{
  "area": {
    "code": "12000",
    "name": "千葉県",
    "slug": "chiba"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "owner",
    "building_type": "detached",
    "label": "持家・一戸建"
  },
  "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": 359,
    "price_per_tsubo": 131.62242587579618,
    "prev_price_per_tsubo": 129.19466299231726,
    "change_vs_prev": 1.8791510634021336,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 1887,
      "floor_total": 248503,
      "cost_total": 5715687,
      "price_per_tsubo": 76.03473973243784,
      "price_per_sqm": 230004.74843362052,
      "cost_per_unit": 3028.980922098569,
      "floor_per_unit": 131.69210386857446,
      "yoy": null,
      "ratio_national": 1.020080677091465,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 86.59993135812967,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 1826,
      "floor_total": 238503,
      "cost_total": 5590539,
      "price_per_tsubo": 77.48811512144502,
      "price_per_sqm": 234401.2025005975,
      "cost_per_unit": 3061.63143483023,
      "floor_per_unit": 130.61500547645127,
      "yoy": 1.9114623054166113,
      "ratio_national": 1.0170288524127682,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 85.81186613670545,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 1504,
      "floor_total": 196671,
      "cost_total": 4747106,
      "price_per_tsubo": 79.7928293634547,
      "price_per_sqm": 241372.9527993451,
      "cost_per_unit": 3156.3204787234044,
      "floor_per_unit": 130.7652925531915,
      "yoy": 2.97428094411325,
      "ratio_national": 1.007741516917528,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 85.24874931993024,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 1648,
      "floor_total": 213240,
      "cost_total": 5287803,
      "price_per_tsubo": 81.9750810324986,
      "price_per_sqm": 247974.25436128306,
      "cost_per_unit": 3208.6183252427186,
      "floor_per_unit": 129.39320388349515,
      "yoy": 2.7348969656205258,
      "ratio_national": 1.012920954698728,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 87.76775271145459,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 1622,
      "floor_total": 205162,
      "cost_total": 5251242,
      "price_per_tsubo": 84.61363844756826,
      "price_per_sqm": 255955.87876897282,
      "cost_per_unit": 3237.5104808877927,
      "floor_per_unit": 126.48705302096178,
      "yoy": 3.2187310849056905,
      "ratio_national": 1.0246701639389202,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 90.59276065050135,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 1657,
      "floor_total": 209488,
      "cost_total": 5476876,
      "price_per_tsubo": 86.42691663503399,
      "price_per_sqm": 261441.03719544795,
      "cost_per_unit": 3305.2963186481593,
      "floor_per_unit": 126.42607121303561,
      "yoy": 2.1430093549154483,
      "ratio_national": 1.0218867068536328,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 90.78457629730461,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 1594,
      "floor_total": 200613,
      "cost_total": 5311679,
      "price_per_tsubo": 87.52820266587908,
      "price_per_sqm": 264772.422524961,
      "cost_per_unit": 3332.2954830614804,
      "floor_per_unit": 125.85508155583437,
      "yoy": 1.2742396393656374,
      "ratio_national": 1.0111178709685082,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 89.22344818132424,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 1488,
      "floor_total": 185929,
      "cost_total": 5158145,
      "price_per_tsubo": 91.71105185070645,
      "price_per_sqm": 277425.5226457411,
      "cost_per_unit": 3466.4952956989246,
      "floor_per_unit": 124.95228494623656,
      "yoy": 4.778858764865235,
      "ratio_national": 1.0225121308161549,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 91.52799585898848,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 1457,
      "floor_total": 187425,
      "cost_total": 5285241,
      "price_per_tsubo": 93.22073813733493,
      "price_per_sqm": 281992.3169267707,
      "cost_per_unit": 3627.481811942347,
      "floor_per_unit": 128.63761153054222,
      "yoy": 1.6461334333903954,
      "ratio_national": 1.0122802897499301,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 93.22073813733493,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 1537,
      "floor_total": 195056,
      "cost_total": 5640717,
      "price_per_tsubo": 95.59831972064433,
      "price_per_sqm": 289184.49060782546,
      "cost_per_unit": 3669.952504879636,
      "floor_per_unit": 126.90696161353286,
      "yoy": 2.550485686786441,
      "ratio_national": 1.0070272336541166,
      "rank_in_national": 8,
      "is_spliced": false,
      "price_per_tsubo_real": 88.27176336162911,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 1299,
      "floor_total": 161073,
      "cost_total": 5012381,
      "price_per_tsubo": 102.87185925629994,
      "price_per_sqm": 311186.9152496073,
      "cost_per_unit": 3858.645881447267,
      "floor_per_unit": 123.99769053117782,
      "yoy": 7.608438680627683,
      "ratio_national": 1.0164886719698276,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 88.37788595902056,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 1051,
      "floor_total": 129221,
      "cost_total": 4430619,
      "price_per_tsubo": 113.3460968728767,
      "price_per_sqm": 342871.437305082,
      "cost_per_unit": 4215.622264509991,
      "floor_per_unit": 122.95052331113226,
      "yoy": 10.181829795144214,
      "ratio_national": 1.0366488516587813,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 96.87700587425358,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 969,
      "floor_total": 119835,
      "cost_total": 4313713,
      "price_per_tsubo": 118.99886759519337,
      "price_per_sqm": 359971.04351817083,
      "cost_per_unit": 4451.7162022703815,
      "floor_per_unit": 123.6687306501548,
      "yoy": 4.987177219394279,
      "ratio_national": 1.024823451658066,
      "rank_in_national": 5,
      "is_spliced": true,
      "price_per_tsubo_real": 98.02213146226802,
      "deflator": 121.4,
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    },
    {
      "fiscal_year": 2025,
      "units": 958,
      "floor_total": 117750,
      "cost_total": 4581209,
      "price_per_tsubo": 128.61583779286624,
      "price_per_sqm": 389062.33545647556,
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      "floor_per_unit": 122.91231732776617,
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      "is_spliced": false,
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      "deflator": 124.3,
      "deflator_provisional": true
    }
  ]
}