850,000 dwellings will no longer be considered thermal colanders with this new DPE calculation

The government has confirmed a modification of the method of calculating the energy performance diagnosis (DPE), an indicator that has become central to the real estate life of the French. Moreover, Result: approximately 850,000 dwellings should automatically get out of the F and G classes, those of “thermal colanders”.

A coefficient too penalizing for electricity – 850,000 dwellings will no longer

The DPE assesses the energy performance of accommodation based on two criteria: energy consumption. For example, greenhouse gas emissions. Furthermore, For heated to electricity dwellings. For example, the calculation was up to now on a coefficient of final energy/primary energy conversion fixed at 2.3. In addition, Clearly, for each kilowatt hour consumed, the system considered that it was necessary to produce 2.3, penalizing the heated housing with electric.

However. In addition, this coefficient no longer reflected the reality of the French energy mix, very largely 850,000 dwellings will no longer decarbonized thanks to nuclear and renewables. Meanwhile, By lowering this coefficient to 1.9 from January 1ᵉʳ 2026. Moreover, the government corrects an anomaly that many professionals in the sector denounced since the entry into force of the new version of the DPE in 2021.

A change of coefficient not trivial – 850,000 dwellings will no longer

It will have a mechanical effect on the calculations of the DPE. without the owners having to initiate the slightest job. A study by the Casam specialist thus estimates that more than 7 million main residences will see their DPE improve. of which 850,000 will be released from the very poorly rated classes F or G. In almost 91 % of cases. these are electricity heated housing, which will thus switch to more favorable classes, such as E or D.

The legislative calendar is already on the way: a decree should be published in September 2025 to formalize this development. 850,000 dwellings will no longer which will apply to all DPEs established or revised from January 2026.

In recent years, the DPE has become a central tool for regulating French real estate stock. The housing classified F. G are gradually subject to rental prohibitions, within the framework of the fight against thermal customers wanted by the climate and resilience law. Some owners thus ended up with theoretically unsold. unlivable accommodation, only due to a calculation deemed too severe for electricity.

The new calculation will therefore rehabilitate tens of thousands of goods. especially in rural areas or small areas, often heated by electric convectors. For these dwellings. the revaluation of the DPE can make all the difference: maintenance in the rental park, access to sale, or simple peace of mind for the occupants.

However, it is not a general passage since all the F or G accommodation will not be reclassified. Those who have significant losses 850,000 dwellings will no longer (poor insulation, thermal bridges, simple glazing, etc.) will remain badly rated. The energy renovation effort therefore remains topical for an important part of the park.

But for well -insulated accommodation. the only wrong of which was their heating mode, this modification is a measure of equity. It aligns the DPE on the ecological ambitions of France, without unduly brought the cost to certain households.

850. 000 dwellings will no longer

Towards a fairer DPE… and more credible

This evolution comes when the very credibility of the DPE had been called into question in recent months, especially for small areas, sometimes upgraded or underclassered due to an unatted mode of calculation. The government thus intends to restore confidence in this tool. which now conditions access to certain aids, rental or real estate sales.

With this new DPE version 2026, the signal is clear: electricity is no longer the enemy of sustainable housing. 850,000 dwellings will no longer And the energy transition cannot be done without taking into account the technical, economic and ecological realities on the ground. A step in the right direction, hailed as much by professionals as by the individuals concerned.

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