Stone Chateau in Northern N.J. Sells for US$17.7 Million, the State’s Biggest Home Sale in Three Years
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Stone Chateau in Northern N.J. Sells for US$17.7 Million, the State’s Biggest Home Sale in Three Years

The custom megamansion is located in the affluent town of Alpine, not far from New York City.

By NANCY A. RUHLING
Wed, Sep 10, 2025 12:35pmGrey Clock 2 min

A Versailles-style chateau in Alpine, New Jersey, has just been sold for US$17.7 million, the state’s highest home sale in the past three years.

The sale of the custom megamansion, which closed Tuesday, is also the highest-priced in the affluent town and in the Rio Vista neighbourhood since January 2022.

David and Mindy Kwon bought the vacant Bergen County land in 2011 for $3.95 million, according to records on Property Shark. They declined to comment on the sale.

The Kwons spent four years building their dream house, which they christened Chateau de la Roche for the boulder that had to be blasted out of the ground before the project could commence.

Designed by Zampolin & Associates Architects, the cast stone, limestone and travertine residence presides over 2 acres.

The interiors are by Denise Albanese, who, in her dual role as realtor associate at the Christie’s Mahwah-Saddle River Sales Gallery, also represented the Kwons in the sale.

“Among the luxury homes in Rio Vista, Chateau de la Roche is the cream of the crop,” she said. “It’s one of the most elegant—there’s a general feeling of grandeur and luxury.”

The seven-bedroom, 10.5-bath house, which was completed in 2017, is palatial enough to suit royalty.

The 25,700-square-foot house, which is about a half hour from Manhattan, has a 15-seat theatre, an elevator, a gas fireplace, a billiards room, two bars, a wine cellar, two indoor plunge pools, a sauna, a steam room, a conservatory and a central-vacuuming system.

Other features include a grand central staircase illuminated by a massive crystal chandelier, a great room warmed by a mammoth fireplace, a conservatory, a mezzanine and an ornately wood-panelled library with a fireplace. The garage can accommodate four vehicles.

On the left, palatial windows define the conservatory. While in the wood-panelled library, on the right, a fireplace adds atmosphere and warmth. David Heald Photography

Outside, there’s a resort-style swimming pool and a spa.

It’s the details, Albanese said, that set the chateau apart.

“It has soaring ceilings, custom fireplaces and bridal staircases,” she said. “In one of the powder rooms, there is glass-beaded wallpaper.”

Mansion Global could not immediately confirm the identity of the buyer, who was represented by Richard Orlando and Jason Pierce of Prominent Properties Sotheby’s International Realty and Taylor Lucyk of Christie’s International Real Estate Group

Albanese said that the Kwons, who own several other homes, are downsizing.

The transaction, she said, was a “full-circle moment for me as an interior designer and real estate agent. It’s a little sad to see the chateau go, but I’m already working with the sellers on their next interior design and real estate venture.”

Kwon is the corporate vice president and chief legal officer of ADP (Automatic Data Processing), a Roseland, New Jersey., company that provides human resources management software services. And he’s a trustee on the board of SEEDS, a New Jersey-based nonprofit that helps high-achieving students from low-income families.

Chateau de la Roche was originally put up for sale in 2021 for $25 million. Since 2023, the asking price has been $22.49 million.



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A 92nd-Floor Penthouse With 360-Degree City Views Is Brooklyn’s Highest Residence

The new Brooklyn Tower, a mix of luxury condos and rentals, rises from the historic Dime Savings Bank building.

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Location: Downtown Brooklyn, New York

Price: $16.75 million

Boasting 360-degree panoramic views across New York City, this new 92nd-floor penthouse is the highest residence in Brooklyn.

The full-floor apartment stands atop the new Brooklyn Tower, which encompasses 143 condos and 398 rentals in the heart of downtown Brooklyn, said Katie Sachsenmaier, senior sales director, Corcoran Sunshine Marketing Group.

The condos begin on the 53rd floor, and the penthouses begin on the 88th floor. This one, Penthouse 92, is the only full-floor penthouse.

“The building is coming into its own now,” she said. “It feels very busy when you step into the lobby.”

Developed by Silverstein Properties, the building at 85 Fleet Street rises from the historic Dime Savings Bank building, according to a news release.

It was designed by SHoP Architects with interiors curated by Gachot Studios, and it is the borough’s only super tall skyscraper.

Penthouse 92 features custom interiors by Brooklyn-based Susan Clark of design firm Radnor, Sachsenmaier said. “Her selections have made it really beautiful. It feels very warm and inviting.”

Architectural details include 12-foot ceilings, European white oak floors in a custom honey stain, mahogany millwork, bronze detailing and floor-to-ceiling windows.

The eat-in kitchen features Absolute Black stone countertops, an island with seating, oil-rubbed bronze Waterworks fixtures and integrated Miele appliances, according to the listing.

The primary en suite bathroom showcases large-format Honed Breccia Capraia marble. There is also a separate laundry room as well as a wet bar and a butler’s pantry.

The views are spectacular, Sachsenmaier said. “If you’re standing in the living room, you take in the Statue of Liberty and all the way up through Midtown. On a clear day, you can see the planes take off at LaGuardia (Airport).”

Penthouse 92 features custom interiors by Brooklyn-based Susan Clark of Radnor.
Photo: Sean Hemmerle

Moving around the apartment, you see south over the harbor and then north and east over the whole city, she said.

From the front door, “you’re immediately greeted with the expansive living room and the view,” she said. “It’s really the first thing you see.”

The primary suite features a dressing room, multiple walk-in closets, two bathrooms (one with a cedar sauna) and southwest-facing windows, Sachsenmaier said. “You get those really beautiful harbour views.

The amenities will be ready by the end of summer, she said. A Life Time club will occupy the entire sixth and seventh floors, and an outdoor pool deck wraps around the dome of the bank building.

Stats

The 5,891-square-foot home has four bedrooms, five full bathrooms and one partial bathroom.

Amenities 



Residents will have access to over 100,000 square feet of exclusive indoor and outdoor leisure spaces.

Fitness company Life Time will manage an array of amenities that include a 75-foot indoor lap pool, outdoor pools, a poolside lounge and atrium, a billiards room, a library lounge, a conference room, a theatre with a wet bar, a children’s playground and playroom and limited off-site parking.

The Sky Park offers an open-air loggia with a basketball court, foosball, a playground and a dog run.

An outdoor pool deck wraps around the dome of the Dime Savings Bank building.
Photo: Gabriel Saunders

Neighbourhood Notes 



Downtown Brooklyn is at the centre of a number of neighbourhoods, including Fort Greene, Cobble Hill, Boerum Hill and Brooklyn Heights. The tower has access to 13 subway lines, 11 commuter trains, the city’s ferry network and 22 Citi Bike stations.

“You can walk to Fort Greene Park in less than 10 minutes,” and Dekalb Market Hall, which has a Trader Joe’s, a Target and a food hall, is “right next door,” Sachsenmaier said.

Agent: Katie Sachsenmaier, senior sales director, Corcoran Sunshine Marketing Group

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