{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "other",
    "name": "その他"
  },
  "segment": {
    "segment": "owner",
    "building_type": "detached",
    "label": "持家・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": 36,
      "floor_total": 4479,
      "cost_total": 86610,
      "price_per_tsubo": 63.92374902880107,
      "price_per_sqm": 193369.05559276624,
      "cost_per_unit": 2405.8333333333335,
      "floor_per_unit": 124.41666666666667,
      "yoy": null,
      "ratio_national": 1.1207575274531112,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 73.98582063518641,
      "deflator": 86.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 10,
      "floor_total": 1193,
      "cost_total": 20851,
      "price_per_tsubo": 57.777893788767805,
      "price_per_sqm": 174777.87091366304,
      "cost_per_unit": 2085.1,
      "floor_per_unit": 119.3,
      "yoy": null,
      "ratio_national": 1.007652481557043,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 63.076303262846956,
      "deflator": 91.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 52,
      "floor_total": 6152,
      "cost_total": 123644,
      "price_per_tsubo": 66.44036065669701,
      "price_per_sqm": 200981.79453836152,
      "cost_per_unit": 2377.769230769231,
      "floor_per_unit": 118.3076923076923,
      "yoy": 14.992701013987485,
      "ratio_national": 1.1149673097270258,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 71.74984952127107,
      "deflator": 92.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 28,
      "floor_total": 3793,
      "cost_total": 87083,
      "price_per_tsubo": 75.89720816504087,
      "price_per_sqm": 229588.71605589244,
      "cost_per_unit": 3110.1071428571427,
      "floor_per_unit": 135.46428571428572,
      "yoy": 14.233588461700553,
      "ratio_national": 1.2501365935842177,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 81.78578466060439,
      "deflator": 92.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 10,
      "floor_total": 1108,
      "cost_total": 22557,
      "price_per_tsubo": 67.30027529783393,
      "price_per_sqm": 203583.03249097473,
      "cost_per_unit": 2255.7,
      "floor_per_unit": 110.8,
      "yoy": null,
      "ratio_national": 1.1359691775950225,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 63.731321304766986,
      "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
    }
  ]
}