{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "rowhouse",
    "label": "貸家・長屋建"
  },
  "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": 249,
    "price_per_tsubo": 109.03787392769519,
    "prev_price_per_tsubo": 99.91349053835062,
    "change_vs_prev": 9.132283678791396,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 1967,
      "floor_total": 110750,
      "cost_total": 2024356,
      "price_per_tsubo": 60.42524443557562,
      "price_per_sqm": 182786.09480812642,
      "cost_per_unit": 1029.159125571937,
      "floor_per_unit": 56.30401626842908,
      "yoy": null,
      "ratio_national": 1.0479536347347738,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 68.82146291067839,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 2798,
      "floor_total": 159732,
      "cost_total": 2958061,
      "price_per_tsubo": 61.219595780369616,
      "price_per_sqm": 185189.00408183708,
      "cost_per_unit": 1057.2055039313796,
      "floor_per_unit": 57.0879199428163,
      "yoy": 1.3146017897220474,
      "ratio_national": 1.0269118221461675,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 67.79578713219226,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 2496,
      "floor_total": 135424,
      "cost_total": 2701667,
      "price_per_tsubo": 65.9494901341712,
      "price_per_sqm": 199496.9133979206,
      "cost_per_unit": 1082.398637820513,
      "floor_per_unit": 54.256410256410255,
      "yoy": 7.726111702485716,
      "ratio_national": 1.0459429691300741,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 70.45885698095215,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 2102,
      "floor_total": 116585,
      "cost_total": 2486921,
      "price_per_tsubo": 70.5171211784535,
      "price_per_sqm": 213313.97692670583,
      "cost_per_unit": 1183.1213130352046,
      "floor_per_unit": 55.46384395813511,
      "yoy": 6.925953536546925,
      "ratio_national": 1.084525662054273,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 75.5001297413849,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 2085,
      "floor_total": 110937,
      "cost_total": 2495669,
      "price_per_tsubo": 74.36795319424539,
      "price_per_sqm": 224962.72659257057,
      "cost_per_unit": 1196.9635491606714,
      "floor_per_unit": 53.20719424460432,
      "yoy": 5.460846885746817,
      "ratio_national": 1.1251486661061982,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 79.62307622510212,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 1459,
      "floor_total": 75951,
      "cost_total": 1693153,
      "price_per_tsubo": 73.69499092665008,
      "price_per_sqm": 222927.01873576385,
      "cost_per_unit": 1160.4886908841672,
      "floor_per_unit": 52.056888279643594,
      "yoy": -0.9049089543147204,
      "ratio_national": 1.0961448997088186,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 77.41070475488453,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 1150,
      "floor_total": 63534,
      "cost_total": 1381114,
      "price_per_tsubo": 71.8618826149778,
      "price_per_sqm": 217381.87427204332,
      "cost_per_unit": 1200.968695652174,
      "floor_per_unit": 55.24695652173913,
      "yoy": -2.4874259276275623,
      "ratio_national": 1.0603091632258268,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 73.25370297143508,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 905,
      "floor_total": 49770,
      "cost_total": 1091136,
      "price_per_tsubo": 72.47471322965642,
      "price_per_sqm": 219235.68414707656,
      "cost_per_unit": 1205.675138121547,
      "floor_per_unit": 54.994475138121544,
      "yoy": 0.8527895351170267,
      "ratio_national": 1.026701810871008,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 72.3300531234096,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 617,
      "floor_total": 33891,
      "cost_total": 758328,
      "price_per_tsubo": 73.96869726830131,
      "price_per_sqm": 223754.9791980172,
      "cost_per_unit": 1229.0567260940034,
      "floor_per_unit": 54.92868719611021,
      "yoy": 2.0613866161992123,
      "ratio_national": 1.0213152417758367,
      "rank_in_national": 12,
      "is_spliced": false,
      "price_per_tsubo_real": 73.96869726830131,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 895,
      "floor_total": 48059,
      "cost_total": 1080286,
      "price_per_tsubo": 74.30863430241993,
      "price_per_sqm": 224783.2872094717,
      "cost_per_unit": 1207.0234636871508,
      "floor_per_unit": 53.69720670391062,
      "yoy": 0.45956877256549955,
      "ratio_national": 1.0104581080802018,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 68.61369741682358,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 1108,
      "floor_total": 56781,
      "cost_total": 1386965,
      "price_per_tsubo": 80.74910669678236,
      "price_per_sqm": 244265.68746587768,
      "cost_per_unit": 1251.7734657039712,
      "floor_per_unit": 51.24638989169675,
      "yoy": 8.667192520523415,
      "ratio_national": 1.0496197493151167,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 69.37208479105014,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 1014,
      "floor_total": 55112,
      "cost_total": 1471220,
      "price_per_tsubo": 88.2483735629264,
      "price_per_sqm": 266950.93627522135,
      "cost_per_unit": 1450.9072978303748,
      "floor_per_unit": 54.35108481262328,
      "yoy": 9.287120530390801,
      "ratio_national": 1.0452474391335411,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 75.4259603101935,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 708,
      "floor_total": 41413,
      "cost_total": 1262000,
      "price_per_tsubo": 100.73906695965036,
      "price_per_sqm": 304735.2280684809,
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      "is_spliced": true,
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      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 781,
      "floor_total": 43907,
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      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}