Knollwood is a once-in-a-century opportunity to own one of America’s most storied private estates—a living chapter of American history & a destination associated with influence & culture. 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 two owners in its 124-year history. From 1910 to 1913, President William Howard Taft used it as his occasional Summer White House, hosting summits & gatherings that helped shape the nation. In the same era, Mark Twain spent weeks here reading Huckleberry Finn to guests in its grand rooms. Listed on the U.S. National Register of Historic Places & perched atop a ridge of Mount Monadnock, the estate commands sweeping 40-mile views across 100+ acres of gardens, forests, & a boutique vineyard. The 14,500+ sqft Georgian-style residence offers 13 bedrooms, 9.5 baths, a 26-seat dining room, library, terraces, & a grand ballroom seating 120. Additional structures include a heated 3-car garage with apartment above & a historic 3-stall barn. Purpose-built for grand entertaining, luxury retreats & boutique hospitality ventures (weddings, bed & breakfast lodging etc). less than 2 hours from Boston & ~20 minutes from Keene Dillant-Hopkins Airport, Knollwood offers a rare blend of privacy & accessibility in tax-free, business-friendly New Hampshire, surrounded by 4-season recreation—skiing, hiking, fishing, golfing, kayaking, horseback riding, & more.
Active
Listed by:
Sean Bakhtiari,
Compass New England, LLC 978-248-8081,
Colby Coppage,
Compass New England, LLC
Price cut: $5M (10/13)
$9,999,000
4 Windmill Hill Road, Dublin, NH 03444
13beds
14,546sqft
Est.:
Single Family Residence
Built in 1900
104 Acres Lot
$-- Zestimate®
$687/sqft
$-- HOA
What's special
Private estateGeorgian-style residence
- 121 days |
- 8,607 |
- 307 |
Zillow last checked: 8 hours ago
Listing updated: November 07, 2025 at 07:18am
Listed by:
Sean Bakhtiari,
Compass New England, LLC 978-248-8081,
Colby Coppage,
Compass New England, LLC
Source: PrimeMLS,MLS#: 5059572
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 13
- Bathrooms: 10
- Full bathrooms: 9
- 1/2 bathrooms: 1
Heating
- Oil, Forced Air
Cooling
- Wall Unit(s)
Features
- Flooring: Hardwood
- Basement: Partial,Interior Entry
Interior area
- Total structure area: 14,546
- Total interior livable area: 14,546 sqft
- Finished area above ground: 14,546
- Finished area below ground: 0
Property
Parking
- Total spaces: 21
- Parking features: Gravel, Heated Garage, Deeded, Driveway, Parking Spaces 21+, Detached
- Garage spaces: 6
- Has uncovered spaces: Yes
Features
- Levels: 3
- Stories: 3
- Has view: Yes
- View description: Mountain(s)
Lot
- Size: 104 Acres
- Features: Country Setting, Landscaped, Views, Mountain, Rural
Details
- Parcel number: DUBLM00003B000001L000000
- Zoning description: Rural
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Georgian
- Property subtype: Single Family Residence
Materials
- Shingle Siding, Wood Siding
- Foundation: Concrete, Fieldstone
- Roof: Asphalt Shingle
Condition
- New construction: No
- Year built: 1900
Utilities & green energy
- Electric: 200+ Amp Service
- Sewer: Private Sewer
- Utilities for property: Cable, Propane
Community & HOA
Location
- Region: Dublin
Financial & listing details
- Price per square foot: $687/sqft
- Tax assessed value: $3,376,027
- Annual tax amount: $64,110
- Date on market: 9/3/2025
Estimated market value
Not available
Estimated sales range
Not available
$1,798/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 10/13/2025 | Price change | $9,999,000-33.3%$687/sqft |
Source: | ||
| 9/9/2025 | Listed for sale | $15,000,000$1,031/sqft |
Source: | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | $60,735 +16.2% | $3,376,027 +78.7% |
| 2023 | $52,270 +10.8% | $1,889,064 0% |
| 2022 | $47,183 +6.6% | $1,889,570 0% |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$57,938/mo
Principal & interest
$38773
Property taxes
$15665
Home insurance
$3500
Climate risks
Neighborhood: 03444
Nearby schools
GreatSchools rating
- 2/10Dublin Consolidated SchoolGrades: K-5Distance: 0.9 mi
- 6/10South Meadow SchoolGrades: 5-8Distance: 6.2 mi
- 8/10Conval Regional High SchoolGrades: 9-12Distance: 6.1 mi
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