{
 "code_insee": "78498",
 "nom": "Poissy",
 "departement": "78",
 "annee_reference": 2025,
 "prix_m2_median": 3851,
 "prix_m2_median_appartement": 3692,
 "prix_m2_median_appartement_yoy_pct": 3.3,
 "prix_m2_median_maison": 4439,
 "prix_m2_median_maison_yoy_pct": 0.5,
 "prix_vente_median": 227200,
 "ventes_annee_reference": 410,
 "ventes_5_ans": 2150,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3650,
   "apt_n": 404,
   "maison": 4968,
   "maison_n": 120
  },
  {
   "annee": 2022,
   "apt": 4022,
   "apt_n": 420,
   "maison": 5340,
   "maison_n": 88
  },
  {
   "annee": 2023,
   "apt": 3957,
   "apt_n": 305,
   "maison": 4786,
   "maison_n": 60
  },
  {
   "annee": 2024,
   "apt": 3575,
   "apt_n": 287,
   "maison": 4417,
   "maison_n": 56
  },
  {
   "annee": 2025,
   "apt": 3692,
   "apt_n": 320,
   "maison": 4439,
   "maison_n": 90
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 4836,
    "n": 32
   },
   {
    "band": "30-60 m²",
    "median": 3872,
    "n": 239
   },
   {
    "band": "60-90 m²",
    "median": 3436,
    "n": 298
   },
   {
    "band": "90-120 m²",
    "median": 3707,
    "n": 35
   },
   {
    "band": "120 m² et +",
    "median": 3841,
    "n": 3
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 5192,
    "n": 23
   },
   {
    "band": "60-90 m²",
    "median": 4792,
    "n": 55
   },
   {
    "band": "90-120 m²",
    "median": 4401,
    "n": 35
   },
   {
    "band": "120 m² et +",
    "median": 3927,
    "n": 33
   }
  ]
 },
 "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/78498-poissy"
}