Open House 1/4 12pm - 2pm
20 Knollwood Road
Muttontown, NY, 11545 $ 5,995,999
Bedrooms6 Baths7.1 Sq 7,314 Monthly Estimate*
$ 37,407
for $5,995,999 with 6 bedrooms and 7 full baths, 1 half bath. This 7,314 square foot home was built in 2025 on a lot size of 2.
Muttontown Brand New Brick Center Hall Colonial | Set on over two private acres on a quiet cul-de-sac, 20 Knollwood Road is an exceptional new construction estate that blends timeless architecture with elevated, modern finishes. With six en-suite bedrooms, soaring 10-foot ceilings on every level, and thoughtfully designed indoor and outdoor spaces, this home is perfectly suited for refined living and grand entertaining. The main level showcases radiant porcelain tile, coffered ceilings, and custom millwork throughout. The kitchen is a true showpiece, featuring two oversized islands with seating and storage, marble countertops, paneled Sub-Zero appliances, a Wolf range and ovens, farmhouse sink, pot filler and more. A formal dining room with wet bar and herringbone floors complements the space, while a powder room finished in striking black marble adds a dramatic touch. The expansive living and entertaining areas flow seamlessly to the outdoors through French doors, opening to a porcelain-tiled patio and a heated Gunite saltwater pool with automatic cover, integrated spa, and lush surroundings. The home includes a full house generator powered by two 1,000-gallon propane tanks, three-zone HVAC, a space for a future elevator, and smart home wiring for speakers, alarm, and surveillance. Upstairs, the primary suite offers a private balcony, dual walk-in closets, and a spa-quality bath with double vanities and Toto fixtures. A junior suite with a Juliet balcony offers additional luxury, while a second-floor laundry room and central vacuum with hidden hose system provide modern convenience. All bedrooms feature en-suite baths, with elegant grey, white, and black marble finishes carried throughout. Additional highlights include a three-car garage with room for car lifts, a mudroom entry, baseboard outlets, flush floor vents, and a 300-pound chandelier motor lift. The home is clad in limestone stucco and brick, with black iron doors and Pella windows offering a sleek, modern exterior. The unfinished lower level leaves over 3,000 sq.ft. to the imagination - with full bathroom and second laundry room to cater to the pool. A rare offering in Muttontown—luxury, privacy, and craftsmanship converge at 20 Knollwood Road.
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Open House
1/4/2026 12:00 PM - 2:00 PM
20 Knollwood Road Muttontown, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesInteriorInterior Amenities First Floor Bedroom First Floor Full Bath Breakfast Bar Built-in Features Cathedral Ceiling(s) Central Vacuum Double Vanity Eat-in Kitchen Entrance Foyer Formal Dining High Ceilings His and Hers Clos
Basement See Remarks Unfinished Walk-Out Access
Total Fireplaces 1
Fireplace Features Electric Family Room
Basement Features See Remarks Unfinished Walk-Out Access
Basement (Y/N) Y
Fireplace Y/N Y
Half Baths 1
Total Bedrooms 6
Total Baths 8
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GeneralSewer Cesspool
Heating Propane Radiant Floor
Cooling Central Air
Utilities Electricity Connected Propane See Remarks Water Connected
Appliances Freezer Gas Oven Gas Range Microwave Refrigerator Stainless Steel Appliance(s) Wine Refrigerator
Garage Spaces 3
Architectural Style Colonial
Pool Features In Ground Outdoor Pool Pool Cover Pool/Spa Combo Salt Water
Construction Materials Brick
Year Built 2025
Property Subtype Single Family Residence
Tax Year 2023
Parcel Number 2429-16-B-00-1589-0
County Nassau County
Property Type Residential
HOA N
Garage Y/N Y
Total Rooms 10
Full Baths 7
Directions North on Jericho Oyster Bay Road (106) left on Brookville Road right on Knollwood Road #20
High School Jericho Senior High School
City Oyster Bay
Senior Community Y/N N
High School District Jericho
Carport Y/N N
Elementary School George A Jackson School
Property Attached Y/N N
Tax Annual Amount 25640.99
Showing Instructions Call/Text Listing Agent: Joe Scavo 516-359-2672 24 hour noticed required submit proof of funds/pre-approval with appointment request
Middle/Junior High School Jericho Middle School
Property Condition New Construction
Virtual Tour https://sites.allmediatours.com/20knollwoodrd/?mls
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Jericho
Elementary School District Jericho
Tax Assessed Value 1204
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ExteriorExterior Amenities Balcony Juliet Balcony
Parking Features Attached Garage Attached Garage
Water Source Public
Spa Y
Waterfront Y/N N
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* Excluded FeaturesList ByJoseph A. ScavoListing Agent
Douglas Elliman Real EstateBroker
Affordability Calculator
- Monthly Principal & Interest
- $37,407
- Monthly Property Taxes
- $2,137
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Muttontown, NY
Average List Price $3,614,778
Percent of Sale Price 40%
About Muttontown, NY 3,466 Population
0% Since 2002
$ 236,516 Median Income
38.24 Median Age
39% Households with Children
Trends Information provided by ATTOM Data Solutions.
4100486 Elementary School
4101292 Middle School
Jericho Senior High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 10/15/2025 | $5,995,999 | -3.27% | Price Down |
| 9/17/2025 | $6,199,000 | -1.59% | Price Down |
| 9/2/2025 | $6,299,000 | -3.08% | Price Down |
| 4/22/2025 | $6,499,000 | | Listed Price |