11 Downing Street in London, also known colloquially in the United Kingdom as Number 11, is the official residence of the Chancellor of the Exchequer (who traditionally also has the title of Second Lord of the Treasury).

[4][5][6] Current Prime Minister Keir Starmer, his wife Victoria, and their two children are expected to live above Number 11.

The building overlooks St. James's Park and Horse Guards Parade and consists—from left to right—of Numbers 12, 11 and 10.

[15] Following the 2010 general election, the incoming prime minister, David Cameron, moved into 11, and George Osborne chose to remain in his Notting Hill home.

[17] Boris Johnson lived in Number 11, instead of his first and second Chancellor (Sajid Javid and Rishi Sunak, respectively).