4 Windmill Hill Road | Dublin, NH

13 BD | 9.5 BA | 14,546 SF | 104 ACRES | $15,000,000

Knollwood is a once-in-a-century opportunity to own one of America’s most storied private estates—a living chapter of U.S. history. Built in 1900 by Franklin MacVeagh, U.S. Secretary of the Treasury, and later acquired by Ernest Henderson, founder of Sheraton Hotels, Knollwood has had only two owners in its 124-year history. From 1910 to 1913, President William Howard Taft occasionally used it as his Summer White House, hosting political summits, dignitaries and gatherings that shaped the nation. In the same era, Mark Twain spent weeks here, reading Huckleberry Finn to guests in its grand rooms. Over the decades, nearly every major political figure has walked its halls, cementing its status as a destination for power, influence, & culture. Perched atop a ridge of Mount Monadnock, the estate commands sweeping 40-mile views over 100 acres of gardens, forests, and a boutique vineyard. The Georgian-style, museum-like residence offers 14,500+ square feet with 13 beds, 9.5 baths, a 26-seat dining room, library, terraces, and a grand ballroom seating 120 people. Additional structures include a three-car garage with apartment above and a historic three-stall barn. Purpose-built for grand entertaining and large-scale gatherings, Knollwood is ideally suited for luxury retreats, weddings, philanthropic galas, and boutique hospitality. Listed on the U.S. National Register of Historic Places, Knollwood is more than a residence—it is a cultural landmark, a legacy property, and an irreplaceable piece of American heritage.