In this survey, green value is defined as an increase in value due to a better energy label for an older property compared with another one having a D label, all other things being equal and according to infor-mation available in the notary databases.
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Energy label: how will it impact on the selling price of older houses?
(The lack of data means that the model has not revealed any significant effects.)
Depending on the regions, class A-B houses sold for prices between 6% and 14% higher than class D houses in 2017. It is worth noting that a poor energy label tends to depress prices more than a good label raises them.
The energy label and its impact on price varies greatly according to the period of construction of houses sold in 2017.
By way of example:
- class A, B or C houses built between 1948 and 1969 represent approximately 10% of sales against more than 60% for houses built since 2011;
- for houses built since 2001, the capital gain generated by a better label is in the region of 10% for class A-B against 5% for class C;
- the devaluation generated by an energy-hungry label increases with the age of houses: label F-G houses built between 1850 and 1913 lose 18% of their value on average, against 11% for those built between 1981 and 1991.
* Compared with class D reference houses Reading guide: in the outer suburbs of Greater Paris in 2017, houses with a class C energy label sold for prices 3% higher on average than class D houses.