{ "area": { "code": "06000", "name": "山形県", "slug": "yamagata" }, "structure": { "id": "steel", "name": "鉄骨造" }, "segment": { "segment": "all", "building_type": "detached", "label": "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": 40, "price_per_tsubo": 134.17331665263157, "prev_price_per_tsubo": 121.77887173390558, "change_vs_prev": 10.177828667856787, "note": "Sum of monthly preliminary releases from April; replaced by the annual report." }, "years": [ { 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222164.73283203028, "cost_per_unit": 3098.1180555555557, "floor_per_unit": 139.45138888888889, "yoy": 3.6558109849416542, "ratio_national": 0.9361460458454406, "rank_in_national": 27, "is_spliced": false, "price_per_tsubo_real": 78.46473847743562, "deflator": 93.6, "deflator_provisional": false }, { "fiscal_year": 2015, "units": 189, "floor_total": 26387, "cost_total": 600502, "price_per_tsubo": 75.23149681964604, "price_per_sqm": 227574.9422063895, "cost_per_unit": 3177.259259259259, "floor_per_unit": 139.6137566137566, "yoy": 2.435224216460008, "ratio_national": 0.9388155908523617, "rank_in_national": 27, "is_spliced": false, "price_per_tsubo_real": 80.54764113452467, "deflator": 93.4, "deflator_provisional": false }, { "fiscal_year": 2016, "units": 193, "floor_total": 24605, "cost_total": 590253, "price_per_tsubo": 79.30308737533022, "price_per_sqm": 239891.48547043285, "cost_per_unit": 3058.3056994818653, "floor_per_unit": 127.48704663212435, "yoy": 5.412082342911617, 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