{"building_coverage":{"built_area_m2":105.1875,"site_area_m2":420.0,"coverage_pct":25.044642857142858,"limit_pct":50.0,"pass":true},"floor_area_ratio":{"gross_floor_m2":173.26485,"site_area_m2":420.0,"far_pct":41.25353571428571,"limit_pct":100.0,"pass":true,"designated_limit_pct":100.0,"road_limit_pct":160.0,"road_width_m":4.0},"north_slope":{"kind":"north","max_height_mm":6112,"allowed_height_mm":11531,"pass":true,"margin_mm":5511},"road_slope":{"kind":"road","max_height_mm":6112,"allowed_height_mm":14437,"pass":true,"margin_mm":8417},"daylight":{"required_ratio":0.14285714285714285,"actual_ratio":0.4593111874682027,"window_area_m2":79.58248400000002,"floor_area_m2":173.26485,"pass":true},"ventilation":{"required_ratio":0.05,"actual_ratio":0.22965559373410135,"mechanical_units":9,"pass":true},"overall_pass":true,"messages":["全項目 OK","「美しいものは長持ちする。」"],"high_district":{"district":"指定なし","max_height_mm":6112,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807,"message":"高度地区 指定なし → 適用外"},"fire_district":{"district":"指定なし","gross_floor_m2":173.26485,"stories":2,"required_grade":"規制なし","pass":true,"message":"防火 / 準防火地域 指定なし → 構造制限なし"},"energy_ua":{"climate_zone":1,"ua_w_m2k":0.3431080651655563,"standard_w_m2k":0.46,"envelope_area_m2":798.6565750000001,"wall_area_m2":395.730416,"window_area_m2":79.58248400000002,"roof_area_m2":236.71125000000004,"floor_area_m2":86.632425,"pass":true,"message":"省エネ UA 値 OK (地域区分 1): UA=0.343 ≤ 基準 0.46 W/m²K"},"sickhouse":{"habitable_floor_m2":173.26485,"habitable_volume_m3":415.83563999999996,"required_airflow_m3h":207.91781999999998,"estimated_airflow_m3h":1072.91242,"air_change_per_hour":2.5801357959601545,"pass":true,"message":"シックハウス OK: 換気回数 2.58 回/h ≥ 0.5 回/h (居室 173.3 m² / 自然 398 + 機械 675 m³/h、 機械換気 9 台)"},"neighbor_slope":{"kind":"neighbor","max_height_mm":6112,"allowed_height_mm":9223372036854775807,"pass":true,"margin_mm":9223372036854775807},"shadow":{"regulated":true,"measurement_height_m":1.5,"max_shadow_5m_h":2.083333333333333,"limit_5m_h":4.0,"max_shadow_10m_h":0.0,"limit_10m_h":2.5,"pass":true,"message":"日影規制 OK: 5m ライン 2.1h ≤ 4.0h / 10m ライン 0.0h ≤ 2.5h (冬至・測定面 1.5m)"},"site_eligibility":{"zoning":"第二種低層住居専用地域","use_allowed":true,"use_message":"用途制限: 住宅は「第二種低層住居専用地域」で建築可能","road_width_m":4.0,"frontage_m":22.5,"road_access_ok":true,"road_message":"接道義務 OK: 幅員 4.0m の道路に 約22.5m 接道 (法 43 条)","lot_area_m2":420.0,"min_lot_area_m2":null,"min_lot_ok":true,"pass":true,"message":"用途制限: 住宅は「第二種低層住居専用地域」で建築可能 / 接道義務 OK: 幅員 4.0m の道路に 約22.5m 接道 (法 43 条)"}}