{
 "code_insee": "78686",
 "nom": "Viroflay",
 "departement": "78",
 "annee_reference": 2025,
 "prix_m2_median": 5722,
 "prix_m2_median_appartement": 5244,
 "prix_m2_median_appartement_yoy_pct": -5.8,
 "prix_m2_median_maison": 7521,
 "prix_m2_median_maison_yoy_pct": -2.1,
 "prix_vente_median": 380100,
 "ventes_annee_reference": 188,
 "ventes_5_ans": 1123,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 5606,
   "apt_n": 209,
   "maison": 8627,
   "maison_n": 77
  },
  {
   "annee": 2022,
   "apt": 5875,
   "apt_n": 192,
   "maison": 8107,
   "maison_n": 53
  },
  {
   "annee": 2023,
   "apt": 5599,
   "apt_n": 178,
   "maison": 8389,
   "maison_n": 55
  },
  {
   "annee": 2024,
   "apt": 5569,
   "apt_n": 132,
   "maison": 7681,
   "maison_n": 39
  },
  {
   "annee": 2025,
   "apt": 5244,
   "apt_n": 133,
   "maison": 7521,
   "maison_n": 55
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 5913,
    "n": 22
   },
   {
    "band": "30-60 m²",
    "median": 5250,
    "n": 123
   },
   {
    "band": "60-90 m²",
    "median": 5585,
    "n": 94
   },
   {
    "band": "90-120 m²",
    "median": 5339,
    "n": 20
   },
   {
    "band": "120 m² et +",
    "median": 5660,
    "n": 6
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": 7200,
    "n": 1
   },
   {
    "band": "30-60 m²",
    "median": 11971,
    "n": 10
   },
   {
    "band": "60-90 m²",
    "median": 8881,
    "n": 24
   },
   {
    "band": "90-120 m²",
    "median": 7521,
    "n": 27
   },
   {
    "band": "120 m² et +",
    "median": 6604,
    "n": 32
   }
  ]
 },
 "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/78686-viroflay"
}