Reuse open data while preserving its context
Select a dataset, examine its licence, period and coverage, document transformations and provide useful attribution.
Read the practical method →Cadastre ouvert
Search, download and integrate open cadastral plans covering parcels, sections, buildings and map features.
Use this resource for a specific task.
Data and artificial intelligence · France
Open the original resourceWhen it helps
Integrate cadastral boundaries while documenting vintage and source scope.
How to start
Use cadastral data to prepare a map or relate information to parcels. Record format, date and export scope; check coordinate systems before overlaying layers.
Limits to keep in mind
A map or parcel alone does not establish rights, affected people or all project constraints. Verify these with the appropriate sources.
Check before using
Three points to record with the decision.
- 01
Parcel identifier and geographic scope.
- 02
Compatible format and coordinate system.
- 03
Vintage of every overlaid layer.
A method and complementary resources.
Base Adresse Nationale
Official French address register available through national or departmental files, map feeds and geocoding services.
Explore this resource →Géorisques · Données et API
Maps, open databases and APIs on natural, technological and environmental risks affecting local areas.
Explore this resource →Source and verification
Cadastre ouvert — primary source. Link checked . The checklist is editorial guidance; link availability does not guarantee completeness or suitability.
Read the editorial method · Report a correction with its source