{ "area": { "code": "10000", "name": "群馬県", "slug": "gunma" }, "structure": { "id": "steel", "name": "鉄骨造" }, "segment": { "segment": "all", "building_type": "rowhouse", "label": "長屋建" }, "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": 74, "price_per_tsubo": 103.9087067662566, "prev_price_per_tsubo": 97.3183072325346, "change_vs_prev": 6.772003871763573, "note": "Sum of monthly preliminary releases from April; replaced by the annual report." }, "years": [ { "fiscal_year": 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"cost_per_unit": 975.7355836849508, "floor_per_unit": 54.45710267229254, "yoy": 7.748855640656083, "ratio_national": 0.9333426794682943, "rank_in_national": 32, "is_spliced": false, "price_per_tsubo_real": 63.281537855594664, "deflator": 93.6, "deflator_provisional": false }, { "fiscal_year": 2015, "units": 922, "floor_total": 49346, "cost_total": 940331, "price_per_tsubo": 62.994707098650345, "price_per_sqm": 190558.70789932314, "cost_per_unit": 1019.8817787418656, "floor_per_unit": 53.52060737527115, "yoy": 6.353353251524929, "ratio_national": 0.9665844231981728, "rank_in_national": 20, "is_spliced": false, "price_per_tsubo_real": 67.4461532105464, "deflator": 93.4, "deflator_provisional": false }, { "fiscal_year": 2016, "units": 896, "floor_total": 48284, "cost_total": 904553, "price_per_tsubo": 61.93070710525226, "price_per_sqm": 187340.1126667219, "cost_per_unit": 1009.5457589285714, "floor_per_unit": 53.888392857142854, "yoy": -1.6890307811604721, "ratio_national": 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