{
  "area": {
    "code": "11000",
    "name": "埼玉県",
    "slug": "saitama"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "detached",
    "label": "貸家・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": 34,
    "price_per_tsubo": 118.71900317007716,
    "prev_price_per_tsubo": 118.1241751851852,
    "change_vs_prev": 0.5035615985969457,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 30,
      "floor_total": 2508,
      "cost_total": 52207,
      "price_per_tsubo": 68.81394678229664,
      "price_per_sqm": 208161.88197767144,
      "cost_per_unit": 1740.2333333333333,
      "floor_per_unit": 83.6,
      "yoy": null,
      "ratio_national": 1.0672682103410476,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 78.3757936017046,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 35,
      "floor_total": 3550,
      "cost_total": 71804,
      "price_per_tsubo": 66.8644915943662,
      "price_per_sqm": 202264.78873239437,
      "cost_per_unit": 2051.542857142857,
      "floor_per_unit": 101.42857142857143,
      "yoy": -2.8329361693173016,
      "ratio_national": 1.0217485683361218,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 74.04705602919846,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 50,
      "floor_total": 4935,
      "cost_total": 99430,
      "price_per_tsubo": 66.60480237082066,
      "price_per_sqm": 201479.2299898683,
      "cost_per_unit": 1988.6,
      "floor_per_unit": 98.7,
      "yoy": -0.3883813625936816,
      "ratio_national": 0.9247516909897551,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 71.15897689190243,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 72,
      "floor_total": 6065,
      "cost_total": 116692,
      "price_per_tsubo": 63.60416268425392,
      "price_per_sqm": 192402.3083264633,
      "cost_per_unit": 1620.7222222222222,
      "floor_per_unit": 84.23611111111111,
      "yoy": -4.505140139686548,
      "ratio_national": 0.9069685667060089,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 68.09867525080719,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 87,
      "floor_total": 6613,
      "cost_total": 157733,
      "price_per_tsubo": 78.84956510963255,
      "price_per_sqm": 238519.58264025406,
      "cost_per_unit": 1813.0229885057472,
      "floor_per_unit": 76.01149425287356,
      "yoy": 23.969189722786545,
      "ratio_national": 1.0840574677333312,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 84.42137592037746,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 91,
      "floor_total": 7611,
      "cost_total": 180248,
      "price_per_tsubo": 78.28958558927867,
      "price_per_sqm": 236825.64708973854,
      "cost_per_unit": 1980.7472527472528,
      "floor_per_unit": 83.63736263736264,
      "yoy": -0.7101872021428202,
      "ratio_national": 1.0176328552487122,
      "rank_in_national": 5,
      "is_spliced": false,
      "price_per_tsubo_real": 82.23695965260364,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 60,
      "floor_total": 5381,
      "cost_total": 123479,
      "price_per_tsubo": 75.85869604348633,
      "price_per_sqm": 229472.217060026,
      "cost_per_unit": 2057.983333333333,
      "floor_per_unit": 89.68333333333334,
      "yoy": -3.1049973345691595,
      "ratio_national": 1.0067039775077113,
      "rank_in_national": 10,
      "is_spliced": false,
      "price_per_tsubo_real": 77.32792664983317,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 60,
      "floor_total": 5657,
      "cost_total": 129446,
      "price_per_tsubo": 75.64456290259855,
      "price_per_sqm": 228824.46526427436,
      "cost_per_unit": 2157.4333333333334,
      "floor_per_unit": 94.28333333333333,
      "yoy": -0.28227896346257886,
      "ratio_national": 0.9749816923207594,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 75.49357575109636,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 68,
      "floor_total": 6101,
      "cost_total": 163350,
      "price_per_tsubo": 88.51021086707097,
      "price_per_sqm": 267742.9929519751,
      "cost_per_unit": 2402.205882352941,
      "floor_per_unit": 89.72058823529412,
      "yoy": 17.008027372751798,
      "ratio_national": 1.0890236002982026,
      "rank_in_national": 2,
      "is_spliced": false,
      "price_per_tsubo_real": 88.51021086707097,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 49,
      "floor_total": 5749,
      "cost_total": 139014,
      "price_per_tsubo": 79.93583076361107,
      "price_per_sqm": 241805.53139676465,
      "cost_per_unit": 2837.0204081632655,
      "floor_per_unit": 117.3265306122449,
      "yoy": -9.687447379757497,
      "ratio_national": 0.9164765209885448,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 73.80963136067504,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 53,
      "floor_total": 4991,
      "cost_total": 133728,
      "price_per_tsubo": 88.57477161290322,
      "price_per_sqm": 267938.2889200561,
      "cost_per_unit": 2523.169811320755,
      "floor_per_unit": 94.16981132075472,
      "yoy": 10.807344799905216,
      "ratio_national": 0.9760069437716618,
      "rank_in_national": 7,
      "is_spliced": false,
      "price_per_tsubo_real": 76.09516461589624,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 85,
      "floor_total": 7334,
      "cost_total": 212751,
      "price_per_tsubo": 95.89720865694028,
      "price_per_sqm": 290088.6283065176,
      "cost_per_unit": 2502.9529411764706,
      "floor_per_unit": 86.28235294117647,
      "yoy": 8.266955602254523,
      "ratio_national": 1.0018246433738176,
      "rank_in_national": 6,
      "is_spliced": false,
      "price_per_tsubo_real": 81.96342620251306,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 28,
      "floor_total": 2928,
      "cost_total": 89760,
      "price_per_tsubo": 101.34143114754097,
      "price_per_sqm": 306557.37704918033,
      "cost_per_unit": 3205.714285714286,
      "floor_per_unit": 104.57142857142857,
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      "ratio_national": 0.9328401291913047,
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      "is_spliced": true,
      "price_per_tsubo_real": 83.47729089583275,
      "deflator": 121.4,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 51,
      "floor_total": 3945,
      "cost_total": 131398,
      "price_per_tsubo": 110.10752710266159,
      "price_per_sqm": 333074.7782002535,
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      "deflator_provisional": true
    }
  ]
}