There are few properties across the U.S. that carry the same kind of legacy as Sagamore Farm, a storied equestrian estate that is interwoven with some of the most impressive dynasties in the world—including the Vanderbilts and the British royal family.
Remarkably, the estate’s impressive heritage, which includes its most recent owner, Under Armour CEO Kevin Plank, has not helped it to find a buyer. Originally listed in early 2025 for $22 million, the Maryland property has struggled to secure any concrete offers—and has now returned to the market for the much lower price of $16.5 million.
Though still a lofty sum, for those fortunate enough to be able to afford a property with such prestige, the most recent ask could well be seen as a bargain.
Set on approximately 440 acres of rolling countryside in Glyndon’s Worthington Valley, the historic property blends world-class equestrian infrastructure with a grand home rooted in a century of history.
Founded in 1925 by pharmaceutical magnate Isaac Emerson and later entrusted to Alfred G. Vanderbilt Jr., Sagamore Farm rose to international fame as one of the premier breeding and training facilities in American horse racing.
Over the decades, the farm produced legendary racehorses, including Native Dancer, known as the “Galloping Grey Ghost.”
“The farm attracted global attention during its height, including ties to British royalty, with the queen of England keeping a broodmare on the property,” says listing agent Christina Giffin of Sotheby’s International Realty.
Giffin did not name the royal in question—nor are there any publicly available records to verify this anecdote—however, history suggests that the late Queen Elizabeth II, an avid equestrian, could well have explored housing one of her horses at the estate.
Today, the property represents a rare opportunity to own a fully realized equestrian compound with an extraordinary legacy. At the heart of 3366 Belmont Ave. sits a stately main residence spanning more than 16,000 square feet and featuring seven oversized en-suite bedrooms, nine full bathrooms, and one half bath.
Expansive living spaces include a formal dining room and a library that opens onto the terrace, while four fireplaces are found throughout the home.
Beyond the residence, Sagamore Farm’s infrastructure reflects its heritage as a premier thoroughbred facility. The estate includes multiple barns and spaces for training operations, along with extensive turnout paddocks.
A standout feature is the 0.75-mile Tapeta training track, designed to “provide superior footing for professional-level training.” The Clocker’s Tower adds both functionality and spectacle, offering viewing areas and dining space— all with sweeping views of the property’s pastures.
The estate has also undergone several upgrades over the years to ensure it is ready for its next generation of stewards.
“When Kevin Plank, founder and CEO of Under Armour, acquired Sagamore Farm in 2007, the vision was long-term: to preserve its legacy while elevating it to modern standards,” says Giffin.
The residence and equestrian facilities alike saw notable upgrades, including the installation of the Tapeta synthetic track and the construction of the Clocker’s Tower. Modern fixtures and appliances also appear throughout the main home and supporting buildings.
“One of the most unique features on the property is the historic spring house built in 1909,” explains Giffin.
Fed by naturally limestone-filtered water that remains a constant 53°F year-round, the spring once provided farmers a place to chill milk and preserve dairy long before modern refrigeration.
“Today, the same pure water continues to bubble up through the foundation and is carefully collected by Sagamore Spirit for use in crafting its Maryland-style rye whiskey,” she adds.
As if the charm of the property itself weren’t enough, the location adds further appeal. Set within Baltimore County’s Worthington Valley, widely considered the heart of Maryland horse country, the property offers easy access to major highways and is just 30 minutes from Baltimore/Washington International Thurgood Marshall Airport.
Co-listing agent Diane Donohue, who’s lived in the surrounding area for more than 25 years, describes the landscape as one defined by timeless beauty and continuity.
“Locals and visitors will continue to drive past Sagamore Farm and its miles of white board fencing, stopping to gaze at stallions grazing or early fog hanging in the valley,” says Donohue. “It’s amazing to think that 10 minutes away is the Hunt Valley Town Center with all the modern-day comforts of shopping and restaurants.”
Ultimately, Sagamore Farm stands apart not simply for its scale, but for the legacy it represents.
“Sagamore Farm stands among the most spectacular estates in Maryland, both for its physical beauty and for the story it continues to tell,” says Giffin.