A west London-based businessman has topped The Sunday Times' Rich List with an estimated fortune of £13.17 billion.
Ukrainian born Len Blavatnik, who owns a £200million 13-bedroom, grade II listed house in Kensington Palace Gardens, jumped up four places from last year after seeing his wealth rise by more than £3 billion.
The Warner Music Group owner beat a total of 117 billionaires on the list, up from a total of 104 last year.
Mr Blavatnik took over top spot from brothers Sri and Gopi Hinduja, who were nudged into second despite their fortune rising by £1.1 billion to £13 billion.
The collective wealth of Britain's richest people has more than doubled in the last ten years, according to the Sunday Times Rich List.
This year's list found the wealthiest 1,000 individuals and families now have a staggering combined fortune of £547.126 billion.
Despite the global recession, the figure has more than doubled since £249.615 billion was recorded in 2005.
Not every billionaire has seen their bank balances bulge.
Chelsea Football Club chairman Roman Abramovich Steel magnate Lakshmi Mittal and saw their fortunes fall by £1.05 billion and £1.23 billion respectively, the list claimed.
It charts wealth including land, property, assets or significant shares but excludes bank accounts.
The Sunday Times Rich List:
1 Len Blavatnik £13.17 billion
2 Sri and Gopi Hinduja £13 billion
3 Galen and George Weston and family £11 billion
4 Alisher Usmanov £9.8 billion
5 David and Simon Reuben £9.7 billion
6 Ernesto and Kirsty Bertarelli £9.45 billion
7 Lakshmi Mittal and family £9.2 billion
8 Kirsten and Jorn Rausing £8.7 billion
9 The Duke of Westminster £8.56 billion
10 Roman Abramovich £7.29 billion
11 John Fredriksen and family £7.24 billion
12 Charlene de Carvalho-Heineken and Michel de Carvalho £7.145 billion
13 Sir David and Sir Frederick Barclay £6.5 billion
14 Hans Rausing and family £6.4 billion
15 Mohamed Bin Issa Al Jaber and family £5.935 billion
16 Carrie and Francois Perrodo and family £5.8 billion
17 Nathan Kirsh £5.06 billion
18 Earl Cadogan and family £4.8 billion
19 Nicky Oppenheimer and family £4.55 billion
20 Sir Richard Branson and family £4.1 billion