2Kensington Palace Gardens – London, UK

Value: $230 million

Kensington Palace Gardens, often referred to as “Billionaires Row,” is one of the most exclusive and expensive residential areas in London.
This property, owned by Indian steel magnate Lakshmi Mittal, is one of the most coveted homes on the street. The mansion has 12 bedrooms, a Turkish bath, a private art gallery, and an indoor pool. Its proximity to Kensington Palace and Hyde Park, combined with its palatial design, make it a standout among London’s luxury real estate.