185-Acre Estate in NY's Hudson Valley - Once Owned by Carnegies - Heads to Luxury Auction® July 9

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Jul 07, 2026, 08:00 ET

MILLBROOK, N.Y., July 7, 2026 /PRNewswire/ -- On July 9, 2026, qualified bidders will have the opportunity to purchase Hallmark Farm, a storied, equestrian estate sited on 185 acres in New York's Hudson Valley, at a live, luxury auction® sale to be held on the property site. Previously listed for as much as $20 million, the property will now be sold to the auction's highest bidder at or above a reserve price of $7.95 million. Veteran real estate auction house Platinum Luxury Auctions, which is also a New York real estate brokerage, is exclusively managing the sale on behalf of the property owner.

Hallmark Farm, a storied, equestrian estate in New York’s Hudson Valley that was once owned by the Carnegie family, will be sold at luxury auction® on July 9, 2026. Once seeking as much as $20 million, the property occupies 185 acres in the affluent village of Millbrook, which remains a bastion of countryside living for numerous titans of industry and celebrities. Platinum Luxury Auctions is exclusively managing the sale. HudsonValleyLuxuryAuction.com.

In addition to manicured grounds that include multiple paddocks, a private pond, gently rolling hills and sweeping views of the Catskill Mountains, the property includes a main residence (at right), 10-stall barn with upper-level apartments (center), carriage house (upper right) guesthouse (not pictured) and additional out-buildings for added storage. HudsonValleyLuxuryAuction.com.

The center-aisle barn, designed by French firm Atelier Choiseul, features ten large stalls and is sited to capture a near-constant breeze, mitigating the need for excess sprays/repellants. There are also two tack rooms, a wash stall, feed room, hay loft, one half-bath and a handsome lounge with built-in wet bar. The barn’s upper level offers 2 staff apartments, while a large garage/workshop is located adjacent to the stalls. HudsonValleyLuxuryAuction.com.

This image, taken by the property owner, shows a pack of riders ready to begin a traditional fox hunt as the sun rises over Hallmark Farm. The property owner is a veteran equestrian who has hosted many classic fox hunts on the property, which still includes a dedicated hunter trial course with built-in obstacles, in addition to a series of clay-shooting stations. HudsonValleyLuxuryAuction.com.

The property’s main residence was originally built in 1865 but has been expanded and thoughtfully upgraded with modern finishes and amenities in recent decades. It offers three living levels, with notable features including a grand salon, library/study, elevator, fitness room, chef’s kitchen (pictured) and formal dining room able to host up to 30 dinner guests. HudsonValleyLuxuryAuction.com.

The estate is located in the affluent village of Millbrook in Dutchess County, New York, within a 90-min drive of central Manhattan. The farm's manicured grounds, gently rolling hills and panoramic views of the Catskill Mountains create a compelling argument for any buyer who enjoys the bucolic countryside of the Hudson Valley, according to Trayor Lesnock, Platinum's founder and president. "I'm sure I added at least an hour to my scheduled property visit with the seller, because I kept asking to stop the ATV at various points along the tour, so I could jump out and walk the grounds while taking in the views and imagining both the property's incredible history and its promising future."

The property's past is indeed rich and colorful. "I noticed a familiar face in a candid photograph on a wall somewhere in the stables, but I couldn't immediately place it," Lesnock noted. "The seller looked and said, 'Oh yes, that's Luciano Pavarotti and I. He loved the natural acoustics here!'"

Years ago, before the commencement of the grand fox hunts that were hosted at Hallmark (the grounds are still outfitted with a classic, fox hunter trial course with obstacles like coops, hedges and jumping walls), a full orchestra would arrange on the lawns and perform a symphony, which was occasionally augmented with the blasting of canons and fireworks. And yes, Luciano Pavarotti, the global opera sensation, once sang there as part of the festivities.

Perhaps more impressively, the property – then part of a much larger tract – was once owned by the Carnegie family, primarily for use as an elk preserve for Margaret Carnegie, the only child of industrial titan Andrew Carnegie. "You can still see traces of the two, long stretches on the grounds they used for landing their private airplanes," Lesnock said.

In addition to its fox hunting course, the farm's grounds include eight large paddocks, four field shelters, a private pond with adjacent gazebo and multiple stations for clay pigeon shooting. Property structures include a main residence with three living levels, a 10-stall barn with upper-level apartments and adjacent garage/workshop, a carriage house, guesthouse and additional out-buildings for added storage.

Hallmark Farm is partially bordered by protected lands owned by the Dutchess Land Conservancy, protecting future generations from any encroaching development. The Conservancy is one of the nation's most prominent land conservation organizations.

Millbrook, NY is known for its blend of beautiful, open spaces and exceptional privacy, arguably important factors for the numerous business moguls, financial executives and celebrities who reside there full- or part-time. It has long been regarded as a premier equestrian destination, and is home to the Millbrook Hunt, an elite, fox hunting club, the Mashomack Polo Club, Tamarack Preserve (a private, members-only club) and Orvis's Sandanona, one of the oldest hunting and sport-shooting clubs in the country.

Previews of Hallmark Farm will continue through the evening of July 8^th. Tours may be scheduled through Platinum's project manager, Walter Cerini, by calling 888.576.6839. Luxury auction® documents, photos and videography of the property are also available online at HudsonValleyLuxuryAuction.com.

About Platinum Luxury Auctions: Platinum Luxury Auctions created the luxury auction® model for multimillion-dollar real estate auctions and owns the federal trademark rights to the term "luxury auction." The Miami-based auction house specializes in the non-distressed sale of luxury properties throughout the U.S. and select international markets and has offered properties in 34 states and 15 countries to date. Platinum's team has closed more than $1.81 billion in luxury auction® sales and has advised HNW and UHNW individuals on more than $4.9 billion in luxury property assets. PlatinumLuxuryAuctions.com.

SOURCE Platinum Luxury Auctions LLC