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Recalculation of the DPE: Is your home affected?

Effective January 1, 2027, the conversion factor for electricity used in the calculation of the Energy Performance Diagnosis (EPD) will increase from 1.9 to 1.7. Some dwellings could gain an energy class, or even two in rare cases (small dwellings), and exit from the status of "energy passory" (class F or G). No accommodation will see its label degraded by this change.

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Who is concerned

Especially owners of electrically heated housing or using it for air conditioning and hot water, as well as housing providers classified as E, F or G. Buyers and tenants interested in the DPE label are also concerned.

What to do

If your DPE date is before 2027, check after 1 January 2027 on the website of the Ademe DPE-Audit Observatory if the new calculation improves your ranking: the update is free and without further visit of the diagnosticist. Wait until this verification is done before launching an energy renovation project.

Official sourceService-Public.frNouveau calcul du DPE : votre logement est-il concerné ?Official source ↗

Background

The DPE provides information on the energy and climate performance of a dwelling, with labels from A (very efficient) to G (very energy efficient). This label conditions the rental: since 1 January 2025, G-rated accommodation in metropolitan France can no longer be offered for rent.

Why it's important

A better label can allow owners to continue renting without costly work. All housing uses at least a little electricity, but improvement is more likely when it is also used for heating, air conditioning and sanitary hot water. Tenants also find an indication of future energy costs.

What Changes

From the 1st January 2027, the conversion factor from final to primary energy for electricity will be 1,7 instead of 1,9. DPEs edited from that date automatically take into account the new value; already produced DPEs remain valid for 10 years.

Useful details

  • From 1 January 2027, the factor for converting final energy into primary electricity energy will be 1.7 (compared to 1.9 at present).
  • The label can improve by one class or even two in rare cases (small dwellings); no degradation is foreseen.
  • Since 1 January 2025, G-rated accommodation in metropolitan France can no longer be offered for rent.
  • The rental ban will extend to dwellings classified as F as from 1 January 2028 and to dwellings classified as E as from 1 January 2034.
  • The DPEs published from the 1st January 2027 automatically take into account the new value; the already realized DPEs remain valid for 10 years.
  • The free update of the DPE, without a new visit, is possible on the website of the Ademe DPE-Audit Observatory.

Terms to know

DPE
Energy performance diagnosis: mandatory document that ranks a dwelling from A (very economical) to G (very energy efficient)
passoire énergétique
common term for a class F or G dwelling, very energy-efficient
facteur de conversion
coefficient which converts the final energy consumed (electricity) into primary energy for the calculation of the DPE

Check the conditions before taking action: Vitalpes explains the context and returns to the official source, without replacing a personalized advice.

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