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185,000 homes in France with wrong energy ratings to get new ones free
The homes, all built before 1975, have been given incorrectly-low scores which could make them more difficult to sell
Around 185,000 households in France whose property energy performance certificates were carried out incorrectly this year are to have them redone for free. The properties, all built before 1975, have lower ratings than they should, which could prove an issue should the owners wish to sell.
Energy performance certificates - ‘Diagnostics de performance énergétique (DPE)’ in French - are intended to give a rating of the property’s energy efficiency, and help the household improve its energy use.
Yet, 185,000 of the DPEs completed in France since July 1, 2021 have now been found to be incorrect.
These households were incorrectly awarded very low scores. In the case of 80,000 homes built before 1975, these equated to the lowest ratings of F and G. Similarly, 105,000 homes, also built before 1975, were awarded incorrect low scores of D and E.
This is a problem because a low score could also make the home more difficult to sell in future.
DPE certificates have been compulsory for home sales since 2006 (2007 for rented accommodation).
Which homes are affected?
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F and G scores: Owners of homes built before 1975 that were wrongly awarded F and G scores will have their certificates redone for free, and with no action needed on their part.
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D and E scores: Homeowners who received scores of D or E will also be able to have their property’s certificates redone for free, but they will need to request this themselves from a local diagnostician (usually available via estate agencies).
New calculation system cause of errors
The errors have been blamed on a new calculation system, which is no longer based on previous energy bills, but on characteristics of the property, such as insulation condition and heating type, as well as lighting, ventilation, and wind protection.
The government is now awaiting a new calculation system that will fix the errors, which is set to come into force from November 1.
Housing minister Emmanuelle Wargon has advised inspectors to “suspend any energy performance diagnoses for homes built before 1975, except for any urgent and necessary transactions”.
Estate agents are also advised that until November 1, it will be possible to list a home for sale without a DPE rating, pending the new calculation system.
Industry professionals say that the new system has taken time to get right, but that the adjustments on November 1 will seek to address the problems properly.
Thierry Marchand, president of the estate agent diagnostician group la Chambre des Diagnostiqueurs Immobiliers CDI-Fnaim, told Le Figaro: "It has taken time to identify in detail the issues that could compromise the accuracy of the DPE.”
Lionel Jadot, president of the professional group Fidi (Fédération Interprofessionnelle du Diagnostic), added: “We have reported the errors encountered in the field, and then formulated a series of concrete changes to the method [of calculation]. Most of them have been taken up by the authorities.”
The new system will allow for pre-1975 construction norms, such as “thinner wall linings”, explained Stephane Prouzeau, vice-president of Fidi.
Fidi has also called for the checking of 195,000 extra diagnoses carried out since the summer. Any DPEs rated E to G for post-1975 housing should also be re-done, as they are “likely to contain errors” too, Mr Prouzeau said.
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