funny you should say that...
Robert Rankin's books East of Ealing, The Antipope, Raiders of the Last Carpark and a few others are set in Brentford London.. where I grew up

I could take you on a tour of each location in each book
as for anyone in a book? OHHHHH BOOOOY
Terry Prachett - Author of the Diskworld Series - Characters he has based ppl on I know
Hodgesaaaaaaaaaaaarggh! = Dave Hodges
Queen Ycni the Annoyed = Gail from the london 'Ton Meet
Corpral Nobbs = Possibly Pat Lennon from the 'Ton
and the all time classic... read his Sourcery... look for the char 'Nijel the Destroyer, Son of Harebut the Privsioner..'
thats me!