Public brownfield sites over 1 hectare in Île-de-FranceFriches franciliennes publiques de plus de 1 hectare

Friches franciliennes publiques de plus de 1 hectarePublic brownfield sites over 1 hectare in Île-de-France

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This dataset, maintained by L'Institut Paris Region, lists public brownfield sites larger than one hectare across the Île-de-France region. Since 2020, the institute has compiled an annual inventory of sites that could be considered "friches" (derelict or underused land) by at least one local stakeholder, such as public authorities, the current owner, a potential buyer, an occupant, a land management operator, the press, or a research body. The dataset supports urban planning, land-use analysis, and the identification of redevelopment opportunities within the region.Depuis 2020, L'Institut Paris Region recense chaque année en Île-de-France, les « sites qui pourraient être considérés comme des friches par au moins un acteur du territoire » (pouvoirs publics, propriétaire actuel, acheteur potentiel, occupant, opérateur foncier, presse, organisme d’études, etc....

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How is this computed?

fair

Weighted across five axes. Tap a ring for what it measures.

Data schema (18 fields)

Filterable via the API (16)

objectidid_uniquesurfacesurfhaclasssurfdepprincinseeprinccomprincsirennomepciconstruittyponumtypotxtshape_lengst_area_shapest_length_shape

Click a field to see example values.

Fill	Field	Type	Description
100%	objectid	int	Internal record identifier.Internal record identifier.
100%	id_uniqueId unique	text	Unique, stable identifier for the brownfield site, prefixed by data source.Identifiant unique permettant de repérer et qualifier chacune des friches. Cet indicateur est stable d'un millésime à l'autre de la base. Le préfixe de l'identifiant permet d'indiquer la source ayant permis de qualifier le site en friche : Marathon, Mos, AMI de la Région
100%	surface	double	Area of the brownfield site in square meters.Surface de la friche en m²
100%	surfha	double	Area of the brownfield site in hectares.Surface de la friche en hectares
100%	classsurf	text	Size class category of the brownfield site's area.Classe de surface de la friche
100%	depprinc	int	Department in which the brownfield site is located.Département dans lequel est situé la friche
100%	inseeprinc	int	INSEE code of the municipality containing most of the site.Code Insee de la commune dans laquelle est située la plus grande partie de la friche
100%	comprinc	text	Name of the municipality containing most of the site.Commune dans laquelle est située la plus grande partie de la friche
100%	sirenSIREN (company)	int	SIREN code of the intermunicipal body containing most of the site.Code SIREN de l'intercommunalité dans laquelle est située la plus grande partie de la friche
100%	nomepci	text	Name of the intermunicipal body containing most of the site.Nom de l'intercommunalité dans laquelle est située la plus grande partie de la friche
—	construit	text	Indicates whether at least one building stands on the site.Présence d'au moins un bâtiment sur la friche.
—	typonum	int	Numeric code for the brownfield site's typology category.Typologie de la friche, indicateur numérique : 11 Industrie 12 Logistique 13 Bureaux / tertiaire 14 Commerces 15 Autres friches d'activités 20 Habitat 30 Transport 40 Equipements 50 Agriculture 60 Loisirs 70 Carrières 81 Espaces ouverts en milieu urbain 82 Espaces ouverts hors milieu urbain 91 Telecom 92 Energie 93 Eau 94 Déchets
—	typotxt	text	Text label for the brownfield site's typology category.Typologie de la friche, indicateur textuel : 11 Industrie 12 Logistique 13 Bureaux / tertiaire 14 Commerces 15 Autres friches d'activités 20 Habitat 30 Transport 40 Equipements 50 Agriculture 60 Loisirs 70 Carrières 81 Espaces ouverts en milieu urbain 82 Espaces ouverts hors milieu urbain 91 Telecom 92 Energie 93 Eau 94 Déchets
—	shape_lengShape leng	double	Perimeter length of the site's geometry.Perimeter length of the site's geometry.
—	st_area_shapeSt area shape	double	Computed area of the site's geometry.Computed area of the site's geometry.
—	st_length_shapeSt length shape	double	Computed perimeter length of the site's geometry.Computed perimeter length of the site's geometry.
—	geo_shapeShape	geo_shape	Geographic polygon outline of the brownfield site.Geographic polygon outline of the brownfield site.
—	geo_point_2dCoordinates	geo_point_2d	Geographic coordinates (latitude and longitude) of the site.Geographic coordinates (latitude and longitude) of the site.

