UK transit visa on arrival for Italian refugee

Question

I hope doing well I have Italian refugee status travel documents I'm gonna travel from Stockholm to Rome via British airways but have long layover in London Heathrow My question is 1st Do i need transit visa to go outside airport and just explore city 2nd if i do require visa can i get that visa on arrival to UK on the airport from British border control officer

Answer 1

The UK does not issue visas on arrival. You will need a visa to leave the airport. From https://www.gov.uk/government/publications/uk-visa-requirements-list-for-carriers/uk-visa-requirements-for-international-carriers

“Holders of non-national and refugee travel documents

If the passenger holds a refugee travel document issued by the UK they do not need a visa. If the passenger holds any other non-national or refugee travel document they need a visa to enter the UK.

Whether holders of non-national and refugee travel documents require a direct airside transit visa (DATV) depends on their original nationality, and whether they qualify for one of the exemptions listed”