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6 Beds
10 Baths
10,109 sqft

$8,994,999

31 Chestnut Hill Drive, Upper Brookville NY, 11771

Price per sqft$889.80
Built in1989
Property size10,109 sqft
Property typeResidential
Courtesy of Serhant East End LLC, Ephraim J. Simon Listing Contact: 6314082137

Overview

Active

Listed Mar 14, 2026

Updated 4 days ago

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.

$59,844/mo

Est. mortgage payment based on a $8,994,999 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
970669

Interior Features

Bedrooms
6
Bathrooms
10
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
5 Acres

Other Property Details

Taxes
$46,351
Tax Frequency
Annually
Garage
Yes
Pool
Yes
55+/Senior Community
No

Listings courtesy of OneKey MLS as distributed by MLS GRID

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Based on information submitted to the MLS GRID as of 4:43 AM UTC on 9/12/2026. 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.

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