Granite and Brown Tiles

The granite here was once part of the original hot spring, carrying the character of that history. Rather than replacing the material itself, custom-colored brown tiles were introduced around it—changing the styling of the surroundings while leaving the stone untouched—drawing out something new without losing the sense of the past.

A Line Between Finish and Structure

At 2,100mm above the floor, the finish changes with tiles below and exposed concrete above. The ceiling leaves beams and pipes deliberately uncovered, opening the space upward too. A single line running horizontally across the entire bathroom invites you to enjoy the space as you bathe.

Signage that Highlights the Architecture

Signs indicating “Onsen” and “Sauna” are positioned to straddle the line where the finish changes—their treatment shifting across the tiled and exposed concrete surfaces to visually complement the architecture. The letterforms were gathered from signage found at the facility that once occupied this site.