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 →Base Adresse Nationale
Official French address register available through national or departmental files, map feeds and geocoding services.
Use this resource for a specific task.
Data and artificial intelligence · France
Open the original resourceWhen it helps
Use for address matching or normalisation; review ambiguous matches.
How to start
Choose an export matching scope and expected schema. The page distinguishes historical CSVs from files containing BAN identifiers. Sample the data before replacing your address reference.
Limits to keep in mind
An address match proves neither occupancy nor a person’s identity. Keep ambiguous matches for review rather than forcing a result.
Check before using
Three points to record with the decision.
- 01
Schema and identifiers in the chosen export.
- 02
Coordinates, reference system and ambiguous-address handling.
- 03
File date and update rule for your copy.
A method and complementary resources.
Cadastre ouvert
Search, download and integrate open cadastral plans covering parcels, sections, buildings and map features.
Explore this resource →Référentiel National des Bâtiments
Open register assigning a unique persistent identifier to buildings, with a map, exports, APIs and vector tiles.
Explore this resource →Source and verification
Base Adresse Nationale — 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