Schema captured from opendatasoft 3 days ago.

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Sample data (5 records)

Record 1siren: 200058790 · surfha: 3.90364003

{
  "siren": 200058790,
  "surfha": 3.90364003,
  "nomepci": "Grand Paris - Grand Est (T9)",
  "surface": 39036.3984375,
  "typonum": 15,
  "typotxt": "Autres friches d'activités",
  "comprinc": "Noisy-le-Grand",
  "depprinc": 93,
  "objectid": 63,
  "classsurf": "3. de 1 à 5 ha",
  "construit": "Oui",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            2.525956307893613,
            48.84959059139595
          ],
          [
            2.525557918777911,
            48.84946292442831
          ],
          [
            2.525177171328427,
            48.84997170107768
          ],
          [
            2.524645894263107,
            48.850682859868755
          ],
          [
            2.5242001114690877,
            48.851282657696586
          ],
          [
            2.5239631771835227,
            48.85159027931458
          ],
          [
            2.5241287051305106,
            48.851640491464146
          ],
          [
            2.5242657276797766,
            48.851678359006584
          ],
          [
            2.524299848511773,
            48.85168766794667
          ],
          [
            2.524412544868933,
            48.85171815393836
          ],
          [
            2.524523668441947,
            48.85174179857991
          ],
          [
            2.5245844677666573,
            48.85175463094751
          ],
          [
            2.5246522039401724,
            48.851768929788435
          ],
          [
            2.5247957239168195,
            48.85179674990928
          ],
          [
            2.524896014821319,
            48.85181279671399
          ],
          [
            2.525041555997505,
            48.85182821365733
          ],
          [
            2.5250996702381374,
            48.851836628331725
          ],
          [
            2.5251481811861733,
            48.85183709066537
          ],
          [
            2.525238121772944,
            48.851837447571604
          ],
          [
            2.5254093084674047,
            48.851835158870145
          ],
          [
            2.5254578570898096,
            48.85183148425911
          ],
          [
            2.5255568252979654,
            48.85182818943124
          ],
          [
            2.5256476154409704,
            48.85182504196849
          ],
          [
            2.525710595940034,
            48.85182286341409
          ],
          [
            2.5257825950423505,
            48.85181802254753
          ],
          [
            2.525854594131392,
            48.85181318163763
          ],
          [
            2.5258983583997408,
            48.85181110670263
          ],
          [
            2.5260021100221426,
            48.85180630158042
          ],
          [
            2.526168428349764,
            48.8517998555388
          ],
          [
            2.526445453852629,
            48.851788001755864
          ],
          [
            2.527300491633479,
            48.85001230514555
          ],
          [
            2.527010396686962,
            48.84993372531301
          ],
          [
            2.5268024878986126,
            48.84986878010763
          ],
          [
            2.526586452549343,
            48.84979840632515
          ],
          [
            2.5263737738100334,
            48.84973362135752
          ],
          [
            2.525956307893613,
            48.84959059139595
          ]
        ]
      ]
    },
    "properties": {}
  },
  "id_unique": "Friche_infra_54",
  "inseeprinc": 93051,
  "shape_leng": 799.94058459,
  "geo_point_2d": {
    "lat": 48.85079128264993,
    "lon": 2.5257241945771085
  },
  "st_area_shape": 39036.37565,
  "st_length_shape": 799.9405845867888
}

