Real Estate

This Could Be America’s Most Expensive Home Ever—If It Can Find a Buyer

Seven years in the making, $500 million California mansion will test ultra-luxury appetite 

America's priciest home is finally getting its finishing touches.

Seven years after he started working on “The One,” a 100,000-square-foot mansion in Bel-Air, movie producer turned developer Nile Niami says he's just about ready to test the market with his ballyhooed $500 million asking price.