Most expensive house in the US goes on the market at $350 million

It's been five years in the planning, but now the most expensive spec house ever to be built in the United States is finished and on the market – for US$250 million (NZ$350m).

from
http://www.stuff.co.nz/life-style/home-property/88575346/Most-expensive-house-in-the-US-goes-on-the-market-at-350-million