Hallmark Farm
Butts Hollow Rd, Millbrook, NY
185
ACRES
9
BEDROOMS
9.5
BATHS
13,982
SQ FT
10
STALLS
EQUESTRIAN AT A GLANCE
10-Stall
Equine Barn
Riding & Training
Arena Footing
185.0 Ac
Land & Pastures
Turnout Paddocks
Fenced Turnout
Water Infrastructure
Water to Fields
Wash & Prep Area
Wash & Grooming
ESTATE GALLERY
26 Photos
+22
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PREVIOUSLY $20 MILLION. NOW SELLING AT OR ABOVE $7.95 MILLION!
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NOW SELLING AT OR ABOVE $7.95 MILLION!— Platinum Luxury Auctions, HorseAcre
Set within the rolling hills of Millbrook Hunt Country and framed by sweeping panoramic mountain views, this extraordinary country estate encompasses approximately 185 private acres in one of the Hudson Valley’s most established sporting landscapes. Once the cherished country retreat and Elk preserve of industrialist and philanthropist Andrew Carnegie’s only child, Margaret Carnegie. The property carries a distinguished legacy that continues to shape its character today. Originally constructed in 1865, the property has been thoughtfully expanded and renovated over time, preserving its historic significance while introducing modern comforts and amenities suited to contemporary living.
Spanning more than 13,700 sf across multiple structures, the estate offers a total of nine bedrooms, nine full baths, and one half bath. An updated main residence combines grand entertaining spaces with inviting everyday living areas, including a richly paneled library with a fireplace, a formal dining room capable of hosting up to 30 guests, and a dramatic living room with soaring 20-ft ceilings, a fireplace, and French doors that open to a terrace with extraordinary mountain views. A renovated chef’s kitchen features Viking and Bosch appliances, a breakfast room, and spaces designed for both large gatherings and casual family meals. Upstairs, the primary suite includes a sitting room, dressing room, and private bath, while additional bedrooms provide the perfect interplay of past and present. Modern enhancements, including an elevator and carefully integrated expansions, complement the residence’s historic architecture.
The estate’s equestrian facilities are equally impressive. Designed by renowned French architectural firm Atelier Choiseul, the equestrian facilities include a 10-stall barn with a tack room, staff housing, and a refined lounge, plus meticulously maintained paddocks ranging from six to twelve acres, e
FACILITIES OVERVIEW
Equestrian Facilities & Infrastructure
5 Verified Equine Features
Stalls & Barn
10 Stalls (Main Barn)
Riding Arena
Riding & Training Facilities
Pasture & Fencing
185.0 Acres Fenced
Water & Access
Ag Well & Trailer Access
Individual Turnout Paddocks
Fencing & Pastures
Year-Round Creek / Stream
Water Features & Land
In-Ground Spa / Hot Tub
Water Features & Land
Primary Luxury Estate Residence
Housing & Security
ESTATE ARCHITECTURE & LIVING
The Residence & Private Grounds
9 Bedrooms
•
9.5 Baths
•
13,982 Sq Ft
•
Established Estate
Bedrooms / Baths
9 Bed / 9.5 Bath
Living Area
13,982 Sq Ft
Garage & Parking
Ample Parking & Storage
Special Amenities
Equestrian Estate Living
Residence & Interior Features
13,982 sq ft of thoughtfully designed living space
9 bedrooms with 9.5 baths and primary suite
Secondary guest house / staff quarters with private entrance
Gourmet chef's kitchen with premium finishes and dining area
Fireplace and open living room overlooking grounds and pastures
EQUESTRIAN ENVIRONS & LOCAL AMENITIES
Area Map, Vets, Venues & Schools
Butts Hollow Rd, Millbrook, NY
39 Nearby Landmarks • 10 Regional Listings
Equine Vet / Hospital
Major Show Venue
Local School
Airport & Jet FBO
Feed & Tack Supply
Medical Center
Verified Local Facilities & Distances
Click any location to locate on map
Equine Veterinary & Surgical Hospitals
Regional equine veterinary and surgical center distances available upon inquiry.
Equestrian Venues & Showgrounds
Major equestrian competition and arena distances available upon inquiry.
Local Public & Private Schools
Greer School
Public / Private School
1.4 mi
~3 min drive
Dutchess Day School
Public / Private School
1.9 mi
~3 min drive
Bell School
Public / Private School
4.8 mi
~8 min drive
Wassaic State School
Public / Private School
5.6 mi
~8 min drive
Clove School
Public / Private School
5.9 mi
~8 min drive
Millbrook School
Public / Private School
7.8 mi
~11 min drive
Airports & Executive Aviation (FBO)
Regional municipal airport and executive FBO travel times available upon request.
Feed, Hay & Tack Outfitters
Nearby feed, hay, and farm outfitter locations available upon inquiry.
Regional Emergency & Medical Centers
Regional emergency medical and trauma center distances available upon inquiry.
CURATED SELECTION
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70
HorseScore Analysis
Established Equestrian Estate
HorseScore evaluates over 30 equine, land, and facility benchmarks to deliver an objective rating of equestrian readiness, functionality, and market value.
Barn & Stabling
18 / 20 pts
Acreage & Pastures
20 / 20 pts
Riding & Training
4 / 20 pts
Location & Equestrian Environs
10 / 15 pts
Trails & Water Infrastructure
12 / 15 pts
Estate & Accommodations
6 / 10 pts
Equine Benchmark: Score reflects stabling capacity, turnout/pasture acreage, arena footings, safety fencing, riding trails, and water infrastructure.