If you lose or have your passport stolen, whether in the UK or abroad you will then need to do following:
If you are in the UK the closest embassies are in London however if you are outside the UK check on your own government website for details of the nearest office. Some embassies are able to issue new passports here in the UK while others only issue them in your home country and will only give you a travel document. Processing times vary between embassies so check with them directly.
If you are in the UK and you had a visa which was a sticker
in your old passport then you need to apply for a 'Transfer of Conditions'.
If you are outside the UK it is likely to take you some time to obtain the
necessary replacement visa to re-enter the UK so you may need to extend your
time in Europe while you complete the following steps:
You will need to register an account with this website (if you do not already have one) then click on "Apply for myself" to create your application form. You will then complete/update your details, including your current location. Note the advice on this page pertinent to the country from which you are applying; in some countries there are supplementary forms / online processes to complete.
You will then complete the “Select Visa Type” section, complete this section as advised below. This is very important to ensure that the correct form is generated.
You should then complete the online form and submit it, pay for it, and make an appointment according to the local instructions for your nearest UK embassy or visa application centre. A successful entry clearance application will give you a replacement sticker, with the same end date and conditions.
If your immigration permission was about to expire (within 4 weeks of you losing your passport or ID card) you don't need to apply on TOC or on the BRP (RC) form and you can make a new application to extend your stay in the UK.
