{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "src",
    "name": "鉄骨鉄筋コンクリート造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "all",
    "label": "貸家"
  },
  "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": {
    "fiscal_year": 2026,
    "through_month": "2026-08",
    "months": 5,
    "units": 24,
    "price_per_tsubo": 64.6785,
    "prev_price_per_tsubo": 105.90507566867991,
    "change_vs_prev": -38.92785629808313,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 141,
      "floor_total": 7712,
      "cost_total": 146900,
      "price_per_tsubo": 62.969469787344394,
      "price_per_sqm": 190482.36514522822,
      "cost_per_unit": 1041.8439716312057,
      "floor_per_unit": 54.695035460992905,
      "yoy": null,
      "ratio_national": 0.9838187540003017,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 71.71921388080227,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 42,
      "floor_total": 2677,
      "cost_total": 45000,
      "price_per_tsubo": 55.5698729921554,
      "price_per_sqm": 168098.61785580873,
      "cost_per_unit": 1071.4285714285713,
      "floor_per_unit": 63.73809523809524,
      "yoy": -11.751086391831366,
      "ratio_national": 0.8101679448720231,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 61.812984418415354,
      "deflator": 89.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 68,
      "floor_total": 3091,
      "cost_total": 39800,
      "price_per_tsubo": 42.56565577483015,
      "price_per_sqm": 128760.91879650598,
      "cost_per_unit": 585.2941176470588,
      "floor_per_unit": 45.455882352941174,
      "yoy": -23.401560084834117,
      "ratio_national": 0.6025722436857064,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 45.9672308583479,
      "deflator": 92.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 11,
      "floor_total": 444,
      "cost_total": 12000,
      "price_per_tsubo": 89.34567567567568,
      "price_per_sqm": 270270.2702702703,
      "cost_per_unit": 1090.909090909091,
      "floor_per_unit": 40.36363636363637,
      "yoy": 109.90085562949888,
      "ratio_national": 1.2538323726976,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 95.96742822306733,
      "deflator": 93.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 35,
      "floor_total": 2120,
      "cost_total": 24020,
      "price_per_tsubo": 37.455224433962265,
      "price_per_sqm": 113301.88679245283,
      "cost_per_unit": 686.2857142857143,
      "floor_per_unit": 60.57142857142857,
      "yoy": -58.07830188679246,
      "ratio_national": 0.5032019224517716,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 40.274434875228245,
      "deflator": 93,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 69,
      "floor_total": 2353,
      "cost_total": 78850,
      "price_per_tsubo": 110.77838567785804,
      "price_per_sqm": 335104.1223969401,
      "cost_per_unit": 1142.7536231884058,
      "floor_per_unit": 34.10144927536232,
      "yoy": 195.76217297315273,
      "ratio_national": 1.318916434577969,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 116.60882702932425,
      "deflator": 95,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "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": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "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": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 200,
      "floor_total": 9536,
      "cost_total": 244500,
      "price_per_tsubo": 84.7594017407718,
      "price_per_sqm": 256396.8120805369,
      "cost_per_unit": 1222.5,
      "floor_per_unit": 47.68,
      "yoy": null,
      "ratio_national": 1.0116324768688472,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 84.7594017407718,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 60,
      "floor_total": 1613,
      "cost_total": 60000,
      "price_per_tsubo": 122.96800991940484,
      "price_per_sqm": 371977.6813391197,
      "cost_per_unit": 1000,
      "floor_per_unit": 26.883333333333333,
      "yoy": 45.07890262780554,
      "ratio_national": 1.1547806222020907,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 117.33588732767637,
      "deflator": 104.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "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": 111.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 52,
      "floor_total": 3748,
      "cost_total": 140000,
      "price_per_tsubo": 123.48201707577375,
      "price_per_sqm": 373532.5506937033,
      "cost_per_unit": 2692.3076923076924,
      "floor_per_unit": 72.07692307692308,
      "yoy": null,
      "ratio_national": 1.1797485554015916,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 108.5079236166729,
      "deflator": 113.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 18,
      "floor_total": 1035,
      "cost_total": 30000,
      "price_per_tsubo": 95.82000000000001,
      "price_per_sqm": 289855.0724637681,
      "cost_per_unit": 1666.6666666666667,
      "floor_per_unit": 57.5,
      "yoy": -22.401656314699792,
      "ratio_national": 0.8801789162254487,
      "rank_in_national": 7,
      "is_spliced": true,
      "price_per_tsubo_real": 80.31852472757754,
      "deflator": 119.3,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 50,
      "floor_total": 1870,
      "cost_total": 58130,
      "price_per_tsubo": 102.762338342246,
      "price_per_sqm": 310855.614973262,
      "cost_per_unit": 1162.6,
      "floor_per_unit": 37.4,
      "yoy": 7.245187165775402,
      "ratio_national": 0.9187075346090884,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 83.81919930036379,
      "deflator": 122.6,
      "deflator_provisional": true
    }
  ]
}