{
 "code_insee": "59340",
 "nom": "Leffrinckoucke",
 "departement": "59",
 "annee_reference": 2025,
 "prix_m2_median": 2540,
 "prix_m2_median_appartement": 2770,
 "prix_m2_median_appartement_yoy_pct": -8.7,
 "prix_m2_median_maison": 2513,
 "prix_m2_median_maison_yoy_pct": 3.9,
 "prix_vente_median": 209500,
 "ventes_annee_reference": 40,
 "ventes_5_ans": 234,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 55,
  "prix_m2_median": 2595,
  "prix_m2_median_appartement": 3027,
  "prix_m2_median_appartement_yoy_pct": null,
  "prix_m2_median_maison": 2499,
  "prix_m2_median_maison_yoy_pct": 0.4
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 2839,
   "apt_n": 2,
   "maison": 2040,
   "maison_n": 30
  },
  {
   "annee": 2022,
   "apt": 3124,
   "apt_n": 8,
   "maison": 2217,
   "maison_n": 46
  },
  {
   "annee": 2023,
   "apt": 3750,
   "apt_n": 3,
   "maison": 2310,
   "maison_n": 30
  },
  {
   "annee": 2024,
   "apt": 3033,
   "apt_n": 5,
   "maison": 2418,
   "maison_n": 40
  },
  {
   "annee": 2025,
   "apt": 2770,
   "apt_n": 12,
   "maison": 2513,
   "maison_n": 28
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 3000,
    "n": 7
   },
   {
    "band": "60-90 m²",
    "median": 2770,
    "n": 10
   },
   {
    "band": "90-120 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "120 m² et +",
    "median": null,
    "n": 0
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "60-90 m²",
    "median": 2500,
    "n": 29
   },
   {
    "band": "90-120 m²",
    "median": 2431,
    "n": 30
   },
   {
    "band": "120 m² et +",
    "median": 2718,
    "n": 9
   }
  ]
 },
 "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/59340-leffrinckoucke"
}