{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "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": {
    "fiscal_year": 2026,
    "through_month": "2026-08",
    "months": 5,
    "units": 7737,
    "price_per_tsubo": 70.25303620306083,
    "prev_price_per_tsubo": 69.51563037355295,
    "change_vs_prev": 1.0607770159679433,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 20637,
      "floor_total": 2298380,
      "cost_total": 37764275,
      "price_per_tsubo": 54.3168504130083,
      "price_per_sqm": 164308.23014471063,
      "cost_per_unit": 1829.9304646993264,
      "floor_per_unit": 111.3718079178175,
      "yoy": null,
      "ratio_national": 1.0219447963510833,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 61.79391400797303,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 23254,
      "floor_total": 2575665,
      "cost_total": 42518301,
      "price_per_tsubo": 54.57098429445988,
      "price_per_sqm": 165076.98400218974,
      "cost_per_unit": 1828.4295605057193,
      "floor_per_unit": 110.76223445428744,
      "yoy": 0.4678730072145809,
      "ratio_national": 1.0177222238377877,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 60.166465594773854,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 20380,
      "floor_total": 2246609,
      "cost_total": 37138142,
      "price_per_tsubo": 54.647203159152305,
      "price_per_sqm": 165307.5457278058,
      "cost_per_unit": 1822.2837095191364,
      "floor_per_unit": 110.23596663395486,
      "yoy": 0.13966921373664842,
      "ratio_national": 1.0012839277367949,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 58.44620658732866,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 20502,
      "floor_total": 2263536,
      "cost_total": 37952883,
      "price_per_tsubo": 55.42843634586329,
      "price_per_sqm": 167670.7726318468,
      "cost_per_unit": 1851.1795434591747,
      "floor_per_unit": 110.40561896400351,
      "yoy": 1.429594089995323,
      "ratio_national": 1.0040297385797945,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 59.28175010252759,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 21273,
      "floor_total": 2336497,
      "cost_total": 39120903,
      "price_per_tsubo": 55.350163055364504,
      "price_per_sqm": 167433.99627733312,
      "cost_per_unit": 1838.9932308560146,
      "floor_per_unit": 109.83392093263761,
      "yoy": -0.14121504350289582,
      "ratio_national": 1.000197366516367,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 58.94586054884399,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 21198,
      "floor_total": 2320710,
      "cost_total": 38786429,
      "price_per_tsubo": 55.250242005209614,
      "price_per_sqm": 167131.73554644914,
      "cost_per_unit": 1829.7211529389565,
      "floor_per_unit": 109.47778092272856,
      "yoy": -0.1805253040626842,
      "ratio_national": 0.991123148411356,
      "rank_in_national": 25,
      "is_spliced": false,
      "price_per_tsubo_real": 57.97507030976875,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 21664,
      "floor_total": 2363905,
      "cost_total": 39828921,
      "price_per_tsubo": 55.698536427051856,
      "price_per_sqm": 168487.82417229118,
      "cost_per_unit": 1838.484167282127,
      "floor_per_unit": 109.11673744460856,
      "yoy": 0.811389064684942,
      "ratio_national": 0.9900968347768323,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 56.89329563539515,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 21552,
      "floor_total": 2346273,
      "cost_total": 39172166,
      "price_per_tsubo": 55.191767812671415,
      "price_per_sqm": 166954.85137492526,
      "cost_per_unit": 1817.5652375649593,
      "floor_per_unit": 108.86567371937639,
      "yoy": -0.9098418861403168,
      "ratio_national": 0.9738952592084474,
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      "is_spliced": false,
      "price_per_tsubo_real": 55.136631181489925,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 20223,
      "floor_total": 2202750,
      "cost_total": 37030659,
      "price_per_tsubo": 55.573978987906024,
      "price_per_sqm": 168111.03847463397,
      "cost_per_unit": 1831.1160065272215,
      "floor_per_unit": 108.92300845571873,
      "yoy": 0.69251482672541,
      "ratio_national": 0.9731348726554792,
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      "is_spliced": false,
      "price_per_tsubo_real": 55.573978987906024,
      "deflator": 100,
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    },
    {
      "fiscal_year": 2021,
      "units": 22589,
      "floor_total": 2454079,
      "cost_total": 41261779,
      "price_per_tsubo": 55.58206414724628,
      "price_per_sqm": 168135.4960455633,
      "cost_per_unit": 1826.6315020585241,
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      "yoy": 0.014548462225483227,
      "ratio_national": 0.9704685974094437,
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      "is_spliced": false,
      "price_per_tsubo_real": 50.391717268582305,
      "deflator": 110.3,
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    },
    {
      "fiscal_year": 2022,
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      "floor_total": 2225512,
      "cost_total": 37850841,
      "price_per_tsubo": 56.22388541126267,
      "price_per_sqm": 170077.00250549088,
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      "is_spliced": false,
      "price_per_tsubo_real": 48.178136599196804,
      "deflator": 116.7,
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    {
      "fiscal_year": 2023,
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      "cost_total": 40684596,
      "price_per_tsubo": 64.95713897790647,
      "price_per_sqm": 196495.05557796007,
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      "price_per_tsubo_real": 56.58287367413456,
      "deflator": 114.8,
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    {
      "fiscal_year": 2024,
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    {
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  ]
}