{ "area": { "code": "39000", "name": "高知県", "slug": "kochi" }, "structure": { "id": "rc", "name": "鉄筋コンクリート造" }, "segment": { "segment": "all", "building_type": "all", "label": "新築住宅すべて" }, "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": 84, "price_per_tsubo": 109.27885672103487, "prev_price_per_tsubo": 111.94391768689762, "change_vs_prev": -2.3807108246084567, "note": "Sum of monthly preliminary releases from April; replaced by the annual report." }, "years": [ { 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"cost_per_unit": 1396.7441860465117, "floor_per_unit": 80.36046511627907, "yoy": 18.896834856387358, "ratio_national": 0.8159204575894794, "rank_in_national": 36, "is_spliced": false, "price_per_tsubo_real": 62.0495598934056, "deflator": 92.6, "deflator_provisional": false }, { "fiscal_year": 2015, "units": 197, "floor_total": 18261, "cost_total": 363500, "price_per_tsubo": 65.80442828979793, "price_per_sqm": 199058.10196593835, "cost_per_unit": 1845.1776649746193, "floor_per_unit": 92.69543147208122, "yoy": 14.526352205011639, "ratio_national": 0.8571819482736732, "rank_in_national": 23, "is_spliced": false, "price_per_tsubo_real": 71.29407181993275, "deflator": 92.3, "deflator_provisional": false }, { "fiscal_year": 2016, "units": 296, "floor_total": 23303, "cost_total": 341800, "price_per_tsubo": 48.488135519031886, "price_per_sqm": 146676.39359739088, "cost_per_unit": 1154.7297297297298, "floor_per_unit": 78.72635135135135, "yoy": -26.31478339802048, "ratio_national": 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