Marlborough House

Marlborough House on Pall Mall in London is the international headquarters of the Commonwealth Secretariat and Commonwealth Foundation.

The house was built for Sarah Churchill, first Duchess of Marlborough, and was completed in 1711. It later became a Royal Palace and over the centuries Dowager Queens, Princes, Dukes and Duchesses have stayed in the house.

It became the Commonwealth’s headquarters in 1959 at the request of Queen Elizabeth II. It has been the venue for independence negotiations and many Commonwealth conferences, including Commonwealth Heads of Government meetings.

Download a guide

Learn more about Marlborough House and its long history, including the many famous and notable figures that have come through its doors.


Visit Marlborough House

Thank you for your interest in a tour of Marlborough House.

Unfortunately, the tours policy is currently under review here at Marlborough House and as a result tours are currently not being hosted.

Once these tours resume, this page will be updated and allow you to register your interest to join a tour group.

Thank you for your patience.


Events and protocol
Commonwealth Secretariat
Marlborough House
Pall Mall
London SW1Y 5HX
United Kingdom