This page explains how you can come and live permanently in the United Kingdom as an elderly dependent relative of someone who is already a permanent resident here.
If you are a parent, grandparent or other dependant relative of a British citizen or a person settled in the United Kingdom (known as your 'settled relative'), you can apply for permission to live permanently in the United Kingdom (known as indefinite leave to enter or remain). You must provide evidence that:
You must get permission to enter the United Kingdom as an elderly dependent relative before you travel here - see the visa services website for more information.
To apply to live permanently in the United Kingdom as an elderly dependent relative, you must complete application form SET(F).