Chancellor of the Exchequer of its interest rates. The chancellor also has oversight of public spending across Government departments. The holder of the office of Chancellor of the Exchequer is "ex officio" Second Lord of the Treasury as a member of the commission exercising the ancient office of Lord High Treasurer. As the Second Lord, his official residence is 11 Downing Street in London, next door to the residence of the First Lord of the Treasury (a title that has for many years been held by the prime minister), who resides in 10 Downing Street. While in the past both houses were private residences,
Lords Commissioners of the Treasury Service). Lords Commissioners of the Treasury In the United Kingdom there are at least six Lords Commissioners of Her Majesty's Treasury, serving as a commission for the ancient office of Lord High Treasurer. The board consists of the First Lord of the Treasury, the Second Lord of the Treasury, and four or more junior lords to whom this title is usually applied. Strictly they are commissioners for exercising the office of Lord High Treasurer (similar to the status of the Lords Commissioners of the Admiralty exercising the office of Lord High Admiral until 1964, when the Queen resumed the office).