Water Front Luxury Realty

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$5,899,999
29 Days On Site

20 Knollwood Road
Brookville, NY 11545

For Sale|Single Family Residence|Active
6
Beds
8
Total Baths
7
Full Baths
1
Partial Bath
7,000
SqFt
$843
/SqFt
2026
Built
County:
Nassau
Listing courtesy of LAFFEY REAL ESTATE jberookhim@laffeyRE.com

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987-456-3210
20 Knollwood Road20 Knollwood Road20 Knollwood Road20 Knollwood Road
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Monthly Payment (Est.)

$26,918
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EXCEPTIONAL NEW CONSTRUCTION! Welcome to 20 Knollwood Road, Muttontown in the Jericho School District. Experience the pinnacle of luxury living in this newly built estate, offering approximately 7,000 square feet of refined design and superior craftsmanship by a highly regarded builder. Every inch of this home reflects meticulous attention to detail, from the bespoke millwork and custom paneling to the soaring ceilings and elegant herringbone flooring. A striking custom iron entry door welcomes you into a grand foyer, setting the stage for the home’s sophisticated yet inviting ambiance. The chef’s kitchen is a showstopper, featuring dual oversized islands, premium Sub-Zero and Wolf appliances, and effortless flow into formal and casual living spaces. Entertain with ease in the formal dining room or at the beautifully appointed wet bar with wine refrigeration. Designed for seamless indoor-outdoor living, French doors open to an expansive porcelain patio and a true resort-style backyard. Enjoy a fully outfitted outdoor kitchen, heated gunite pool with spa, and lush surroundings perfect for entertaining or relaxing in privacy. This impressive residence includes 6 generously sized bedrooms, all with en-suite baths, and a total of 7.5 designer bathrooms. The primary suite offers a luxurious retreat with spa-like finishes. Additional highlights include radiant heated bathroom floors, whole-house generator, central vacuum, Pella windows, circular driveway, and a sprawling lower level complete with a full bath and direct backyard access. A rare offering combining scale, sophistication, and immediate occupancy in one of Long Island’s most desirable locations.

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Listing Snapshot
Price 
$5,899,999
Days On Site 
29 Days
Bedrooms 
6
Inside Area (SqFt) 
7,000 sqft
Total Baths 
8
Full Baths 
7
Partial Baths 
1
Lot Size 
2 Acres
Year Built 
2026
MLS® Number 
986988
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
4 weeks agoListing first seen on site
4 weeks agoListing updated with changes from the MLS®
General Features
Acres 
2
Cross Street 
Brookville Road
Garage 
Yes
Garage Spaces 
3
Parking 
DrivewayGarage
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
Sewer 
Cesspool
Style 
Colonial
Utilities 
See Remarks
Water Source 
Public
Interior Features
Appliances 
CooktopDishwasherGas CooktopGas OvenGas RangeRefrigeratorWine Refrigerator
Basement 
Level - LowerDescription - High Ceilings with Many Egress Windows and Door Leading to Backyard and 2nd Laundry Room
Cooling 
Central Air
Fireplace 
Yes
Fireplace Features 
Electric
Fireplaces 
1
Flooring 
Hardwood
Heating 
Forced AirPropaneRadiant Floor
Interior 
Cathedral Ceiling(s)Central VacuumCrown MoldingEntrance FoyerHigh CeilingsHis and Hers ClosetsIn-Law FloorplanKitchen IslandOpen FloorplanPantryWalk-In Closet(s)
Laundry Features 
Laundry Room
Spa 
Yes
Auxiliary Room 
Level - FirstDescription - Huge Double Entry Foyer with Radiant Heated Floors
Bathroom 1 
Level - FirstDescription - Powder Room
Bathroom 2 
Level - FirstDescription - Full Bathroom with Access to the Backyard
Bathroom 3 
Level - LowerDescription - Full Bathroom
Bedroom 1 
Level - FirstDescription - Large Bedroom Overlooking Backyard with En-Suite Bath
Bedroom 2 
Level - SecondDescription - Primary Suite with Private Balcony, 2 Closets and Designer Spa Bathroom
Bedroom 3 
Level - SecondDescription - Additional 4 Bedrooms with En-Suite Full Bathrooms
Dining Room 
Level - FirstDescription - Formal Dining Room with Wet Bar
Family Room 
Level - FirstDescription - French Doors Opening up to Porcelain Tiled Patio Perfect for Indoor/Outdoor Entertaining with Outdoor Kitchen
Kitchen 
Level - FirstDescription - Designer Kitchen, 2 Islands, Subzero and Wolf Appliances
Laundry 
Level - SecondDescription - Laundry Room
Living Room 
Level - FirstDescription - Formal Living Room with French Doors
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Exterior Features
Construction Details 
Brick
Lot Features 
Back YardCul-De-SacFront YardLandscapedLevelSprinklers In FrontSprinklers In Rear
Patio And Porch 
Patio
Pool Features 
FencedIn GroundPool CoverPool/Spa ComboPrivate
Private Pool 
Yes
Spa 
Yes
Community Features
School District 
Jericho
Schools
School District
Jericho
Elementary School
George A Jackson School
Middle School
Jericho Middle School
High School
Jericho Senior High School
Listing courtesy of LAFFEY REAL ESTATE jberookhim@laffeyRE.com


Based on information submitted to the MLS GRID as of 2026-06-13 11:38 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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