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Local Address Database of the Pays de la Loire RegionBase Adresse Locale de la Région des Pays de la Loire

Base Adresse Locale de la Région des Pays de la LoireLocal Address Database of the Pays de la Loire Region

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This API aggregates Local Address Databases (Bases Adresses Locales) covering the Pays de la Loire region in France. It provides address-level geographic data compiled from municipal and local sources across the region, supporting applications that require standardized, verified street and location addressing information. The dataset is published via the Pays de la Loire regional open-data platform and is freely accessible without authentication.Agrégation des Bases Adresses Locales sur la Région des Pays de la Loire.

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Data schema (25 fields)

Filterable via the API (24)

commune_nomcommune_inseevoie_nomnumerosuffixelieudit_complement_nomcommune_deleguee_inseecommune_deleguee_nomid_balsourceuid_adressecle_interoppositionxylonglatdate_der_majdate_creationcad_parcellescertification_communelien1lien2lien3

Click a field to see example values.

Field	Type	Description
commune_nomCommune	text	Name of the municipality.Nom de la commune
commune_inseeCode INSEE	text	INSEE code of the municipality.Code INSEE de la commune
voie_nomNom de la voie	text	Full name of the street.Nom complet de la voie
numeroNuméro	int	House or building number.Numéro
suffixe	text	Suffix supplementing and specifying the address number.Informations qui complètent et précisent les numéros d’adresses
lieudit_complement_nomLieu-dit / Complément nom	text	Name of the historic locality or additional place name.Nom du lieu-dit historique ou complémentaire
commune_deleguee_inseeCode INSEE commune déléguée	text	INSEE code of the delegated municipality.Code INSEE de la commune déléguée
commune_deleguee_nomNom commune déléguée	text	Name of the delegated municipality.Nom de la commune déléguée
id_balIdentifiant BAL	text	Unique identifier of the address in the Local Address Database.Identifiant unique de l’adresse dans la Base Adresse Locale
source	text	Organization that created or published this address.Organisme ayant créé ou diffusé cette adresse
uid_adresseIdentifiant BAN	text	National unique address identifier (BAN identifier).Identifiant unique national d’adresse (identifiant BAN)
cle_interopClé d'intéropérabilité	text	National interoperability key for the address.Clé nationale d’interopérabilité
position	text	Type of point describing the address location.Décrit la position d’une adresse (liste de valeurs)
xCoordonnée X	double	X coordinate in Lambert 93 projection.Coordonnée X Lambert 93
yCoordonnée Y	double	Y coordinate in Lambert 93 projection.Coordonnée Y Lambert 93
longLongitude	double	Longitude in WGS84 coordinate system.Longitude WGS84
latLatitude	double	Latitude in WGS84 coordinate system.Latitude WGS84
date_der_majDate de mise à jour	date	Date the address data was last updated.Date de la dernière mise à jour de la donnée
date_creationDate de création	date	Date the address was created.Date de création de l’adresse
cad_parcellesParcelles	text	Pipe-separated list of cadastral parcels served by this address.Liste des parcelles, séparées par un pipe (\|), desservies ou représentées par cette adresse
geom	geo_point_2d	Geographic point location of the address.Geographic point location of the address.
certification_communeCertification commune	int	Flag indicating whether the address was certified by the municipality.Flag indicating whether the address was certified by the municipality.
lien1	text	Related external link for the address.Related external link for the address.
lien2	text	Related external link for the address.Related external link for the address.
lien3	text	Related external link for the address.Related external link for the address.

Schema captured from opendatasoft 3 days ago.

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Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (5 records)

Record 1x: 356174.453 · y: 6689601.769

{
  "x": 356174.453,
  "y": 6689601.769,
  "lat": 47.21761880299999,
  "geom": {
    "lat": 47.217618799985964,
    "lon": -1.5456368689325124
  },
  "long": -1.5456368669999847,
  "lien1": null,
  "lien2": null,
  "lien3": null,
  "id_bal": null,
  "numero": 20,
  "source": "Nantes Métropole",
  "suffixe": null,
  "position": "parcelle",
  "voie_nom": "Rue de Richebourg",
  "cle_interop": null,
  "commune_nom": "Nantes",
  "uid_adresse": null,
  "date_der_maj": "2022-11-29",
  "cad_parcelles": null,
  "commune_insee": "44109",
  "date_creation": null,
  "commune_deleguee_nom": null,
  "certification_commune": 1,
  "commune_deleguee_insee": null,
  "lieudit_complement_nom": null
}

