The passport office require all internationally based British passport holders wishing to carry out a passport application to apply directly through their international channel application process. The timeframe for this typically varies between 4 to 6 weeks.
Applicants can however apply for same day express services if they are in the United Kingdom at the time of the application.
Whether you apply for your British passport from abroad or within the United Kingdom, the passport office require the same documents. Please see the table below to start reading about your passport application.