{"$schema":"https://bim.house/spec/v1.json","_demo":true,"_disclaimer":"本データは KATA.HOUSE ブランドのデモ用標準モデルハウス記述です。実在の建築主・物件・番地を特定するものではありません。北海道虻田郡ニセコ町の典型的なスキーリゾート別荘地条件 (極寒・多雪・外国人客向け) を反映した型 (kata) 参考仕様。","_note":"KATA.HOUSE ニセコ型 — 戸建 110 ㎡ 4LDK 木造軸組 2F + ロフト、スキー / スノーボード リゾート別荘モデル。外国人客向け (英語標識・全室シャワー)、極寒地仕様 (最低 -30℃、積雪 3m、HEAT20 G3 相当)、火山灰質地盤。型式 = KATA-V1-NISEKO。","elements":[],"project":{"_reviews":{"design":{"area_sum_m2":108.4,"area_sum_match":true,"ceiling_height_compliant":true,"daylight_pass_count":5,"daylight_total_residential":5,"fixes_applied":[],"ldk_count":1,"notes":[],"residential_rooms_count":5,"review_date":"2026-05-13","reviewer":"濱田優貴 (一級建築士)","rooms_count":9},"equipment_1kyu":{"city_gas_available":true,"cold_region":true,"issues_fixed":1,"issues_found":1,"notes":"換気法28条の2 (0.5回/h, 必要145m³/h) 明記なし","recommended_elec_a":50,"recommended_hw_l":552,"recommended_vent_m3h":145,"reviewed_at":"2026-05-13","reviewer":"濱田優貴 (設備設計一級建築士 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