{
 "code_insee": "45155",
 "nom": "Gien",
 "departement": "45",
 "annee_reference": 2025,
 "prix_m2_median": 1180,
 "prix_m2_median_appartement": 1031,
 "prix_m2_median_appartement_yoy_pct": -1.5,
 "prix_m2_median_maison": 1287,
 "prix_m2_median_maison_yoy_pct": 3.9,
 "prix_vente_median": 86000,
 "ventes_annee_reference": 107,
 "ventes_5_ans": 675,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 1000,
   "apt_n": 35,
   "maison": 1230,
   "maison_n": 123
  },
  {
   "annee": 2022,
   "apt": 1017,
   "apt_n": 44,
   "maison": 1333,
   "maison_n": 108
  },
  {
   "annee": 2023,
   "apt": 1008,
   "apt_n": 36,
   "maison": 1383,
   "maison_n": 97
  },
  {
   "annee": 2024,
   "apt": 1047,
   "apt_n": 43,
   "maison": 1239,
   "maison_n": 82
  },
  {
   "annee": 2025,
   "apt": 1031,
   "apt_n": 34,
   "maison": 1287,
   "maison_n": 73
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 2660,
    "n": 2
   },
   {
    "band": "30-60 m²",
    "median": 1128,
    "n": 29
   },
   {
    "band": "60-90 m²",
    "median": 1045,
    "n": 40
   },
   {
    "band": "90-120 m²",
    "median": 990,
    "n": 3
   },
   {
    "band": "120 m² et +",
    "median": 909,
    "n": 3
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 1504,
    "n": 29
   },
   {
    "band": "60-90 m²",
    "median": 1338,
    "n": 56
   },
   {
    "band": "90-120 m²",
    "median": 1230,
    "n": 39
   },
   {
    "band": "120 m² et +",
    "median": 1053,
    "n": 31
   }
  ]
 },
 "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/45155-gien"
}