Article updated on 07/10/2026
“Green value” refers to the increase in value that a home can gain thanks to good energy performance. A well-insulated home that, for example, needs little energy to heat will generate savings over time: it is therefore more attractive to buyers and, as a result, sells for a higher price.
Key points
- Green value is the extra value a home gains from good energy performance, because it allows energy savings.
- In a 2019 Optimhome survey, 83% of respondents said they were sensitive to a property’s energy performance and 85% believed an energy-efficient home would gain more value.
- The DPE (energy performance certificate) must appear in the sale listing and must be provided to prospective buyers.
- The home’s surroundings also matter: green spaces (91%), air quality (89%) and the town’s sustainable development policy (84%).
Update of 7 October 2026
According to the latest Notaires de France study on the green value of homes (2024 transactions, published in December 2025), an older apartment rated A sells on average for 16% more than a comparable apartment rated D. Conversely, the discount on energy-inefficient houses has widened significantly: between 2021 and 2024, it rose from 10% to 18% for a house rated F and from 17% to 25% for a house rated G, compared with a house rated D.
Source: Notaires de France, study “La valeur verte des logements en France” (December 2025), reported by PAP and LCL, 2026.
How much does a home’s energy performance matter when selling?
In a survey carried out by Optimhome in 2019, 83% of respondents said they were sensitive to a property’s energy performance: proof that it is now an essential element to highlight when selling. Moreover, the DPE (energy performance certificate) must be mentioned in the sale listing and must be provided to prospective buyers.
No fewer than 85% of those surveyed also felt that a home with low energy consumption will inevitably, in the years to come, be worth more than a home that consumes a lot: this shows the growing importance attached to energy.
Can the home’s surroundings be a selling point?
For 91% of respondents, the presence of green spaces in the neighbourhood is an important factor to consider when buying a property, as are air pollution levels (89%) and the town’s sustainable development policy (84%). Today, it is no longer only the ecological dimension of a property that comes into play when buying it: its immediate surroundings matter too.
What buyers are looking for is a sustainable home, in a living environment where ecological issues are a central concern.
Looking to buy a property with a good energy rating?
Also on the blog
- Selling a thermal sieve: what to do with an F or G energy rating?
- Mandatory energy audit 2026: what changes for owners
- Insulating and converting the attic: a lever for capital gain?
- How do windows affect the value of a property in 2026?
- Energy renovation work: which strategy to make it pay off?
Author of the publication
Fabrice DOBROWOLSKI, Director of the Optimhome network
«Benefit from myexpert advice, based on many years of experience in real estate, to ensure the success of your buying or selling project. »
