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31 Underhill Avenue
Syosset NY 11791 US

$2,090,000

Active Listing ID 1025506
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5 bed
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4.00 Bath (4 Full)
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Lot: 0.16 Acres
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Single Family Residence

$2,090,000

Active Listing ID 1025506
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31 Underhill Avenue New luxury construction in Syosset. Experience exceptional craftsmanship and modern luxury in this stunning new construction home, thoughtfully designed with today's lifestyle in mind. Offering five spacious bedrooms and four full bathrooms. This home seamlessly blends elegant finishes with functional living space. The main level features a desirable first floor bedroom and full bath, ideal for guests, extended family, or private home office. The heart of the home is a chef inspired gourmet kitchen beautifully appointed with top-of-the-line appliances, custom cabinetry, designer lighting and an open layout perfect for entertaining. The sun filled living and dining area flow effortlessly together with convenient access to the attached garage Upstairs retreat to the luxurious primary suite featuring a spacious walk-in closet and a spa like bath, complete with a soaking tub, oversized walk-in shower and premium finishes. A junior en-suite offers its own private full bath with a walk-in shower while two additional generously sized bedrooms share a beautiful appointed full bath. A conveniently located second floor laundry room completes the upper level. Every detail has been carefully selected from the designer lighting and elegant fixtures to the high-quality craftsmanship found throughout. Simply unpack, add your personal style and enjoy effortless luxury. Perfectly situated within the Syosset school district this exceptional home is just minutes from major highways, the Syosset library, parks, shopping, dining and everything the community has to offer. A rare opportunity to own a brand new luxury home in one of Long Island's most sought after neighborhoods. This is truly one you don't want to miss!

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Property Features

  • Facts
  • Lot Size: 0.16 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 4
  • Cooling System: Central Air
  • Floor Covering: Tile, Hardwood
  • Heating Fuels: Natural Gas
  • Additional Features
  • Basement
  • Patio

School Information

  • School
  • Willits Elementary School(Elementary)
  • H B Thompson Middle School(MiddleSchool)
  • Syosset Senior High School(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 2090000
  • unparsedaddress: 31 Underhill Avenue
  • postalcity: Syosset
  • stateorprovince: NY
  • country: US
  • postalcode: 11791
  • bathroomsfull: 4
  • bathroomshalf: 0
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 0.1561
  • lotsizeunits: Acres
  • lotsizearea: 0.1561
  • livingarea: 2700
  • livingareaunits: Square Feet
  • latitude: 40.806
  • longitude: -73.500981
  • listagentfullname: Debra McSheffrey Kiehn
  • listagentemail: dmcsheffrey@signaturepremier.com
  • listagentkey: 3yd-MLSLINY-127863
  • listagentmlsid: 127863
  • listagentpreferredphone: 5166476749
  • listagentofficephone: 5166476749
  • listofficekey: 3yd-MLSLINY-SPH06
  • listofficemlsid: SPH06
  • 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: 2026-07-16
  • listagentfax: 5169211438
  • listagenturl: http://www.signaturepremier.com
  • countyorparish: Nassau County
  • parcelnumber: 2489-15-081-00-0003-0
  • elementaryschool: Willits Elementary School
  • highschool: Syosset Senior High School
  • elementaryschooldistrict: Syosset
  • middleorjuniorschooldistrict: Syosset
  • highschooldistrict: Syosset
  • appliances: Dishwasher, Dryer, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer
  • cooling: Central Air
  • constructionmaterials: Frame
  • flooring: Tile, Hardwood
  • heating: Natural Gas
  • fireplaceyn: False
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Driveway
  • waterfrontyn: False
  • franchiseaffiliation: None
  • interiorfeatures: Chefs Kitchen, Crown Molding, Double Vanity, Granite Counters, Kitchen Island, Open Floorplan, Primary Bathroom, Recessed Lighting
  • architecturalstyle: Colonial
  • rooms: Bathroom 3, Bathroom 1, Bedroom 2, Bathroom 2, Bedroom 5, Bedroom 1, Bathroom 4, Basement, Bedroom 3, Bedroom 4
  • patioandporchfeatures: Patio
  • basement: Full
  • dock: False
  • poolprivateyn: False
  • spayn: False
  • fencing: Fenced
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • location: -73.500984, 40.806
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Signature Premier Properties", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"dmcsheffrey@signaturepremier.com", "ListBrokerageCity":"Huntington", "ListBrokerageCountry":"US", "ListBrokerageEmail":"info@signaturepremier.com", "ListBrokerageLogoUrl":"http://brokerlogos.listhub.net/MLSLINY/c5ababc320d9ff0f0120de6bf56100c3/20140107215217613.png", "ListBrokerageName":"Signature Premier Properties", "ListBrokeragePhone":"(631) 673-3700", "ListBrokeragePostalCode":"11743", "ListBrokerageStateOrProvince":null, "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"157 East Main Street", "ListBrokerageWebsiteUrl":"http://www.signaturepremier.com", "ListOfficeAddress1":"33 Jackson Ave ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"SPH06", "ListOfficeCity":"Syosset", "ListOfficeCountry":"US", "ListOfficeEmail":"mdenker@signaturepremier.com", "ListOfficePostalCode":"11791", "ListOfficeStateOrProvince":"NY", "ListPriceCurrencyType":"USD", "ListingTitle":"SINGLE_FAMILY - Colonial - Syosset, NY", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/31-Underhill-Ave_Syosset_NY_11791_M45035-33189?f=listhub&s=MLSLINY&m=1025506&c=rexren", "MLSModificationTimestamp":"2026-07-19 17:39:42", "Neighborhoods":[], "PostalCode":null, "RoomCount":9, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":null, "TaxDescription":null, "TaxYear":"2026"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 7/19/2026 5:44:37 PM GMT
Source Updated Date: 7/24/2026 12:47:26 AM GMT

Courtesy of: Debra McSheffrey Kiehn, Signature Premier Properties, dmcsheffrey@signaturepremier.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.