Single Family Residence at 4 Windmill Hill Road, Dublin
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$5,999,000

Under contract
4 Windmill Hill Road
Dublin, NH 03444
Listed by Andrew Peterson · Four Seasons Sotheby's International Realty
Bedrooms
13
Bathrooms
9.5
Living area
N/A
Year built
1902

About this home

A stone pillared entry drive by a mature rhododendron and mountain laurel hedges leads to Knollwood... a singular country estate set in the heart of New Hampshire's Monadnock region. A 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 on 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. Proof of funds required...showings by appointment only please.

Property details

MLS
Prime MLS
MLS #
5097639
Property type
Single Family Residence
Subdivision
N/A
Status
Under contract
Days on market
40
On market date
N/A
Stories
N/A
Total bathrooms
9.5
Garage spaces
6
Parking spaces
N/A
Lot size
104 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.

Elementary
Dublin Consolidated School
0.88 mi away · Grades 0-4
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
47
Student:teacher ratio
9.4:1
District
Contoocook Valley School District
Middle
Jaffrey-Rindge Middle School
6.07 mi away · Grades 6-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
297
Student:teacher ratio
10.6:1
District
Jaffrey-Rindge Coop School District
High
Conant High School
6.02 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
376
Student:teacher ratio
12.5:1
District
Jaffrey-Rindge Coop School District

Walkability

Blended score for Dublin's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

23
Car-dependent
out of 100
EPA National Walkability Index
7.7 / 20 -- Below average walkable
Google Places amenity density
0 / 100
Restaurants & cafes0
Grocery stores0
Parks0
Schools0
Transit stops0
Pharmacies0

Mortgage calculator

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Est. monthly payment
$36,277/mo
$1,199,800 down
$4,799,200 loan
Principal & interest$31,128
Property tax (est.)$4,999
Home insurance (est.)$150

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Copyright 2026 PrimeMLS. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated 08/10/26.