{
 "code_insee": "78640",
 "nom": "Velizy Villacoublay",
 "departement": "78",
 "annee_reference": 2025,
 "prix_m2_median": 4214,
 "prix_m2_median_appartement": 4090,
 "prix_m2_median_appartement_yoy_pct": 0.3,
 "prix_m2_median_maison": 6182,
 "prix_m2_median_maison_yoy_pct": -4.7,
 "prix_vente_median": 290000,
 "ventes_annee_reference": 173,
 "ventes_5_ans": 958,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 4371,
   "apt_n": 183,
   "maison": 7127,
   "maison_n": 40
  },
  {
   "annee": 2022,
   "apt": 4521,
   "apt_n": 175,
   "maison": 7461,
   "maison_n": 54
  },
  {
   "annee": 2023,
   "apt": 4478,
   "apt_n": 144,
   "maison": 6288,
   "maison_n": 28
  },
  {
   "annee": 2024,
   "apt": 4079,
   "apt_n": 127,
   "maison": 6487,
   "maison_n": 34
  },
  {
   "annee": 2025,
   "apt": 4090,
   "apt_n": 144,
   "maison": 6182,
   "maison_n": 29
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 5970,
    "n": 6
   },
   {
    "band": "30-60 m²",
    "median": 4564,
    "n": 92
   },
   {
    "band": "60-90 m²",
    "median": 3984,
    "n": 143
   },
   {
    "band": "90-120 m²",
    "median": 3693,
    "n": 30
   },
   {
    "band": "120 m² et +",
    "median": null,
    "n": 0
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": 16364,
    "n": 1
   },
   {
    "band": "30-60 m²",
    "median": 7143,
    "n": 9
   },
   {
    "band": "60-90 m²",
    "median": 7045,
    "n": 19
   },
   {
    "band": "90-120 m²",
    "median": 6250,
    "n": 13
   },
   {
    "band": "120 m² et +",
    "median": 5760,
    "n": 21
   }
  ]
 },
 "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/78640-velizy-villacoublay"
}