The Foreign Office was formed in March 1782 by combining the Southern and Northern Departments, each of which covered both foreign and domestic affairs in their respective geographical parts of the Kingdom. The two departments' foreign affairs responsibilites became the Foreign Office, whilst their domestic affairs responsibilities were assigned to the Home Office.
Construction of the present FCO headquarters began in 1861 as headquarters for the Foreign Office and finished in 1868. They were part of a complex of government buildings including also the India Office, and later also the Home Office and the Colonial Office. The Foreign Office was designed by the architect George Gilbert Scott in classical style — although he had wished it to be Gothic — and Lord Palmerston, the then Foreign Secretary. Over the years these offices became increasingly cramped due to increasing staff numbers and much of the fine Victorian interiors was covered over, especially after World War II. In the 1960s demolition was proposed, but due to a public outcry asserting their heritage value the buildings were retained and extensively refurbished.
On December 2, 2003, the FCO announced (http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1007029391629&aid=1068721705067) eight strategic priorities for the next five to ten years, in its first strategy document (http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/PreviewPage&AssetType=Page&ResolvePageId=FCO_OBJ_StrategyMain):
The Foreign and Commonwealth Office, more commonly known as the ForeignOffice (or the FCO), is the United Kingdom government department responsible for promoting the interests of the United Kingdom abroad.
The ForeignOffice was formed in March 1782 by combining the Southern and Northern Departments, each of which covered both foreign and domestic affairs in their respective geographical parts of the Kingdom.
Construction of the present FCO headquarters began in 1861 as headquarters for the ForeignOffice and finished in 1868.
The head of the ForeignOffice is termed principal secretary of state for foreign affairs and his office dates from 1782.
The secretary for foreign affairs is the official agent of the crown in all communications between Great Britaii% and foreign powers; his intercourse is carried on either through the representatives of foreign states in Great Britain or through representatives of Great Britain abroad.
The departments of the ForeignOffice are the African, American, commercial and sanitary, consular, eastern (Europe), far eastern, western (Europe), parliamentary, financial, librarian and keeper of the papers, treaties and registry.