{
 "code_insee": "12100",
 "nom": "Firmi",
 "departement": "12",
 "annee_reference": 2025,
 "prix_m2_median": 1004,
 "prix_m2_median_appartement": 449,
 "prix_m2_median_appartement_yoy_pct": -66,
 "prix_m2_median_maison": 1024,
 "prix_m2_median_maison_yoy_pct": -22,
 "prix_vente_median": 84000,
 "ventes_annee_reference": 25,
 "ventes_5_ans": 136,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 27,
  "prix_m2_median": 1004,
  "prix_m2_median_appartement": null,
  "prix_m2_median_appartement_yoy_pct": null,
  "prix_m2_median_maison": 1004,
  "prix_m2_median_maison_yoy_pct": -25.2
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 1125,
   "apt_n": 1,
   "maison": 1173,
   "maison_n": 15
  },
  {
   "annee": 2022,
   "apt": 1286,
   "apt_n": 3,
   "maison": 1231,
   "maison_n": 27
  },
  {
   "annee": 2023,
   "apt": null,
   "apt_n": 0,
   "maison": 1114,
   "maison_n": 28
  },
  {
   "annee": 2024,
   "apt": 1320,
   "apt_n": 4,
   "maison": 1313,
   "maison_n": 19
  },
  {
   "annee": 2025,
   "apt": 449,
   "apt_n": 3,
   "maison": 1024,
   "maison_n": 22
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 849,
    "n": 4
   },
   {
    "band": "60-90 m²",
    "median": 1310,
    "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": 1323,
    "n": 5
   },
   {
    "band": "60-90 m²",
    "median": 1197,
    "n": 16
   },
   {
    "band": "90-120 m²",
    "median": 1043,
    "n": 15
   },
   {
    "band": "120 m² et +",
    "median": 797,
    "n": 5
   }
  ]
 },
 "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/12100-firmi"
}