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3 Seaforth Lane
Lloyd Harbor NY 11743 US

$4,290,000

Active Listing ID 981869
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5 bed
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5.00 Bath (4 Full , 1 Half)
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Lot: 2.67 Acres
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Single Family Residence

$4,290,000

Active Listing ID 981869
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3 Seaforth Lane BRAND NEW CONSTRUCTION ~ TO BE BUILT. This is an opportunity to customize your exclusive Luxury Residence. This home has an expected completion of early 2027. Local prominent builder, will finish to perfection on this incredible flat 2.67 acre of beautiful property. Thoughtful floorplan incorporated, with proposed residence, offering 5 Bedrooms, Kitchen with high end appliances, quartz countertops, open to Great Room, Office/Bedroom Ensuite on first, Dining Room and Mud Room. Radiant heat in Primary Bath and Mud Room. In addition, this new residence offers; 2 Laundry Rooms one on 1st and 2nd floor, Bonus Room over Garage. The Great Room encompasses a wall of glass overlooking the stunning property, including 4 French doors with additional windows, offering an abundance of natural light. The French doors open to an outside patio with covered porch for multi seasonal enjoyment. Ceilings Height 10 Ft. on First Floor, 9 Foot and Cathedral on Second Floor, 9 Foot Ceiling in Basement. Stunning oversized custom front window with bronze finish for the ultimate curb appeal. 3 Car Garage, side loaded, situated on the left side of the home. Marvin windows, Maibec siding, Azek trim, 5" Oak floors, Rheem CAC, 300 amp underground electrical service, Navien boiler hot water system, Central vac, Thermadore appliance package, LG washer dryer, are some of the many amenities offered. This high-end new construction offers fresh on point, sophisticated design. Mature plantings provide a serene setting. Spectacular setting close to Fort Hill Beach, Town, shops, restaurants, train, CSH library and all the local Village has to offer. Assoc. fee of $2, 250. Private Fort Hill and Lloyd Harbor Beach with mooring rights, cabana, tennis and summer camp (fee). (Renderings for marketing purposes only) CSHSD #2

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Property Features

  • Facts
  • Lot Size: 2.67 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 4
  • 1/2 Bathrooms: 1
  • Cooling System: Central Air
  • Floor Covering: Wood
  • Heating Fuels: Radiant Floor, Radiant
  • Additional Features
  • Basement
  • Fireplace
  • Patio

School Information

  • School
  • Lloyd Harbor School(Elementary)
  • Cold Spring Harbor High School(MiddleSchool)
  • Cold Spring Harbor High School(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 4290000
  • unparsedaddress: 3 Seaforth Lane
  • postalcity: Lloyd Harbor
  • stateorprovince: NY
  • country: US
  • postalcode: 11743
  • bathroomsfull: 4
  • bathroomshalf: 1
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 2.67
  • lotsizeunits: Acres
  • lotsizearea: 2.67
  • livingarea: 5200
  • livingareaunits: Square Feet
  • latitude: 40.920192
  • longitude: -73.48742
  • listagentfullname: Janine Gleusner
  • listagentemail: jgleusner@signaturepremier.com
  • listagentkey: 3yd-MLSLINY-127703
  • listagentmlsid: 127703
  • listagentpreferredphone: 5166374842
  • listofficekey: 3yd-MLSLINY-SPH02
  • listofficemlsid: SPH02
  • 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: 2026-05-26
  • listagentfax: 6316924801
  • listagenturl: http://www.signaturepremier.com
  • countyorparish: Suffolk County
  • parcelnumber: 0403-006-00-02-00-025-001
  • elementaryschool: Lloyd Harbor School
  • highschool: Cold Spring Harbor High School
  • elementaryschooldistrict: Cold Spring Harbor
  • middleorjuniorschooldistrict: Cold Spring Harbor
  • highschooldistrict: Cold Spring Harbor
  • appliances: Dishwasher, Dryer, ENERGY STAR Qualified Appliances, Freezer, Gas Cooktop, Microwave, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Wine Refrigerator
  • cooling: Central Air
  • constructionmaterials: Frame
  • flooring: Wood
  • heating: Radiant Floor, Radiant
  • fireplaceyn: True
  • transactiontype: ForSale
  • storiestotal: 2
  • parkingtotal: 0
  • parkingfeatures: Driveway
  • waterfrontyn: False
  • franchiseaffiliation: None
  • interiorfeatures: First Floor Bedroom, First Floor Full Bath, Cathedral Ceiling(s), Central Vacuum, Crown Molding, Double Vanity, Eat-in Kitchen, ENERGY STAR Qualified Door(s), Entrance Foyer, Formal Dining, High Ceilings, Kitchen Island, Open Floorplan, Pantry, Primary Bathroom, Quartz/Quartzite Counters, Recessed Lighting, Sound System, Storage, Walk-In Closet(s), Washer/Dryer Hookup, Wet Bar, Wired for Sound
  • waterfrontfeatures: Beach Access
  • windowfeatures: ENERGY STAR Qualified WIndows
  • architecturalstyle: Other
  • rooms: Bathroom 5, Basement, Bathroom 2, Bedroom 3, Bedroom 1, Dining Room, Bathroom 1, Bathroom 4, Bedroom 5, Bedroom 4, Bathroom 3, Bedroom 2
  • otherstructures: Storage
  • patioandporchfeatures: Patio, Porch
  • basement: Full
  • dock: False
  • poolprivateyn: False
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • location: -73.48742, 40.920193
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Signature Premier Properties", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"jgleusner@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":"157 Main St ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"SPH02", "ListOfficeCity":"Cold Spring Harbor", "ListOfficeCountry":"US", "ListOfficeEmail":"jkata@signaturepremier.com", "ListOfficePostalCode":"11724", "ListOfficeStateOrProvince":"NY", "ListPriceCurrencyType":"USD", "ListingTitle":"SINGLE_FAMILY - Other - Lloyd Harbor, NY", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/3-Seaforth-Ln_Lloyd-Harbor_NY_11743_M32074-72712?f=listhub&s=MLSLINY&m=981869&c=rexren", "MLSModificationTimestamp":"2026-07-02 16:01:36", "Neighborhoods":[], "PostalCode":null, "RoomCount":10, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":7267, "TaxDescription":null, "TaxYear":"2026"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 1/1/2020 12:00:00 AM GMT
Source Updated Date: 8/5/2026 12:36:28 PM GMT

Courtesy of: Janine Gleusner, Signature Premier Properties, jgleusner@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.