Kodomari Fuji, guesthouse in Fujimi (小泊Fuji)

The commission dates from 2010, when the management of the company that now runs the place, drawn to Fujimori's work, asked him to design a lodging. Construction began in the thirteenth year of the project, and the house opened on 20 August 2023.

A crowdfunding campaign launched in November 2022 helped pay for the copper roof. In return, workshops let backers bend the copper sheets for the roof by hand and char the cedar boards for the walls, with 150 attendances in all.

The house is a single long, narrow storey of 63 m², on a 4,000 m² plot with a small rice paddy and a garden, from which the Japanese Southern Alps, the Yatsugatake range and Mount Fuji can be seen. The building stretches out like a ship, the countryside of rice fields standing in for the sea; Kodomari means "small harbour".

The roof is covered in hand-bent copper and a cherry tree is planted on it, echoing a three-hundred-year-old weeping cherry, the emblematic tree of the area. The outer walls are charred cedar. Inside, the walls are lime-plastered; the floor and the furniture, which Fujimori also designed, are chestnut. The house consists of a living room opening onto a timber deck, and a bedroom.

The house is rented whole to a single group per day, of five people at most, breakfast included and prepared by the guests themselves; guests can also cook with their own provisions.

Only guests may enter the plot: there are no visits for anyone else, including a guest's acquaintances. The address is given only at booking, which is made online on the operator's website.

From Kobuchizawa station, allow about ten minutes by taxi; there is no shuttle. There are many steps, and the building is not suited to visitors with reduced mobility.