The Sapporo House represents a residential expansion project completed in 1982 by the Kaoeno Architectural Office. Located in Sapporo, Hokkaido, this self-residence addition demonstrates thoughtful design principles adapted to Japan's northern climate. The project exemplifies the architectural approach of the early 1980s, balancing functional living spaces with aesthetic considerations. The expansion showcases how architects of this era addressed the challenges of extending existing residences while maintaining spatial harmony and responding to local environmental conditions. This work is notable for its integration with the original structure and its regional architectural significance.