53 Simonson Road, Old Brookville, NY

$12,800,000

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10

Beds

15

Baths

20,000

Square feet

6.28

Acres

About 53 Simonson Road

Situated behind two private gates, in one of Long Island’s most prestigious enclaves, this newly constructed 10 bedroom, 15 bathroom modern estate is a masterclass in elevated design and luxurious living. Set on an expansive, meticulously landscaped property, the residence pairs timeless architectural grandeur with sleek, contemporary finishes to create a rare and refined sanctuary. A striking stone and stucco facade with oversized black-trim windows sets a sophisticated tone upon arrival. Inside, a dramatic marble foyer with a sweeping spiral staircase unveils the heart of the home: a voluminous great room featuring soaring ceilings, a sleek gas fireplace, bespoke wet bar, and walls of glass that dissolve the boundary between indoors and out. Every inch of this residence speaks to thoughtful luxury. The chef’s kitchen is clad in two-toned cabinetry, boasts a suite of chef-grade stainless steel appliances and thick-cut stone countertops. The welcoming family room has a warm fireplace with a custom, stone mantel and beautiful natural wood built-ins. Entertain effortlessly in the formal dining room, designed to host 14+ guests, supported by a fully outfitted butler’s pantry. Designed for both grand entertaining and intimate day-to-day living, the main level also features a spacious home office with a private sitting area, two elegant powder rooms, a guest-ready first-floor bedroom suite, an elevator and a mudroom conveniently located off of the 4-car attached garage. Upstairs, the primary wing evokes the atmosphere of a five-star hotel, complete with a private lounge, dressing and vanity area, spa-like bath with an oversized rain shower and soaking tub, radiant heated floors, and multiple walk-in closets, with custom wardrobe installations. There are four additional bedrooms, four marble full-bathrooms and an expansive laundry room. The walk-out lower level is a world unto itself, beginning with a dramatic foyer framed by a floor-to-ceiling wine display wall. Details include a one-bedroom guest suite, media or den space, full bath, a state-of-the-art gym with sound system and sauna, and a full-scale golf simulator for year-round recreation. Outdoors, the resort-quality amenities continue with a covered patio with a fireplace, a built-in kitchen, and a sparkling in-ground pool and spa. A poolside cabana offers yet another luxe retreat, complete with a kitchenette, lounge, changing rooms, and full bath. Beyond the main residence, a two-story barn with a loft serves as an 8-stall equestrian facility or an extraordinary car collector's gallery, accompanied by a fully-appointed five-bedroom guest house for extended stays or guest quarters. Nestled in a picturesque and ultra-private setting, this 20,000+ Sq.Ft. Old Brookville masterpiece redefines modern estate living with unmatched elegance, scale, and functionality. Located within the North Shore School District.

Features of 53 Simonson Road

MLS® # 922932
Price $12,800,000
Bedrooms 10
Bathrooms 15.00
Full Baths 13
Half Baths 2
Square Footage 20,000
Square Footage 273557
Acres 6.28
Year Built 2018
Type Residential
Sub-Type Single Family Residence
Style Estate
Status Active

Community Information

Address 53 Simonson Road
City Old Brookville
County Nassau County
State NY
Zip Code 11545

Amenities

Utilities Electricity Connected, Natural Gas Connected, Trash Collection Public, Water Connected
Parking Attached, Heated Garage, Oversized
# of Garages 4
View Open
Is Waterfront No
Has Pool Yes
Pool In Ground, Outdoor Pool, Pool/Spa Combo

Interior

Interior Hardwood, Tile
Interior Features First Floor Bedroom, First Floor Full Bath, Built-in Features, Cathedral Ceiling(s), Central Vacuum, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, Elevator, Entertainment Cabinets, Entrance Foyer, Formal Dining, High Ceilings, His and Hers Closets, Kitchen Island, Marble Counters, Natural Woodwork, Open Floorplan, Open Kitchen, Pantry, Primary Bathroom, Sauna, Soaking Tub, Sound System, Speakers, Stone Counters, Storage, Walk-In Closet(s), Washer/Dryer Hookup, Wet Bar
Appliances Convection Oven, Cooktop, Dishwasher, Dryer, Exhaust Fan, Freezer, Gas Cooktop, Gas Oven, Gas Range, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Wine Refrigerator
Heating Natural Gas, Radiant, Radiant Floor
Cooling Central Air
Fireplace Yes
# of Fireplaces 6
Fireplaces Bedroom, Family Room, Living Room
Has Basement Yes
Basement Finished, Full, Walk-Out Access

Exterior

Exterior Features Balcony, Rain Gutters, Speakers
Lot Description Back Yard, Front Yard, Landscaped, Level
Windows Floor to Ceiling Windows, Oversized Windows, Wall of Windows
Construction Stone, Stucco

School Information

District North Shore
Elementary Glen Head Elementary School
Middle North Shore Middle School
High North Shore Senior High School

Additional Information

Date Listed October 15th, 2025
Days on Market 3
Short Sale No
RE / Bank Owned No

Listing Details

OfficeDaniel Gale Sothebys Intl Rlty
Contact Info516-466-4036

Listing Map

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