The house stands along a narrow street in a crowded town, is designed as a key itself on the façade of this house. This project is named Keyhole House because of the keyhole shape located on the facade of the entrance to the house. Mortar with sumi ink is applied to the exterior walls, and simple color coding is used with red and purple as accent colors.
The roof is triangular and a random arrangement of windows permits light to brighten the interior spaces. The red wine-colored door makes a statement, drawing your attention to the entrance of the house. There is a thin steel eave fixed to the façade of this house as if floating.