Record 2x: 432035.5 · y: 6677893.42

{
  "x": 432035.5,
  "y": 6677893.42,
  "lat": 47.1472875,
  "geom": {
    "lat": 47.14728753682538,
    "lon": -0.5372996830753792
  },
  "long": -0.5372997,
  "lien1": null,
  "lien2": null,
  "lien3": null,
  "id_bal": "BALPDLP000019294",
  "numero": 16,
  "source": "Région des Pays de la Loire",
  "suffixe": null,
  "position": "entrée",
  "voie_nom": "Place Saint-Jean",
  "cle_interop": "49373_1500_00016",
  "commune_nom": "Lys-Haut-Layon",
  "uid_adresse": null,
  "date_der_maj": "2021-08-23",
  "cad_parcelles": "49373000AM0140",
  "commune_insee": "49373",
  "date_creation": "2021-03-03",
  "commune_deleguee_nom": "Vihiers",
  "certification_commune": 1,
  "commune_deleguee_insee": "49373",
  "lieudit_complement_nom": null
}

Record 3x: 300810.4347871427 · y: 6697449.537421263

{
  "x": 300810.4347871427,
  "y": 6697449.537421263,
  "lat": 47.25713477285933,
  "geom": {
    "lat": 47.257134772859295,
    "lon": -2.2824936235021176
  },
  "long": -2.2824936235021145,
  "lien1": null,
  "lien2": null,
  "lien3": null,
  "id_bal": null,
  "numero": 86,
  "source": "CARENE",
  "suffixe": null,
  "position": "entrée",
  "voie_nom": "Route de la Villes-Mollé",
  "cle_interop": "44184_6021_00086",
  "commune_nom": "Saint-Nazaire",
  "uid_adresse": null,
  "date_der_maj": "2024-09-18",
  "cad_parcelles": "440184000EP0673",
  "commune_insee": "44184",
  "date_creation": null,
  "commune_deleguee_nom": null,
  "certification_commune": 1,
  "commune_deleguee_insee": null,
  "lieudit_complement_nom": null
}

Record 4x: 416783.77 · y: 6707014.72

{
  "x": 416783.77,
  "y": 6707014.72,
  "lat": 47.402833,
  "geom": {
    "lat": 47.402832978560326,
    "lon": -0.7566129380373298
  },
  "long": -0.7566129,
  "lien1": null,
  "lien2": null,
  "lien3": null,
  "id_bal": "BALPDLP000579131",
  "numero": 3,
  "source": "Région des Pays de la Loire",
  "suffixe": null,
  "position": "entrée",
  "voie_nom": "Rue Bernard Cretin Guesdon",
  "cle_interop": "49283_0051_00003",
  "commune_nom": "Saint-Georges-sur-Loire",
  "uid_adresse": null,
  "date_der_maj": "2022-09-26",
  "cad_parcelles": "49283000AH0162",
  "commune_insee": "49283",
  "date_creation": "2022-09-26",
  "commune_deleguee_nom": null,
  "certification_commune": 1,
  "commune_deleguee_insee": null,
  "lieudit_complement_nom": null
}

Record 5x: 364667.6 · y: 6681808.48

{
  "x": 364667.6,
  "y": 6681808.48,
  "lat": 47.1519128,
  "geom": {
    "lat": 47.151912844361654,
    "lon": -1.4278179527323613
  },
  "long": -1.4278179,
  "lien1": null,
  "lien2": null,
  "lien3": null,
  "id_bal": "BALPDLP000013515",
  "numero": 11,
  "source": "Région des Pays de la Loire",
  "suffixe": null,
  "position": "entrée",
  "voie_nom": "Rue du port au duc",
  "cle_interop": "44159_0030_00011",
  "commune_nom": "Saint-Fiacre-sur-Maine",
  "uid_adresse": null,
  "date_der_maj": "2021-02-22",
  "cad_parcelles": "441590000A0914",
  "commune_insee": "44159",
  "date_creation": "2021-02-22",
  "commune_deleguee_nom": null,
  "certification_commune": 1,
  "commune_deleguee_insee": null,
  "lieudit_complement_nom": null
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/base-adresse-locale-region-pays-de-la-loire

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/base-adresse-locale-region-pays-de-la-loire/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

5 000 req/day

per ipmeasured

observed 3 days ago

Dataset

Volume & freshness

Records

1.6M

1563022

Update cadence

Weekly

declared upstream

Last upstream update

4 days ago

2026-10-19

License

No license declared upstream.

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Source: opendatasoft

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Local Address Database of the Pays de la Loire RegionBase Adresse Locale de la Région des Pays de la Loire

Trust score

Data schema (25 fields)

Query the data

Sample data (5 records)

Verification Status

Using the API

Configuration

License

Query examples

Rate limits

Dataset

Volume & freshness

License

Machine-readable & source