{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "company",
    "building_type": "all",
    "label": "給与住宅"
  },
  "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": 18,
    "price_per_tsubo": 127.84846233753638,
    "prev_price_per_tsubo": null,
    "change_vs_prev": null,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2013,
      "units": 81,
      "floor_total": 3569,
      "cost_total": 68884,
      "price_per_tsubo": 63.80387737741664,
      "price_per_sqm": 193006.44438217988,
      "cost_per_unit": 850.4197530864197,
      "floor_per_unit": 44.06172839506173,
      "yoy": null,
      "ratio_national": 1.0820951442682631,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 70.65767151430414,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 16,
      "floor_total": 1217,
      "cost_total": 29145,
      "price_per_tsubo": 79.16783036154479,
      "price_per_sqm": 239482.3336072309,
      "cost_per_unit": 1821.5625,
      "floor_per_unit": 76.0625,
      "yoy": 24.079967575083792,
      "ratio_national": 1.117263093988366,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 84.58101534353077,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 149,
      "floor_total": 8853,
      "cost_total": 239596,
      "price_per_tsubo": 89.46730609284988,
      "price_per_sqm": 270638.2017395233,
      "cost_per_unit": 1608.0268456375838,
      "floor_per_unit": 59.41610738255034,
      "yoy": 13.009672848515997,
      "ratio_national": 1.2141857290216838,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 95.7894069516594,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 31,
      "floor_total": 2833,
      "cost_total": 81694,
      "price_per_tsubo": 95.32764146134839,
      "price_per_sqm": 288365.690081186,
      "cost_per_unit": 2635.2903225806454,
      "floor_per_unit": 91.38709677419355,
      "yoy": 6.550253522126415,
      "ratio_national": 1.271981760243969,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 102.06385595433447,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 99,
      "floor_total": 7333,
      "cost_total": 51304,
      "price_per_tsubo": 23.128358129005864,
      "price_per_sqm": 69963.18014455203,
      "cost_per_unit": 518.2222222222222,
      "floor_per_unit": 74.07070707070707,
      "yoy": -75.73803592068991,
      "ratio_national": 0.3439882063344303,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 24.294493832989353,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 268,
      "floor_total": 20201,
      "cost_total": 336273,
      "price_per_tsubo": 55.02935105539329,
      "price_per_sqm": 166463.54140884115,
      "cost_per_unit": 1254.75,
      "floor_per_unit": 75.3768656716418,
      "yoy": 137.93020995459068,
      "ratio_national": 0.7533825018426166,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 56.09515907787288,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 18,
      "floor_total": 2220,
      "cost_total": 64154,
      "price_per_tsubo": 95.53137462162162,
      "price_per_sqm": 288981.98198198195,
      "cost_per_unit": 3564.1111111111113,
      "floor_per_unit": 123.33333333333333,
      "yoy": 73.6007653905612,
      "ratio_national": 1.1183105795062307,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 95.34069323515132,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 251,
      "floor_total": 11443,
      "cost_total": 302212,
      "price_per_tsubo": 87.30659857380057,
      "price_per_sqm": 264102.0711351918,
      "cost_per_unit": 1204.03187250996,
      "floor_per_unit": 45.58964143426295,
      "yoy": -8.609502459686723,
      "ratio_national": 0.93881318391651,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 87.30659857380057,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 72,
      "floor_total": 4956,
      "cost_total": 142465,
      "price_per_tsubo": 95.02812194309926,
      "price_per_sqm": 287459.6448748991,
      "cost_per_unit": 1978.6805555555557,
      "floor_per_unit": 68.83333333333333,
      "yoy": 8.844146370874428,
      "ratio_national": 1.0412736773763367,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 87.74526495207688,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 50,
      "floor_total": 3983,
      "cost_total": 133346,
      "price_per_tsubo": 110.67383212151644,
      "price_per_sqm": 334787.8483555109,
      "cost_per_unit": 2666.92,
      "floor_per_unit": 79.66,
      "yoy": 16.46429484083194,
      "ratio_national": 1.1022663082020687,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 95.08061178824437,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 19,
      "floor_total": 1838,
      "cost_total": 66350,
      "price_per_tsubo": 119.33578155603917,
      "price_per_sqm": 360990.20674646355,
      "cost_per_unit": 3492.1052631578946,
      "floor_per_unit": 96.73684210526316,
      "yoy": 7.826555987518513,
      "ratio_national": 1.1104708547925997,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 101.99639449234117,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 100,
      "floor_total": 6331,
      "cost_total": 289010,
      "price_per_tsubo": 150.90923517611753,
      "price_per_sqm": 456499.76307060494,
      "cost_per_unit": 2890.1,
      "floor_per_unit": 63.31,
      "yoy": 26.457658556710186,
      "ratio_national": 1.1958775570391942,
      "rank_in_national": 2,
      "is_spliced": true,
      "price_per_tsubo_real": 124.30744248444607,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 137,
      "floor_total": 12676,
      "cost_total": 417283,
      "price_per_tsubo": 108.82375895945094,
      "price_per_sqm": 329191.38529504574,
      "cost_per_unit": 3045.8613138686133,
      "floor_per_unit": 92.52554744525547,
      "yoy": -27.887939507181947,
      "ratio_national": 0.8179216136563553,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 87.54928315321878,
      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}