Buying in a French city

France is not a single property market. Two neighbouring towns can show very different prices per sqm, flood exposure or EPC ratings. Walking into a deal without that picture is the fastest way to overpay or inherit refurbishment work nobody priced in.

BienCheck takes a simple stance: before you chase a listing, understand the town. What's the 12-month price trend? Are there flood zones, clay shrinkage, radon? How many local homes are stuck on EPC F or G? These questions often flip the decision.

Every town has its own page with four angles: property prices (with the latest recorded sales), risks (flooding, clay shrinkage, seismic, radon, industrial sites), EPC (A to G distribution and average consumption) and overall market. You can jump between them in one click.

Compare two or three shortlisted towns side by side: price per sqm, share of well-rated homes, risk exposure. That comparison usually breaks a deadlock. Then, once you have a specific property, run the BienCheck analysis on that exact address rather than the town average.

France has roughly 34,875 communes (towns), 101 départements and 18 régions (13 in mainland France, 5 overseas). Every commune has a unique INSEE code that ties the official databases together: DVF for sales, ADEME for EPC, Géorisques for risks. That code is what makes consistent town-by-town analysis possible.

A commune can be tiny (a few dozen residents) or huge (Paris, Marseille, Lyon). Big cities are split into districts and neighbourhoods, which BienCheck also covers. For a broad search start at département or région level; for a focused one, start at the city or neighbourhood.

For each city we cross three families of official sources: DVF (real-estate sales published by the French tax authority), ADEME (national EPC database since 2021) and Géorisques (natural and industrial risks published by the State and BRGM).

Price per sqm is built from real sales recorded over the last 12 months, split between houses and flats. The trend compares the current rolling median to last year's. Risks are summarised by exposed area (% of the town's surface). EPC is aggregated by rating class (A to G).

We don't fabricate data. When a town is too small for a meaningful DVF sample, we say so and fall back to the département median. Same rule for EPC: fewer than 30 diagnostics over the period and we hide the median rather than mislead you.

BienCheck is an independent buyer-side service. We don't work for agencies, sellers or developers. Our scores aren't financial advice or guarantees: they are an objective read based on public, verifiable, sourced and dated data shown in every report.

Every local page reflects the latest refresh of the official sources (DVF quarterly, ADEME continuous, Géorisques yearly). When the data moves, the page moves. When data is missing, the page says so rather than inventing a number.