{
 "code_insee": "44131",
 "nom": "Pornic",
 "departement": "44",
 "annee_reference": 2025,
 "prix_m2_median": 4877,
 "prix_m2_median_appartement": 5345,
 "prix_m2_median_appartement_yoy_pct": 5.1,
 "prix_m2_median_maison": 4591,
 "prix_m2_median_maison_yoy_pct": -4.9,
 "prix_vente_median": 323411,
 "ventes_annee_reference": 284,
 "ventes_5_ans": 1466,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 4517,
   "apt_n": 70,
   "maison": 4118,
   "maison_n": 248
  },
  {
   "annee": 2022,
   "apt": 4723,
   "apt_n": 69,
   "maison": 4444,
   "maison_n": 263
  },
  {
   "annee": 2023,
   "apt": 5265,
   "apt_n": 63,
   "maison": 4946,
   "maison_n": 196
  },
  {
   "annee": 2024,
   "apt": 5087,
   "apt_n": 85,
   "maison": 4826,
   "maison_n": 188
  },
  {
   "annee": 2025,
   "apt": 5345,
   "apt_n": 71,
   "maison": 4591,
   "maison_n": 213
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 5970,
    "n": 36
   },
   {
    "band": "30-60 m²",
    "median": 5085,
    "n": 89
   },
   {
    "band": "60-90 m²",
    "median": 5000,
    "n": 23
   },
   {
    "band": "90-120 m²",
    "median": 5398,
    "n": 8
   },
   {
    "band": "120 m² et +",
    "median": null,
    "n": 0
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": 8896,
    "n": 14
   },
   {
    "band": "30-60 m²",
    "median": 5634,
    "n": 70
   },
   {
    "band": "60-90 m²",
    "median": 4506,
    "n": 139
   },
   {
    "band": "90-120 m²",
    "median": 4318,
    "n": 107
   },
   {
    "band": "120 m² et +",
    "median": 5100,
    "n": 71
   }
  ]
 },
 "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/44131-pornic"
}