{
 "code_insee": "69270",
 "nom": "Chaponnay",
 "departement": "69",
 "annee_reference": 2025,
 "prix_m2_median": 3617,
 "prix_m2_median_appartement": 3881,
 "prix_m2_median_appartement_yoy_pct": -17,
 "prix_m2_median_maison": 3501,
 "prix_m2_median_maison_yoy_pct": -1.6,
 "prix_vente_median": 355650,
 "ventes_annee_reference": 29,
 "ventes_5_ans": 138,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 23,
  "prix_m2_median": 3881,
  "prix_m2_median_appartement": null,
  "prix_m2_median_appartement_yoy_pct": null,
  "prix_m2_median_maison": 3594,
  "prix_m2_median_maison_yoy_pct": 1
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3120,
   "apt_n": 6,
   "maison": 4242,
   "maison_n": 17
  },
  {
   "annee": 2022,
   "apt": 4699,
   "apt_n": 8,
   "maison": 4651,
   "maison_n": 21
  },
  {
   "annee": 2023,
   "apt": 4505,
   "apt_n": 9,
   "maison": 4133,
   "maison_n": 17
  },
  {
   "annee": 2024,
   "apt": 4678,
   "apt_n": 9,
   "maison": 3557,
   "maison_n": 17
  },
  {
   "annee": 2025,
   "apt": 3881,
   "apt_n": 9,
   "maison": 3501,
   "maison_n": 20
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 4650,
    "n": 7
   },
   {
    "band": "60-90 m²",
    "median": 4707,
    "n": 6
   },
   {
    "band": "90-120 m²",
    "median": 3240,
    "n": 4
   },
   {
    "band": "120 m² et +",
    "median": 3489,
    "n": 1
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 6981,
    "n": 1
   },
   {
    "band": "60-90 m²",
    "median": 3820,
    "n": 10
   },
   {
    "band": "90-120 m²",
    "median": 3617,
    "n": 9
   },
   {
    "band": "120 m² et +",
    "median": 3125,
    "n": 17
   }
  ]
 },
 "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/69270-chaponnay"
}