{
  "area": {
    "code": "11000",
    "name": "埼玉県",
    "slug": "saitama"
  },
  "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": 430,
    "price_per_tsubo": 120.00614457878903,
    "prev_price_per_tsubo": 116.23712147623063,
    "change_vs_prev": 3.2425296279632505,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 2638,
      "floor_total": 342813,
      "cost_total": 7989986,
      "price_per_tsubo": 77.04846612858906,
      "price_per_sqm": 233071.26625886417,
      "cost_per_unit": 3028.8043972706596,
      "floor_per_unit": 129.9518574677786,
      "yoy": null,
      "ratio_national": 1.0336808118747272,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 87.75451723073925,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 2588,
      "floor_total": 340591,
      "cost_total": 8225494,
      "price_per_tsubo": 79.83697693203872,
      "price_per_sqm": 241506.4989973311,
      "cost_per_unit": 3178.320710973725,
      "floor_per_unit": 131.60394126738794,
      "yoy": 3.6191645902409197,
      "ratio_national": 1.0478575830892118,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 88.4130420066874,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 2029,
      "floor_total": 264380,
      "cost_total": 6606133,
      "price_per_tsubo": 82.6026492551252,
      "price_per_sqm": 249872.6454346017,
      "cost_per_unit": 3255.8565795958602,
      "floor_per_unit": 130.30064070970923,
      "yoy": 3.464149607569378,
      "ratio_national": 1.0432280660534072,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 88.25069364863805,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 1958,
      "floor_total": 255215,
      "cost_total": 6530384,
      "price_per_tsubo": 84.58781076096625,
      "price_per_sqm": 255877.75013224143,
      "cost_per_unit": 3335.2318692543413,
      "floor_per_unit": 130.34473953013278,
      "yoy": 2.403266146718508,
      "ratio_national": 1.0452050178261558,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 90.56510788112018,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 2062,
      "floor_total": 266717,
      "cost_total": 6912402,
      "price_per_tsubo": 85.67488914309925,
      "price_per_sqm": 259166.15738779306,
      "cost_per_unit": 3352.2803103782735,
      "floor_per_unit": 129.3486905916586,
      "yoy": 1.2851477918076615,
      "ratio_national": 1.0375218973488227,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 91.72900336520262,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 1870,
      "floor_total": 238264,
      "cost_total": 6324066,
      "price_per_tsubo": 87.74315105152267,
      "price_per_sqm": 265422.64043246146,
      "cost_per_unit": 3381.853475935829,
      "floor_per_unit": 127.4139037433155,
      "yoy": 2.4140818028592914,
      "ratio_national": 1.0374494794906912,
      "rank_in_national": 3,
      "is_spliced": false,
      "price_per_tsubo_real": 92.16717547428853,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 1975,
      "floor_total": 254200,
      "cost_total": 6914061,
      "price_per_tsubo": 89.91516016203776,
      "price_per_sqm": 271992.95830055076,
      "cost_per_unit": 3500.7903797468352,
      "floor_per_unit": 128.70886075949366,
      "yoy": 2.475417265604807,
      "ratio_national": 1.0386917878101611,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 91.65663625080302,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 1750,
      "floor_total": 225053,
      "cost_total": 6303115,
      "price_per_tsubo": 92.58607766103985,
      "price_per_sqm": 280072.4718177496,
      "cost_per_unit": 3601.78,
      "floor_per_unit": 128.60171428571428,
      "yoy": 2.9704862830570278,
      "ratio_national": 1.0322680379591636,
      "rank_in_national": 4,
      "is_spliced": false,
      "price_per_tsubo_real": 92.40127511081822,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 1644,
      "floor_total": 209033,
      "cost_total": 5769665,
      "price_per_tsubo": 91.24540555964847,
      "price_per_sqm": 276016.94469294325,
      "cost_per_unit": 3509.528588807786,
      "floor_per_unit": 127.14902676399026,
      "yoy": -1.448027754561132,
      "ratio_national": 0.9908302318116731,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 91.24540555964847,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 1809,
      "floor_total": 232604,
      "cost_total": 6627979,
      "price_per_tsubo": 94.19746306344689,
      "price_per_sqm": 284946.90547024127,
      "cost_per_unit": 3663.8911000552794,
      "floor_per_unit": 128.58153676064123,
      "yoy": 3.2352944081865065,
      "ratio_national": 0.992270689727761,
      "rank_in_national": 11,
      "is_spliced": false,
      "price_per_tsubo_real": 86.97826690992326,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 1572,
      "floor_total": 205166,
      "cost_total": 6209306,
      "price_per_tsubo": 100.04904166255618,
      "price_per_sqm": 302647.9046235731,
      "cost_per_unit": 3949.940203562341,
      "floor_per_unit": 130.51272264631044,
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      "ratio_national": 0.9885960866911968,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 85.95278493346751,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 1256,
      "floor_total": 160836,
      "cost_total": 5262620,
      "price_per_tsubo": 108.16680699470268,
      "price_per_sqm": 327204.10853291553,
      "cost_per_unit": 4189.984076433121,
      "floor_per_unit": 128.05414012738854,
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      "ratio_national": 0.9892797313031085,
      "rank_in_national": 19,
      "is_spliced": false,
      "price_per_tsubo_real": 92.45026238863477,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 1178,
      "floor_total": 150606,
      "cost_total": 5082720,
      "price_per_tsubo": 111.56530914306202,
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    {
      "fiscal_year": 2025,
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  ]
}