{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "other",
    "name": "その他"
  },
  "segment": {
    "segment": "all",
    "building_type": "detached",
    "label": "一戸建"
  },
  "unit": {
    "price_per_tsubo": "万円/坪",
    "price_per_sqm": "円/㎡",
    "cost": "万円",
    "floor": "㎡",
    "yoy": "%"
  },
  "formula": "price_per_tsubo = cost_total / floor_total * 3.30579",
  "formula_real": "price_per_tsubo_real = price_per_tsubo / deflator * 100 (MLIT construction cost deflator for housing of the same structure, FY2020 = 100)",
  "source": "https://www.e-stat.go.jp/stat-search/files?page=1&toukei=00600120&tstat=000001016966&cycle=8",
  "last_verified_at": "2026-10-13T11:03:37.415Z",
  "provisional": null,
  "years": [
    {
      "fiscal_year": 2012,
      "units": 49,
      "floor_total": 5857,
      "cost_total": 114408,
      "price_per_tsubo": 64.57381292812019,
      "price_per_sqm": 195335.49598770702,
      "cost_per_unit": 2334.8571428571427,
      "floor_per_unit": 119.53061224489795,
      "yoy": null,
      "ratio_national": 1.1282140648432022,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 74.7382094075465,
      "deflator": 86.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 11,
      "floor_total": 1273,
      "cost_total": 22301,
      "price_per_tsubo": 57.912350974076986,
      "price_per_sqm": 175184.603299293,
      "cost_per_unit": 2027.3636363636363,
      "floor_per_unit": 115.72727272727273,
      "yoy": null,
      "ratio_national": 1.0255464857939485,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 63.22309058305349,
      "deflator": 91.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 83,
      "floor_total": 9579,
      "cost_total": 192991,
      "price_per_tsubo": 66.60274745693704,
      "price_per_sqm": 201473.0138845391,
      "cost_per_unit": 2325.1927710843374,
      "floor_per_unit": 115.40963855421687,
      "yoy": 15.006119310801402,
      "ratio_national": 1.1287664832682291,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 71.9252132364331,
      "deflator": 92.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 32,
      "floor_total": 4201,
      "cost_total": 95783,
      "price_per_tsubo": 75.37216938109974,
      "price_per_sqm": 228000.4760771245,
      "cost_per_unit": 2993.21875,
      "floor_per_unit": 131.28125,
      "yoy": 13.166757016792285,
      "ratio_national": 1.2718121421134614,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 81.22001010894368,
      "deflator": 92.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 14,
      "floor_total": 1348,
      "cost_total": 25940,
      "price_per_tsubo": 63.61438620178042,
      "price_per_sqm": 192433.234421365,
      "cost_per_unit": 1852.857142857143,
      "floor_per_unit": 96.28571428571429,
      "yoy": null,
      "ratio_national": 1.0868895652883077,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 63.487411379022376,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 11,
      "floor_total": 1191,
      "cost_total": 25075,
      "price_per_tsubo": 69.59923110831234,
      "price_per_sqm": 210537.36356003358,
      "cost_per_unit": 2279.5454545454545,
      "floor_per_unit": 108.27272727272727,
      "yoy": 9.408005427496246,
      "ratio_national": 1.145816070684844,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 69.59923110831234,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 11,
      "floor_total": 1217,
      "cost_total": 24557,
      "price_per_tsubo": 66.70524653245685,
      "price_per_sqm": 201783.07313064914,
      "cost_per_unit": 2232.4545454545455,
      "floor_per_unit": 110.63636363636364,
      "yoy": -4.158069751304838,
      "ratio_national": 1.1285328531726484,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 63.1678470951296,
      "deflator": 105.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2025,
      "units": 0,
      "floor_total": 0,
      "cost_total": 0,
      "price_per_tsubo": null,
      "price_per_sqm": null,
      "cost_per_unit": null,
      "floor_per_unit": null,
      "yoy": null,
      "ratio_national": null,
      "rank_in_national": null,
      "is_spliced": false,
      "price_per_tsubo_real": null,
      "deflator": 123.4,
      "deflator_provisional": true
    }
  ]
}