List Price: $7,500,000 | $516 per sq.ft. | 13 Bedroom | 10 Bathroom | 3 Story Single Family Home
Price Change! Reduced by $7,500,000 down 100% on March 24th 2026

Listed Wednesday Sep 3, 2025 | MLS# 5059572
4 Windmill Hill Road Dublin NH
Listed by Sean Bakhtiari Compass New England, LLC
One of New England's most storied estates--now offered under $8M--Knollwood represents a rare and compelling opportunity to acquire a legacy property at a fraction of its replacement cost and on 100+ acres. Built in 1900 by Franklin MacVeagh, U.S. Secretary of the Treasury, and later owned by Ernest Henderson, founder of Sheraton Hotels, the estate has had only two owners in 124 years. From 1910-1913, President William Howard Taft used Knollwood as his occasional Summer White House, while Mark Twain spent weeks here reading Huckleberry Finn to guests... Set atop a ridge of Mount Monadnock with sweeping 40-mile views, the property spans 100+ acres of gardens, forests, and vineyard--an increasingly rare offering in the Northeast. The 14,500+ sq ft Georgian residence includes 13 bedrooms, 9.5 baths, a 26-seat dining room, library, terraces, and a 120-person ballroom. Additional structures include a heated 3-car garage with apartment above and a historic barn... In addition to its appeal as a one-of-a-kind grand residential estate, Knollwood's scale, layout, and global narrative position it for luxury retreats, weddings, or boutique hospitality ventures (subject to approvals)--offering a significantly lower basis than comparable New England opportunities. Located less than 2 hours from Boston and ~20 minutes from a private jet airport, this is a rare opportunity to acquire, reposition, and create a destination asset of lasting significance.
Flooring: Hardwood
Total Rooms: 25
Total Baths: 10
Full Baths: 9
1/2 Baths: 1
Total Bedrooms: 13
Basement: Partial
Year Built: 1900
Type: Shingle Siding | Wood Siding

Building Info
Finished Sq.Ft.: 14546
Above Grade Sq.Ft.: 14546
Below Grade Sq.Ft.: 0
Apx Below Grade Unfinished Sq.Ft.: 0

Exterior Info
Style: Georgian
Roof: Asphalt Shingle

Utilities
Electric: 200+ Amp Service
Water: Private
Sewer: Private

Land Description:
Country Setting | Landscaped | Mountain View | View | Mountain | Rural
Lot size: 104 acres
Zoned: Rural
Surveyed: Unk
Flood Zone: No
Seasonal: No
Driveway: Gravel



Block - 1
Taxes $64,110
Assesed Value Not Reported
Schools

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