{
 "code_insee": "78310",
 "nom": "Houdan",
 "departement": "78",
 "annee_reference": 2025,
 "prix_m2_median": 3281,
 "prix_m2_median_appartement": 3462,
 "prix_m2_median_appartement_yoy_pct": 4.7,
 "prix_m2_median_maison": 3111,
 "prix_m2_median_maison_yoy_pct": -8.6,
 "prix_vente_median": 217800,
 "ventes_annee_reference": 55,
 "ventes_5_ans": 278,
 "fiabilite": "Modérée",
 "derniers_12_mois": {
  "debut": "2025-07-01",
  "fin": "2026-06-30",
  "ventes": 60,
  "prix_m2_median": 3038,
  "prix_m2_median_appartement": 3018,
  "prix_m2_median_appartement_yoy_pct": -6.2,
  "prix_m2_median_maison": 3140,
  "prix_m2_median_maison_yoy_pct": -6.5
 },
 "series_annuelles": [
  {
   "annee": 2021,
   "apt": 3525,
   "apt_n": 23,
   "maison": 3479,
   "maison_n": 18
  },
  {
   "annee": 2022,
   "apt": 3350,
   "apt_n": 31,
   "maison": 3065,
   "maison_n": 37
  },
  {
   "annee": 2023,
   "apt": 3151,
   "apt_n": 26,
   "maison": 3482,
   "maison_n": 22
  },
  {
   "annee": 2024,
   "apt": 3308,
   "apt_n": 24,
   "maison": 3403,
   "maison_n": 13
  },
  {
   "annee": 2025,
   "apt": 3462,
   "apt_n": 28,
   "maison": 3111,
   "maison_n": 27
  }
 ],
 "tranches_surface": {
  "Appartement": [
   {
    "band": "< 30 m²",
    "median": 3941,
    "n": 3
   },
   {
    "band": "30-60 m²",
    "median": 3594,
    "n": 29
   },
   {
    "band": "60-90 m²",
    "median": 3210,
    "n": 14
   },
   {
    "band": "90-120 m²",
    "median": 2550,
    "n": 3
   },
   {
    "band": "120 m² et +",
    "median": 1967,
    "n": 3
   }
  ],
  "Maison": [
   {
    "band": "< 30 m²",
    "median": null,
    "n": 0
   },
   {
    "band": "30-60 m²",
    "median": 4630,
    "n": 5
   },
   {
    "band": "60-90 m²",
    "median": 3403,
    "n": 15
   },
   {
    "band": "90-120 m²",
    "median": 2892,
    "n": 13
   },
   {
    "band": "120 m² et +",
    "median": 3500,
    "n": 7
   }
  ]
 },
 "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/78310-houdan"
}