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20 Knollwood Road
Brookville NY 11545 US

$5,899,999

Active Listing ID 986988
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6 bed
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8.00 Bath (7 Full , 1 Half)
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Lot: 2.00 Acres
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Single Family Residence

$5,899,999

Active Listing ID 986988
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20 Knollwood Road 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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Property Features

  • Facts
  • Lot Size: 2.00 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 7
  • 1/2 Bathrooms: 1
  • Cooling System: Central Air
  • Floor Covering: Hardwood
  • Heating Fuels: Propane (Heating), Radiant Floor, Forced Air, Radiant
  • Additional Features
  • Fireplace
  • Patio
  • Pool

School Information

  • School
  • George A Jackson School(Elementary)
  • Jericho Middle School(MiddleSchool)
  • Jericho Senior High School(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 5899999
  • unparsedaddress: 20 Knollwood Road
  • postalcity: Brookville
  • stateorprovince: NY
  • country: US
  • postalcode: 11545
  • bathroomsfull: 7
  • bathroomshalf: 1
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 2
  • lotsizeunits: Acres
  • lotsizearea: 2
  • livingarea: 7000
  • livingareaunits: Square Feet
  • latitude: 40.81307
  • longitude: -73.540676
  • listagentfullname: Janet Berookhim CBR
  • listagentemail: jberookhim@laffeyre.com
  • listagentkey: 3yd-MLSLINY-18566
  • listagentmlsid: 18566
  • listagentpreferredphone: 5162637072
  • listagentofficephone: 5162637072
  • listofficekey: 3yd-MLSLINY-LRE09
  • listofficemlsid: LRE09
  • disclaimer: Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
  • sourcesystemid: MLSLINY
  • yearbuilt: 2026
  • listingcontractdate: 2026-05-14
  • listagentfax: 5166255415
  • listagenturl: http://www.laffey.com
  • countyorparish: Nassau County
  • parcelnumber: 2429-16-B-00-1589-0
  • elementaryschool: George A Jackson School
  • highschool: Jericho Senior High School
  • elementaryschooldistrict: Jericho
  • middleorjuniorschooldistrict: Jericho
  • highschooldistrict: Jericho
  • appliances: Cooktop, Dishwasher, Gas Cooktop, Gas Oven, Gas Range, Refrigerator, Wine Refrigerator
  • cooling: Central Air
  • constructionmaterials: Brick
  • flooring: Hardwood
  • heating: Propane (Heating), Radiant Floor, Forced Air, Radiant
  • fireplaceyn: True
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Garage, Driveway
  • waterfrontyn: False
  • franchiseaffiliation: None
  • interiorfeatures: 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)
  • architecturalstyle: Colonial
  • rooms: Bathroom 2, Laundry Room, Bedroom 6, Basement, Bedroom 3, Bathroom 7, Bathroom 8, Bathroom 5, Bathroom 6, Bathroom 4, Bedroom 2, Bedroom 4, Bedroom 5, Dining Room, Bathroom 1, Bathroom 3, Bedroom 1, Family Room, Laundry Room
  • patioandporchfeatures: Patio
  • dock: False
  • poolprivateyn: True
  • spayn: True
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • location: -73.54067, 40.81307
  • openhouse: { "AppointmentRequiredYN": false, "ListingKey": "3yd-MLSLINY-986988", "OpenHouseEndTime": "2026-05-17 15:00:00", "OpenHouseId": "4276382", "OpenHouseRemarks": null, "OpenHouseStartTime": "2026-05-17 13:30:00", "OpenHouseType": null, "VirtualOpenHouseURL": null }, { "AppointmentRequiredYN": false, "ListingKey": "3yd-MLSLINY-986988", "OpenHouseEndTime": "2026-05-17 15:00:00", "OpenHouseId": "4276386", "OpenHouseRemarks": null, "OpenHouseStartTime": "2026-05-17 13:30:00", "OpenHouseType": null, "VirtualOpenHouseURL": null }
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Laffey Real Estate", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"jberookhim@laffeyre.com", "ListBrokerageCity":"Greenvale", "ListBrokerageCountry":"US", "ListBrokerageEmail":"info@laffeyre.com", "ListBrokerageLogoUrl":"http://brokerlogos.listhub.net/MLSLINY/03ac7af18dd511df873000219b9aa4d8/20161004202112835.png", "ListBrokerageName":"Laffey Real Estate", "ListBrokeragePhone":"(888) 289-6902", "ListBrokeragePostalCode":"11548", "ListBrokerageStateOrProvince":null, "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"55 Northern Blvd., ", "ListBrokerageWebsiteUrl":"http://www.laffey.com", "ListOfficeAddress1":"55 Northern Blvd ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"LRE09", "ListOfficeCity":"Greenvale", "ListOfficeCountry":"US", "ListOfficeEmail":"greenvale1@laffeyre.com", "ListOfficePostalCode":"11548", "ListOfficeStateOrProvince":"NY", "ListPriceCurrencyType":"USD", "ListingTitle":"SINGLE_FAMILY - Colonial - Brookville, NY", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/20-Knollwood-Rd_Glen-Head_NY_11545_M31622-83280?f=listhub&s=MLSLINY&m=986988&c=rexren", "MLSModificationTimestamp":"2026-05-15 09:01:42", "Neighborhoods":[], "PostalCode":null, "RoomCount":10, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":null, "TaxDescription":null, "TaxYear":"2026"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 5/15/2026 9:13:59 AM GMT
Source Updated Date: 5/17/2026 6:45:57 AM GMT

Courtesy of: Janet Berookhim CBR, LAFFEY REAL ESTATE, jberookhim@laffeyre.com

Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.