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What does this property’s energy rating cost?
The letter of the energy performance diagnosis (DPE) states a consumption, hence a bill, and obligations for letting or reselling. Here are both, for the property’s floor area.
What the letter says
- Consumption of the letter
- Estimated energy bill, per year
- Range of the letter
- Per month
- Letting
- Energy audit at sale
Indicative estimate: typical consumption of the letter, at an average price of 11 cents per kWh of primary energy, standing charges and appliances excluded. The estimate printed on the property’s DPE prevails. Nothing is sent to a server, everything is computed in your browser.
Reading a DPE letter
The letter states a primary energy consumption, per m² and per year: under 70 kWh for A, over 420 for G. Greenhouse gas emissions can downgrade it, the letter kept being the worse of the two; under 40 m², the thresholds have been raised since July 2024.
The estimated bill applies to that consumption an average price of 11 cents per kWh of primary energy, roughly valid for electricity as for gas or heating oil. The property’s DPE carries its own estimate, as a range: that one prevails.
Since 1 January 2026, electricity counts for 1.9 instead of 2.3 in the calculation of the letter, and for 1.7 from 1 January 2027: a home heated by electricity can gain a letter without works. The date of the DPE is therefore worth checking before committing.
Example: a 100 m² house rated F consumes 330 to 420 kWh per m² per year; its energy bill comes out at around €4,130 a year. It can no longer be let from 1 January 2028, and its sale comes with an energy audit that prices the works needed to gain letters.
Frequently asked questions
Can a property rated F or G still be let?
A home rated G can no longer be let since 1 January 2025, neither under a new lease nor a renewal; a home rated F will be banned from 1 January 2028, a home rated E from 2034. The rent of F and G homes has been frozen since August 2022.
What is the energy audit at sale?
To sell a house or a whole building rated E, F or G, the seller provides an energy audit on top of the DPE: it sets out stages of works to gain letters, with their cost. An apartment in a co-ownership building is not concerned.
Does a poor rating lower the price?
Often: notaries observe a discount on properties rated F and G against comparable, better-rated ones. The cost of the works, priced by the audit or by contractors before the offer, then becomes an argument in the negotiation.
Can a property’s DPE change without works?
Yes, for a home heated by electricity: the electricity coefficient is falling, from 2.3 to 1.9 in 2026 and then to 1.7 in 2027, which can gain it a letter. A DPE drawn up before these changes is worth re-reading before committing.
