The Nippon Fire and Marine Insurance Karuizawa Dormitory, completed in 1986, stands as a notable example of late twentieth-century residential architecture in Japan's mountain resort area. Designed by the Ebihara Architectural Design Office, this dormitory building showcases thoughtful integration with Karuizawa's distinctive landscape and climate. Located in Nagano Prefecture, the structure demonstrates the architectural considerations necessary for accommodating residents in this elevated alpine setting. The building's design reflects both functional requirements for dormitory living and aesthetic sensibilities appropriate to its prestigious location. This work represents an important contribution to Karuizawa's architectural heritage during a period of significant development in the region.