{
  "area": {
    "code": "11000",
    "name": "埼玉県",
    "slug": "saitama"
  },
  "structure": {
    "id": "all",
    "name": "全構造"
  },
  "segment": {
    "segment": "all",
    "building_type": "detached",
    "label": "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": 9989,
    "price_per_tsubo": 69.208139966826,
    "prev_price_per_tsubo": 68.55596143905247,
    "change_vs_prev": 0.9513082656616518,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 31455,
      "floor_total": 3497363,
      "cost_total": 57615604,
      "price_per_tsubo": 54.45962788168114,
      "price_per_sqm": 164740.13135039172,
      "cost_per_unit": 1831.6834843427118,
      "floor_per_unit": 111.1862343029725,
      "yoy": null,
      "ratio_national": 0.9719856352607847,
      "rank_in_national": 25,
      "is_spliced": false,
      "price_per_tsubo_real": 62.02691102697169,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 33706,
      "floor_total": 3756053,
      "cost_total": 62246076,
      "price_per_tsubo": 54.78422577637749,
      "price_per_sqm": 165722.03853353506,
      "cost_per_unit": 1846.735774046164,
      "floor_per_unit": 111.43573844419392,
      "yoy": 0.5960339931105896,
      "ratio_national": 0.971001907556737,
      "rank_in_national": 27,
      "is_spliced": false,
      "price_per_tsubo_real": 60.60201966413439,
      "deflator": 90.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 28220,
      "floor_total": 3120450,
      "cost_total": 51978459,
      "price_per_tsubo": 55.065734101687255,
      "price_per_sqm": 166573.599961544,
      "cost_per_unit": 1841.9014528703046,
      "floor_per_unit": 110.57583274273564,
      "yoy": 0.5138492354694435,
      "ratio_national": 0.9562017354622503,
      "rank_in_national": 33,
      "is_spliced": false,
      "price_per_tsubo_real": 58.95688875983646,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 29451,
      "floor_total": 3252720,
      "cost_total": 54504447,
      "price_per_tsubo": 55.393718441221495,
      "price_per_sqm": 167565.75112521212,
      "cost_per_unit": 1850.6823876948151,
      "floor_per_unit": 110.44514617500255,
      "yoy": 0.5956232943858719,
      "ratio_national": 0.9511322745668126,
      "rank_in_national": 35,
      "is_spliced": false,
      "price_per_tsubo_real": 59.435320215902884,
      "deflator": 93.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 31021,
      "floor_total": 3410955,
      "cost_total": 56980050,
      "price_per_tsubo": 55.22326723439624,
      "price_per_sqm": 167050.13698509656,
      "cost_per_unit": 1836.8218303729732,
      "floor_per_unit": 109.95631991231747,
      "yoy": -0.30770854822848026,
      "ratio_national": 0.9455372833349955,
      "rank_in_national": 39,
      "is_spliced": false,
      "price_per_tsubo_real": 59.062317897749985,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 29742,
      "floor_total": 3255273,
      "cost_total": 54564539,
      "price_per_tsubo": 55.41129956867211,
      "price_per_sqm": 167618.9339573056,
      "cost_per_unit": 1834.5954878622822,
      "floor_per_unit": 109.45037320960259,
      "yoy": 0.3404947655084811,
      "ratio_national": 0.9407181460082562,
      "rank_in_national": 45,
      "is_spliced": false,
      "price_per_tsubo_real": 58.20514660574801,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 30328,
      "floor_total": 3309984,
      "cost_total": 56105061,
      "price_per_tsubo": 56.03397164553968,
      "price_per_sqm": 169502.51421154905,
      "cost_per_unit": 1849.9426602479557,
      "floor_per_unit": 109.139541018201,
      "yoy": 1.1237276182195943,
      "ratio_national": 0.9413008446029224,
      "rank_in_national": 43,
      "is_spliced": false,
      "price_per_tsubo_real": 57.1192371514166,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 29025,
      "floor_total": 3166553,
      "cost_total": 54272450,
      "price_per_tsubo": 56.658872434947405,
      "price_per_sqm": 171392.83631128233,
      "cost_per_unit": 1869.851851851852,
      "floor_per_unit": 109.09743324720068,
      "yoy": 1.115217734985352,
      "ratio_national": 0.9433746470134127,
      "rank_in_national": 46,
      "is_spliced": false,
      "price_per_tsubo_real": 56.545780873201004,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 27121,
      "floor_total": 2964363,
      "cost_total": 50853449,
      "price_per_tsubo": 56.71060634939446,
      "price_per_sqm": 171549.33117165475,
      "cost_per_unit": 1875.0580362081043,
      "floor_per_unit": 109.30139006673795,
      "yoy": 0.09130770208400918,
      "ratio_national": 0.9375756942950737,
      "rank_in_national": 45,
      "is_spliced": false,
      "price_per_tsubo_real": 56.71060634939447,
      "deflator": 100,
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    },
    {
      "fiscal_year": 2021,
      "units": 30193,
      "floor_total": 3292090,
      "cost_total": 56273216,
      "price_per_tsubo": 56.50739643224821,
      "price_per_sqm": 170934.62207898326,
      "cost_per_unit": 1863.7835259828437,
      "floor_per_unit": 109.03487563342496,
      "yoy": -0.35832788648789693,
      "ratio_national": 0.9271250502908872,
      "rank_in_national": 47,
      "is_spliced": false,
      "price_per_tsubo_real": 51.9847253286552,
      "deflator": 108.7,
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    },
    {
      "fiscal_year": 2022,
      "units": 29481,
      "floor_total": 3170929,
      "cost_total": 55188574,
      "price_per_tsubo": 57.53576823809678,
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      "yoy": 1.8198888477928277,
      "ratio_national": 0.914933727818246,
      "rank_in_national": 47,
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      "price_per_tsubo_real": 49.90092648577345,
      "deflator": 115.3,
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    },
    {
      "fiscal_year": 2023,
      "units": 27321,
      "floor_total": 2895772,
      "cost_total": 55625153,
      "price_per_tsubo": 63.501226800960154,
      "price_per_sqm": 192090.92773878606,
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      "yoy": 10.368260901943426,
      "ratio_national": 0.8757962044333788,
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      "is_spliced": false,
      "price_per_tsubo_real": 55.26651592772859,
      "deflator": 114.9,
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    },
    {
      "fiscal_year": 2024,
      "units": 25643,
      "floor_total": 2729696,
      "cost_total": 54646450,
      "price_per_tsubo": 66.17941629599046,
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    {
      "fiscal_year": 2025,
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    }
  ]
}