I understand from the gov.uk website that there is such a thing as a Long-term visit visa to the UK. The site says that in order to get one of these, the applicant has to prove he or she needs to regularly visit the UK over a longer period than is allowed by standard visitor visas.
It's very difficult to get a Long-Term visitor visa... in fact, I don't recall the last time someone on this forum was granted one.
I do recall one person applied mistakenly for one a few years ago, because they thought it would allow them to stay for longer than 6 months... they were refused
because they were planning to stay for longer than 6 months and also because they had no good reasons for needing to travel regularly (they were in a relationship with a UK citizen and I don't think they had ever been to the UK before).
In order to get one, you usually have to show a history of frequent visits to the UK, over a number of years, for reasons such as:
- regular business meetings or conferences
- a UK citizen child or a sick family member in the UK that you need to visit regularly
According to the information given, the person with the visa has to leave the UK after 6 months. But how long do they have to wait before they can return to the UK? And do they have to reapply for a new visa?
If you are able to get a long-term visitor visa, they can be granted for lengths of 2 years, 5 years or 10 years. You can visit as many times as you like during that validity period, but you can only stay for a maximum of 6 months at a time and you should not be spending more time in the UK than in your home country... you can't be seen to be attempting to 'live' in the UK as a visitor.
The general rule of thumb is that you should spend at least as much time out of the UK as you did in the UK... so if you visited for 6 months, you should wait at least 6 months before attempting to return.
The long-term visitor visa is mainly for people who take frequent, short visits to the UK and don't want to have to get a new visitor visa each time they enter... for example, if they have to fly to the UK for business meetings once or twice a month.
And is there any guidance about what types of circumstances would qualify, for the Home Office, as meeting the criterion of requiring the applicant to visit the UK enough to require the issuance of this visa?
The official guidance is here:
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/619130/Visit-guidance-v6.pdf