Plan the documents as well as the deposit
An overseas application may involve income and banking records from another country, evidence of residence and an explanation of the source of your deposit. The required format and any translation or certification depend on the lender and legal checks. Establish what is needed before arranging documents, rather than assuming UK application requirements apply unchanged.
Consider currency movements and the practical costs of owning UK property while abroad. Tax and legal questions can arise in more than one country, so obtain appropriate independent advice. This page concerns UK property: buying a home overseas usually needs separate international arrangements. Availability of any VFS overseas-property referral must be confirmed; it should not be assumed from the UK expat service.