{
 "code_insee": "92012",
 "nom": "Boulogne-Billancourt",
 "departement": "92",
 "annee_reference": 2025,
 "prix_m2_median": 8327,
 "prix_m2_median_appartement": 8286,
 "prix_m2_median_appartement_yoy_pct": 1.3,
 "prix_m2_median_maison": 12420,
 "prix_m2_median_maison_yoy_pct": -5,
 "prix_vente_median": 420000,
 "ventes_annee_reference": 1578,
 "ventes_5_ans": 8282,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 9374,
   "apt_n": 1854,
   "maison": 12496,
   "maison_n": 45
  },
  {
   "annee": 2022,
   "apt": 9249,
   "apt_n": 1954,
   "maison": 13981,
   "maison_n": 38
  },
  {
   "annee": 2023,
   "apt": 8867,
   "apt_n": 1456,
   "maison": 13564,
   "maison_n": 27
  },
  {
   "annee": 2024,
   "apt": 8180,
   "apt_n": 1302,
   "maison": 13069,
   "maison_n": 28
  },
  {
   "annee": 2025,
   "apt": 8286,
   "apt_n": 1539,
   "maison": 12420,
   "maison_n": 39
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 8555,
    "n": 513
   },
   {
    "band": "30-60 m²",
    "median": 8032,
    "n": 1121
   },
   {
    "band": "60-90 m²",
    "median": 8077,
    "n": 783
   },
   {
    "band": "90-120 m²",
    "median": 8581,
    "n": 308
   },
   {
    "band": "120 m² et +",
    "median": 9903,
    "n": 116
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 8140,
    "n": 3
   },
   {
    "band": "60-90 m²",
    "median": 15068,
    "n": 11
   },
   {
    "band": "90-120 m²",
    "median": 12452,
    "n": 8
   },
   {
    "band": "120 m² et +",
    "median": 13000,
    "n": 45
   }
  ]
 },
 "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/92012-boulogne-billancourt"
}