{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "segment": {
    "segment": "all",
    "building_type": "all",
    "label": "新築住宅すべて"
  },
  "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": 12457,
    "price_per_tsubo": 71.9233253500097,
    "prev_price_per_tsubo": 70.18141327332678,
    "change_vs_prev": 2.482013392775258,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 25716,
      "floor_total": 2529709,
      "cost_total": 41532490,
      "price_per_tsubo": 54.27410430096901,
      "price_per_sqm": 164178.9233465193,
      "cost_per_unit": 1615.0447192409395,
      "floor_per_unit": 98.37101415461191,
      "yoy": null,
      "ratio_national": 1.0283237444618898,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 61.74528361884983,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 29302,
      "floor_total": 2853672,
      "cost_total": 47171063,
      "price_per_tsubo": 54.64455212609227,
      "price_per_sqm": 165299.52636462776,
      "cost_per_unit": 1609.8240051873593,
      "floor_per_unit": 97.38830113985394,
      "yoy": 0.6825498640548711,
      "ratio_national": 1.0232954025339636,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 60.2475767652616,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 27026,
      "floor_total": 2535561,
      "cost_total": 42098659,
      "price_per_tsubo": 54.88699579131009,
      "price_per_sqm": 166032.9173701599,
      "cost_per_unit": 1557.7095759638867,
      "floor_per_unit": 93.8193221342411,
      "yoy": 0.4436739908827203,
      "ratio_national": 1.0106625162880218,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 58.70266929551882,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 28218,
      "floor_total": 2584829,
      "cost_total": 43608129,
      "price_per_tsubo": 55.77131669712387,
      "price_per_sqm": 168707.98416452308,
      "cost_per_unit": 1545.4011269402508,
      "floor_per_unit": 91.60213339003472,
      "yoy": 1.6111665305496459,
      "ratio_national": 1.0149786643518106,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 59.64846705574745,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 30428,
      "floor_total": 2704012,
      "cost_total": 45722665,
      "price_per_tsubo": 55.89824628379977,
      "price_per_sqm": 169091.94559787455,
      "cost_per_unit": 1502.6510122255818,
      "floor_per_unit": 88.86591297489154,
      "yoy": 0.22758936706697153,
      "ratio_national": 1.0145862443156284,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 59.52954875804022,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 30408,
      "floor_total": 2683614,
      "cost_total": 45322607,
      "price_per_tsubo": 55.83031724925045,
      "price_per_sqm": 168886.46057145327,
      "cost_per_unit": 1490.4829978952907,
      "floor_per_unit": 88.25355169692186,
      "yoy": -0.12152265780296378,
      "ratio_national": 1.0058543106091113,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 58.58375367182629,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 29202,
      "floor_total": 2661820,
      "cost_total": 45158533,
      "price_per_tsubo": 56.08366711726187,
      "price_per_sqm": 169652.84279177405,
      "cost_per_unit": 1546.4191836175605,
      "floor_per_unit": 91.15197589206218,
      "yoy": 0.453785470858703,
      "ratio_national": 1.000632618631025,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 57.28668755593653,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 27580,
      "floor_total": 2596367,
      "cost_total": 43463787,
      "price_per_tsubo": 55.33969289654737,
      "price_per_sqm": 167402.32409362774,
      "cost_per_unit": 1575.9168600435098,
      "floor_per_unit": 94.13948513415518,
      "yoy": -1.3265434643547236,
      "ratio_national": 0.9806575884404599,
      "rank_in_national": 34,
      "is_spliced": false,
      "price_per_tsubo_real": 55.28440848805931,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 26070,
      "floor_total": 2441102,
      "cost_total": 41038161,
      "price_per_tsubo": 55.57471267164993,
      "price_per_sqm": 168113.2578646857,
      "cost_per_unit": 1574.1527042577675,
      "floor_per_unit": 93.63644035289605,
      "yoy": 0.4246857233955126,
      "ratio_national": 0.9764711755206383,
      "rank_in_national": 37,
      "is_spliced": false,
      "price_per_tsubo_real": 55.57471267164993,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 29246,
      "floor_total": 2718367,
      "cost_total": 45874368,
      "price_per_tsubo": 55.78754707908094,
      "price_per_sqm": 168757.08099752537,
      "cost_per_unit": 1568.5689666963003,
      "floor_per_unit": 92.94833481501743,
      "yoy": 0.3829698746055543,
      "ratio_national": 0.9780476971834133,
      "rank_in_national": 36,
      "is_spliced": false,
      "price_per_tsubo_real": 50.5780118577343,
      "deflator": 110.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 27607,
      "floor_total": 2511789,
      "cost_total": 42897230,
      "price_per_tsubo": 56.45746277322657,
      "price_per_sqm": 170783.57298324024,
      "cost_per_unit": 1553.853370521969,
      "floor_per_unit": 90.98377223168038,
      "yoy": 1.2008337509372913,
      "ratio_national": 0.9663377682181334,
      "rank_in_national": 40,
      "is_spliced": false,
      "price_per_tsubo_real": 48.37828858031411,
      "deflator": 116.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 26895,
      "floor_total": 2370941,
      "cost_total": 46903614,
      "price_per_tsubo": 65.39745110699086,
      "price_per_sqm": 197826.99780382556,
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      "floor_per_unit": 88.15545640453615,
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      "ratio_national": 0.9591757993376628,
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      "is_spliced": false,
      "price_per_tsubo_real": 56.96642082490493,
      "deflator": 114.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 26986,
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      "cost_total": 47410385,
      "price_per_tsubo": 69.09023354080843,
      "price_per_sqm": 208997.64818941444,
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    {
      "fiscal_year": 2025,
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    }
  ]
}