The former Aizawa Family Residence was built in three phases. It is said that it was built initially in Nagakura Village (present Hitachi-Omiya City, Ibaraki Prefecture) as a house of a yamabushi or a hermit. It has two rooms, an inner drawing room and a middle room.
In the mid-1700s, it was moved to Naka City, where a room with a wooden floor was added and used for medical practice.
Later, the earthen floor was also added to form a typical private house as it is now. This is a large, well-coordinated, and beautiful private house.
The inner drawing room has an alcove, shelves, and a writing alcove, and its thin beams and other building materials give an impression of a sukiya-style tea ceremony room.

※A yamabushi is a hermit, an ascetic priest who confines himself in the mountains. Many yamabushi used to live in this region.

Changes this house has undergone

• Phase I…Built as a house of a yamabushi in Nagakura Village (currently Hitachi-Omiya City)
• Phase II…Moved to present Kounosu, Naka City and a room with a wooden floor was added
• Phase III…The earthen floor was added to form the current state of the house