Tsuruyama-so is a residential project completed in 2007, designed by the renowned architectural firm Atelier One. Located in Karuizawa, Nagano Prefecture, this residence exemplifies contemporary Japanese residential design principles. The project showcases Atelier One's distinctive approach to creating intimate living spaces that harmoniously blend with their natural surroundings. Through thoughtful spatial planning and material selection, Tsuruyama-so demonstrates how modern architecture can respond sensitively to the landscape while meeting the functional needs of its inhabitants. The completed work stands as a testament to the firm's commitment to refined, context-aware design.