{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "all",
    "label": "貸家"
  },
  "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": 2268,
    "price_per_tsubo": 122.5512734140832,
    "prev_price_per_tsubo": 110.32626339624225,
    "change_vs_prev": 11.080779536540831,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 5983,
      "floor_total": 304407,
      "cost_total": 5729140,
      "price_per_tsubo": 62.217142577535995,
      "price_per_sqm": 188206.57869234282,
      "cost_per_unit": 957.5697810462979,
      "floor_per_unit": 50.87865619254555,
      "yoy": null,
      "ratio_national": 1.0171155343391816,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 70.86234917714806,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 7541,
      "floor_total": 387316,
      "cost_total": 7370242,
      "price_per_tsubo": 62.90592772098235,
      "price_per_sqm": 190290.15067799937,
      "cost_per_unit": 977.3560535737965,
      "floor_per_unit": 51.3613579100915,
      "yoy": 1.1070665011463365,
      "ratio_national": 0.9952846201237836,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 69.66326436432155,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 7652,
      "floor_total": 369818,
      "cost_total": 7563457,
      "price_per_tsubo": 67.60947416304776,
      "price_per_sqm": 204518.3576786419,
      "cost_per_unit": 988.4287767903816,
      "floor_per_unit": 48.329587036069,
      "yoy": 7.477111637122458,
      "ratio_national": 1.0102709925500837,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 72.23234419129035,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 7763,
      "floor_total": 372172,
      "cost_total": 7967831,
      "price_per_tsubo": 70.77366390134132,
      "price_per_sqm": 214090.01751878165,
      "cost_per_unit": 1026.3855468246811,
      "floor_per_unit": 47.94177508695092,
      "yoy": 4.680098133381083,
      "ratio_national": 1.0265631898922378,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 75.77480075090077,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 8595,
      "floor_total": 392010,
      "cost_total": 8760856,
      "price_per_tsubo": 73.87962081640774,
      "price_per_sqm": 223485.5233284865,
      "cost_per_unit": 1019.2968004653868,
      "floor_per_unit": 45.609075043630014,
      "yoy": 4.388577252968173,
      "ratio_national": 1.0455801501889659,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 79.10023642013677,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 8758,
      "floor_total": 387445,
      "cost_total": 8595143,
      "price_per_tsubo": 73.33618391763991,
      "price_per_sqm": 221841.6291344578,
      "cost_per_unit": 981.4047727791733,
      "floor_per_unit": 44.23898150262617,
      "yoy": -0.7355707741357742,
      "ratio_national": 1.003547657276253,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 77.03380663617638,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 7409,
      "floor_total": 330198,
      "cost_total": 7475805,
      "price_per_tsubo": 74.84430981093163,
      "price_per_sqm": 226403.70323260588,
      "cost_per_unit": 1009.0167364016736,
      "floor_per_unit": 44.56714806316642,
      "yoy": 2.056455371314958,
      "ratio_national": 1.0116470319690987,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 76.29389379299862,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 5806,
      "floor_total": 270986,
      "cost_total": 6448465,
      "price_per_tsubo": 78.66558092429129,
      "price_per_sqm": 237963.03130051,
      "cost_per_unit": 1110.65535652773,
      "floor_per_unit": 46.67344126765415,
      "yoy": 5.10562676442976,
      "ratio_national": 1.024138497846273,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 78.5085637966979,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 5312,
      "floor_total": 251447,
      "cost_total": 6218847,
      "price_per_tsubo": 81.75958442188612,
      "price_per_sqm": 247322.37807569787,
      "cost_per_unit": 1170.7166792168675,
      "floor_per_unit": 47.33565512048193,
      "yoy": 3.9331095775832825,
      "ratio_national": 1.029615261951448,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 81.75958442188612,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 6322,
      "floor_total": 294072,
      "cost_total": 7495047,
      "price_per_tsubo": 84.25505121919122,
      "price_per_sqm": 254871.15400310128,
      "cost_per_unit": 1185.549984182221,
      "floor_per_unit": 46.51565960139197,
      "yoy": 3.052200931487481,
      "ratio_national": 1.0357522278233213,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 77.79783122732337,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 6786,
      "floor_total": 328633,
      "cost_total": 8929715,
      "price_per_tsubo": 89.82592298962673,
      "price_per_sqm": 271723.0162521719,
      "cost_per_unit": 1315.9025935750074,
      "floor_per_unit": 48.42808723843206,
      "yoy": 6.61191428860779,
      "ratio_national": 1.041753990587172,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 77.170036932669,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 5908,
      "floor_total": 295702,
      "cost_total": 8718024,
      "price_per_tsubo": 97.46283947677054,
      "price_per_sqm": 294824.6545508654,
      "cost_per_unit": 1475.6303317535544,
      "floor_per_unit": 50.05111712931618,
      "yoy": 8.501907058640224,
      "ratio_national": 1.015639723327293,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 83.30157220236798,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 5095,
      "floor_total": 265674,
      "cost_total": 8589132,
      "price_per_tsubo": 106.87484162650466,
      "price_per_sqm": 323295.919058696,
      "cost_per_unit": 1685.7962708537782,
      "floor_per_unit": 52.14406280667321,
      "yoy": 9.657016151245411,
      "ratio_national": 1.012053718093206,
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      "is_spliced": true,
      "price_per_tsubo_real": 88.0352896429198,
      "deflator": 121.4,
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    },
    {
      "fiscal_year": 2025,
      "units": 4871,
      "floor_total": 264971,
      "cost_total": 9083760,
      "price_per_tsubo": 113.32939442580508,
      "price_per_sqm": 342820.9124772145,
      "cost_per_unit": 1864.8655306918497,
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      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}