Yeah I don’t think they’re “rich/wealthy” but what you’ve described here is what I was thinking. Property owned by family or they pay rent. Then they are willing to assist him as he awaits his big break. Like Tabitha I’ve known a lot of people in London who were funded by parents - rent, car, wedding, deposit for a house, a few grand when they want something, free family holiday, bring their partner and never open their wallets. Granny dies and leaves them 50k and the parents inherit a 6 figure sun. Most of these parents were just solidly middle class with a paid off house.
Samisgod’s parents are supposedly rich rich though. They have a huge place in Kensington I think - they had all the scoop on the bloggers thread and it was a multi million place with more property overseas.