Yano Aoyama Architecture Design Unveils Onodatesho Pavilion for Japan's 76th National Tree Planting Festival

Yano Aoyama Architecture Design has designed the Onodatesho pavilion for Japan's 76th National Tree Planting Festival, scheduled for 2026 in Matsuyama. The 80 m² ceremonial structure will host the Emperor and Empress as the centerpiece of the annual event, which honors forest preservation. Curated by Miwa Negoro, the project team includes lead architects Aoyama Eriko and Yano Toshihiro, with design team member Nishiyama Rin. Photographs are by Nishikawa Masao. Since 1950, Japan has commissioned a temporary state architecture work each year for the festival, a significant tribute to forest conservation that is rarely publicized outside the archipelago. By tradition, the pavilion is dismantled shortly after the festivities conclude. The project falls under the Pavilion, Community category.