{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "all",
    "name": "全構造"
  },
  "segment": {
    "segment": "owner",
    "building_type": "detached",
    "label": "持家・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": 3797,
    "price_per_tsubo": 93.87951589030727,
    "prev_price_per_tsubo": 92.09104943829615,
    "change_vs_prev": 1.9420632764201855,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 13748,
      "floor_total": 1663939,
      "cost_total": 30292978,
      "price_per_tsubo": 60.183831103556074,
      "price_per_sqm": 182055.82055592182,
      "cost_per_unit": 2203.446173988944,
      "floor_per_unit": 121.03135001454757,
      "yoy": null,
      "ratio_national": 1.0272092478535706,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 68.54650467375407,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 14864,
      "floor_total": 1786843,
      "cost_total": 32865708,
      "price_per_tsubo": 60.803959189094954,
      "price_per_sqm": 183931.705247747,
      "cost_per_unit": 2211.0944564047363,
      "floor_per_unit": 120.21279601722281,
      "yoy": 1.0303898475187534,
      "ratio_national": 1.028376621376142,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 67.26101680209618,
      "deflator": 90.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 11778,
      "floor_total": 1414323,
      "cost_total": 26855222,
      "price_per_tsubo": 62.77047346000879,
      "price_per_sqm": 189880.4021429334,
      "cost_per_unit": 2280.117337408728,
      "floor_per_unit": 120.08176260825267,
      "yoy": 3.2341878672705215,
      "ratio_national": 1.027806243039182,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 67.20607436831776,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 12174,
      "floor_total": 1455075,
      "cost_total": 28116669,
      "price_per_tsubo": 63.878358994216796,
      "price_per_sqm": 193231.75094067317,
      "cost_per_unit": 2309.5670280926565,
      "floor_per_unit": 119.52316412025628,
      "yoy": 1.764978776070314,
      "ratio_national": 1.0334422930196772,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 68.53901179636995,
      "deflator": 93.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 12118,
      "floor_total": 1427888,
      "cost_total": 27879361,
      "price_per_tsubo": 64.54519738256081,
      "price_per_sqm": 195248.93409006868,
      "cost_per_unit": 2300.6569565934974,
      "floor_per_unit": 117.83198547615117,
      "yoy": 1.0439190969266932,
      "ratio_national": 1.0359249065445428,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 69.03229666584045,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 12170,
      "floor_total": 1432461,
      "cost_total": 28249101,
      "price_per_tsubo": 65.19241752116811,
      "price_per_sqm": 197206.77212154467,
      "cost_per_unit": 2321.2079704190633,
      "floor_per_unit": 117.70427280197207,
      "yoy": 1.002739421139598,
      "ratio_national": 1.0337791645811625,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 68.47943016929423,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 12142,
      "floor_total": 1423378,
      "cost_total": 27983105,
      "price_per_tsubo": 64.99065510212326,
      "price_per_sqm": 196596.44170417133,
      "cost_per_unit": 2304.6536814363367,
      "floor_per_unit": 117.22763959808928,
      "yoy": -0.30948755502024916,
      "ratio_national": 1.0166514878593667,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 66.24939358014603,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 11782,
      "floor_total": 1373719,
      "cost_total": 26714874,
      "price_per_tsubo": 64.28808462317258,
      "price_per_sqm": 194471.16914012254,
      "cost_per_unit": 2267.431166185707,
      "floor_per_unit": 116.59472076048209,
      "yoy": -1.0810330775196664,
      "ratio_national": 0.9917972789450764,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 64.1597650929866,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 12204,
      "floor_total": 1412994,
      "cost_total": 27633796,
      "price_per_tsubo": 64.65103636592937,
      "price_per_sqm": 195569.09654251894,
      "cost_per_unit": 2264.3228449688627,
      "floor_per_unit": 115.78121927236971,
      "yoy": 0.5645707830373992,
      "ratio_national": 0.9918390700393834,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 64.65103636592937,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 13230,
      "floor_total": 1532455,
      "cost_total": 30084324,
      "price_per_tsubo": 64.89747329348008,
      "price_per_sqm": 196314.56714879067,
      "cost_per_unit": 2273.9473922902494,
      "floor_per_unit": 115.83182161753591,
      "yoy": 0.3811801657066294,
      "ratio_national": 0.9826157276746701,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 59.703287298509736,
      "deflator": 108.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 11264,
      "floor_total": 1287995,
      "cost_total": 25929914,
      "price_per_tsubo": 66.55216084073308,
      "price_per_sqm": 201319.98959623292,
      "cost_per_unit": 2302.016512784091,
      "floor_per_unit": 114.34614701704545,
      "yoy": 2.5496948698914057,
      "ratio_national": 0.9713813067309451,
      "rank_in_national": 31,
      "is_spliced": false,
      "price_per_tsubo_real": 57.7208680318587,
      "deflator": 115.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 9843,
      "floor_total": 1114846,
      "cost_total": 27814692,
      "price_per_tsubo": 82.47733827513396,
      "price_per_sqm": 249493.58027924932,
      "cost_per_unit": 2825.8348064614447,
      "floor_per_unit": 113.26282637407294,
      "yoy": 23.92886607019664,
      "ratio_national": 1.0051115518521037,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 71.78184358149169,
      "deflator": 114.9,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 9491,
      "floor_total": 1073049,
      "cost_total": 28300073,
      "price_per_tsubo": 87.18529938769805,
      "price_per_sqm": 263735.14163845265,
      "cost_per_unit": 2981.779896744284,
      "floor_per_unit": 113.05963544410494,
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      "is_spliced": true,
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      "deflator": 119.3,
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    },
    {
      "fiscal_year": 2025,
      "units": 8900,
      "floor_total": 1000993,
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      "price_per_tsubo": 91.77566672907803,
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      "deflator": 122.6,
      "deflator_provisional": true
    }
  ]
}