{
 "code_insee": "91661",
 "nom": "Villebon sur Yvette",
 "departement": "91",
 "annee_reference": 2025,
 "prix_m2_median": 3506,
 "prix_m2_median_appartement": 3333,
 "prix_m2_median_appartement_yoy_pct": 6.7,
 "prix_m2_median_maison": 4002,
 "prix_m2_median_maison_yoy_pct": 4.4,
 "prix_vente_median": 250000,
 "ventes_annee_reference": 99,
 "ventes_5_ans": 558,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3599,
   "apt_n": 88,
   "maison": 4151,
   "maison_n": 69
  },
  {
   "annee": 2022,
   "apt": 3500,
   "apt_n": 67,
   "maison": 4587,
   "maison_n": 43
  },
  {
   "annee": 2023,
   "apt": 3440,
   "apt_n": 54,
   "maison": 4189,
   "maison_n": 43
  },
  {
   "annee": 2024,
   "apt": 3125,
   "apt_n": 49,
   "maison": 3833,
   "maison_n": 46
  },
  {
   "annee": 2025,
   "apt": 3333,
   "apt_n": 53,
   "maison": 4002,
   "maison_n": 46
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 3820,
    "n": 4
   },
   {
    "band": "30-60 m²",
    "median": 3447,
    "n": 32
   },
   {
    "band": "60-90 m²",
    "median": 3083,
    "n": 58
   },
   {
    "band": "90-120 m²",
    "median": 2848,
    "n": 5
   },
   {
    "band": "120 m² et +",
    "median": 3387,
    "n": 3
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": 4912,
    "n": 2
   },
   {
    "band": "30-60 m²",
    "median": 4361,
    "n": 14
   },
   {
    "band": "60-90 m²",
    "median": 4376,
    "n": 26
   },
   {
    "band": "90-120 m²",
    "median": 4025,
    "n": 18
   },
   {
    "band": "120 m² et +",
    "median": 3487,
    "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/91661-villebon-sur-yvette"
}