{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "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": {
    "fiscal_year": 2026,
    "through_month": "2026-08",
    "months": 5,
    "units": 3432,
    "price_per_tsubo": 88.66889020752126,
    "prev_price_per_tsubo": 86.16775549256371,
    "change_vs_prev": 2.902634170589934,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 11760,
      "floor_total": 1400859,
      "cost_total": 24260523,
      "price_per_tsubo": 57.25072568200654,
      "price_per_sqm": 173183.18974286492,
      "cost_per_unit": 2062.969642857143,
      "floor_per_unit": 119.12066326530612,
      "yoy": null,
      "ratio_national": 1.0359638779763518,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 65.1316560659915,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 12982,
      "floor_total": 1539370,
      "cost_total": 27050560,
      "price_per_tsubo": 58.09095327465132,
      "price_per_sqm": 175724.87446163042,
      "cost_per_unit": 2083.697427206902,
      "floor_per_unit": 118.57726082267756,
      "yoy": 1.467627846870867,
      "ratio_national": 1.0379446879225693,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 64.04735752442262,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 10214,
      "floor_total": 1206450,
      "cost_total": 21796574,
      "price_per_tsubo": 59.72472656426706,
      "price_per_sqm": 180667.0313730366,
      "cost_per_unit": 2133.990013706677,
      "floor_per_unit": 118.11728999412571,
      "yoy": 2.81244014346147,
      "ratio_national": 1.0361353347245876,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 63.87671290295942,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 10430,
      "floor_total": 1227056,
      "cost_total": 22465210,
      "price_per_tsubo": 60.52312736003899,
      "price_per_sqm": 183082.19021788737,
      "cost_per_unit": 2153.9031639501436,
      "floor_per_unit": 117.64678811121765,
      "yoy": 1.3368010901026128,
      "ratio_national": 1.0376413727788996,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 64.7306174973679,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 10443,
      "floor_total": 1214063,
      "cost_total": 22406457,
      "price_per_tsubo": 61.01087133536727,
      "price_per_sqm": 184557.613567006,
      "cost_per_unit": 2145.59580580293,
      "floor_per_unit": 116.25615244661496,
      "yoy": 0.8058803247670943,
      "ratio_national": 1.0390930065152184,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 64.97430387153064,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 10467,
      "floor_total": 1214801,
      "cost_total": 22499311,
      "price_per_tsubo": 61.22648673378603,
      "price_per_sqm": 185209.84918517518,
      "cost_per_unit": 2149.547243718353,
      "floor_per_unit": 116.06009362759148,
      "yoy": 0.35340488293236216,
      "ratio_national": 1.0316935275167676,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 64.24605113723614,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 10521,
      "floor_total": 1217507,
      "cost_total": 22485834,
      "price_per_tsubo": 61.05381338986963,
      "price_per_sqm": 184687.5130902738,
      "cost_per_unit": 2137.2335329341317,
      "floor_per_unit": 115.72160441022716,
      "yoy": -0.2820239297204652,
      "ratio_national": 1.0163990660042013,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 62.36344575063292,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 10268,
      "floor_total": 1183726,
      "cost_total": 21464422,
      "price_per_tsubo": 59.943662303083656,
      "price_per_sqm": 181329.31100609433,
      "cost_per_unit": 2090.4189715621346,
      "floor_per_unit": 115.2830151928321,
      "yoy": -1.8183157204234135,
      "ratio_national": 0.985381080247419,
      "rank_in_national": 28,
      "is_spliced": false,
      "price_per_tsubo_real": 59.8837785245591,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 10717,
      "floor_total": 1221085,
      "cost_total": 22227878,
      "price_per_tsubo": 60.17656167557541,
      "price_per_sqm": 182033.83056871552,
      "cost_per_unit": 2074.0765139497994,
      "floor_per_unit": 113.93906876924513,
      "yoy": 0.38853043598534587,
      "ratio_national": 0.9820217738902681,
      "rank_in_national": 32,
      "is_spliced": false,
      "price_per_tsubo_real": 60.1765616755754,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 11647,
      "floor_total": 1330811,
      "cost_total": 24258963,
      "price_per_tsubo": 60.26027534771655,
      "price_per_sqm": 182287.06405342306,
      "cost_per_unit": 2082.8507770241263,
      "floor_per_unit": 114.26212758650296,
      "yoy": 0.13911341859720316,
      "ratio_national": 0.9768855013020399,
      "rank_in_national": 37,
      "is_spliced": false,
      "price_per_tsubo_real": 54.63306921823804,
      "deflator": 110.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 9935,
      "floor_total": 1122950,
      "cost_total": 20793977,
      "price_per_tsubo": 61.21423146785699,
      "price_per_sqm": 185172.7770604212,
      "cost_per_unit": 2093.002214393558,
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      "ratio_national": 0.9646528291762023,
      "rank_in_national": 38,
      "is_spliced": false,
      "price_per_tsubo_real": 52.45435429979176,
      "deflator": 116.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 8775,
      "floor_total": 983326,
      "cost_total": 23307092,
      "price_per_tsubo": 78.35484026933082,
      "price_per_sqm": 237023.0422057385,
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      "floor_per_unit": 112.05994301994302,
      "yoy": 28.00101935523638,
      "ratio_national": 1.0035288920171161,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 68.25334518234392,
      "deflator": 114.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 8500,
      "floor_total": 948656,
      "cost_total": 23753682,
      "price_per_tsubo": 82.77466691696463,
      "price_per_sqm": 250392.99809414582,
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    },
    {
      "fiscal_year": 2025,
      "units": 7928,
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    }
  ]
}