New mandatory energy audit: everything you need to know to carry out your sales project
From 1 January 2026, a major reform of the Energy Performance Diagnosis (DPE) will profoundly change the energy classification of millions of homes throughout France. This major step forward, announced by government decree, will be a game-changer for property owners and investors.
What does the 2026 DPE reform consist of? 🔍
As a result, electric homes will be better classified in terms of energy, as their consumption is now assessed more realistically and fairly with regard to gas, oil or wood.
In concrete terms:
- 7 million homes in France will increase by an energy class.
- 91% of the beneficiaries will be properties heated by electricity.
In the Pays de Gex, this reform will therefore have a concrete impact, particularly for apartments and small areas located in Ferney-Voltaire, Gex, Saint-Genis-Pouilly or Divonne-les-Bains, where electricity remains the main source of heating.
✅ Who are the main beneficiaries?
The big winners of this reform are:
- Homes heated by electricity : nearly 1 in 2 will gain an energy class.
- Energy sieves (F and G): around 850,000 homes will graduate from this status by 2026.
- Small areas (< 40 m²): 41% of them will see their DPE improve.
In the municipalities of the Pays de Gex, these changes concern a large part of the housing stock — in particular studios and T2 intended for rental.
Homes heated by gas, oil or wood will make little progress, because their primary energy coefficient is not affected by the reform.
- Rental properties, until now threatened by the gradual ban on thermal sieves (Climate and Resilience Law), are finding new room for manoeuvre.
- Sellers will see their properties better valued thanks to a more favourable DPE.
- Buyers will be able to project themselves more serenely in homes considered less energy-intensive, without having to plan for major renovation work.
Clearly, this reform should revitalize the real estate market in the Pays de Gex, by upgrading a significant part of the stock heated by electricity.
📍 Why call on IFIC Immobilier ?
Located in Ferney-Voltaire, in the heart of the Pays de Gex, we support owners, landlords and buyers in the enhancement of their assets. Our teams closely monitor regulatory changes such as the DPE 2026 in order to advise you as best as possible.
👉 Are you a homeowner in the Pays de Gex and your home is heated by electricity?
This reform can change your prospects for renting or selling.
Contact IFIC Immobilier in Ferney-Voltaire now to assess the impact of the DPE reform on your property.
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Assistante de direction
Posted on 29/10/2025 by
Marie MASSON
