The 11.2-acre East Hampton, New York, estate of education entrepreneur Chris Whittle will list for $140 million.

Real-estate agents believe it will likely be the priciest listing in the pricey Hamptons.

Called Briar Patch, the property includes 1,156 feet of water frontage on Georgica Pond and is part of a historic district recognized by the National Register of Historic Places.

It includes a roughly 10,000-square-foot, six-bedroom, Georgian-Revival shingle-style house built in 1931.

Mr. Whittle and his wife Priscilla Rattazzi bought the property in 1989, he said in an email. Soon after, they embarked on a 2½ year renovation with architect Peter Marino, which included creating a three-story-tall great room in the main house and building a detached four-bedroom guesthouse.

Mr. Whittle, 67, is the founder and chairman of Avenues: The World School, a private school system with a location in New York’s Chelsea neighborhood.

Peter Turino, president of Brown Harris Stevens, has the listing.

Via WSJ - STEFANOS CHEN