{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "segment": {
    "segment": "all",
    "building_type": "apartment",
    "label": "共同住宅"
  },
  "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": 3260,
    "price_per_tsubo": 81.27308514170402,
    "prev_price_per_tsubo": 73.50132106120549,
    "change_vs_prev": 10.573638634368066,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 1897,
      "floor_total": 68060,
      "cost_total": 1164543,
      "price_per_tsubo": 56.56383490993241,
      "price_per_sqm": 171105.34822215693,
      "cost_per_unit": 613.8866631523458,
      "floor_per_unit": 35.8777016341592,
      "yoy": null,
      "ratio_national": 1.1134944975949064,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 64.35021036397316,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 2217,
      "floor_total": 74455,
      "cost_total": 1382571,
      "price_per_tsubo": 61.38592956940433,
      "price_per_sqm": 185692.1630515076,
      "cost_per_unit": 623.6224627875507,
      "floor_per_unit": 33.58367162832657,
      "yoy": 8.525049030268605,
      "ratio_national": 1.172015809448389,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 67.68018695634436,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 2710,
      "floor_total": 83166,
      "cost_total": 1537004,
      "price_per_tsubo": 61.09482785224731,
      "price_per_sqm": 184811.5816559652,
      "cost_per_unit": 567.1601476014761,
      "floor_per_unit": 30.688560885608855,
      "yoy": -0.4742157025216853,
      "ratio_national": 1.1385436777562998,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 65.3420618740613,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 3645,
      "floor_total": 109214,
      "cost_total": 2083373,
      "price_per_tsubo": 63.061453931455674,
      "price_per_sqm": 190760.61677074368,
      "cost_per_unit": 571.5700960219478,
      "floor_per_unit": 29.962688614540465,
      "yoy": 3.218973108434775,
      "ratio_national": 1.1608070523750773,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 67.44540527428414,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 4619,
      "floor_total": 133118,
      "cost_total": 2556938,
      "price_per_tsubo": 63.49779947880828,
      "price_per_sqm": 192080.56010456887,
      "cost_per_unit": 553.5696038103486,
      "floor_per_unit": 28.819657934617883,
      "yoy": 0.6919370235689337,
      "ratio_national": 1.1632957849795342,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 67.62278964729316,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 5048,
      "floor_total": 146819,
      "cost_total": 2714305,
      "price_per_tsubo": 61.11553903752239,
      "price_per_sqm": 184874.2328990117,
      "cost_per_unit": 537.699088748019,
      "floor_per_unit": 29.08458795562599,
      "yoy": -3.7517212578066506,
      "ratio_national": 1.1060923425013867,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 64.12963172877481,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 4356,
      "floor_total": 131335,
      "cost_total": 2408120,
      "price_per_tsubo": 60.61399485894849,
      "price_per_sqm": 183357.06399664978,
      "cost_per_unit": 552.8282828282828,
      "floor_per_unit": 30.15036730945822,
      "yoy": -0.8206491940878968,
      "ratio_national": 1.0869730311126808,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 61.91419291005974,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 3191,
      "floor_total": 102988,
      "cost_total": 1872044,
      "price_per_tsubo": 60.0903438726842,
      "price_per_sqm": 181773.0220996621,
      "cost_per_unit": 586.6637417737386,
      "floor_per_unit": 32.27452209338765,
      "yoy": -0.8639110282746554,
      "ratio_national": 1.089276512774895,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 60.030313559125084,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 3361,
      "floor_total": 108100,
      "cost_total": 1865268,
      "price_per_tsubo": 57.041482902127655,
      "price_per_sqm": 172550.23126734505,
      "cost_per_unit": 554.9741148467718,
      "floor_per_unit": 32.16304671228801,
      "yoy": -5.073795179166041,
      "ratio_national": 1.0132442689062546,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 57.04148290212765,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 3917,
      "floor_total": 124046,
      "cost_total": 2233097,
      "price_per_tsubo": 59.51138877214905,
      "price_per_sqm": 180021.68550376472,
      "cost_per_unit": 570.1039060505489,
      "floor_per_unit": 31.668623946898137,
      "yoy": 4.330016935673431,
      "ratio_national": 1.0622964698275426,
      "rank_in_national": 14,
      "is_spliced": false,
      "price_per_tsubo_real": 53.95411493395199,
      "deflator": 110.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 3778,
      "floor_total": 123132,
      "cost_total": 2254593,
      "price_per_tsubo": 60.530252034158465,
      "price_per_sqm": 183103.74232530943,
      "cost_per_unit": 596.7689253573319,
      "floor_per_unit": 32.591847538380094,
      "yoy": 1.7120475307849548,
      "ratio_national": 1.0398136850089552,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 51.86825367108694,
      "deflator": 116.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 4455,
      "floor_total": 147130,
      "cost_total": 3170861,
      "price_per_tsubo": 71.24448165017333,
      "price_per_sqm": 215514.2391082716,
      "cost_per_unit": 711.7533108866443,
      "floor_per_unit": 33.02581369248036,
      "yoy": 17.70061953478832,
      "ratio_national": 1.07275009435556,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 62.05965300537747,
      "deflator": 114.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 5680,
      "floor_total": 185192,
      "cost_total": 4189525,
      "price_per_tsubo": 74.78557307956068,
      "price_per_sqm": 226226.02488228434,
      "cost_per_unit": 737.5924295774648,
      "floor_per_unit": 32.60422535211268,
      "yoy": 4.9703378386201535,
      "ratio_national": 1.0597829182486211,
      "rank_in_national": 12,
      "is_spliced": true,
      "price_per_tsubo_real": 62.95081909053929,
      "deflator": 118.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 6423,
      "floor_total": 206517,
      "cost_total": 4731775,
      "price_per_tsubo": 75.74318083862346,
      "price_per_sqm": 229122.78408072944,
      "cost_per_unit": 736.6923555970731,
      "floor_per_unit": 32.15273236805231,
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      "ratio_national": 1.0298252991247012,
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      "is_spliced": false,
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      "deflator": 122.3,
      "deflator_provisional": true
    }
  ]
}