The newly constructed, 21,000 square feet “spec” house sits on one of the lots and was designed by architect William M. Boyle of Boyle Architecture and features a pool and guesthouse. It went under contract less than 24 hours after the mystery buyer toured the home, a source tells us.

The buyer was represented by celebrity broker Ryan Serhant. Serhant, who just published the book “Big Money Energy,” also recently sold the most expensive condo, a $33 million penthouse at Miami’s Arte Surfeside (where Ivanka Trump and Jared Kushner are currently renting).