Property Attributes
- MLS#885874
- TypeSingle Family
- Listing Status Active
- CountyNASSAU
- CityUpper Brookville
- Zip11545
- StyleEstate,Includes Legal Accessory Apartment
- Year Built1924
- Taxes$ 125619
- Price$ 5,585,000
- Bedrooms9
- Full Bathrooms9
- Half Bathrooms3
- Sqr Footage17587
- Lot Size8.96 Acres
Data Source:
Listings courtesy of OneKey® MLS as distributed by MLS GRID
Property Description
Welcome to GRAY HORSE FARM - Just Updated & Renovated for 2025 luxury living! Recently transformed with a gut-renovated Top of the line chef's kitchen with new cabinets, countertops, backsplash, floor, and high-end appliances. There are six new designer bathrooms, all-new recessed lighting throughout, upgraded 800-AMP electric and utility systems. This grand estate seamlessly blends timeless elegance with modern comforts. A truly iconic Georgian estate nestled in the heart of Upper Brookville, this 17,587 square feet of total living space, this sprawling residence features 9 bedrooms, 9.555+ bathrooms, 10 wood-burning fireplaces, and exquisite architectural details, including vintage millwork, antique hand-painted wallpaper, and Samuel Yellin wrought-iron gates from the JP Morgan estate. Designed in 1924 by renowned architect James W. O’Connor and landscape architect Robert Ludlow Fowler, Gray Horse Farm is where classic architecture meets nearly 9 acres of pristine, equestrian-ready grounds. Perfectly suited for multigenerational living, the estate includes three separate guest/staff quarters (two 1-bedrooms and one 3-bedroom), offering privacy while staying connected. For those who love to entertain and enjoy the outdoors, the estate features a 20' x 55' heated saltwater pool with a pool house that's fully equipped, tennis and basketball courts, and a secret meditation garden you don't want to miss. For the car enthusiast there's a 7-car garage. Equestrian enthusiasts will appreciate the 3-stall stable, multiple paddocks, and run-in horse shed, all designed for top-tier country living. Additional highlights include a whole-house generator, —all just 27 miles from Manhattan. Whether you're seeking a premier equestrian retreat or an expansive generational compound, Gray Horse Farm delivers an unmatched lifestyle of luxury, privacy, and prestige. A rare offering close to top universities,marinas, beaches, golf, museums and americana shopping!
| Elementary School | Middle School | High School |
|---|---|---|
| Ann Macarthur Primary School Elementary School | Locust Valley Middle School | Locust Valley High School |
| Price History | |
|---|---|
| 7/8/2025 | Listed $8,250,000 |
| 8/6/2025 | 5$7,850,000 |
| 10/29/2025 | 5$7,488,000 |
| 3/4/2026 | 3$7,300,000 |
| 5/27/2026 | 11$6,498,000 |
| 7/15/2026 | 15$5,585,000 |
General Features
| Sewer | Cesspool |
|---|---|
| Heating | Forced Air,Natural Gas |
| Cooling | Central Air |
| Utilities | Cable Available,Electricity Connected,Natural Gas Connected,Trash Collection Private,Water Connected |
| Appliances | Dishwasher,Dryer,Gas Range,Microwave,Refrigerator,Stainless Steel Appliance(s),Tankless Water Heater,Washer,Wine Refrigerator |
| Garage Spaces | 7 |
| Patio/Porch Features | Patio,Porch |
| Architectural Style | Estate,Includes Legal Accessory Apartment |
| Pool Features | Fenced,In Ground,Outdoor Pool,Pool Cover,Salt Water |
| Security Features | Security Gate,Smoke Detector(s),Video Cameras |
| Construction Materials | Brick |
| Year Built | 1924 |
| Property Subtype | Single Family Residence |
| Tax Year | 2026 |
| Parcel Number | 2427-22-G-00-0335-0 |
| County | Nassau County |
| Property Type | Residential |
| HOA | No |
| Garage Y/N | Yes |
| Other Structures | Barn(s),Guest House,Pool House,Shed(s),Stable(s) |
| Total Rooms | 23 |
| Full Baths | 9 |
| Directions | GPS |
| High School | Locust Valley High School |
| City | Oyster Bay |
| Senior Community Y/N | No |
| High School District | Locust Valley |
| Carport Y/N | No |
| Elementary School | Ann Macarthur Primary School |
| Property Attached Y/N | No |
| Tax Annual Amount | 125619 |
| Middle/Junior High School | Locust Valley Middle School |
| Property Condition | Updated/Remodeled |
| Building Area Units | Square Feet |
| Standard Status | Active |
| Middle/Junior School District | Locust Valley |
| Elementary School District | Locust Valley |
| PostalCity | Upper Brookville |
| AttributionContact | 516-317-6007 |
| Year Built Effective | 2025 |
| Listing Appliances | Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer, Wine Refrigerator |
Interior Features
| Interior Amenities | First Floor Bedroom,First Floor Full Bath,Beamed Ceilings,Built-in Features,Chefs Kitchen,Crown Molding,Eat-in Kitchen,Elevator,Entrance Foyer,Formal Dining,Granite Counters,His and Hers Closets,In-L |
|---|---|
| Basement | Full,Unfinished,Walk-Out Access |
| Flooring | Hardwood,Tile |
| Total Fireplaces | 11 |
| Fireplace Features | Bedroom,Family Room,Living Room,Wood Burning |
| Formal Dining | Yes |
| Basement Features | Full, Unfinished, Walk-Out Access |
| Basement (Y/N) | Yes |
| Half Baths | 3 |
| Total Bedrooms | 9 |
| Eat-in Kitchen | Yes |
| Total Baths | 12 |
| General Features | First Floor Bedroom,First Floor Full Bath,Beamed Ceilings,Built-in Features,Chefs Kitchen,Crown Molding,Eat-in Kitchen,Elevator,Entrance Foyer,Formal Dining,Granite Counters,His and Hers Closets |
| Walk-In Closet | Yes |
| Entrance Foyer | Yes |
Exterior Features
| Exterior Amenities | Basketball Court,Courtyard,Garden,Tennis Court(s) |
|---|---|
| Fencing | Back Yard,Full |
| Parking Features | Driveway,Garage,Garage Door Opener,Private |
| Water Source | Public |
| Parking Features | Driveway, Garage, Garage Door Opener, Private |
| Waterfront Y/N | No |
| Other Equipment | Generator |
| Horse Y/N | Yes |
| General Features Ext. | Basketball Court,Courtyard,Garden,Tennis Court(s) |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
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