{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "all",
    "name": "全構造"
  },
  "segment": {
    "segment": "company",
    "building_type": "detached",
    "label": "給与住宅・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": 41,
    "price_per_tsubo": 123.82668986854762,
    "prev_price_per_tsubo": 100.48664187734882,
    "change_vs_prev": 23.227015606399732,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 20,
      "floor_total": 2783,
      "cost_total": 51139,
      "price_per_tsubo": 60.74552454545455,
      "price_per_sqm": 183754.94071146246,
      "cost_per_unit": 2556.95,
      "floor_per_unit": 139.15,
      "yoy": null,
      "ratio_national": 0.9398756184670088,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 69.18624663491407,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 19,
      "floor_total": 7080,
      "cost_total": 141886,
      "price_per_tsubo": 66.24933897457628,
      "price_per_sqm": 200403.9548022599,
      "cost_per_unit": 7467.684210526316,
      "floor_per_unit": 372.63157894736844,
      "yoy": 9.060444321298666,
      "ratio_national": 0.9015608336656854,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 73.28466700727463,
      "deflator": 90.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 19,
      "floor_total": 2918,
      "cost_total": 64743,
      "price_per_tsubo": 73.34707401302262,
      "price_per_sqm": 221874.57162440027,
      "cost_per_unit": 3407.5263157894738,
      "floor_per_unit": 153.57894736842104,
      "yoy": 10.713669220413147,
      "ratio_national": 1.0246243262765904,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 78.53005782978867,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 28,
      "floor_total": 4057,
      "cost_total": 89172,
      "price_per_tsubo": 72.66056344096623,
      "price_per_sqm": 219797.88020704954,
      "cost_per_unit": 3184.714285714286,
      "floor_per_unit": 144.89285714285714,
      "yoy": -0.9359754036466494,
      "ratio_national": 1.045629677311289,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 77.96197794095089,
      "deflator": 93.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 31,
      "floor_total": 5185,
      "cost_total": 156463,
      "price_per_tsubo": 99.75579956991321,
      "price_per_sqm": 301760.8486017358,
      "cost_per_unit": 5047.193548387097,
      "floor_per_unit": 167.25806451612902,
      "yoy": 37.2901541714038,
      "ratio_national": 1.4656733806176503,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 106.69069472717989,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 20,
      "floor_total": 2209,
      "cost_total": 48627,
      "price_per_tsubo": 72.77077878225442,
      "price_per_sqm": 220131.28112267994,
      "cost_per_unit": 2431.35,
      "floor_per_unit": 110.45,
      "yoy": -27.051079640483966,
      "ratio_national": 1.0079002495146687,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 76.43989367883867,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 17,
      "floor_total": 3131,
      "cost_total": 63816,
      "price_per_tsubo": 67.37856743532417,
      "price_per_sqm": 203819.8658575535,
      "cost_per_unit": 3753.8823529411766,
      "floor_per_unit": 184.1764705882353,
      "yoy": -7.409857963819366,
      "ratio_national": 0.8741476563127147,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 68.6835549799431,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 26,
      "floor_total": 3964,
      "cost_total": 91587,
      "price_per_tsubo": 76.37926052724521,
      "price_per_sqm": 231046.92230070636,
      "cost_per_unit": 3522.576923076923,
      "floor_per_unit": 152.46153846153845,
      "yoy": 13.358391895999699,
      "ratio_national": 0.9355666322583341,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 76.22680691341837,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 34,
      "floor_total": 5002,
      "cost_total": 113942,
      "price_per_tsubo": 75.30354341863254,
      "price_per_sqm": 227792.88284686126,
      "cost_per_unit": 3351.235294117647,
      "floor_per_unit": 147.11764705882354,
      "yoy": -1.4083890066321714,
      "ratio_national": 0.9671788822791956,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 75.30354341863254,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 66,
      "floor_total": 9648,
      "cost_total": 217647,
      "price_per_tsubo": 74.57455183768657,
      "price_per_sqm": 225587.68656716417,
      "cost_per_unit": 3297.681818181818,
      "floor_per_unit": 146.1818181818182,
      "yoy": -0.9680707545105971,
      "ratio_national": 0.9849662241154358,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 68.60584345693337,
      "deflator": 108.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 71,
      "floor_total": 13106,
      "cost_total": 277837,
      "price_per_tsubo": 70.0801752044865,
      "price_per_sqm": 211992.21730505113,
      "cost_per_unit": 3913.1971830985917,
      "floor_per_unit": 184.59154929577466,
      "yoy": -6.026689430172105,
      "ratio_national": 0.7655930177002314,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 60.780724375096696,
      "deflator": 115.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 58,
      "floor_total": 8997,
      "cost_total": 274556,
      "price_per_tsubo": 100.88079129043015,
      "price_per_sqm": 305163.94353673444,
      "cost_per_unit": 4733.724137931034,
      "floor_per_unit": 155.1206896551724,
      "yoy": 43.950540928401985,
      "ratio_national": 0.9124868093442514,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 87.79877396904277,
      "deflator": 114.9,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 84,
      "floor_total": 16497,
      "cost_total": 627819,
      "price_per_tsubo": 125.80698139116204,
      "price_per_sqm": 380565.557374068,
      "cost_per_unit": 7474.035714285715,
      "floor_per_unit": 196.39285714285714,
      "yoy": 24.70855926275477,
      "ratio_national": 1.1202109914124805,
      "rank_in_national": 7,
      "is_spliced": true,
      "price_per_tsubo_real": 105.45430124992627,
      "deflator": 119.3,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 87,
      "floor_total": 13970,
      "cost_total": 570515,
      "price_per_tsubo": 135.00377822834645,
      "price_per_sqm": 408385.82677165355,
      "cost_per_unit": 6557.64367816092,
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      "is_spliced": false,
      "price_per_tsubo_real": 110.11727424824345,
      "deflator": 122.6,
      "deflator_provisional": true
    }
  ]
}