{
 "code_insee": "78043",
 "nom": "Bailly",
 "departement": "78",
 "annee_reference": 2025,
 "prix_m2_median": 4220,
 "prix_m2_median_appartement": 3814,
 "prix_m2_median_appartement_yoy_pct": 1.5,
 "prix_m2_median_maison": 5622,
 "prix_m2_median_maison_yoy_pct": 11.9,
 "prix_vente_median": 419265,
 "ventes_annee_reference": 48,
 "ventes_5_ans": 254,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 52,
  "prix_m2_median": 4174,
  "prix_m2_median_appartement": 3822,
  "prix_m2_median_appartement_yoy_pct": 1.6,
  "prix_m2_median_maison": 5828,
  "prix_m2_median_maison_yoy_pct": 16.1
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 4294,
   "apt_n": 20,
   "maison": 5596,
   "maison_n": 19
  },
  {
   "annee": 2022,
   "apt": 4111,
   "apt_n": 42,
   "maison": 5636,
   "maison_n": 27
  },
  {
   "annee": 2023,
   "apt": 4165,
   "apt_n": 23,
   "maison": 6477,
   "maison_n": 13
  },
  {
   "annee": 2024,
   "apt": 3756,
   "apt_n": 24,
   "maison": 5022,
   "maison_n": 16
  },
  {
   "annee": 2025,
   "apt": 3814,
   "apt_n": 30,
   "maison": 5622,
   "maison_n": 18
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 4526,
    "n": 3
   },
   {
    "band": "30-60 m²",
    "median": 4068,
    "n": 5
   },
   {
    "band": "60-90 m²",
    "median": 3777,
    "n": 20
   },
   {
    "band": "90-120 m²",
    "median": 3710,
    "n": 22
   },
   {
    "band": "120 m² et +",
    "median": 3598,
    "n": 4
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "60-90 m²",
    "median": 7217,
    "n": 3
   },
   {
    "band": "90-120 m²",
    "median": 5556,
    "n": 14
   },
   {
    "band": "120 m² et +",
    "median": 4919,
    "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/78043-bailly"
}