One of the original buyers at Zeckendorf Development’s 520 Park Avenue is looking to sell.
Former Barclays CEO Robert Diamond listed his 59th-floor penthouse at the luxury building for $40 million, according to StreetEasy. Diamond and his wife, Jennifer, bought the home for $30 million in 2019.
The full-floor, 4,300-square-foot home has been “meticulously renovated and conceptualized,” according to the listing.
A private key-locked elevator leads into an entry gallery, which opens up to the first of three large living spaces — a formal dining room, formal living room and sitting room — that wrap around the northeast corner of the home. A windowed eat-in kitchen sits on the northwest corner.
The primary suite on the southeast side of the building has two walk-in closets and two primary bathrooms. The home comes with another full bathroom and a guest bedroom, and can be converted into a three-bedroom, according to the listing.
Compass’ Jim St. Andre has the listing. He declined to comment.
Only one other penthouse in the building has been sold by its original owner. The 48th-floor unit sold for $32 million in 2019, before trading for $28 million in 2022, according to public records.
The Robert A.M. Stern-designed building boasts over 15,000 square feet of amenities, including a double-height indoor swimming pool, a bi-level fitness center, a private screening room and a salon.
Developed by Arthur and William Lie Zeckendorf, the building launched sales in 2015. Initially slated as a spiritual successor to the family’s acclaimed luxury condo at 15 Central Park West, it didn’t quite reach the stratum of the property dubbed the “Tower of Power,” the building notched a number of high-profile buyers for its expensive top floors.
In 2018, the 52nd-floor unit sold to billionaire investment banker Ken Moelis for $62 million, and in 2019, vacuum cleaner mogul and British billionaire James Dyson bought a 60th-floor duplex penthouse for $73.8 million.
The building’s final sponsor sale came in 2024, when its crown jewel duplex sold to Orlando Bravo, co-founder of private equity firm Thoma Bravo, for $79 million.
That deal, however, quickly turned sour. Last spring, Bravo sued the Zeckendorfs, claiming the developers pushed him into a bad deal. He accused them of failing to disclose plans by Extell Development’s Gary Barnett to construct a skyscraper at 655 Madison Avenue that would block the western views of the building.
The Zeckendorfs called Bravo’s claims “completely without merit” in a motion to dismiss. They also pointed out that a photo Bravo included in his complaint showing the building’s potentially obstructed views of Central Park was from a north-facing window — a part of the building not at risk from Barnett’s building.
It’s not clear if the lawsuit or Barnett’s project is having an impact on the building’s prices. Just two units have traded since the lawsuit was filed and both have sold for less than the seller paid originally.
Luckily for Diamond, only one of his condo’s 14 windows faces west.