Record 2siren: 200058485 · surfha: 29.79159927

{
  "siren": 200058485,
  "surfha": 29.79159927,
  "nomepci": "Val Parisis",
  "surface": 297916,
  "typonum": 82,
  "typotxt": "Espaces ouverts hors milieu urbain",
  "comprinc": "Taverny",
  "depprinc": 95,
  "objectid": 167,
  "classsurf": "5. de 10 à 50 ha",
  "construit": "Oui",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            2.218920033842573,
            49.03184278581845
          ],
          [
            2.2186410839249775,
            49.0355496972781
          ],
          [
            2.219188255464094,
            49.03626009756984
          ],
          [
            2.2204435285006143,
            49.03645000517049
          ],
          [
            2.2223425326715414,
            49.035873246874125
          ],
          [
            2.2245634021737235,
            49.03476894712142
          ],
          [
            2.225239319044158,
            49.034986995578244
          ],
          [
            2.2258186754660425,
            49.03578180884123
          ],
          [
            2.2272348820077554,
            49.03607018998191
          ],
          [
            2.2306788389677554,
            49.03605612229293
          ],
          [
            2.2308504993927203,
            49.035373853413084
          ],
          [
            2.2317624507889953,
            49.034424287825786
          ],
          [
            2.2313118395723044,
            49.03378420063328
          ],
          [
            2.2304213462621973,
            49.03317927510167
          ],
          [
            2.2286940034586054,
            49.03294715032622
          ],
          [
            2.2272885261847093,
            49.03303155964907
          ],
          [
            2.2266769818246503,
            49.03294011667108
          ],
          [
            2.2259688795956696,
            49.03343250039686
          ],
          [
            2.226183456006001,
            49.03361538468538
          ],
          [
            2.22626928631018,
            49.03403742276754
          ],
          [
            2.225915235128842,
            49.03431877984776
          ],
          [
            2.2258615909321904,
            49.034691575221245
          ],
          [
            2.225292962729509,
            49.03495182714007
          ],
          [
            2.2245848593718107,
            49.034705642422495
          ],
          [
            2.2242629939484155,
            49.03419216985337
          ],
          [
            2.2233081285772203,
            49.03374199644485
          ],
          [
            2.223104280268049,
            49.032848673602174
          ],
          [
            2.2220850410151756,
            49.032222633982485
          ],
          [
            2.2219133799032553,
            49.03152624360437
          ],
          [
            2.221570057018796,
            49.03134335201908
          ],
          [
            2.220861953542019,
            49.03146293550476
          ],
          [
            2.220078747760696,
            49.03098460039484
          ],
          [
            2.220046561844521,
            49.03100570373985
          ],
          [
            2.218920033842573,
            49.03184278581845
          ]
        ]
      ]
    },
    "properties": {}
  },
  "id_unique": "Marathon1_282",
  "inseeprinc": 95607,
  "shape_leng": 3177.31381288,
  "geo_point_2d": {
    "lat": 49.0342078334622,
    "lon": 2.224230342214779
  },
  "st_area_shape": 297915.786726665,
  "st_length_shape": 3177.3138128923074
}

Record 3siren: 200058006 · surfha: 1.72150004

{
  "siren": 200058006,
  "surfha": 1.72150004,
  "nomepci": "Grand Paris Sud Est Avenir (T11)",
  "surface": 17215,
  "typonum": 60,
  "typotxt": "Loisirs",
  "comprinc": "Créteil",
  "depprinc": 94,
  "objectid": 206,
  "classsurf": "3. de 1 à 5 ha",
  "construit": "Non",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            2.4327066597536415,
            48.772158160314476
          ],
          [
            2.4345555286914373,
            48.77264286554535
          ],
          [
            2.4351697421989615,
            48.77177718189768
          ],
          [
            2.4351490949655834,
            48.771689035470594
          ],
          [
            2.433376188929337,
            48.771173763045645
          ],
          [
            2.4327066597536415,
            48.772158160314476
          ]
        ]
      ]
    },
    "properties": {}
  },
  "id_unique": "Marathon4_113",
  "inseeprinc": 94028,
  "shape_leng": 524.74475402,
  "geo_point_2d": {
    "lat": 48.77191825008907,
    "lon": 2.4339561095871978
  },
  "st_area_shape": 17215.015031725,
  "st_length_shape": 524.7447540238189
}

