Six most expensive homes in the world

A new survey by website comparecamp.com rounds up the most premium properties:
KENSINGTON, 17 Upper Phillimore Gardens, UK

Owner: Ukranian oligarch Elena Franchuk



Beating even the Buckingham palace by about $30 million or so is this former girls' preparatory school with ten bedrooms, an underground swimming pool, sauna, cinema and a panic room.

THE ROYAL BUCKINGHAM PALACE, UK

Owner: The Royal Family of England



It's worth $1.55 billion and the Queen of England lives in it. Enough said.

ANTILIA, Mumbai

Owner: Mukesh Ambani



The Ambanis' 27-storey home is worth $1 billion. It boasts six underground parkinglevels and takes a staff of 600 to run. India's version of Downton Abbey, indeed.

VILLA LEOPOLDA, Cote D'Azure, France

Owner: Brazilian philanthropist Lily Safra



This was once the home of Belgian King Leopold's mistress. Safra now owns the $750 million waterside wonder, which was featured in Hitchcock's To Catch a Thief.

FAIRFIELD POND Sagaponack, New York

Owner: American investor Ira Rennert



Worth $248.5 million, the 29 bedroom home has its own power plant and is ready for guests with plenty of sporting amenities and a 91 foot long formal dining room.

TAJ MITTAL Kensington Palace Gardens, UK

Owner: Lakshmi Mittal



This palatial residence has 12 bedrooms, Turkish baths, an indoor pool and parking for 20, and is valued at $222 million.