You can apply for this settlement if you have been continuously and lawfully resident in the UK for 10 years. If successful, you can stay in the UK without any time limitations.
You would need to fulfil the following criteria:
- You have permission to remain in the UK under 1 or more immigration categories
- You have been residing in the UK for at least 10 years
- You have followed all terms of your visa
- You have passed the Life in the UK Test and you meet the English language requirements
The 10-tear residence must be continuous, i.e. without any gaps. However, you can leave the UK for up to 180 days at one time (or 540 days in total) for example for travelling purposes.
You would need to submit such documents with your application as ID, BPR and every passport you have ever used during your stay in the UK.