31 Chestnut Hill Drive, Upper Brookville, NY 11771

• 6 beds |
• 10 baths |
• 10,109 sqft

Property Description

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.

Listing Status:

Active

Data Last Updated:

June 25, 2026 at 2:21PM

Listing Office:

Serhant East End LLC : 646-480-7665

MLS ID:

970669

Interior

• General: First Floor BedroomFirst Floor Full BathChandelierChefs KitchenEat-in KitchenEntrance FoyerFormal DiningHigh CeilingsKitchen IslandPrimary BathroomMaster DownstairsQuartz/Quartzite CountersSmart ThermostatWalk-In Closet(s)Wet Bar
• Appliances: DishwasherDryerMicrowaveOvenRefrigeratorWasher
• Basement: FinishedFullWalk-Out Access
• Flooring: HardwoodTile
• A/C: Central Air
• Heating: Electric
• Fireplace: ElectricFireplaceFireplaces: 2

Exterior

• General: Lighting
• Style: ContemporaryModern
• Other Structures: Guest HousePatio
• Pool: In GroundSalt Water
• Parking: DrivewayGarage Door OpenerPrivate

Construction

• Windows: CasementFloor to Ceiling WindowsSkylight(s)

Location

• HOA Amenities: 125.0
• Originating MLS: onekey2
• School District: Locust Valley
• County: Nassau County

Lot

• Zoning: 2427-24-E-00-1046-0

Utilities

• Utilities: Electricity ConnectedPropane
• Water: Public
• Sewer: Cesspool

Financial

• Source: onekey2