Guide
The Kosai-ke Residence is a historic house designated as an Important Cultural Property, located in the Oku-Iya area of Miyoshi City, Tokishima. This residence is a prime example of the small-scale traditional dwellings that developed uniquely in the Iya region. The exterior is characterized by a heavy, thick thatched roof and a unique structural feature called 'Hishagi-take'—split bamboo used to protect the earthen walls. The layout also reflects the lifestyle of the era, notably with the placement of the front latrine in the center of the building's front side.
This residence has a fascinating history, having been relocated to its current site from a different location than the present-day Higashi-Iya Sugao village. The architectural style serves as a textbook example of the small-scale dwellings that were once common in this region. Every detail of the building reflects the ingenuity of the people who lived here, utilizing traditional Japanese construction techniques to thrive within a harsh and demanding natural environment.
The greatest draw is the striking exterior. The heavy texture of the thatched roof combined with the unique texture of the Hishagi-take bamboo covering the walls epitomizes the quintessential Japanese rural landscape. The placement of the front latrine is another fascinating element for those interested in understanding historical lifestyles and social customs. Please note that access to the interior of the building is restricted; visitors can observe the architecture from the exterior only.
Surrounded by the untouched nature of Oku-Iya, this site offers a different face in every season. You can witness how the traditional architecture blends seamlessly into the changing scenery—from the lush greenery of summer and the vibrant colors of autumn foliage to the serene, snow-covered landscapes of winter. During daylight hours, the textures of the thatched roof and the intricate details of the bamboo-protected walls are most clearly visible.
The primary activity here is the observation of historical architecture. While you cannot enter the house itself, you can immerse yourself in the 'original landscape' of Japan. It is a wonderful place to spend a quiet moment observing how traditional architectural forms harmonize with the surrounding natural environment.
The area is rich with other historical structures and natural beauty. Nearby, you can find other cultural assets like the Kimura-ke Residence, as well as the breathtaking Oboke and Iya gorges. The Oku-Iya area is part of a beautiful route where you can explore the traditional Japanese 'Satoyama' landscape and mountain scenery.
Please wear comfortable walking shoes, as the surrounding area is a natural environment with unpaved paths. Since the visit is limited to the exterior, please be mindful of your photography to ensure you do not disturb the peaceful atmosphere. As there are no fees for viewing the exterior, no payment is required, but please ensure you have arranged your own transportation as public transport is limited.