{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "owner",
    "building_type": "all",
    "label": "持家"
  },
  "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": 359,
    "price_per_tsubo": 131.62242587579618,
    "prev_price_per_tsubo": 129.1645387934135,
    "change_vs_prev": 1.9029116701402558,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 1913,
      "floor_total": 250624,
      "cost_total": 5766405,
      "price_per_tsubo": 76.06024955690597,
      "price_per_sqm": 230081.9155388151,
      "cost_per_unit": 3014.32566649242,
      "floor_per_unit": 131.01097752221642,
      "yoy": null,
      "ratio_national": 1.0199788825671432,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 86.62898582791114,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 1842,
      "floor_total": 239507,
      "cost_total": 5619249,
      "price_per_tsubo": 77.55955839165452,
      "price_per_sqm": 234617.31807421078,
      "cost_per_unit": 3050.6237785016287,
      "floor_per_unit": 130.02551574375678,
      "yoy": 1.9712120897352747,
      "ratio_national": 1.0174347974105686,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 85.89098382243026,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 1512,
      "floor_total": 197228,
      "cost_total": 4760019,
      "price_per_tsubo": 79.78392119785224,
      "price_per_sqm": 241346.00563814468,
      "cost_per_unit": 3148.160714285714,
      "floor_per_unit": 130.44179894179894,
      "yoy": 2.867941556558762,
      "ratio_national": 1.0069976899069508,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 85.23923204898743,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 1676,
      "floor_total": 215042,
      "cost_total": 5339601,
      "price_per_tsubo": 82.08442811074116,
      "price_per_sqm": 248305.02878507454,
      "cost_per_unit": 3185.919451073986,
      "floor_per_unit": 128.30668257756562,
      "yoy": 2.8834217200029544,
      "ratio_national": 1.0142321982823967,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 87.88482667102907,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 1642,
      "floor_total": 206654,
      "cost_total": 5295649,
      "price_per_tsubo": 84.713112292576,
      "price_per_sqm": 256256.786706282,
      "cost_per_unit": 3225.1211936662608,
      "floor_per_unit": 125.85505481120585,
      "yoy": 3.2024151746400165,
      "ratio_national": 1.0254153293160182,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 90.69926369654817,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 1674,
      "floor_total": 210947,
      "cost_total": 5521580,
      "price_per_tsubo": 86.52971574945364,
      "price_per_sqm": 261752.00405789132,
      "cost_per_unit": 3298.4348864994026,
      "floor_per_unit": 126.01373954599761,
      "yoy": 2.1444182697521352,
      "ratio_national": 1.0225510750525686,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 90.89255856035047,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 1609,
      "floor_total": 201765,
      "cost_total": 5340693,
      "price_per_tsubo": 87.50382629529402,
      "price_per_sqm": 264698.68411270535,
      "cost_per_unit": 3319.262274704786,
      "floor_per_unit": 125.3977625854568,
      "yoy": 1.125752624290266,
      "ratio_national": 1.0104517187550297,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 89.19859968939248,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 1504,
      "floor_total": 187276,
      "cost_total": 5206346,
      "price_per_tsubo": 91.90225412407356,
      "price_per_sqm": 278003.90866955725,
      "cost_per_unit": 3461.666223404255,
      "floor_per_unit": 124.5186170212766,
      "yoy": 5.026554854797349,
      "ratio_national": 1.0243118316233668,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 91.71881649109139,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 1471,
      "floor_total": 188266,
      "cost_total": 5308876,
      "price_per_tsubo": 93.21932368053712,
      "price_per_sqm": 281988.0382012684,
      "cost_per_unit": 3609.025152957172,
      "floor_per_unit": 127.98504418762747,
      "yoy": 1.4331199697076302,
      "ratio_national": 1.011641354202234,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 93.21932368053712,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 1544,
      "floor_total": 195557,
      "cost_total": 5654817,
      "price_per_tsubo": 95.59175836421095,
      "price_per_sqm": 289164.6425338904,
      "cost_per_unit": 3662.446243523316,
      "floor_per_unit": 126.65608808290155,
      "yoy": 2.545003106656485,
      "ratio_national": 1.0061426400632998,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 88.26570486076727,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 1315,
      "floor_total": 162326,
      "cost_total": 5052003,
      "price_per_tsubo": 102.88469498028658,
      "price_per_sqm": 311225.74325739563,
      "cost_per_unit": 3841.8273764258556,
      "floor_per_unit": 123.44182509505704,
      "yoy": 7.6292525013391455,
      "ratio_national": 1.0157760186536773,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 88.38891321330462,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 1055,
      "floor_total": 129606,
      "cost_total": 4444840,
      "price_per_tsubo": 113.37212492940142,
      "price_per_sqm": 342950.1720599355,
      "cost_per_unit": 4213.118483412322,
      "floor_per_unit": 122.84928909952606,
      "yoy": 10.193381971073844,
      "ratio_national": 1.0353467387996464,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 96.89925207641147,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 988,
      "floor_total": 121355,
      "cost_total": 4373073,
      "price_per_tsubo": 119.12538414296898,
      "price_per_sqm": 360353.7555106918,
      "cost_per_unit": 4426.187246963563,
      "floor_per_unit": 122.82894736842105,
      "yoy": 5.07466823714402,
      "ratio_national": 1.0243586961201527,
      "rank_in_national": 5,
      "is_spliced": true,
      "price_per_tsubo_real": 98.12634608152304,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 968,
      "floor_total": 118515,
      "cost_total": 4610799,
      "price_per_tsubo": 128.61100473534995,
      "price_per_sqm": 389047.71547905327,
      "cost_per_unit": 4763.222107438017,
      "floor_per_unit": 122.43285123966942,
      "yoy": 7.962719835595022,
      "ratio_national": 1.0461249523326255,
      "rank_in_national": 6,
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      "price_per_tsubo_real": 103.46822585305708,
      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}