4 Windmill Hill Road, Dublin, NH, 03444 | $7,500,000

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.

Features

  • Rooms: 25
  • Bedrooms: 13
  • Baths: 9 full / 1 half
  • Style: Georgian
  • Year Built: 1900
  • Garage: 6-car Garage
  • Heating: Oil,Forced Air
  • Cooling: Wall AC Units
  • Basement: Partial
  • Approx Sq. Feet: 14,546
  • Acreage: 104
  • Est. Taxes: $64,110
  • Lot Desc: Country Setting,Landscaped,Mountain View,View,Mountain,Rural
  • MLS#: 5059572
  • Website: https://www.raveis.com
    /eprop/5059572/4windmillhillroad_dublin_nh?source=qrflyer
©2026 New England Real Estate Network, Inc. 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 PrimMLS. 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 4/16/2026

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4 Windmill Hill Road, Dublin, NH, 03444

$7,500,000

Kristin Fitzpatrick

Sales Associate

William Raveis Real Estate

Phone: 413.205.7012

Kristin.Fitzpatrick@raveis.com

Michele Welch

VP, Mortgage Banker

William Raveis Mortgage, LLC

Phone: 413.626.5626

Michele.Welch@raveis.com

NMLS Mortgage Loan Originator ID 293220

5/6 (30 Yr)
Adjustable Rate Jumbo*
30 Year
Fixed-Rate Jumbo
15 Year
Fixed-Rate Jumbo
Loan Amount $6,000,000 $6,000,000 $6,000,000
Term 360 months 360 months 180 months
Initial Interest Rate** 5.250% 6.000% 5.750%
Interest Rate based on Index + Margin 8.125%
Annual Percentage Rate 6.069% 6.110% 5.932%
Monthly Tax Payment $5,343 $5,343 $5,343
H/O Insurance Payment $125 $125 $125
Initial Principal & Interest Pmt $33,132 $35,973 $49,825
Total Monthly Payment $38,599 $41,440 $55,292

* The Initial Interest Rate and Initial Principal & Interest Payment are fixed for the first and adjust every six months thereafter for the remainder of the loan term. The Interest Rate and annual percentage rate may increase after consummation. The Index for this product is the SOFR. The margin for this adjustable rate mortgage may vary with your unique credit history, and terms of your loan.

** Mortgage Rates are subject to change, loan amount and product restrictions and may not be available for your specific transaction at commitment or closing. Rates, and the margin for adjustable rate mortgages [if applicable], are subject to change without prior notice.

The rates and Annual Percentage Rate (APR) cited above may be only samples for the purpose of calculating payments and are based upon the following assumptions: minimum credit score of 740, 20% down payment (e.g. $20,000 down on a $100,000 purchase price), $1,950 in finance charges, and 30 days prepaid interest, 1 point, 30 day rate lock. The rates and APR will vary depending upon your unique credit history and the terms of your loan, e.g. the actual down payment percentages, points and fees for your transaction. Property taxes and homeowner's insurance are estimates and subject to change.