{
 "code_insee": "54257",
 "nom": "Heillecourt",
 "departement": "54",
 "annee_reference": 2025,
 "prix_m2_median": 2467,
 "prix_m2_median_appartement": 2401,
 "prix_m2_median_appartement_yoy_pct": 3.5,
 "prix_m2_median_maison": 2467,
 "prix_m2_median_maison_yoy_pct": -5.3,
 "prix_vente_median": 234000,
 "ventes_annee_reference": 47,
 "ventes_5_ans": 213,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 42,
  "prix_m2_median": 2554,
  "prix_m2_median_appartement": null,
  "prix_m2_median_appartement_yoy_pct": null,
  "prix_m2_median_maison": 2585,
  "prix_m2_median_maison_yoy_pct": 2.5
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 1926,
   "apt_n": 2,
   "maison": 2785,
   "maison_n": 29
  },
  {
   "annee": 2022,
   "apt": 2234,
   "apt_n": 3,
   "maison": 2757,
   "maison_n": 53
  },
  {
   "annee": 2023,
   "apt": 2624,
   "apt_n": 4,
   "maison": 2615,
   "maison_n": 26
  },
  {
   "annee": 2024,
   "apt": 2320,
   "apt_n": 5,
   "maison": 2606,
   "maison_n": 26
  },
  {
   "annee": 2025,
   "apt": 2401,
   "apt_n": 4,
   "maison": 2467,
   "maison_n": 43
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 1748,
    "n": 2
   },
   {
    "band": "30-60 m²",
    "median": 2688,
    "n": 3
   },
   {
    "band": "60-90 m²",
    "median": 2320,
    "n": 1
   },
   {
    "band": "90-120 m²",
    "median": 2113,
    "n": 3
   },
   {
    "band": "120 m² et +",
    "median": null,
    "n": 0
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 5875,
    "n": 3
   },
   {
    "band": "60-90 m²",
    "median": 2561,
    "n": 17
   },
   {
    "band": "90-120 m²",
    "median": 2467,
    "n": 35
   },
   {
    "band": "120 m² et +",
    "median": 2435,
    "n": 14
   }
  ]
 },
 "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/54257-heillecourt"
}