Recalculation of the DPE: is your home affected?

From 1^er January 2027, one of the values used for the calculation Energy Performance Diagnostics (EPD) changes: for electricity, the value of the conversion factor from final energy to primary energy will be 1.7 (compared to 1.9 currently).

Which dwellings are affected by this development of the DPE?

All dwellings use at least some electricity (for lighting, in particular). Part of the dwellings also use this energy source to:

• heating;
• air conditioning;
• the production of domestic hot water.

In these dwellings that use electricity for many uses, it is possible that the energy label of the DPE improves by one class, or even by 2 classes in rare cases (small dwellings), following the evolution of the 1^er January 2027. Some dwellings may therefore be removed from the status of « energy sieve » (Class F or G of the DPE).

The improvement of the label of the DPE will not be systematic; in any case, no housing will see its label degraded because of the change of the 1^er January 2027.

What are the consequences for homeowners?

The energy label obtained at the DPE has consequences on the leasing of real estate. Indeed, since the 1st^er January 2025, dwellings located in metropolitan France whose energy performance diagnosis corresponds to the letter G can no longer be offered for rent. This ban on placing the most energy-intensive properties on the rental market will extend to:

• to dwellings classified F from 1^er January 2028;
• to dwellings classified E from 1^er January 2034.

To learn more about the evolution of the calculation of the DPE, and in particular about the consequences that this can have on your energy renovation project, you can consult frequently asked questions on the portal for energy and environmental regulations for buildings.