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Size: 185 Acres
Type: Farms
Home: 9 beds - 9 full baths - 1 half bath - 13,737 Sq Ft

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Hallmark Farm Auction
125 Butts Hollow Road, Millbrook, NY
Start Date: 07/09/2026, 07:00 PM ET
End Date: 07/09/2026, 08:00 PM ET
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Hallmark Farm

PREVIOUSLY $20 MILLION. NOW SELLING AT OR ABOVE $7.95 MILLION!

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 upda...

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Listing last updated: July 10, 2026 at 2:30 AM
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