— Regulatory energy audit · Climate Law
In Brest, an energy audit is mandatory when selling an F or G-rated home since April 2023, extended to E-rated homes since 2025. Expect an average of €400-800 for an apartment, more for a house.
The energy audit goes further than the DPE: it proposes a costed work plan to reach DPE B (ideal target) or D (minimum step). It is attached to the sale agreement and the buyer cannot waive it.
Average estimate for Brest (Bretagne)
Pricing is freely set. Households may receive a MaPrimeRénov' bonus covering 30-100% based on income.
Only professionals qualified OPQIBI (thermal engineers), Qualibat 8731, or certified "audit energetique" inspectors via a Cofrac-accredited body. Otherwise the audit is invalid.
Enter your address to find the current DPE and know if an audit is mandatory for you.
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