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50 Cecilia Drive

Muttontown, NY 11791
  • $5,498,000
  • STATUS: Active
  • ON SITE: 82 Days
  • MLS #: 945621
UPDATED: 40 min ago
$5,498,000
  • 7
    BEDS
  • 2
    ACRES
  • 6
    BATHS
  • 2
    1/2 BATHS
  • 8,000
    SQFT
  • $687
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
2026
County:
Area:

School Information

Elementary School:
School District:

Description

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 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 mansion. A grand courtyard entrance leads to custom-crafted oversized iron doors that 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. Ready Spring 2027 Time To Customize!

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© 2026 OneKey MLS. All rights reserved. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or Sheil Estate | Coldwell Banker Realty. Data last updated: 2026-07-13T13:21:52.637.
www.sheilestate.com/homes/175629737
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50 Cecilia Drive Muttontown, NY 11791

  • Price: $5,498,000
  • Status: Active
  • On Site: 82 Days
  • Updated: 40 min ago
  • MLS #: 945621
7
Beds
6
Baths
2
½ Baths
2
Acres
8,000
SQFT
$687
$/SQFT
2026
Built
Neighborhood:
Oyster Bay
County:
Nassau
Area:
Oyster Bay
Elementary School:
Robbins Lane Elementary School
Middle School:
H B Thompson Middle School
High School:
Syosset Senior High School
School District:
Syosset
Property Description
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 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 mansion. A grand courtyard entrance leads to custom-crafted oversized iron doors that 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. Ready Spring 2027 Time To Customize!
Exterior Features

Architectural Style Mini Estate Carport YN No Construction Materials StoneStucco Exterior Features CourtyardJuliet BalconyLighting Garage YN Yes Lot Features LandscapedLevelPrivateSprinklers In FrontSprinklers In RearViews Parking Features DrivewayElectric Vehicle Charging Station(s)GarageOversizedPrivate Parking Total 10 Patio And Porch Features PatioTerrace Pool Private YN Yes Property Attached YN No Waterfront YN No Window Features ENERGY STAR Qualified WindowsFloor to Ceiling WindowsWall of Windows

Interior Features

Additional Rooms Dining AreaHome OfficeLibrary/DenMedia Room Appliances ENERGY STAR Qualified Appliances Attic Full Basement Details FullWalk-Out Access Basement YN Yes Cooling Central AirENERGY STAR Qualified Equipment Fireplace Features Family RoomGas Fireplace YN Yes Fireplaces Total 1 Flooring Hardwood Interior Features First Floor BedroomFirst Floor Full BathBidetBuilt-in FeaturesCathedral Ceiling(s)Central VacuumChandelierChefs KitchenCrown MoldingDouble VanityEat-in KitchenENERGY STAR Qualified Door(s)Entertainment CabinetsEntrance FoyerFormal DiningHigh CeilingsHis and Hers ClosetsIn-Law FloorplanKitchen IslandOpen FloorplanPantryPrimary BathroomQuartz/Quartzite CountersRecessed LightingSmart ThermostatSoaking TubSound SystemTray Ceiling(s)Walk-In Closet(s)Whole House Entertainm Laundry Features Laundry Room Number Of Heating Zones 3 Rooms Total 15

Property Features

Association YN No Down Payment Resource YN No Heating ENERGY STAR Qualified EquipmentNatural GasRadiant Floor Lease Considered YN No Property Condition New ConstructionTo Be BuiltUnder Construction Property Sub Type Single Family Residence Senior Community YN No Sewer Cesspool Special Listing Conditions None Tax Annual Amount 0 Tax Source Municipality Utilities Natural Gas Available Water Source Public

Listing courtesy of Valerie A. Rosenblatt Psa of Daniel Gale Sothebys Intl Rlty: 516-238-7396
© 2026 OneKey MLS. All rights reserved.


© 2026 OneKey MLS. All rights reserved. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or Sheil Estate | Coldwell Banker Realty. Data last updated: 2026-07-13T13:21:52.637.
 
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