UK Family Visas UK Family Visas Documents Required for Marriage Visa: Valid Passport.2 Passport size Colour Photographs.Back Statements of last 6 Months.Documents about your Future Residence.UK | Marriage VisaYou can apply for a Marriage Visitor visa if You want to get married in the UK. You want to give notice of a marriage in UK. You are not planning to stay or settle in the UK after your marriage.