Guida
The Former Shimoiichi Unjō-ya, located in Yoichi Town, Hokkaido, is an extremely significant historical building that preserves the history of Edo-period trade. This structure is the remains of a "Unjō-ya" (a trading house) established by the Matsumae Clan. As the only surviving Unjō-ya in Hokkaido, it is designated as both a National Important Cultural Property and a National Historic Site. It served as a vital hub for trade between the Japanese (Wajin) and the Ainu people, providing a tangible look at the social structures and economic activities of that era.
The building's history dates back to 1853, having been constructed or renovated by Takeya Rinchozaemon, a merchant under the contract system of the Yoichi district. An Unjō-ya was a facility managed by merchants who were tasked with overseeing trade with the Ainu people on behalf of the Matsumae Clan. While many such structures once existed across Ezo (modern-day Hokkaido), this is the only one that remains in its original form. It was designated as an Important Cultural Property in 1971 and a National Historic Site in 1973, marking it as a vital piece of Japanese cultural heritage.
The most striking feature of the building is its architectural style and scale. It features a gabled roof (kirizuma-zukuri) with a horizontal entrance (hirairi) and a massive stone-weighted roof. The structure is vast, with a frontage of approximately 40 meters, a depth of 16 meters, and a total floor area of 534 square meters. Inside, you can see massive, thick pillars and beams that have survived the centuries. The interior showcases traditional designs such as lattice windows and paper-covered sliding doors. Furthermore, the rooms flanking the corridors contain life-sized dolls representing the managers and Matsumae Clan officials, providing a visual and educational way to understand the social hierarchy and daily life of the time.
The facility is primarily open from mid-April to mid-December. The most recommended time to visit is between May and October, when the surrounding natural environment is lush and beautiful. The opening hours are from 9:00 to 16:30. Visiting during the bright daylight hours allows you to truly appreciate the texture of the heavy beams and pillars, as well as the expansive, historic atmosphere created by the natural light streaming through the windows.
Beyond just viewing a building, visitors can learn about the mechanics of Edo-period trade. By observing the historical dolls and the massive architectural components up close, you can gain a deeper understanding of the economic systems and social structures of the Ezo region. Walking through this historic space allows you to feel the weight of history and the profound relationship between the Japanese and the Ainu people.
Yoichi Town is home to various other historical sites and cultural facilities. This site is situated in an area where historical landscapes are well-preserved, making it a perfect stop on a travel route exploring the history of Hokkaido's development and maritime trade.
As this is a precious historical structure, visitors are asked to observe strict etiquette. Please be careful not to touch the exhibits or the building's structure to preserve its integrity. Admission is 300 yen for adults and 100 yen for students (elementary to high school). From May to November, volunteer guides may be available to provide explanations; however, advanced reservation is recommended. Please contact the Yoichi Fisheries Museum for details. We recommend wearing comfortable walking shoes as you will be exploring the historical grounds.