{
 "code_insee": "91286",
 "nom": "Grigny",
 "departement": "91",
 "annee_reference": 2025,
 "prix_m2_median": 1200,
 "prix_m2_median_appartement": 1087,
 "prix_m2_median_appartement_yoy_pct": 0.4,
 "prix_m2_median_maison": 2805,
 "prix_m2_median_maison_yoy_pct": 6.3,
 "prix_vente_median": 67611,
 "ventes_annee_reference": 123,
 "ventes_5_ans": 417,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 2536,
   "apt_n": 13,
   "maison": 3091,
   "maison_n": 27
  },
  {
   "annee": 2022,
   "apt": 2652,
   "apt_n": 15,
   "maison": 2870,
   "maison_n": 29
  },
  {
   "annee": 2023,
   "apt": 1235,
   "apt_n": 41,
   "maison": 3000,
   "maison_n": 15
  },
  {
   "annee": 2024,
   "apt": 1083,
   "apt_n": 141,
   "maison": 2639,
   "maison_n": 13
  },
  {
   "annee": 2025,
   "apt": 1087,
   "apt_n": 107,
   "maison": 2805,
   "maison_n": 16
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 1100,
    "n": 27
   },
   {
    "band": "30-60 m²",
    "median": 1081,
    "n": 101
   },
   {
    "band": "60-90 m²",
    "median": 1087,
    "n": 105
   },
   {
    "band": "90-120 m²",
    "median": 893,
    "n": 15
   },
   {
    "band": "120 m² et +",
    "median": null,
    "n": 0
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 2789,
    "n": 3
   },
   {
    "band": "60-90 m²",
    "median": 3087,
    "n": 8
   },
   {
    "band": "90-120 m²",
    "median": 1923,
    "n": 14
   },
   {
    "band": "120 m² et +",
    "median": 2699,
    "n": 4
   }
  ]
 },
 "est_hub_arrondissements": false,
 "arrondissements": null,
 "source": {
  "dataset": "Demandes de valeurs foncières (DVF), DGFiP",
  "url": "https://www.data.gouv.fr/fr/datasets/demandes-de-valeurs-foncieres/",
  "licence": "Licence Ouverte 2.0",
  "methodologie": "https://foncierdata.fr/methodologie"
 },
 "page": "https://foncierdata.fr/prix-immobilier/91286-grigny"
}