Osaka Shoko Shinkin Bank Head Office (大阪商工信用金庫 本店ビル)

The head office stands on the site of an older building, on whose roof the architect Kenji Imai (今井兼次) had made a large relief, "The Fantasy of the Spinning Wheel" (糸車の幻想), using the process he called "phoenix mosaic": about 12 m high and 18 m wide, and more than 2.5 m deep. For the new building, designed by Tadao Ando and completed in 2017, the work was remade with the latest techniques; only a few fragments of the original remain.

The building is part of the Osaka Selection of the city's "Living Architecture Museum" festival.

The building has twelve storeys above ground and stands about 60 m high. On a trapezoidal site, it combines a triangular upper part with a lower rectangular base. The base-isolated structure rests, for the triangular plan, on a three-dimensional mega-truss developed for the purpose, with CFT columns (concrete-filled steel tubes); it received the CFT structural award for fiscal 2018. Takenaka, which built the tower, designed its structure and services.

Kenji Imai's relief, reconstructed with 3D techniques, was set in the low part of the building, on the first-floor water garden, where anyone can approach it.

The building houses the bank's head office and offices.

It is a working bank building: the relief can be seen from the first-floor water garden, which is open to all.