Man still with foster family after 30 years
16 July 2014 Last updated at 16:15 BST
Brian was placed with his foster family when he was eight years old, and 30 years later he is still there.
His foster mother, Marian Fergusson, insisted that Brian, who has Down's syndrome, continued to be part of the family after he turned 18.
Brighton and Hove City Council has supported the family as part of their Shared Lives initiative.
BBC South East's Ian Palmer reports.