{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "src",
    "name": "鉄骨鉄筋コンクリート造"
  },
  "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": 24,
    "price_per_tsubo": 64.6785,
    "prev_price_per_tsubo": 105.90507566867991,
    "change_vs_prev": -38.92785629808313,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 141,
      "floor_total": 7712,
      "cost_total": 146900,
      "price_per_tsubo": 62.969469787344394,
      "price_per_sqm": 190482.36514522822,
      "cost_per_unit": 1041.8439716312057,
      "floor_per_unit": 54.695035460992905,
      "yoy": null,
      "ratio_national": 0.9725527668613327,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 71.71921388080227,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 42,
      "floor_total": 2677,
      "cost_total": 45000,
      "price_per_tsubo": 55.5698729921554,
      "price_per_sqm": 168098.61785580873,
      "cost_per_unit": 1071.4285714285713,
      "floor_per_unit": 63.73809523809524,
      "yoy": -11.751086391831366,
      "ratio_national": 0.7597867197319407,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 61.812984418415354,
      "deflator": 89.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 200,
      "floor_total": 14476,
      "cost_total": 274800,
      "price_per_tsubo": 62.75428930643824,
      "price_per_sqm": 189831.44515059408,
      "cost_per_unit": 1374,
      "floor_per_unit": 72.38,
      "yoy": 12.928617481808956,
      "ratio_national": 0.8299619132425974,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 67.76921091408018,
      "deflator": 92.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 156,
      "floor_total": 8642,
      "cost_total": 148950,
      "price_per_tsubo": 56.97725300856283,
      "price_per_sqm": 172355.93612589678,
      "cost_per_unit": 954.8076923076923,
      "floor_per_unit": 55.3974358974359,
      "yoy": -9.205803080113462,
      "ratio_national": 0.7451785184312156,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 61.20005693723183,
      "deflator": 93.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 35,
      "floor_total": 2120,
      "cost_total": 24020,
      "price_per_tsubo": 37.455224433962265,
      "price_per_sqm": 113301.88679245283,
      "cost_per_unit": 686.2857142857143,
      "floor_per_unit": 60.57142857142857,
      "yoy": -34.26284621279776,
      "ratio_national": 0.5001270995121374,
      "rank_in_national": 19,
      "is_spliced": false,
      "price_per_tsubo_real": 40.274434875228245,
      "deflator": 93,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 69,
      "floor_total": 2353,
      "cost_total": 78850,
      "price_per_tsubo": 110.77838567785804,
      "price_per_sqm": 335104.1223969401,
      "cost_per_unit": 1142.7536231884058,
      "floor_per_unit": 34.10144927536232,
      "yoy": 195.76217297315273,
      "ratio_national": 1.2854566250934838,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 116.60882702932425,
      "deflator": 95,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 0,
      "floor_total": 0,
      "cost_total": 0,
      "price_per_tsubo": null,
      "price_per_sqm": null,
      "cost_per_unit": null,
      "floor_per_unit": null,
      "yoy": null,
      "ratio_national": null,
      "rank_in_national": null,
      "is_spliced": false,
      "price_per_tsubo_real": null,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 235,
      "floor_total": 22291,
      "cost_total": 493755,
      "price_per_tsubo": 73.22463511955497,
      "price_per_sqm": 221504.19451796688,
      "cost_per_unit": 2101.0851063829787,
      "floor_per_unit": 94.85531914893618,
      "yoy": null,
      "ratio_national": 0.8920630613654155,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 73.07847816322851,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 285,
      "floor_total": 14740,
      "cost_total": 398500,
      "price_per_tsubo": 89.37295217096337,
      "price_per_sqm": 270352.7815468114,
      "cost_per_unit": 1398.2456140350878,
      "floor_per_unit": 51.719298245614034,
      "yoy": 22.053120544804084,
      "ratio_national": 0.9780163445042591,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 89.37295217096337,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 60,
      "floor_total": 1613,
      "cost_total": 60000,
      "price_per_tsubo": 122.96800991940484,
      "price_per_sqm": 371977.6813391197,
      "cost_per_unit": 1000,
      "floor_per_unit": 26.883333333333333,
      "yoy": 37.589737087543874,
      "ratio_national": 1.2981759310483036,
      "rank_in_national": 1,
      "is_spliced": false,
      "price_per_tsubo_real": 117.33588732767637,
      "deflator": 104.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 0,
      "floor_total": 0,
      "cost_total": 0,
      "price_per_tsubo": null,
      "price_per_sqm": null,
      "cost_per_unit": null,
      "floor_per_unit": null,
      "yoy": null,
      "ratio_national": null,
      "rank_in_national": null,
      "is_spliced": false,
      "price_per_tsubo_real": null,
      "deflator": 111.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 52,
      "floor_total": 3748,
      "cost_total": 140000,
      "price_per_tsubo": 123.48201707577375,
      "price_per_sqm": 373532.5506937033,
      "cost_per_unit": 2692.3076923076924,
      "floor_per_unit": 72.07692307692308,
      "yoy": null,
      "ratio_national": 1.1750699217845813,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 108.5079236166729,
      "deflator": 113.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 330,
      "floor_total": 23774,
      "cost_total": 752000,
      "price_per_tsubo": 104.56608395726424,
      "price_per_sqm": 316311.93741061667,
      "cost_per_unit": 2278.787878787879,
      "floor_per_unit": 72.04242424242425,
      "yoy": -15.31877561321492,
      "ratio_national": 0.7747378456049812,
      "rank_in_national": 8,
      "is_spliced": true,
      "price_per_tsubo_real": 87.64969317457188,
      "deflator": 119.3,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 50,
      "floor_total": 1870,
      "cost_total": 58130,
      "price_per_tsubo": 102.762338342246,
      "price_per_sqm": 310855.614973262,
      "cost_per_unit": 1162.6,
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      "yoy": -1.7249815109796285,
      "ratio_national": 0.8923721388184812,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 83.81919930036379,
      "deflator": 122.6,
      "deflator_provisional": true
    }
  ]
}