I’ve been hanging out in Notting Hill since I was an art student in the Eighties. It’s changed during this time, especially physically. Some of the properties were in an “interesting” state back then; some were in a really bad way.
There also used to be a more sizeable Caribbean community. Streets like All Saints Road, aka The Frontline, had much more of a Caribbean presence. It’s still diverse and a magnet for people all over the world, but there’s new developments and new infrastructure.