{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "condo",
    "building_type": "detached",
    "label": "分譲住宅・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": 32,
    "price_per_tsubo": 121.38151404255319,
    "prev_price_per_tsubo": 98.84468772511848,
    "change_vs_prev": 22.800240292233383,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 286,
      "floor_total": 33854,
      "cost_total": 709541,
      "price_per_tsubo": 69.28556573492054,
      "price_per_sqm": 209588.527205057,
      "cost_per_unit": 2480.9125874125875,
      "floor_per_unit": 118.37062937062937,
      "yoy": null,
      "ratio_national": 1.0120723182522684,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 78.9129450283833,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 335,
      "floor_total": 38925,
      "cost_total": 824460,
      "price_per_tsubo": 70.01905262427746,
      "price_per_sqm": 211807.3217726397,
      "cost_per_unit": 2461.0746268656717,
      "floor_per_unit": 116.19402985074628,
      "yoy": 1.0586431410016583,
      "ratio_national": 0.9968471838099633,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 77.54047909665277,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 339,
      "floor_total": 39053,
      "cost_total": 822129,
      "price_per_tsubo": 69.59224200215093,
      "price_per_sqm": 210516.22154507975,
      "cost_per_unit": 2425.1592920353983,
      "floor_per_unit": 115.20058997050147,
      "yoy": -0.6095635489625995,
      "ratio_national": 0.9601808494065233,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 74.3506858997339,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 361,
      "floor_total": 42475,
      "cost_total": 897324,
      "price_per_tsubo": 69.83789772713361,
      "price_per_sqm": 211259.32901706887,
      "cost_per_unit": 2485.6620498614957,
      "floor_per_unit": 117.65927977839335,
      "yoy": 0.3529929743822491,
      "ratio_national": 0.939779186326365,
      "rank_in_national": 28,
      "is_spliced": false,
      "price_per_tsubo_real": 74.77290977209165,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 414,
      "floor_total": 49524,
      "cost_total": 1085725,
      "price_per_tsubo": 72.47352491216381,
      "price_per_sqm": 219232.0894919635,
      "cost_per_unit": 2622.524154589372,
      "floor_per_unit": 119.6231884057971,
      "yoy": 3.7739211385313443,
      "ratio_national": 0.96773179782078,
      "rank_in_national": 27,
      "is_spliced": false,
      "price_per_tsubo_real": 77.5947804198756,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 400,
      "floor_total": 47657,
      "cost_total": 988743,
      "price_per_tsubo": 68.58544855886859,
      "price_per_sqm": 207470.67587133055,
      "cost_per_unit": 2471.8575,
      "floor_per_unit": 119.1425,
      "yoy": -5.36482302745378,
      "ratio_national": 0.9022712180412382,
      "rank_in_national": 38,
      "is_spliced": false,
      "price_per_tsubo_real": 72.04353840217289,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 538,
      "floor_total": 62225,
      "cost_total": 1347006,
      "price_per_tsubo": 71.56157436303737,
      "price_per_sqm": 216473.44314985938,
      "cost_per_unit": 2503.728624535316,
      "floor_per_unit": 115.65985130111524,
      "yoy": 4.339296259926462,
      "ratio_national": 0.9006323102514566,
      "rank_in_national": 39,
      "is_spliced": false,
      "price_per_tsubo_real": 72.94757835172005,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 448,
      "floor_total": 50479,
      "cost_total": 1138943,
      "price_per_tsubo": 74.58757859644605,
      "price_per_sqm": 225627.09245428792,
      "cost_per_unit": 2542.2834821428573,
      "floor_per_unit": 112.67633928571429,
      "yoy": 4.228532226048487,
      "ratio_national": 0.9036389618842997,
      "rank_in_national": 40,
      "is_spliced": false,
      "price_per_tsubo_real": 74.43870119405793,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 302,
      "floor_total": 33004,
      "cost_total": 790994,
      "price_per_tsubo": 79.22858002848139,
      "price_per_sqm": 239666.10107865714,
      "cost_per_unit": 2619.1854304635763,
      "floor_per_unit": 109.28476821192054,
      "yoy": 6.22221758551158,
      "ratio_national": 0.9258598319041255,
      "rank_in_national": 34,
      "is_spliced": false,
      "price_per_tsubo_real": 79.22858002848139,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 348,
      "floor_total": 37836,
      "cost_total": 910145,
      "price_per_tsubo": 79.52078019743101,
      "price_per_sqm": 240550.00528597104,
      "cost_per_unit": 2615.359195402299,
      "floor_per_unit": 108.72413793103448,
      "yoy": 0.36880652012767356,
      "ratio_national": 0.9009223172808558,
      "rank_in_national": 36,
      "is_spliced": false,
      "price_per_tsubo_real": 73.42638984065651,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 261,
      "floor_total": 28740,
      "cost_total": 697921,
      "price_per_tsubo": 80.27767093215031,
      "price_per_sqm": 242839.59638135004,
      "cost_per_unit": 2674.0268199233715,
      "floor_per_unit": 110.11494252873563,
      "yoy": 0.9518150260097169,
      "ratio_national": 0.8664644511779778,
      "rank_in_national": 44,
      "is_spliced": false,
      "price_per_tsubo_real": 68.96707124755181,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 135,
      "floor_total": 14326,
      "cost_total": 375869,
      "price_per_tsubo": 86.73349026315789,
      "price_per_sqm": 262368.4210526316,
      "cost_per_unit": 2784.214814814815,
      "floor_per_unit": 106.11851851851851,
      "yoy": 8.041861773075043,
      "ratio_national": 0.882183057219905,
      "rank_in_national": 40,
      "is_spliced": false,
      "price_per_tsubo_real": 74.13118825910931,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 148,
      "floor_total": 15203,
      "cost_total": 441171,
      "price_per_tsubo": 95.92966388804841,
      "price_per_sqm": 290186.8052358087,
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      "floor_per_unit": 102.72297297297297,
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      "ratio_national": 0.9794608027344165,
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      "is_spliced": true,
      "price_per_tsubo_real": 79.01949249427382,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 104,
      "floor_total": 10752,
      "cost_total": 342591,
      "price_per_tsubo": 105.33239414899553,
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    }
  ]
}