Yes. If an applicant holds both a UK passport and a foreign passport, they may apply using their non-UK nationality. However, the agent noted that they may be asked for a Right-to-Rent code; because they hold a UK passport they will not be able to obtain such a code, and this requirement can be ignored.
Can a British passport holder who also holds a foreign passport apply to TSG using their non-UK nationality?
eligibility — answered by the TSG support team