Travel is not possible while an application is being processed
Applications will be automatically withdrawn if applicants leave the Common Travel Area
When an application has been submitted to the Home Office, they often return the applicant’s passport(s) while the application is being considered, and if they do not, the applicant can request that these are returned. While the Home Office has always recommended against travel while an application is being considered, a change in the Immigration Rules now makes clear that travel outside the UK and the Common Travel Area (Ireland, Isle of Man, Guernsey and Jersey) is not possible as it would automatically result in an application being withdrawn.
Please make clear to visa applicants that they will not be able to travel while their application is being processed. If they have any queries, please pass them on to SIT for advice.