How much does an energy audit cost? Prices and grants 2026

Typical price ranges

There is no regulated tariff: each consultancy sets its own prices. As an indication, the ranges generally observed on the French market are as follows.

• Detached house: roughly €500 to €1,500 incl. VAT depending on size and complexity
• Apartment: usually slightly less than a house, as the modelled volume is smaller
• Apartment building or condominium: from €3,000 to over €10,000 depending on the building
• Regulatory audit for selling an F or G rated home: similar to a standard audit, plus the standardised framework

What drives the price

Two houses of the same size can receive different quotes. The main cost factors are the time spent on site and the time spent modelling.

• Floor area and number of storeys
• Number of systems to study: heating, hot water, ventilation, renewables
• Available documents: plans, energy bills, previous diagnostics
• Number of renovation scenarios and level of detail required in the report

How French grants reduce the final cost

The initial energy audit is the first step towards the main French renovation grants. It is also what prices the genuinely useful work before you commit to anything.

• MaPrimeRénov': an initial audit is mandatory for major works and ambitious renovation projects
• Éco-prêt à taux zéro (zero-interest eco loan): an audit or technical file is required for larger applications
• Energy savings certificates (CEE): some offers fund part of the study
• Neo Étude presents the existing schemes and points you to the competent bodies (France Rénov', your bank, ADEME)

A free, personalised quote

Every property is different: a reliable price can only be given after a first discussion. Neo Étude offers a free meeting, by video call or on site depending on your location in Western France, to pre-assess your home and your needs before any quote.