{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "all",
    "name": "全構造"
  },
  "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": 4250,
    "price_per_tsubo": 53.808820549880195,
    "prev_price_per_tsubo": 54.37455548008774,
    "change_vs_prev": -1.0404405612377303,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 8908,
      "floor_total": 910272,
      "cost_total": 13875116,
      "price_per_tsubo": 50.389575557240036,
      "price_per_sqm": 152428.2412289953,
      "cost_per_unit": 1557.6017063313875,
      "floor_per_unit": 102.1859003143242,
      "yoy": null,
      "ratio_national": 1.0262320538957426,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 57.39131612441918,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 10308,
      "floor_total": 1051594,
      "cost_total": 15886781,
      "price_per_tsubo": 49.941671179171806,
      "price_per_sqm": 151073.33248382932,
      "cost_per_unit": 1541.2088668994954,
      "floor_per_unit": 102.01726814124952,
      "yoy": -0.8888830142247062,
      "ratio_national": 1.0263440250943376,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 55.245211481384736,
      "deflator": 90.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 10238,
      "floor_total": 1055527,
      "cost_total": 15751077,
      "price_per_tsubo": 49.33057405052642,
      "price_per_sqm": 149224.76639631198,
      "cost_per_unit": 1538.4915999218597,
      "floor_per_unit": 103.0989451064661,
      "yoy": -1.223621705515221,
      "ratio_national": 1.0075232528591689,
      "rank_in_national": 19,
      "is_spliced": false,
      "price_per_tsubo_real": 52.81646043953578,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 10197,
      "floor_total": 1061034,
      "cost_total": 16070891,
      "price_per_tsubo": 50.070959798545566,
      "price_per_sqm": 151464.4299805661,
      "cost_per_unit": 1576.0410905168187,
      "floor_per_unit": 104.05354516034127,
      "yoy": 1.5008658672019726,
      "ratio_national": 1.0146536122790795,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 53.724205792430865,
      "deflator": 93.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 10999,
      "floor_total": 1150799,
      "cost_total": 17438607,
      "price_per_tsubo": 50.09421509275729,
      "price_per_sqm": 151534.77714179453,
      "cost_per_unit": 1585.472042912992,
      "floor_per_unit": 104.62760250931903,
      "yoy": 0.04644467432877164,
      "ratio_national": 1.01878488419788,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 53.57670063396501,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 10946,
      "floor_total": 1139446,
      "cost_total": 17028437,
      "price_per_tsubo": 49.40333877185053,
      "price_per_sqm": 149444.87935365082,
      "cost_per_unit": 1555.676685547232,
      "floor_per_unit": 104.0970217431025,
      "yoy": -1.3791538995620467,
      "ratio_national": 0.9962777992637628,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 51.89426341580937,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 11419,
      "floor_total": 1186750,
      "cost_total": 18303958,
      "price_per_tsubo": 50.98718459390773,
      "price_per_sqm": 154236.0058984622,
      "cost_per_unit": 1602.9387862334706,
      "floor_per_unit": 103.92766441895087,
      "yoy": 3.205948952906912,
      "ratio_national": 1.0192753424142345,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 51.974703969324906,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 11498,
      "floor_total": 1191909,
      "cost_total": 18472328,
      "price_per_tsubo": 51.23347267209158,
      "price_per_sqm": 154981.02623606334,
      "cost_per_unit": 1606.5687945729692,
      "floor_per_unit": 103.66228909375543,
      "yoy": 0.48303917963981036,
      "ratio_national": 1.0227829280491636,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 51.1312102515884,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 9595,
      "floor_total": 993560,
      "cost_total": 15235579,
      "price_per_tsubo": 50.69208170861347,
      "price_per_sqm": 153343.3209871573,
      "cost_per_unit": 1587.866492965086,
      "floor_per_unit": 103.54976550286608,
      "yoy": -1.0567133852962929,
      "ratio_national": 1.0114787588236593,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 50.692081708613465,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 11016,
      "floor_total": 1132757,
      "cost_total": 17422341,
      "price_per_tsubo": 50.84462126863043,
      "price_per_sqm": 153804.75247559714,
      "cost_per_unit": 1581.5487472766883,
      "floor_per_unit": 102.82834059549745,
      "yoy": 0.30091397882174853,
      "ratio_national": 1.0136817537348042,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 46.7751805599176,
      "deflator": 108.7,
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    },
    {
      "fiscal_year": 2022,
      "units": 10833,
      "floor_total": 1101882,
      "cost_total": 17248963,
      "price_per_tsubo": 51.7491431893524,
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      "yoy": 1.778992346000674,
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      "is_spliced": false,
      "price_per_tsubo_real": 44.88217102285551,
      "deflator": 115.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 10721,
      "floor_total": 1078180,
      "cost_total": 17179999,
      "price_per_tsubo": 52.675312929390266,
      "price_per_sqm": 159342.58658109035,
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      "floor_per_unit": 100.56711127693312,
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      "ratio_national": 0.9509031336809591,
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      "is_spliced": false,
      "price_per_tsubo_real": 45.844484707911455,
      "deflator": 114.9,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
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      "price_per_tsubo": 53.40158859377549,
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    {
      "fiscal_year": 2025,
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    }
  ]
}