4 Windmill Hill Road, Dublin, NH 03444

Listing by: Sean Bakhtiari, Compass New England, LLC, 978-248-8081

13 Beds

10 Baths

14,546SqFt

Active

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, & later acquired by Ernest Henderson, founder of Sheraton Hotels, Knollwood has had only 2 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 & 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. Listed on the U.S. National Register of Historic Places & perched atop a ridge of Mount Monadnock, the estate commands sweeping 40-mile views over 100 acres of gardens, forests, & a boutique vineyard. The Georgian-style, residence offers 14,500+ sqft with 13 beds, 9.5 baths, a 26-seat dining room, library, terraces, & a grand ballroom seating 120. Additional structures include a 3-car garage with apartment above & a historic 3-stall barn. Purpose-built for grand entertaining & large-scale gatherings, Knollwood is ideally suited for luxury retreats, weddings & boutique hospitality. Nearby amenities include tennis, golf, swimming, hiking, horseback riding & snowshoeing, with the Keene Dillant-Hopkins Airport—accommodating private jets—13 miles away.

Property Details
Price $15,000,000
Bedrooms 13
Full Baths 9
Half Baths 1
Total Baths 10
Property Style Georgian
Lot Size Area 4530240
Acres 104
Property Type Residential
Sub type SingleFamilyResidence
MLS® Sub type Single Family
Stories 3
Year Built 1900
Roof Asphalt Shingle
Heating Oil,Forced Air
Foundation Concrete,Fieldstone
Lot Description Country Setting,Landscaped,Mountain View,View,Mountain,Rural
Parking Description Heated Garage,Deeded,Driveway,Parking Spaces 21+,Detached
Parking Spaces 6
Garage spaces 6
Additional Rooms 25
Geographic Data
Directions Rout 101 to Church Road to Upper Jaffrey Road to Windmill Hill Road
County NH-Cheshire
Latitude 42.894049034978
Longitude -72.059319457672
Market Area NH-Cheshire
Address Information
Address 4 Windmill Hill Road, Dublin, NH 03444
Postal Code 03444
City Dublin
State NH
Country United States
Listing Information
Listing Office Compass New England, LLC
Listing Office Phone 978-248-8081
Listing Office Email jaclyn.ball@compass.com
Listing Agent Sean Bakhtiari
Listing Agent Phone 978-248-8081
MLS® Information
Days on market 12
MLS® Status Active
Listing Date Sep 3, 2025
Listing Last Modified Sep 15, 2025
Tax Year 2024
Tax Annual Amount 64110
MLS® Area NH-Cheshire
MLS® # 5059572

Map View


This information is believed to be accurate, but without any warranty.