Who could make an application?
Partners of British citizens or those with settled or refugee status could apply. Likewise, parents of British citizen children or of children who have lived in the UK for at least 7-years could apply. They will need to meet the requirements of Appendix FM. We have more detailed advice here.
Those who have lived in the UK for 20 years can make a Private Life application for limited leave to remain on a 10-year route to settlement. You will not be able to apply for settlement at this time, you can only apply to settle after holding valid leave for a continuous period of 10 years. Your 20 years of residence simply enables an application for limited leave to remain based on your private life.
Those under the age of 25 who have lived in the UK for most of their life could apply on the basis of their ‘half-life’ in the UK. This is also a Private Life application and should have good prospects of success if well evidenced. These people will likely be issued leave to remain on the 5-year route to settlement.
If a person faces very significant obstacles to their integration into their home country, due to ethnic, financial, linguistic or any other reasons, then they too can apply for limited leave to remain. This is the ‘catch-all’ application and often a last resort for those looking to remain in the UK. Despite this, it is an application under the immigration rules and a well prepared application can have good prospects of success. These applications are always fact specific. A French national is likely to find it harder to evidence very significant obstacles than a Lebanese national and both will have a harder time than an Eritrean or Chadian.