Embassy_of_the_United_States,_London

The Embassy of the United States of America in London is the diplomatic mission of the United States in the United Kingdom. It is located in Nine Elms and is the largest American embassy in Western Europe and the focal point for events relating to the United States held in the United Kingdom.
There has been an American legation in London since John Adams was appointed the first minister in 1785. The embassy building in Nine Elms overlooks the River Thames and has been opened to the public since 13 December 2017, and was formally opened in January 2018. For much of the 20th century and into the 21st, the chancery was in Grosvenor Square, Westminster, London.
Since 1955, Winfield House in Regents Park has served as the ambassador's official residence.