{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "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": 2022,
    "price_per_tsubo": 124.5921888542643,
    "prev_price_per_tsubo": 112.45300929936305,
    "change_vs_prev": 10.79489079975204,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 3951,
      "floor_total": 187964,
      "cost_total": 3597949,
      "price_per_tsubo": 63.278414083069094,
      "price_per_sqm": 191416.92026132662,
      "cost_per_unit": 910.6426221209821,
      "floor_per_unit": 47.5737787901797,
      "yoy": null,
      "ratio_national": 1.0092432160143354,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 72.07108665497618,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 4750,
      "floor_total": 223513,
      "cost_total": 4314963,
      "price_per_tsubo": 63.81893462917146,
      "price_per_sqm": 193051.99250155472,
      "cost_per_unit": 908.4132631578948,
      "floor_per_unit": 47.055368421052634,
      "yoy": 0.854194204982428,
      "ratio_national": 0.9847550387585939,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 70.67434621170705,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 5119,
      "floor_total": 228822,
      "cost_total": 4731933,
      "price_per_tsubo": 68.36220639654404,
      "price_per_sqm": 206795.36932637595,
      "cost_per_unit": 924.3862082437976,
      "floor_per_unit": 44.70052744676695,
      "yoy": 7.119002837906763,
      "ratio_national": 0.9929875521772893,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 73.03654529545304,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 5788,
      "floor_total": 259085,
      "cost_total": 5589935,
      "price_per_tsubo": 71.32466651349944,
      "price_per_sqm": 215756.79796205877,
      "cost_per_unit": 965.7800621976503,
      "floor_per_unit": 44.762439530062196,
      "yoy": 4.333476453014495,
      "ratio_national": 1.0083984824599297,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 76.36473930781524,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 6508,
      "floor_total": 277971,
      "cost_total": 6197969,
      "price_per_tsubo": 73.70978965615119,
      "price_per_sqm": 222971.7848264747,
      "cost_per_unit": 952.3615550092194,
      "floor_per_unit": 42.71220036877689,
      "yoy": 3.344036865844058,
      "ratio_national": 1.015652550282661,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 78.91840434277428,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 7355,
      "floor_total": 314959,
      "cost_total": 6849548,
      "price_per_tsubo": 71.89242816658677,
      "price_per_sqm": 217474.27442937018,
      "cost_per_unit": 931.2777702243371,
      "floor_per_unit": 42.822433718558806,
      "yoy": -2.4655632556302653,
      "ratio_national": 0.9596125984805525,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 75.51725647750712,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 6479,
      "floor_total": 281661,
      "cost_total": 6325768,
      "price_per_tsubo": 74.24407566798385,
      "price_per_sqm": 224587.99762835464,
      "cost_per_unit": 976.349436641457,
      "floor_per_unit": 43.47291248649483,
      "yoy": 3.2710642293899417,
      "ratio_national": 0.9769099164999108,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 75.6820343200651,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 4854,
      "floor_total": 216644,
      "cost_total": 5257561,
      "price_per_tsubo": 80.22558934560847,
      "price_per_sqm": 242682.0498144421,
      "cost_per_unit": 1083.139884631232,
      "floor_per_unit": 44.63205603625875,
      "yoy": 8.056553501148933,
      "ratio_national": 1.0224007761707479,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 80.06545842875097,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 5465,
      "floor_total": 277166,
      "cost_total": 7189862,
      "price_per_tsubo": 85.7542912946754,
      "price_per_sqm": 259406.34854202895,
      "cost_per_unit": 1315.6197621225983,
      "floor_per_unit": 50.71655992680695,
      "yoy": 6.8914444806999375,
      "ratio_national": 1.05506703992381,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 85.7542912946754,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 5510,
      "floor_total": 246759,
      "cost_total": 6458611,
      "price_per_tsubo": 86.52495616245001,
      "price_per_sqm": 261737.6063284419,
      "cost_per_unit": 1172.1617059891107,
      "floor_per_unit": 44.783847549909254,
      "yoy": 0.8986895654310656,
      "ratio_national": 1.0421276417342675,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 79.89377300318561,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 5670,
      "floor_total": 269249,
      "cost_total": 7497012,
      "price_per_tsubo": 92.04694279079959,
      "price_per_sqm": 278441.5912408217,
      "cost_per_unit": 1322.2243386243385,
      "floor_per_unit": 47.48659611992945,
      "yoy": 6.381958308054014,
      "ratio_national": 1.0431382690403939,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 79.07812954536047,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 4887,
      "floor_total": 237711,
      "cost_total": 7185711,
      "price_per_tsubo": 99.9299635552835,
      "price_per_sqm": 302287.69388038415,
      "cost_per_unit": 1470.3726212400245,
      "floor_per_unit": 48.6414978514426,
      "yoy": 8.564131002590836,
      "ratio_national": 1.0148399662352934,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 85.41022526092607,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 4418,
      "floor_total": 222475,
      "cost_total": 7322674,
      "price_per_tsubo": 108.80873123928531,
      "price_per_sqm": 329145.92650859646,
      "cost_per_unit": 1657.4635581711182,
      "floor_per_unit": 50.356496152105024,
      "yoy": 8.88499041540214,
      "ratio_national": 1.0091147322399463,
      "rank_in_national": 5,
      "is_spliced": true,
      "price_per_tsubo_real": 89.6282794392795,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 4176,
      "floor_total": 226395,
      "cost_total": 7889837,
      "price_per_tsubo": 115.20636169628305,
      "price_per_sqm": 348498.73009562935,
      "cost_per_unit": 1889.328783524904,
      "floor_per_unit": 54.213362068965516,
      "yoy": 5.879703204082465,
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      "rank_in_national": 10,
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      "price_per_tsubo_real": 92.68412043144252,
      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}