Commonwealth Secretariat

The Commonwealth Secretariat is the main intergovernmental agency and central institution of the Commonwealth of Nations. It is responsible for facilitating co-operation between members; organising meetings, including the Commonwealth Heads of Government Meetings (CHOGM); assisting and advising on policy development; and providing assistance to countries in implementing the decisions and policies of the Commonwealth.

The Secretariat has observer status in the United Nations General Assembly. It is located at Marlborough House in London, the United Kingdom, a former royal residence that was given by Queen Elizabeth II, Head of the Commonwealth at the time. Provided by Wikipedia