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20 Knollwood Road

20 Knollwood Road, Oyster Bay, NY, 11545

$5,899,999

active

Bedrooms

Bathrooms

Sq Ft

7,000

Lot Size

87,120 sqft

Year Built

2026

Garage

3 car

Type

Single Family

Monthly Cost

Estimate. Actual payment depends on credit, lender, taxes, and insurance.

$31,527/month estimated

Principal & interest: $31,402
Home insurance (est.): $125

Down payment %Interest rate %Term (years)

Down payment: $1,180,000 · Loan amount: $4,719,999

Description

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.

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
✓ Open Floorplan
✓ Pantry
✓ Walk-In Closet(s)

Appliances

✓ Cooktop
✓ Dishwasher
✓ Gas Cooktop
✓ Gas Oven
✓ Gas Range
✓ Refrigerator
✓ Wine Refrigerator

Property Details

Cooling: Central Air
Heating: Forced Air, Propane, Radiant Floor
Basement: Full

Schools

Elementary

George A Jackson School

Jericho

Middle

Jericho Middle School

Jericho

High

Jericho Senior High School

Jericho

Location

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Map of 20 Knollwood Road, Oyster Bay, NY, 11545

Listed by Janet Berookhim CBR, LAFFEY REAL ESTATE

MLS# KEY986988516-625-0944

Listings courtesy of OneKey® MLS as distributed by MLS GRID

Based on information submitted to the MLS GRID as of Jun 19, 2026, 12:46 PM UTC (date and time MLS GRID Data was obtained). 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.

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