A hybrid hall from the early Showa years
The Choraku-den of Tarobogu Aga Shrine is the largest of the shrine's registered buildings, about 154 square metres, and the most technically ambitious. Completed in 1930, it combines timber framing with reinforced concrete, has a basement level below its single main storey, and comes with an attached stair wing that negotiates the steep ground of Mount Akagami. Its roof mixes ceramic tile and copper sheeting.
Old craft meets new material
The interest of the Choraku-den lies in the moment it captures. In 1930 reinforced concrete was still a relatively new material in Japanese shrine construction, and here it was enlisted to plant a substantial hall on a slope that timber alone would have struggled to hold. The result is a hybrid that reads as neither wholly traditional nor wholly modern. It was listed as a Registered Tangible Cultural Property in 2019 for contributing to the historic landscape.
Purpose and place
A large hall on a mountain precinct answers a practical need, room to gather people who have climbed a long way. The stair wing is not an afterthought but the piece that makes the building usable, threading visitors up and through the changing levels of the site. Seen alongside the older timber halls nearby, the Choraku-den shows a shrine adapting its building methods across the centuries while keeping its footing on the same sacred slope.
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Q&A
- What is unusual about the Choraku-den?
- It blends timber framing with reinforced concrete, has a basement, and includes an attached stair wing, all set on a steep slope. At about 154 square metres it is the shrine's largest registered building.
- When was it built?
- In 1930 (Showa 5), when reinforced concrete was still a relatively new material for shrine buildings. It was registered as a Cultural Property in 2019.
- Why use concrete on a shrine?
- The steep, rocky ground of Mount Akagami made a large stable hall difficult in timber alone; concrete allowed a substantial building to be anchored securely.
- What is the stair wing for?
- It negotiates the site's changing levels, connecting the hall to the surrounding precinct and making the steep ground passable.
Basic Information
| Name | 長楽殿 (Choraku-den Hall) |
|---|---|
| Location | Higashiomi, Shiga Prefecture (滋賀県東近江市小脇町2247) |
| Designation | Registered Tangible Cultural Property; registered 10 September 2019 (Reiwa 1); registration no. 25-431 |
| Registration criterion | Contributing to the historic landscape |
| Date | 昭和5年（1930年） |
| Structure | hybrid timber-and-reinforced-concrete hall with a basement and a stair wing, tile and copper roofing, ~154 sq m |
| Owner | Aga Shrine (religious corporation) |
| Access / viewing | Part of the Tarobogu Aga Shrine precinct on Mount Akagami; grounds open to visitors. 742 stone steps from the base; a mid-slope car park shortens the climb. |
References
- Agency for Cultural Affairs, National Cultural Properties Database — Choraku-den Hall
- https://kunishitei.bunka.go.jp/heritage/detail/101/00012948
- Tarobogu Aga Shrine — official website
- https://tarobo.sakura.ne.jp/
- Shiga Tourism Official Site — Tarobogu (Aga Shrine)
- https://www.biwako-visitors.jp/spot/detail/1258/
Last verified: 2026.07.05