<Tr> <Td_colspan="2"> Location of Embassy of the United States, London in Greater London </Td> </Tr> <P> The Embassy of the United States of America in London is the diplomatic mission of the United States in the United Kingdom . It is the largest American embassy in Western Europe and the focal point for events relating to the United States held in the United Kingdom . </P> <P> The new embassy in Nine Elms, London has been open to the public since 13 December 2017, and was formally opened on 16 January 2018 . From 1960 to 2018, it was located in the London Chancery Building in Grosvenor Square, Westminster, London . </P> <P> The American legation in London was first situated in Great Cumberland Place, later moving to Piccadilly, 98 Portland Place (1863--1866), and 123 Victoria Street in Westminster (1883--1893). The legation was upgraded to an embassy in 1893 and remained at Victoria Street until 1912, when it moved to 4 Grosvenor Gardens . In 1938, the embassy was moved to 1 Grosvenor Square (Macdonald House) (which also used to host part of the Canadian High Commission). </P>

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