The 20 most expensive billionaire homes in 2015 & their owners (+Photos)

3) Fair Field, Sagaponack, N.Y. – $248 million

Owner: Ira Rennert – Net Worth: $6 Billion

This house is owned by billionaire industrialist Ira Rennert. The property value is around $248.5 million according to 2014 tax assessment. This hulking 29-bedroom, 39-bath Hamptons compound has three swimming pools. It is run by its own power plant.