For Sale

20 Knollwood Road Brookville, NY 11545

$5,499,999

Listed May 14, 2026, 127 days ago

Listing courtesy of Janet Berookhim CBR, LAFFEY REAL ESTATE MLS #KEY986988

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  • 6Bedrooms
  • 7.5Bathrooms
  • 7,000Square feet
  • $786Per square foot
  • 2026Year built

About this home

EXCEPTIONAL NEW CONSTRUCTION! Luxury Living at it's finest! 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.

Description supplied by the listing broker.

Features

  • First Floor Bedroom
  • First Floor Full Bath
  • Cathedral Ceiling(s)
  • Central Vacuum
  • Chefs Kitchen
  • Crown Molding
  • ENERGY STAR Qualified Door(s)
  • Entrance Foyer
  • Formal Dining
  • High Ceilings
  • His and Hers Closets
  • In-Law Floorplan
  • Kitchen Island
  • Marble Counters

Property details

Interior

Attic
Full,Pull Stairs
Flooring
Hardwood
Levels
Tri-Level
Fireplaces
1
Appliances
Cooktop, Dishwasher, Gas Cooktop, Gas Oven, Gas Range, Refrigerator, Wine Refrigerator

Systems and utilities

Heating
Forced Air, Propane, Radiant Floor
Heating zones
3
Cooling
Central Air
Utilities
See Remarks
Water
Public

Exterior and lot

Construction
Brick
Architectural style
Colonial
Condition
New Construction
Parking
Driveway, Garage
Private pool
Yes
Pool
Fenced, In Ground, Pool Cover, Pool/Spa Combo
Spa
Yes
Patio and porch
Patio
Lot features
Back Yard, Cul-De-Sac, Front Yard, Landscaped, Level, Sprinklers In Front, Sprinklers In Rear

Tax and legal

Parcel number
2429-16-B-00-1589-0
Tax lot
1589
Tax block
B
Tax section
16
Listing agreement
Exclusive Right To Sell

Property details supplied by the listing broker through OneKey MLS, as of September 18, 2026. Fields not shown were not supplied and should not be read as absent from the property.

This listing

  1. September 3, 2026 Reduced to $5,499,999 from $5,688,000

Location

20 Knollwood Road, Brookville, NY 11545

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