{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "company",
    "building_type": "apartment",
    "label": "給与住宅・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": 10,
    "price_per_tsubo": 131.4802840909091,
    "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": 68,
      "floor_total": 2247,
      "cost_total": 43000,
      "price_per_tsubo": 63.261668891855805,
      "price_per_sqm": 191366.26613262127,
      "cost_per_unit": 632.3529411764706,
      "floor_per_unit": 33.044117647058826,
      "yoy": null,
      "ratio_national": 1.4254316121259365,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 70.05721914934198,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 11,
      "floor_total": 362,
      "cost_total": 8000,
      "price_per_tsubo": 73.05613259668509,
      "price_per_sqm": 220994.47513812155,
      "cost_per_unit": 727.2727272727273,
      "floor_per_unit": 32.90909090909091,
      "yoy": 15.482461775664923,
      "ratio_national": 1.0925577291341901,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 78.05142371440715,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 142,
      "floor_total": 7359,
      "cost_total": 199090,
      "price_per_tsubo": 89.434669262128,
      "price_per_sqm": 270539.4754722109,
      "cost_per_unit": 1402.0422535211267,
      "floor_per_unit": 51.82394366197183,
      "yoy": 22.4191126511754,
      "ratio_national": 1.2584720389193451,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 95.75446387808137,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 22,
      "floor_total": 1049,
      "cost_total": 28320,
      "price_per_tsubo": 89.24687588179218,
      "price_per_sqm": 269971.40133460436,
      "cost_per_unit": 1287.2727272727273,
      "floor_per_unit": 47.68181818181818,
      "yoy": -0.20997828010679287,
      "ratio_national": 1.2596538916816644,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 95.55340030170468,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 263,
      "floor_total": 19792,
      "cost_total": 323320,
      "price_per_tsubo": 54.00303267987065,
      "price_per_sqm": 163358.9329021827,
      "cost_per_unit": 1229.3536121673003,
      "floor_per_unit": 75.25475285171103,
      "yoy": null,
      "ratio_national": 0.7991178634817186,
      "rank_in_national": 14,
      "is_spliced": false,
      "price_per_tsubo_real": 55.048962976422686,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "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": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 229,
      "floor_total": 8498,
      "cost_total": 232194,
      "price_per_tsubo": 90.32532398917392,
      "price_per_sqm": 273233.7020475406,
      "cost_per_unit": 1013.9475982532751,
      "floor_per_unit": 37.109170305676855,
      "yoy": null,
      "ratio_national": 0.979161881736984,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 90.32532398917392,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 45,
      "floor_total": 2123,
      "cost_total": 60426,
      "price_per_tsubo": 94.0912230522845,
      "price_per_sqm": 284625.529910504,
      "cost_per_unit": 1342.8,
      "floor_per_unit": 47.17777777777778,
      "yoy": 4.169261616556108,
      "ratio_national": 1.0522978918944885,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 86.88016902334674,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 32,
      "floor_total": 1158,
      "cost_total": 38000,
      "price_per_tsubo": 108.4801554404145,
      "price_per_sqm": 328151.98618307424,
      "cost_per_unit": 1187.5,
      "floor_per_unit": 36.1875,
      "yoy": 15.292534118867152,
      "ratio_national": 1.2880014875808359,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 93.1960098285348,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 10,
      "floor_total": 176,
      "cost_total": 6000,
      "price_per_tsubo": 112.69738636363637,
      "price_per_sqm": 340909.0909090909,
      "cost_per_unit": 600,
      "floor_per_unit": 17.6,
      "yoy": 3.8875598086124397,
      "ratio_national": 1.1458634649652228,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 96.32255244755245,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 81,
      "floor_total": 3346,
      "cost_total": 146120,
      "price_per_tsubo": 144.36402713687986,
      "price_per_sqm": 436700.53795576806,
      "cost_per_unit": 1803.9506172839506,
      "floor_per_unit": 41.30864197530864,
      "yoy": 28.098824467025295,
      "ratio_national": 1.1682029105286142,
      "rank_in_national": 4,
      "is_spliced": true,
      "price_per_tsubo_real": 118.91600258392079,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 120,
      "floor_total": 8945,
      "cost_total": 264500,
      "price_per_tsubo": 97.75086137506987,
      "price_per_sqm": 295695.9195081051,
      "cost_per_unit": 2204.1666666666665,
      "floor_per_unit": 74.54166666666667,
      "yoy": -32.28862943648237,
      "ratio_national": 0.8034210892628898,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 78.64107914325814,
      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}