The Main Building of Takinogawa Gakuen was built in Yaho in 1928 specifically for the education of children with intellectual disabilities.
Following a tragic fire eight years prior, Fudeko and her husband, Ryoichi, designed this facility with safety and ease of evacuation in mind—featuring wide corridors, low-step slopes with rubber guards, and large windows.
Today, this Main Building is registered as a National Tangible Cultural Property.
| 名称 | 滝乃川学園 本館（石井亮一・筆子記念館） |
| 所在地 | 〒186-0015 東京都国立市矢川３丁目16番地の１ |
| Homepage | https://www.takinogawagakuen.jp/ |