No more energy performance diagnosis for pre-1975 housing

Alerted by real estate professionals to certain malfunctions in the calculation of new energy performance diagnostics (DPE), the housing ministry finally decided to suspend it provisionally for housing built before 1975. “Analyzes are underway in order to precisely identify the origin of the anomalies observed and to make the necessary corrections”, underlines the press release of the ministry.

The threat of a rental ban

The method of calculating energy performance diagnostics (DPE) has been changed to 1er July. More comprehensive than the previous one, it no longer only takes into account the energy consumption of housing. But it is also more complex to achieve. The accommodations are classified from A, the best rating, to G, the worst and any change of label can have significant consequences.

→ READ. Energy diagnostics: a bad surprise on the horizon for landlord owners

Except to carry out work, sometimes important, the lessor owners of housing classified G will no longer be able to increase the rents from 2023. From 2025, they can no longer be rented out. Then in 2028, it will be the turn of the F, and the E in 2034.

Towards a doubling of the most poorly classified dwellings

The first results are worrying. “We had anticipated that 40% of housing would change classification with the new DPE. But theoretical calculations predicted that there would not be more energy-hungry homes. This is not at all what we see on the ground, ” underlines Jean-Marc Torrilion, the president of the National Federation of Real Estate (Fnaim). Because according to him, “The number of F and G homes is doubling”. For its part, the ministry recognizes “Abnormal results”.

Building craftsmen are overwhelmed by orders

In total, between 800,000 and one million homes in the private rental stock could be classified as G by this new DPE, while the government was betting instead on 500,000 homes in this category.

The HLM world is also in turmoil. The former Minister of Housing Emmanuelle Cosse, now president of the Social Union for Housing (USH) expressed her concern about the capacity of social landlords to renovate, by 2025, high-class HLMs G, before the ban on renting them comes into effect, if the rules of the new DPE are not changed.

Badly configured software

On the front line, real estate diagnosticians have multiplied the warnings in recent weeks, highlighting ” limits “ of the software establishing this new DPE.

Certain parameters of the calculation engine related to the occupants’ lifestyle have been significantly modified compared to the previous version and “May not correspond to the reality on the ground and substantially degrade the estimate of consumption”, underlines the Interprofessional Federation of Real Estate Diagnosis (Fidi).

Many points need to be reviewed, in particular on ventilation issues which seem to pose a lot of problems. For example, it suffices that a toilet window does not have a shutter for the estimate to bedegraded regardless of the other parameters. “In the absence of very technical data which can only be provided by the trustee, the ratings are systematically downgraded”, explains Stéphane Prouzeau.

The housing ministry is trying to reassure everyone. He will bring together professionals on October 4 to make a complete assessment and promises to present corrective measures.


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