
Analyze the construction and equipment, then present the work paths.
Return the audit to the proposed acquirer at the first visit and attach it to the sales file.
The purchaser can deepen scenarios, request quotes and prepare financing.
Duration of validity: the regulatory audit is valid five years. If important work is then done, the document may no longer accurately reflect the condition of the building, and the appropriateness of a new audit should be considered.
In the centre of Soissons and the surrounding communes, an old house can present walls of stone or traditional masonry, old floors and architectural details that are not treated like those of a contemporary pavilion. The professional must understand the interactions between insulation, moisture migration, ventilation and preservation of the frame.
For a building within a heritage protection perimeter, certain works envisaged — in particular on facades or carpentry — may be subject to specific authorisations or notices. The audit report does not constitute a planning authorisation. The real feasibility will need to be discussed with the relevant departments before planning the work.
It is essential to distinguish between suggested work to improve energy of the work actually feasible on a given property. For a seller, this transparency helps buyers build a credible project without underestimating the constraints of a house of character.
To complete this reading, discover also our dossier on the DPE of old houses in Soissons.
Yes, when the house falls within the scope of the sales device in metropolitan France. The obligation applies to eligible buildings classified E since 1 January 2025.
The sale of an apartment lot in an ordinary condominium does not automatically involve the regulatory energy audit of sale. The rules of the DCE of housing and those applicable to condominiums remain separate.
It is possible if he has the required certifications or qualifications for each of the two missions. A DPE qualification alone does not confer the right to perform any regulatory audit.
No. The purpose of the audit is to inform the purchaser of possible improvement pathways; the obligation to deliver the document does not mean that the seller must perform all the recommended work before the transaction.
No. The regulatory audit ordered under the obligation to sell is the responsibility of the seller. Renovation aid schemes and their possible audit services meet separate conditions, which must be verified at the time of the project.
It must be presented to the potential purchaser from the first visit to the property concerned and then integrated into the technical diagnostic file attached to the promise of sale or, failing that, to the authentic act.
Each file explains a diagnosis or control that may relate to a sale to Soissons. Obligations differ depending on the length of time the dwelling is old, its facilities, its location and its legal status.
Publication note: files 03-10 are in preparation. The above URLs are forecast; the links will be accessible to visitors after publication of each file with the correct permalink.
Find also thereal estate diagnostics directory of Soissons (02200) to access local coordinates and certification verification resources.
Information verified as at 1 November 2026. The scope of obligations and professional qualifications must be examined according to the building, the transaction and the texts in force at the time of sale.
