{
 "code_insee": "91579",
 "nom": "Saint-Vrain",
 "departement": "91",
 "annee_reference": 2025,
 "prix_m2_median": 3272,
 "prix_m2_median_appartement": 3268,
 "prix_m2_median_appartement_yoy_pct": 3.2,
 "prix_m2_median_maison": 3272,
 "prix_m2_median_maison_yoy_pct": 3.4,
 "prix_vente_median": 276465,
 "ventes_annee_reference": 34,
 "ventes_5_ans": 175,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 32,
  "prix_m2_median": 3196,
  "prix_m2_median_appartement": null,
  "prix_m2_median_appartement_yoy_pct": null,
  "prix_m2_median_maison": 3299,
  "prix_m2_median_maison_yoy_pct": 4.3
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3097,
   "apt_n": 11,
   "maison": 3414,
   "maison_n": 18
  },
  {
   "annee": 2022,
   "apt": 2860,
   "apt_n": 15,
   "maison": 3636,
   "maison_n": 27
  },
  {
   "annee": 2023,
   "apt": 3140,
   "apt_n": 10,
   "maison": 3292,
   "maison_n": 17
  },
  {
   "annee": 2024,
   "apt": 3167,
   "apt_n": 7,
   "maison": 3163,
   "maison_n": 23
  },
  {
   "annee": 2025,
   "apt": 3268,
   "apt_n": 12,
   "maison": 3272,
   "maison_n": 22
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 3984,
    "n": 4
   },
   {
    "band": "30-60 m²",
    "median": 3250,
    "n": 12
   },
   {
    "band": "60-90 m²",
    "median": 2431,
    "n": 3
   },
   {
    "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": 4896,
    "n": 5
   },
   {
    "band": "60-90 m²",
    "median": 3204,
    "n": 18
   },
   {
    "band": "90-120 m²",
    "median": 3163,
    "n": 13
   },
   {
    "band": "120 m² et +",
    "median": 2576,
    "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/91579-saint-vrain"
}