For Sale
31 Chestnut Hill Drive Upper Brookville, NY 11771
$8,994,999
Listed March 12, 2026, 181 days ago
Listing courtesy of Ephraim J. Simon, Serhant East End LLC MLS #KEY970669
- 6Bedrooms
- 8Bathrooms
- 10,109Square feet
- $890Per square foot
- 1989Year built
About this home
ENTIRE PROPERTY WAS COMPLETELY RENOVATED FROM 2023 T0 2026. Maison Blanche: An Architectural Icon in Upper Brookville Experience the pinnacle of ultra-modern luxury at 31 Chestnut Hill Drive. Set on five flat, private acres at the crest of a premier cul-de-sac, this architectural sanctuary was originally designed by the renowned architect Gary Gallagher and redesigned by award-winning FAIA architect Stuart Narofsky, leading to an extensively renovated (2023–2026) masterpiece. The residence features six bedrooms with en-suite bathrooms, four additional half-baths, to include an expansive first-floor primary suite. Architectural highlights include two custom floating staircases with glass railings, porcelain and white oak floors, and frameless full-bodied Belldinni doors. The chef’s kitchens in the main and guest houses are equipped with Wi-Fi-controlled Thermador appliances and specialty quartz islands. Uniquely designed for wellness and entertainment, the second-floor features 3 bedrooms and a private gym and Finnish sauna, while the lower level boasts a Dolby-Atmos theater, wine tasting room, a yoga/massage spa, and a wet bar. Outside, a heated saline pool and spa are framed by a porcelain patio and an unobstructing glass railing, and an outdoor wet kitchen. App-controlled for the modern age, the estate features smart management of the custom steel entry gate, five-zone HVAC, motorized shades, security, and a whole-house generator. This is the new standard of Gold Coast living.
Description supplied by the listing broker.
Features
- First Floor Bedroom
- First Floor Full Bath
- Chandelier
- Chefs Kitchen
- Eat-in Kitchen
- Entrance Foyer
- Formal Dining
- High Ceilings
- Kitchen Island
- Primary Bathroom
- Master Downstairs
- Quartz/Quartzite Counters
- Smart Thermostat
- Walk-In Closet(s)
Property details
Interior
- Kitchens
- 2
- Flooring
- Hardwood, Tile
- Windows
- Casement, Floor to Ceiling Windows, Skylight(s)
- Fireplace
- Yes
- Fireplaces
- 2
- Appliances
- Dishwasher, Dryer, Microwave, Oven, Refrigerator, Washer
Systems and utilities
- Heating
- Electric
- Heating zones
- 5
- Cooling
- Central Air
- Utilities
- Electricity Connected, Propane
- Water
- Public
Exterior and lot
- Construction
- Frame
- Architectural style
- Contemporary, Modern
- Parking
- Driveway, Garage Door Opener, Private
- Private pool
- Yes
- Pool
- In Ground, Salt Water
- Patio and porch
- Patio
- Lot features
- Back Yard, Level, Near Golf Course, Private
Tax and legal
- Parcel number
- 2427-24-E-00-1046-0
- Listing agreement
- Exclusive Right To Sell
Property details supplied by the listing broker through OneKey MLS, as of September 11, 2026. Fields not shown were not supplied and should not be read as absent from the property.
This listing
- September 2, 2026 Reduced to $8,994,999 from $8,995,000
Location
31 Chestnut Hill Drive, Upper Brookville, NY 11771
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