Taketa's Oldest Timber Building
The Ganjoin Temple Main Hall (Aizendo) (願成院本堂（愛染堂）) is a small square Buddhist hall of 1635 in Taketa, Taketa City, Oita Prefecture, and was designated an Important Cultural Property on December 19, 1988 (Agency for Cultural Affairs).
The Agency records a single-storey hall three bays square under a pyramidal roof of hongawara tiles, with its ridge tablet designated alongside; designation number 02210.
Aizendo on the Slopes of Hachimanyama
The Ganjoin Temple Main Hall stands halfway up Mount Hachiman, west of the centre of Taketa, and is known locally as Aizendo (Agency for Cultural Affairs). It is a fairly small hall, three bays square.
The Japan Tourism Agency's interpretive text says it was built in 1635 as part of a temple called Daishōin and is the oldest timber building in Taketa. In 1874 it became the main hall of Ganjōin, the temple that had been the religious centre of Oka Castle.
Why It Is an Important Cultural Property
The Agency notes that, small as it is, the hall uses full Zen-style bracket sets projecting three steps and fan-shaped rafters, adds carved demons and masks to some brackets, and has the unusual feature of no beams laid over the wall plates. As an early Edo building with distinctive structure and detail, it was designated an Important Cultural Property on December 19, 1988.
What to Look For
Look up at the demons and masks carved into the brackets under the eaves and the rafters fanning out at the corners (Agency for Cultural Affairs). Inside, the upper wall panels are painted in rich colours with celestial beings and patterns.
Visiting
The Japan Tourism Agency's text says that because the 17th-century wall paintings are fragile, the interior opens only twice a year, in spring and autumn. The exterior can be seen in the temple grounds.
Q&A
- When was the Ganjoin Temple Main Hall built?
- In 1635 (Agency for Cultural Affairs).
- Can I go inside Aizendo in Taketa?
- Only twice a year, in spring and autumn, to protect the wall paintings.
- What should I look for at Aizendo?
- The carved demons in the brackets, the fan rafters and the painted celestial beings inside.
- Where is the Ganjoin Temple Main Hall?
- On the slopes of Mount Hachiman, west of central Taketa, Oita Prefecture.
- When was the Ganjoin Temple Main Hall (Aizendo) designated an Important Cultural Property?
- On December 19, 1988 (Agency for Cultural Affairs).
Basic Information
| Name | Ganjoin Temple Main Hall (Aizendo) (願成院本堂（愛染堂）) |
|---|---|
| Location | Taketa, Taketa City, Oita Prefecture |
| Designation | Important Cultural Property (Structure) |
| Year Designated | Designated 1988/12/19 (Showa 63) |
| Quantity | 1 building (with 1 ridge tablet) |
| Dimensions | 3 by 3 bays, single storey, pyramidal hongawara tile roof |
| Owner | Ganjoin Temple |
| Public Access | Exterior visible; interior open twice a year (spring and autumn) |
References
- Ganjoin Temple Main Hall (Aizendo) (Database of National Cultural Properties, Agency for Cultural Affairs)
- https://kunishitei.bunka.go.jp/heritage/detail/102/3595
- Aizendo Hall (Japan Tourism Agency multilingual commentary database)
- https://www.mlit.go.jp/tagengo-db/en/R5-00415.html
Last verified: 2026.10.15