{
 "code_insee": "95555",
 "nom": "St Gratien",
 "departement": "95",
 "annee_reference": 2025,
 "prix_m2_median": 3750,
 "prix_m2_median_appartement": 3333,
 "prix_m2_median_appartement_yoy_pct": 0.4,
 "prix_m2_median_maison": 4930,
 "prix_m2_median_maison_yoy_pct": 8.2,
 "prix_vente_median": 242000,
 "ventes_annee_reference": 217,
 "ventes_5_ans": 1080,
 "fiabilite": "Forte",
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3810,
   "apt_n": 194,
   "maison": 5281,
   "maison_n": 71
  },
  {
   "annee": 2022,
   "apt": 3964,
   "apt_n": 174,
   "maison": 5121,
   "maison_n": 73
  },
  {
   "annee": 2023,
   "apt": 3750,
   "apt_n": 159,
   "maison": 5046,
   "maison_n": 40
  },
  {
   "annee": 2024,
   "apt": 3319,
   "apt_n": 106,
   "maison": 4557,
   "maison_n": 46
  },
  {
   "annee": 2025,
   "apt": 3333,
   "apt_n": 153,
   "maison": 4930,
   "maison_n": 64
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 4083,
    "n": 26
   },
   {
    "band": "30-60 m²",
    "median": 4083,
    "n": 64
   },
   {
    "band": "60-90 m²",
    "median": 3041,
    "n": 134
   },
   {
    "band": "90-120 m²",
    "median": 2958,
    "n": 34
   },
   {
    "band": "120 m² et +",
    "median": 3333,
    "n": 1
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 6271,
    "n": 9
   },
   {
    "band": "60-90 m²",
    "median": 4923,
    "n": 53
   },
   {
    "band": "90-120 m²",
    "median": 4364,
    "n": 25
   },
   {
    "band": "120 m² et +",
    "median": 4286,
    "n": 23
   }
  ]
 },
 "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/95555-st-gratien"
}