Updown Court

Updown Court is a 58 acre (23 hectare) estate in Surrey, England. It was once the world's priciest house, at £70,000,000\$150,000,000. The estate comprises of 12 buildings.
Building one is the main mansion itself with 50,000sqft/4800sqm of living space on four floors. The house includes 14 bedrooms, 14 full bathrooms, a dozen powder rooms, four swimming pools, a two lane bowling alley, marble and mosaic tile floors and walls, etc.