The U.S.’ priciest house for sale is a Bel-Air mansion that includes 7 staffers and a helicopter

Los Angeles has just reached new heights in over-the-top real estate opulence.

The city now boasts the most expensive home for sale in the country: a newly built Bel-Air mega-mansion listed Wednesday at a quarter billion dollars.

It has all the hallmarks of a Big Deal house: 38,000 square feet…