Perched above the rolling hills of Millbrook Hunt Country with sweeping Catskill Mountain views, this idyllic retreat and exceptional equestrian estate spans 185 ultra-private acres. Once the beloved property of Margaret Carnegie, only child of Andrew Carnegie, the estate preserves a rich legacy of elegance and prestige. Originally built in 1865, it has been thoughtfully expanded to blend historic grandeur with modern luxury. The main residence offers timeless refinement, including a paneled library with fireplace, an elegant dining room that seats 30, and a grand living room with soaring ceilings and French doors opening to a sunset terrace overlooking the Catskills. At the heart of the estate is a world-class equestrian facility designed by renowned French architect Atelier Choiseul, featuring state-of-the-art stables, paddocks, a tack room, staff housing, and a sophisticated lounge, along with a hunter trial course. Miles of fenced pastures, private riding trails, ponds, and serene landscapes sit just minutes from the village of Millbrook and within 90 minutes of Manhattan. The vast acreage provides a quintessential pastoral experience and room for additional recreational or residential expansion. With its privacy, history, and unmatched amenities, this is a rare legacy property offering the finest expression of Hudson Valley luxury.
For sale
Price cut: $1M (1/15)
$10,995,000
121 Butts Hollow Road, Millbrook, NY 12545
9beds
13,737sqft
Single Family Residence
Built in 1865
185 Acres Lot
$10,382,900 Zestimate®
$800/sqft
$-- HOA
What's special
Timeless refinementSophisticated loungeState-of-the-art stablesHunter trial courseMiles of fenced pasturesPaneled library with fireplaceSerene landscapes
- 59 days |
- 1,058 |
- 62 |
Zillow last checked: 8 hours ago
Listing updated: 21 hours ago
Listing by:
Douglas Elliman of Connecticut 203-622-4900,
John A. Oliveira (914)447-2081
Source: Smart MLS,MLS#: 24140459
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 9
- Bathrooms: 10
- Full bathrooms: 9
- 1/2 bathrooms: 1
Primary bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Bedroom
- Level: Upper
Heating
- Hot Water, Oil
Cooling
- Central Air
Appliances
- Included: Convection Oven, Range Hood, Refrigerator, Freezer, Dishwasher, Washer, Dryer, Water Heater
Features
- Basement: Full
- Attic: Walk-up
- Number of fireplaces: 3
Interior area
- Total structure area: 13,737
- Total interior livable area: 13,737 sqft
- Finished area above ground: 13,737
Property
Lot
- Size: 185 Acres
- Features: Farm
Details
- Parcel number: 999999999
- Zoning: R
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence
Materials
- Other
- Foundation: Concrete Perimeter, Stone
- Roof: Asphalt
Condition
- New construction: No
- Year built: 1865
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
Community & HOA
Community
- Security: Security System
HOA
- Has HOA: No
Location
- Region: Millbrook
Financial & listing details
- Price per square foot: $800/sqft
- Tax assessed value: $6,946,700
- Annual tax amount: $77,196
- Date on market: 11/18/2025
Estimated market value
$10,382,900
$9.66M - $11.11M
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 1/15/2026 | Price change | $10,995,000-8.3%$800/sqft |
Source: | ||
| 11/18/2025 | Listed for sale | $11,995,000$873/sqft |
Source: | ||
Public tax history
Public tax history
Tax history is unavailable.BuyAbility℠ payment
Estimated monthly payment
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Neighborhood: 12545
Nearby schools
GreatSchools rating
- 5/10Alden Place Elementary SchoolGrades: 3-5Distance: 3 mi
- 6/10Millbrook Middle SchoolGrades: 6-8Distance: 2.9 mi
- 8/10Millbrook High SchoolGrades: 9-12Distance: 3 mi
Schools provided by the listing agent
- Middle: Millbrook,Alden Pl
- High: Millbrook
Source: Smart MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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