The UK will only accept a change to State of Licence Issue if the applicant can show 'Normal Residency'.
JAR–FCL 1.070 - Normal residency
Normal residency means the place where a person usually lives for at least 185 days in each calendar year because of personal and occupational ties or, in the case of a person with no occupational ties, because of personal ties which show close links between that person and the place where she or he is living.
It doesn't matter what your nationality, you need to convince the UK Authority that you are resident in the UK for at least 185 days each year before they will agree to become your State of Licence Issue.