Coverage
French property evidence by region
These counts describe the source corpus used to build aggregates. Overlapping regional definitions mean their counts should not be added together.
How to use this evidence
Start with a question, not a single headline number. For the regions shown, compare the same property type and time period, note how many records support an aggregate, and treat a regional median as context rather than a valuation. A large source count improves coverage but does not remove differences between communes, condition, land, tenure or unusual sales.
Use the risk inventory as an early screening step. A listed commune risk does not prove that a particular address is exposed, while an absent item does not replace a current official search. Before an offer, verify the precise property through the notaire, Géorisques, planning records, diagnostics and an appropriate survey. This site deliberately leaves unknown facts unknown.
Evidence build: 2026-09-03 · DVF coverage 2021–2025.