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$10,750,000
10 Days On Site

31 Chestnut Hill Drive
Upper Brookville, NY 11771

For Sale|Single Family Residence|Active
6
Beds
10
Total Baths
6
Full Baths
4
Partial Baths
10,109
SqFt
$1,063
/SqFt
1989
Built
County:
Nassau
Listing courtesy of Serhant East End LLC js@serhant.com
31 Chestnut Hill Drive31 Chestnut Hill Drive31 Chestnut Hill Drive31 Chestnut Hill Drive
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Mortgage Calculator

Monthly Payment (Est.)

$49,046
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

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.

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Listing Snapshot
Price 
$10,750,000
Days On Site 
10 Days
Bedrooms 
6
Inside Area (SqFt) 
10,109 sqft
Total Baths 
10
Full Baths 
6
Partial Baths 
4
Lot Size 
5 Acres
Year Built 
1989
MLS® Number 
970669
Status 
Active
Property Tax 
$46,351.4
HOA/Condo/Coop Fees 
$125
Sq Ft Source 
N/A
Friends & Family
Recent Activity
a week agoStatus changed to Active
a week agoListing updated with changes from the MLS®
2 weeks agoListing first seen on site
General Features
Acres 
5
Garage 
Yes
Garage Spaces 
4
Parking 
DrivewayGarage Door OpenerPrivate
Property Sub Type 
Single Family Residence
Security 
Security GateSecurity LightsSecurity System
Sewer 
Cesspool
SqFt Total 
10109
Style 
ContemporaryModern
Utilities 
Electricity ConnectedPropane
Water Source 
Public
Interior Features
Appliances 
DishwasherDryerMicrowaveOvenRefrigeratorWasher
Basement 
FinishedFullWalk-Out Access
Cooling 
Central Air
Fireplace 
Yes
Fireplace Features 
Electric
Fireplaces 
2
Flooring 
HardwoodTile
Heating 
Electric
Interior 
ChandelierEat-in KitchenEntrance FoyerHigh CeilingsKitchen IslandMaster DownstairsSmart ThermostatWalk-In Closet(s)Wet Bar
Window Features 
Skylight(s)
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Exterior Features
Construction Details 
Frame
Exterior 
Lighting
Lot Features 
Back YardLevelNear Golf CoursePrivate
Other Structures 
Guest House
Patio And Porch 
Patio
Pool Features 
In GroundSalt WaterPrivate
Private Pool 
Yes
Windows/Doors 
Skylight(s)
Community Features
Association Dues 
125
School District 
Locust Valley
Schools
School District
Locust Valley
Elementary School
Ann Macarthur Primary School
Middle School
Locust Valley Middle School
High School
Locust Valley High School
Listing courtesy of Serhant East End LLC js@serhant.com


Based on information submitted to the MLS GRID as of 2026-03-24 10:08 AM EDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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