British Citizenship by Double Descent

There are provisions in British nationality law allowing a claim from a grandparent or great grandparent. It's a complex area, and any claim from a grandparent would be termed a Non-Standard route to British Citizenship and (in most cases) requires specialist advice*.

We cover three scenarios relevant to a claim:

  • Children Under 18

  • Adults Born After 1 Jan 1949

  • Adults Born Before 1 Jan 1949

Children Under 18 - Prospects are good, but you MUST TAKE ACTION before they're 18.

Adults Born After 1 Jan 1949 - Lots of different scenarios, here are some:

Adults Born Before 1 Jan 1949 - Prospects are not good, but here are some:

Philip Gamble & Partners are a UK Immigration and British Nationality firm based in London. Philip Gamble, the Founder and Managing Partner, specialises in complex British Nationality claims, including those involving a UK-born grandparent or great grandparent.

British Nationality Assessment

Former British Territories include:

How do I find out if I have a claim to British Citizenship by Double Descent?

Given the complexities of British nationality legislation, and because we handle hundreds of complex enquiries every day, we have developed a simple 4 STEP PROCESS as the most effective way of giving you the answer you’re looking for.


The steps are as follows:

  • Step 1: Standard vs Non-Standard. Determine whether you have a Standard claim to British Citizenship. You have a Standard claim if you were born in the UK before 1983, a parent was Naturalised before your birth, or you have a parent born in the UK before 1983 (provided that your parents were married at the time of your birth). All other claims are considered Non-Standard.
  • Step 2: Nationality Assessment: If you do NOT have a Standard Route (as determined in Step 1 above), complete our FREE on-line Nationality Assessment. Your input is filtered against the criteria of hundreds of Non-Standard British nationality solutions that we know of. Your Results Page - the final page on the assessment - will set out all your possible solutions.
  • Step 3: British Passport Review. From your Results Page (reached in Step 2), you can instruct Philip Gamble (our founder and senior partner, and widely regarded as the world's leading expert on the subject) to review your family tree that you create in Step 2. By ordering this FREE review, you are asking Philip for his opinion on your chances of claiming British Citizenship. Philip will respond by email with a Definite, Likely, Possible, Unlikely or Remote answer.
  • Step 4: Status Trace. You instruct Philip Gamble and his team of specialists in London to review copies of your family documents and research your rights to British Citizenship. After searching for any possible way in which you can qualify, they will write a detailed Nationality Report, giving you a Yes/No answer. A fee of £350 applies.

What should I do NOW?

To avoid incurring unnecessary research or application fees at this point, we suggest you complete Steps 2 and 3 by:

  1. Completing our FREE online Nationality Assessment
  2. Ordering our FREE British Passport Review

You will receive a series of emails, setting out clearly the solutions that you appear to qualify for, as well as Philip’s response to your British Passport Review. Once you have completed these two steps, we will contact you by phone or email and discuss your nationality situation and talk you through what steps you can take.

British Nationality Assessment

Key Terms

British Citizenship by Double Descent
British Citizenship Double Descent
Double Descent British Citizenship