The house is planned in a dense neighborhood of old houses in Suzaka City, Nagano Prefecture, which prospered from sericulture during the Meiji period (1868-1912). The street on all sides will be a small alley named Ukisekoji, an area designated by the Agency for Cultural Affairs as a traditional architecture preservation district. The old buildings will be utilized in this area and become part of a complex facility plan consisting of a design office and several stores.
The layout plan and shape were naturally guided by the gabled Yegata, with its gable end facing the street, based on a reading of the relationship between the main building and the stores of the time from literature on the streetscape of Suzaka City. From there, the relationship with the courtyard and surrounding buildings was reconstructed.
In a dense residential area, three simple shape operations of notch/displacement/nesting were added for an optimal interior/exterior living environment.
A garden was created in the dense area by notching a part of the Yegata. By planning the garden to be continuous from the opening of the interior space, the interior is given the moisture of plantings.
We adopted a skip floor system by shifting the floor level. This clarifies the planning for each function, and the LDK, which is the hub of daily life, is located on one floor. the LDK is placed at a height of approximately 2 m from the ground, and was designed to provide a large opening for privacy to the courtyard on the store side. The space was designed to provide sufficient lighting in a dense area, and to create a living space with a large windowsill.
Skip floors were used to create spatial continuity and make the space look like a large one-room, while at the same time nesting the Yeghata. This creates depth in the interior, and at the same time, the large windows create a pleasant space as if one were in a garden outside.
The house is designed to enjoy the combination of a “framework” that can withstand the passage of time and the changes of the times, and “materials” that will age with the homeowner while enjoying the changes over time. As mentioned in the environmental impact reduction form, the exterior walls are made of Hokushin cedar with a protective coating that tends to discolor easily, and all the windows are made of wood. In addition, taking advantage of the characteristics of the skip floor, four natural material floors were used in accordance with the plan.
Since this house is his own residence, it was a good opportunity for him to reevaluate the relationship between the act of building a building and the forest, and the way a wooden structure should be built in the richly forested region of Nagano Prefecture. The children and I went to the mountains to observe the process of cutting down the timber that would become their houses. The children were able to see where the wood for their houses came from and how it was made into their houses. The children were able to learn about the importance of using trees in order to keep the forest healthy.