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Eleanor Hershey

Licensed Real Estate Salesperson

  • Office 914-401-9700
  • Cell 9145223020

159 Mahopac Avenue, Granite Springs, NY – $100,000,000

  • 8 Beds
  • 12 Baths
  • 28,000 Sqft
  • 740 Acres
  • 8 Beds
  • 12 Baths
  • 28,000 Sqft
  • 740 Acres

159 Mahopac Avenue

STONEWALL FARM features 19 consecutive parcels totaling 740 acres, Westchester's largest equestrian estate and is dedicated to raising championship thoroughbred horses. The SMART, slate roofed house was designed by top designers in 2004 and is 24,000 sq ft. Wide center hall to parlor and solarium open to bluestone terrace. Dining room connects to butler's pantry and vast eat-in chef's kitchen, den. Two story library features leather floors. There's a 2,200 bottle wine cellar, tasting room, game room and pub. Eight bedrooms, 8 full baths, 4 half baths, and 9 fireplaces. The elevator services all levels. Private top master floor has commanding views. A wisteria colonnade connects to a 4,000 sq ft pavilion with a 60' heated pool, jacuzzi, fireplace, gym, sauna, kitchen and changing rooms. Equestrian: turf racetrack, riding trails, 40 stall yearling barn, two 24 stall broodmare barns, round pens, and 4 board fenced paddocks with run-in sheds. There is a guest house and additional housing.

Essential Information

  • MLS® #H6086509
  • Price$100,000,000
  • Bedrooms8
  • Bathrooms12.00
  • Full Baths8
  • Half Baths4
  • Square Footage28,000
  • Acres740.00
  • Year Built2004
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleColonial, Estate
  • StatusActive

Community Information

  • Address159 Mahopac Avenue
  • CityGranite Springs
  • CountyWestchester
  • StateNY
  • Zip Code10527


  • AmenitiesKitchen In Clubhouse
  • FeaturesPrivate
  • # of Garages1
  • Has PoolYes
  • PoolInground Pool


Attached, 1 Car Attached, Detached, 4+ Car Detached, Heated Garage


Attached, 1 Car Attached, Detached, 4+ Car Detached, Heated Garage


Mountain(s), Other, Panoramic, Water


  • InteriorHardwood
  • HeatingOil, Forced Air
  • CoolingCentral Air
  • Has BasementYes
  • FireplaceYes
  • # of Fireplaces8

Interior Features

Eat-in Kitchen, Elevator, Exercise Room, Formal Dining Room, Entrance Foyer, Master Bath, Pantry, Storage, Walk-In Closet(s), Wet Bar, Cathedral Ceiling(s), Guest Quarters, Marble Countertops, Powder Room, Sauna


Dishwasher, Dryer, Oven, Refrigerator, Wine Cooler


Finished, Full, Walk-Out Access


  • Exterior FeaturesSprinkler Lawn System, Balcony
  • Lot DescriptionPrivate
  • WindowsSkylight(s)


Frame, ICFs (Insulated Concrete Forms), Clapboard, LEED-Gold


Frame, ICFs (Insulated Concrete Forms), Clapboard, LEED-Gold

School Information

  • DistrictSomers
  • ElementaryPrimrose School
  • MiddleSomers Middle School
  • HighSomers Senior High School

Additional Information

  • Date ListedDecember 9th, 2020
  • HOA Fees0.00

Listing Details

  • Listing Courtesy ofChristies Int. Real Estate
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Listing Courtesy of Christies Int. Real Estate.

The data relating to real estate for sale or lease on this web site comes in part from HGMLS. Real estate listings held by brokerage firms other than Giner Realty are marked with the HGMLS logo or an abbreviated logo and detailed information about them includes the name of the listing broker.

Information deemed reliable but not guaranteed.

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Listing information last updated on September 26th, 2021 at 3:00pm EDT.