InBetween House is a collection of small cottages nestled in mountains of Karuizawa, Nagano, Japan. It was designed by Koji Tsutsui Architect & Associates as a retreat from the busy life in Tokyo. The clients also wanted a house that seamlessly blended in with its natural surroundings. To do this, Koji Tsutsui Architect & Associates used larch wood from larch trees found in the area as well as having the house built in the traditional Japanese wood construction method. The home consists of five single pitched roof cottages that vary in size depending on the cottage’s function. The cottages are set in site at 30-degree increments to best fit in with the topography. All the roofs have varying slopes and overhangs, which create spaces between the cottages that, are reminiscent of alleyways. The “connecting” roofs span the overhangs to create a single, fluid public interior spaces which can serve as the living room or circulation space and provides the feeling of being outside looking at the surrounding mountains.