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$5,498,000
New Listing

50 Cecilia Drive
Muttontown, NY 11791

For Sale|Single Family Residence|Active
7
Beds
8
Total Baths
6
Full Baths
2
Partial Baths
8,000
SqFt
$687
/SqFt
2026
Built
County:
Nassau
Listing courtesy of Daniel Gale Sothebys Intl Rlty valerierosenblatt@live.com
50 Cecilia Drive50 Cecilia Drive50 Cecilia Drive50 Cecilia Drive
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Monthly Payment (Est.)

$25,084
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

An Exceptional New Construction Estate in Muttontown, located within the renowned Syosset School District. 'The Diamond' sets a striking new benchmark for refined living. This exquisite 8,000-square-foot residence offers seven bedrooms, 15 rooms and a fresh, contemporary layout designed for today’s most elevated lifestyles. Meticulously envisioned, 'The Diamond' reflects an extraordinary level of craftsmanship, thoughtful design and an aesthetic precision that blends seamlessly with classic architectural detailing. Expansive sweeping light-filled interiors create a home that is both sophisticated and welcoming. Generous ceiling heights, dramatic walls of glass, and a seamless flow between indoor and outdoor spaces define the overall design. Custom-crafted oversized iron doors dramatically unveil a breathtaking two-story entry foyer. The formal dining room features a connoisseur’s wine center with smoky glass accents that shimmer with understated drama, and a serving buffet crowned by a sculptural hanging etagere. The grand living room is anchored by a commanding two-sided modern fireplace that offers open views of the lush 2 acre property. The bespoke chef’s kitchen serves as a true centerpiece, equipped with premium Wolf and Sub-Zero appliances, custom cabinetry, and a spacious layout ideal for both everyday living and large gatherings. A fully equipped scullery kitchen adds an additional layer of convenience and sophistication for those who entertain on a grand scale. The main level further unfolds with guest quarters, a private study, state-of-the-art media room, and a secondary staircase. Ascending to the primary suite is to enter a private world of luxury: a serene balcony overlooking the property, a spa-inspired bath, a private sitting room, and multiple expansive walk-in closets befitting the most discerning wardrobe collections. The second level continues with a spacious lounge and four additional en-suite bedrooms, each a haven of comfort and privacy. Outdoor living is equally impressive, with fully approved plans to consider upgrades for a resort-style spa pool and an open-air pavilion complete with its own kitchen creating an alfresco realm of unparalleled leisure. The 10-foot lower level also stands ready to fulfill any vision. 'The Diamond' is not merely a home, it is a residence designed for the discerning, where high-style luxury meets the ease and functionality of everyday living. Construction has commenced on this singular masterpiece.

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Listing Snapshot
Price 
$5,498,000
Days On Site 
0 Days
Bedrooms 
7
Inside Area (SqFt) 
8,000 sqft
Total Baths 
8
Full Baths 
6
Partial Baths 
2
Lot Size 
2.0034 Acres
Year Built 
2026
MLS® Number 
945621
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
2 hours agoListing first seen on site
2 hours agoListing updated with changes from the MLS®
General Features
Acres 
2.0034
Garage 
Yes
Garage Spaces 
3
Parking 
DrivewayElectric Vehicle Charging Station(s)GarageOversizedPrivate
Parking Spaces 
10
Property Condition 
New ConstructionUnder Construction
Property Sub Type 
Single Family Residence
Sewer 
Cesspool
Style 
Mini Estate
Utilities 
Natural Gas Available
Water Source 
Public
Interior Features
Appliances 
ENERGY STAR Qualified Appliances
Basement 
FullWalk-Out Access
Cooling 
Central AirENERGY STAR Qualified Equipment
Fireplace 
Yes
Fireplace Features 
Family RoomGas
Fireplaces 
1
Flooring 
Hardwood
Heating 
ENERGY STAR Qualified EquipmentNatural GasRadiant Floor
Interior 
BidetBuilt-in FeaturesCathedral Ceiling(s)Central VacuumChandelierCrown MoldingDouble VanityEat-in KitchenEntrance FoyerHigh CeilingsHis and Hers ClosetsIn-Law FloorplanKitchen IslandOpen FloorplanPantryRecessed LightingSmart ThermostatSoaking TubSound SystemTray Ceiling(s)Walk-In Closet(s)Wired for Sound
Laundry Features 
Laundry Room
Window Features 
ENERGY STAR Qualified Windows
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Exterior Features
Construction Details 
StoneStucco
Exterior 
CourtyardLighting
Lot Features 
LandscapedLevelPrivateSprinklers In FrontSprinklers In RearViews
Patio And Porch 
PatioTerrace
Pool Features 
Private
Private Pool 
Yes
Windows/Doors 
ENERGY STAR Qualified Windows
Community Features
School District 
Syosset
Schools
School District
Syosset
Elementary School
Robbins Lane Elementary School
Middle School
H B Thompson Middle School
High School
Syosset Senior High School
Listing courtesy of Daniel Gale Sothebys Intl Rlty valerierosenblatt@live.com


Based on information submitted to the MLS GRID as of 2026-04-21 07:10 PM 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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