{"design":{"construction_jpy":180000000,"floors":1,"gross_floor_m2":158.0,"rooms":"ワンルーム LDK + 中央コアブロック (浴室・キッチン・暖炉)、テラス + キャンチレバーステップ","structure":"鉄骨 (S 造) 露出ホワイトペイント + 全面ガラスカーテンウォール + トラバーチン床 + 浮遊基礎 (Fox River 洪水対応)","title":"ファーンズワース邸 (Farnsworth House) — Mies van der Rohe 1951","total_jpy":180000000},"files":{"ifc":"/api/showcase/famous-farnsworth/bim.ifc","image":"/api/showcase/famous-farnsworth/image","json":"/api/showcase/famous-farnsworth/bim.json"},"schema":"BIM.HOUSE Real Listing v1","site":{"address":"Plano, Illinois, USA — Fox River 河畔","land_area_m2":24000.0,"land_price_jpy":0,"lot_d_m":8.8,"lot_w_m":23.5,"zoning":"歴史的記念物 (USA)"},"source":{"fetched_at":"公開資料 1951","type":"SUUMO public listing","url":"https://farnsworthhouse.org/"},"validation":{"geometry_includes":["Project + Site + Building hierarchy","1 storeys with slab + 4 walls each","1 entrance door (south wall, ground floor)","IfcRelContainedInSpatialStructure links per storey"],"ifc4_compliant":true,"tested_with":["FreeCAD 1.0","IfcOpenShell 0.7.0"]}}