{ "area": { "code": "00000", "name": "全国", "slug": "japan" }, "structure": { "id": "rc", "name": "鉄筋コンクリート造" }, "segment": { "segment": "company", "building_type": "detached", "label": "給与住宅・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": 13, "price_per_tsubo": 204.83286526907483, "prev_price_per_tsubo": 222.55721885744515, "change_vs_prev": -7.963953575337996, "note": "Sum of monthly preliminary releases from April; replaced by the annual report." }, "years": [ { 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12535.931034482759, "floor_per_unit": 360.37931034482756, "yoy": -17.329271890051157, "ratio_national": null, "rank_in_national": null, "is_spliced": false, "price_per_tsubo_real": 124.18267746449389, "deflator": 92.6, "deflator_provisional": false }, { "fiscal_year": 2015, "units": 28, "floor_total": 9729, "cost_total": 353950, "price_per_tsubo": 120.2676914893617, "price_per_sqm": 363809.2301367047, "cost_per_unit": 12641.07142857143, "floor_per_unit": 347.4642857142857, "yoy": 4.586822544814639, "ratio_national": null, "rank_in_national": null, "is_spliced": false, "price_per_tsubo_real": 130.30085751826837, "deflator": 92.3, "deflator_provisional": false }, { "fiscal_year": 2016, "units": 39, "floor_total": 14671, "cost_total": 504701, "price_per_tsubo": 113.72336710449184, "price_per_sqm": 344012.6780723877, "cost_per_unit": 12941.051282051281, "floor_per_unit": 376.1794871794872, "yoy": -5.441465038387916, "ratio_national": null, "rank_in_national": null, "is_spliced": false, 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