The area of the premises of the embassy and ambassador's residence were originally mostly unoccupied with the exception of Dumbarton House and Woodley Mansion. After various ownership transfers between American officials, the Swiss government purchased the land in 1941 for their legation. This was upgraded to an embassy in 1953. A new chancery was built in 1959, while the former chancery, known as Single Oak, become the residence of the ambassador before it was demolished and replaced in 2004 with a new, modernist house meant to conjure the grey-and-white scenery of the Alps.[2] The former ambassador Jacques Pitteloud started an ongoing project to revitalize the grounds and restore native plants and wildlife in 2020.[3]
1 The Italian Economic, Trade and Cultural Promotion Office is Korea's representative office in Taiwan, which functions as an informal diplomatic mission.