{
 "code_insee": "77243",
 "nom": "Lagny-sur-Marne",
 "departement": "77",
 "annee_reference": 2025,
 "prix_m2_median": 3894,
 "prix_m2_median_appartement": 3886,
 "prix_m2_median_appartement_yoy_pct": 3.6,
 "prix_m2_median_maison": 3939,
 "prix_m2_median_maison_yoy_pct": 2.8,
 "prix_vente_median": 234500,
 "ventes_annee_reference": 248,
 "ventes_5_ans": 1404,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3710,
   "apt_n": 227,
   "maison": 4097,
   "maison_n": 115
  },
  {
   "annee": 2022,
   "apt": 3986,
   "apt_n": 239,
   "maison": 4399,
   "maison_n": 95
  },
  {
   "annee": 2023,
   "apt": 4007,
   "apt_n": 172,
   "maison": 4427,
   "maison_n": 81
  },
  {
   "annee": 2024,
   "apt": 3751,
   "apt_n": 148,
   "maison": 3833,
   "maison_n": 79
  },
  {
   "annee": 2025,
   "apt": 3886,
   "apt_n": 166,
   "maison": 3939,
   "maison_n": 82
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 4557,
    "n": 35
   },
   {
    "band": "30-60 m²",
    "median": 4000,
    "n": 144
   },
   {
    "band": "60-90 m²",
    "median": 3619,
    "n": 96
   },
   {
    "band": "90-120 m²",
    "median": 3048,
    "n": 32
   },
   {
    "band": "120 m² et +",
    "median": 3150,
    "n": 7
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": 4525,
    "n": 2
   },
   {
    "band": "30-60 m²",
    "median": 4661,
    "n": 17
   },
   {
    "band": "60-90 m²",
    "median": 4195,
    "n": 49
   },
   {
    "band": "90-120 m²",
    "median": 3786,
    "n": 51
   },
   {
    "band": "120 m² et +",
    "median": 3454,
    "n": 42
   }
  ]
 },
 "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/77243-lagny-sur-marne"
}