UK property tycoons, David and Simon Reuben, increased their already huge empire further in their recent purchase of 105 Piccadilly.

The Telegraph reported, "The billionaire brothers, who own Motcomb Estates, paid £50 million to buy a 125-year lease for the office block. This is the latest in a spending spree across the West End: most recently the brothers purchased a car park in Mayfair for £70 million. They also bought Cambridge House at 94 Piccadilly in 2011, a Grade I listed mansion that they planned to restore to its former glory."

Originally from India, the Reubens have very humble beginnings. They went to the UK in the 1950s when they were just teenagers. Starting with what little money they have, Simon worked for a carpets company while David worked in scrap metal business while juggling school. In a story by Unitee Blog, Jaime Reuben, David's son said, "They had absolutely nothing. I have heard the stories from my mother -- she was the one paying for the dinners when she met my dad".

After just a few years, Simon Reuben was able to buy the oldest carpet company in England, while David also was making it big in the trade and metal business.

Later on, these self-made tycoons would climb their way to be the 80th in the world's top 100 billionaires. They did it by exploring further the metal industry and investing their money on UK properties. In the 1990s, they increased their assets when they invested in the privatized aluminum industry through their company Trans-World.

The brothers are not only hugely successful entrepreneurs; they are also famous for their philanthropic works. They have helped redevelop many sites in London. They provided funding for affordable housing. They also extended help to UK's health and education sector by putting up education facilities, clinics, hospitals, and giving free education through Reuben Foundation.