{ "area": { "code": "33000", "name": "岡山県", "slug": "okayama" }, "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": 95, "price_per_tsubo": 116.29114667574932, "prev_price_per_tsubo": 124.4485101206379, "change_vs_prev": -6.55481004712793, "note": "Sum of monthly preliminary releases from April; replaced by the annual report." }, "years": [ { 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231223.0067611859, "cost_per_unit": 2925.5189573459716, "floor_per_unit": 126.52369668246446, "yoy": 4.329332369852512, "ratio_national": 0.9653650952907492, "rank_in_national": 13, "is_spliced": false, "price_per_tsubo_real": 81.66396405139538, "deflator": 93.6, "deflator_provisional": false }, { "fiscal_year": 2015, "units": 885, "floor_total": 112751, "cost_total": 2605713, "price_per_tsubo": 76.3979031518124, "price_per_sqm": 231103.31615684117, "cost_per_unit": 2944.3084745762712, "floor_per_unit": 127.40225988700566, "yoy": -0.05176414147591846, "ratio_national": 0.9440068374782804, "rank_in_national": 22, "is_spliced": false, "price_per_tsubo_real": 81.79647018395332, "deflator": 93.4, "deflator_provisional": false }, { "fiscal_year": 2016, "units": 899, "floor_total": 110791, "cost_total": 2588884, "price_per_tsubo": 77.24731104837035, "price_per_sqm": 233672.77125398273, "cost_per_unit": 2879.737486095662, "floor_per_unit": 123.23804226918799, "yoy": 1.111820955177345, 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