
Guide
Hasso-an is a traditional Japanese tea house located within Nakajima Park in Chuo-ku, Sapporo. The most striking feature of this architecture is the "eight windows" from which it derives its name. While most tea houses typically have very few windows, Hasso-an features three lattice windows, four lower windows, and one top window, totaling eight. This unique layout creates a distinctive play of light and shadow within the space. Additionally, a hanging plaque inscribed with "Bousen" is displayed at the front, holding significant meaning in the history of the Way of Tea.
The history of this tea house begins not in Hokkaido, but in Shiga Prefecture. Originally, it was located at Kobo-an within Komuro Castle, the residence of the famous tea master Kobori Masakazu (also known as Kobori Enshu) during the Edo period. After being moved through various locations including Nagahama Hachiman Shrine and Enkyo-ji Temple in Kawasaki Village, the materials were transported to Sapporo in 1919 by the businessman Kinya Mochida. It was reconstructed in its current form in Sapporo in 1925, and in 1950, it was designated as an Important Cultural Property under the Law for the Protection of Cultural Properties. In 1971, it was donated to the city of Sapporo and moved to its current location within the Japanese garden on the north side of Nakajima Park. Despite facing a difficult period when the structure collapsed under the weight of heavy snow, it was fully restored in 2008 to its current magnificent state.

The architectural centerpiece is the "central pillar" (Chubashira). This pillar uses a red pine log with its bark still attached, said to have been hand-carved by Kobori Enshu himself. The ceiling is crafted with materials woven like mats from rush leaves, offering a wonderful natural texture. The walls are made of traditional earth (Juraku-do) sourced near Kyoto, showcasing the concentration of traditional techniques in every detail. The arrangement of the windows, the small entrance known as the "nijiriguchi" (crawling-in entrance), and the garden layout still preserve the original essence of the architecture.
Nakajima Park, where Hasso-an is situated, offers a different face to visitors in every season. You can enjoy cherry blossoms in spring, fresh greenery in summer, and vibrant autumn colors in fall, all of which change the ambiance of the tea house. The best time to visit is during the daytime when natural light streams through the eight windows, creating a beautiful contrast of light and shadow that highlights the texture of the red pine pillars and the interior space.
Visitors can visually observe the essence of traditional Japanese architectural styles. It is a precious place to learn how the spirituality of the tea ceremony is reflected in architecture through the use of materials and the transition of space via the "nijiri-guchi." You can also learn about the history of relocation and the cultural background of the renowned tea master Kobori Enshu alongside the Japanese garden.
Hasso-an is nestled within the vast Nakajima Park in the heart of Sapporo. The park is a vital tourist spot featuring various historical buildings, beautiful gardens, and walking paths. It is an ideal place for a quiet stroll while enjoying seasonal flowers and peaceful pathways.
When visiting Hasso-an, please keep the following in mind: