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4 Windmill Hill Road, Dublin, NH, 03444

13beds
10baths
14,546sqft
$5,999,000
$412price/sqft
$43,894/moest. monthly cost
$1,755,760/yrincome needed

About This Home

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.

Getting Around

1
WalkingCar-Dependent
0
TransitVery Limited Transit
1
BikeSomewhat Bikeable

Schools

2/10
6/10
South Meadow SchoolGrades 5-86.2 mi
8/10

Construction

Condition

  • Year built: 1900

Materials

  • Foundation: Concrete,Fieldstone
  • Roof: Asphalt Shingle
  • Construction materials: Shingle Siding,Wood Siding

Type & Style

  • Home type: SingleFamily
  • Architectural style: Georgian
  • Property subType: Single Family Residence

Interior

Basement

  • Has basement: Yes
  • Basement: Partial,Interior Entry

Bedrooms & Bathrooms

  • Bedrooms: 13
  • Bathrooms: 10
  • Full bathrooms: 9
  • 1/2 bathrooms: 1

Features

  • Flooring: Hardwood
  • Finished area below ground: 0
  • Finished area above ground: 14,546

Heating & Cooling

  • Heating features: Oil,Forced Air
  • Cooling features: Wall Unit(s)

Interior Area

  • Total structure area: 14,546
  • Total interior livable area: 14,546 sqft

Property

Details

  • Parcel number: DUBLM00003B000001L000000
  • Zoning description: Rural

Features

  • Levels: 3
  • Stories: 3
  • Has view: Yes
  • View description: Mountain(s)

Lot

  • Lot size: 104 Acres
  • Features: Country Setting,Landscaped,Views,Mountain,Rural

Parking

  • Total spaces: 21
  • Parking features: Gravel,Heated Garage,Deeded,Driveway,Parking Spaces 21+,Detached
  • Has garage: Yes
  • Attached garage spaces: 6
  • Covered spaces: 6
  • Has uncovered spaces: Yes

Climate Risk is Financial Risk

Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.

Biggest Threats for This Home

  • Ice Storm
    Ice StormModerate
  • Lightning
    LightningModerate
  • Winter Weather
    Winter WeatherModerate

How This Home’s Risks Compare

Ice Storm
Lightning
Winter Weather

FEMA Declared Disasters Across New Hampshire Counties

Flood
Severe Storm

Understanding the Costs

Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.

Estimated Costs Today

MonthlyAnnual
Mortgage $30,334$364,008
Home Insurance $2,546$30,552
Property Taxes $8,884$106,608
Electricity $2,130$25,562
Total$43,894$526,728

Income You'd Need if You Spent...

35% on housing$1,504,937/yr
40% on housing$1,316,820/yr
45% on housing$1,170,506/yr

How Costs Could Change Over Time

Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.

Insurance Growth Rate5-year average: 0.9%
0.9%
0%30.0%
Electricity Growth Rate10-year average: 8.6%
8.6%
0%15.0%
Property Taxes Growth Rate2-year average: -1.7%
-1.7%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$412This listing

vs Other Active Listings

Avg $/sqft

ZIP 03444$256
Cheshire County$247

vs Homes Sold Last Month

Median $/sqft

ZIP 03444$242
Cheshire County$214

Current Market Trends

Median Price Per Square Foot

The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.

Historicals for This Listing

Zestimate History ($/sqft)

No zestimate history available

Price History

DateEventPrice
2026-03-24Price change$7,500,000
2025-10-13Price change$9,999,000
2025-09-09Listed for sale$15,000,000

For Sale by Agent

AgentSean Bakhtiari
BrokerageCompass New England, LLC

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