This project was to consolidate two old kindergartens and establish the Hanayama Certified Child Center as part of the policy to support education and optimize public facilities in response to the declining birthrate, aging population, and population decline.

The new child center was designed in an L-shape encompassing the playground's southeast side (part of the existing kindergarten). The main office, entrance, and classroom for children ages 0-2 are located on the west side, and the playroom and classroom for children ages 3-5 are located on the north side. The hinged portion of the L-shape was designed as a two-story building with a lunchroom on the first floor and a childcare support room on the second floor.

Each room was given a roof to make it look like a Satoyama village. The younger children's house on the west side has a square roof, the older children's house has a gabled roof with a north-south ridge, and an annex was built to connect these roofs. In front of the rooms are a corridor and an open veranda, each 1.8 meters wide, with plenty of eaves space beyond. Like the farm families of the past, when the children commuted here, they came in and out of the porch to play in the playground.

The basic structure of the building is made of wood, and the two-story section is made of concrete. Japan is an earthquake-prone country, so the building must be able to withstand earthquakes. The seismic elements are distributed and arranged similarly to a reinforced concrete structure. As a result, the shed facing the playground is open and free of bracing or walls, which was common in Japan in the past. This child center is expected to fully utilize the appeal of wooden architecture and become a driving force for the shift to wooden public facilities.