British Nationality

British Nationality could be obtained through your birth, or through the birth of any one of your parents or grandparents, in the British Indian Ocean Territory (Chagos). This arises because of Britain's relationship with Chagos and Britain's Colonial history.

To determine what form of British Nationality you might have, an analysis of your family's history must be done, and then applying it to the Nationality laws governing the British Indian Ocean Territory that have been passed over the years.


Between 1814 and 31.12.1948, the area came within the Crown’s Dominions. From 01.01.1949 until 07.11.1965, it was part of the UK and Colonies as part of Mauritius. From 08.11.1965 until 31.12.1982, it fell within the UK and Colonies as the British Indian Ocean Territory. From 01.01.1983, it is a British Dependent Territory.

Click here for more information on the status of Citizen of the United Kingdom & Colonies (CUKC), a status achieved by birth in the Colony.

Ask Philip Gamble whether you (or your children) have a claim to British nationality.

Learn more about these routes to British Nationality: is a specialist UK Nationality and British Citizenship site offering an online search and assessment. Claims to hold a British Passport can be complex and the site offers a quick, simple search to give you the answers. While many people qualify for the UK Ancestry Visa based on holding a Commonwealth passport with a UK born grandmother or grandfather, we have found that if you have a grandparent born in the UK, or if your mother is British or your father is British, then there are several scenarios where you can claim British Nationality and the right to hold a British Passport. This stems from Britain’s collection of British Colonies, British Protectorates and British Protected States in the middle of last century and the Nationality rules concerning what are now the countries of the Commonwealth.