Record 4siren: 200056232 · surfha: 1.11053002

{
  "siren": 200056232,
  "surfha": 1.11053002,
  "nomepci": "Communauté Paris Saclay",
  "surface": 11105.29980469,
  "typonum": 12,
  "typotxt": "Logistique",
  "comprinc": "Les Ulis",
  "depprinc": 91,
  "objectid": 92,
  "classsurf": "3. de 1 à 5 ha",
  "construit": "Non",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            2.1928210275089404,
            48.67412226667436
          ],
          [
            2.1920040877092664,
            48.673431959285345
          ],
          [
            2.1907623994768,
            48.67406105468049
          ],
          [
            2.1915572962755183,
            48.674736657711755
          ],
          [
            2.1925006034800005,
            48.67427804560481
          ],
          [
            2.1928210275089404,
            48.67412226667436
          ]
        ]
      ]
    },
    "properties": {}
  },
  "id_unique": "Friches_Evolumos_Activites_622",
  "inseeprinc": 91692,
  "shape_leng": 423.27378243,
  "geo_point_2d": {
    "lat": 48.67408689174799,
    "lon": 2.191788832866272
  },
  "st_area_shape": 11105.348320555,
  "st_length_shape": 423.2737824343848
}

Record 5siren: 200058782 · surfha: 2.57189012

{
  "siren": 200058782,
  "surfha": 2.57189012,
  "nomepci": "Saint-Quentin-en-Yvelines",
  "surface": 25718.90039063,
  "typonum": 50,
  "typotxt": "Agriculture",
  "comprinc": "Magny-les-Hameaux",
  "depprinc": 78,
  "objectid": 174,
  "classsurf": "3. de 1 à 5 ha",
  "construit": "Non",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            2.0765489372464283,
            48.72322619331954
          ],
          [
            2.077654007149955,
            48.72297139259157
          ],
          [
            2.0784372117643977,
            48.72279444692778
          ],
          [
            2.0787376188892304,
            48.722865224596546
          ],
          [
            2.0794349931106777,
            48.722454708952746
          ],
          [
            2.0782119060404556,
            48.72147795055781
          ],
          [
            2.0759803080371824,
            48.72253964340607
          ],
          [
            2.0759695802573646,
            48.72254672116964
          ],
          [
            2.0765489372464283,
            48.72322619331954
          ]
        ]
      ]
    },
    "properties": {}
  },
  "id_unique": "Marathon2_63",
  "inseeprinc": 78356,
  "shape_leng": 670.16553131,
  "geo_point_2d": {
    "lat": 48.72241965356238,
    "lon": 2.0776957084606713
  },
  "st_area_shape": 25718.87187864,
  "st_length_shape": 670.1655313154557
}

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

Verification Status

Using the API

Configuration

Base URL: https://data.iledefrance.fr/api/explore/v2.1/catalog/datasets/friches-franciliennes-publiques-plus-de-1ha

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.iledefrance.fr/api/explore/v2.1/catalog/datasets/friches-franciliennes-publiques-plus-de-1ha/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

10 000 req/day

per ipmeasured

observed 3 days ago

Dataset

Volume & freshness

Records

206

Update cadence

Annual

declared upstream

Last upstream update

23 days ago

2026-10-02

Temporal coverage

2024 → ongoing

License

No license declared upstream.

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Source: opendatasoft

Machine-readable & source

JSON

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