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3645 3651 Soundview Avenue Peconic NY 11958US7 Bed, 5.00 Bath (4 Full Bath , 1 Half Bath), 4,628 square feet1049858
3645 3651 Soundview Avenue PeconicNY11958
6200000.0000 1/1/1900 12:00:00 AM
Compass Greater NY LLC
1 /

Courtesy of: Nicholas S. Liappas, Compass Greater NY LLC, nicholas.liappas@compass.com

3645 3651 Soundview Avenue
Peconic NY 11958 US

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1 /

Courtesy of: Nicholas S. Liappas, Compass Greater NY LLC, nicholas.liappas@compass.com

Get more info about this property

3645 3651 Soundview Avenue
Peconic NY 11958 US

$6,200,000

Active Listing ID 1049858
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7 bed
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4,628 square feet
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5.00 Bath (4 Full , 1 Half)
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Lot: 3.24 Acres
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Single Family Residence

$6,200,000

Active Listing ID 1049858
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3645 3651 Soundview Avenue Rare North Fork Beachfront estate, shy 3.25 acre compound! The main house features over 3, 000 sq. ft. of living space and the beach house offers approximately 1, 600 sq. ft. A powder white sandy path leads to a gorgeous private beach with 116+ ft. of waterfront. Enjoy panoramic water views of the sparkling Long Island Sound and enchanting sunsets with this incredible property that presents a multitude of opportunities for its next owner. Listed as a compound but also separately: see 3645 Soundview Ave - the main house (MLS #1007876) and 3651 Soundview Ave - the beach house (MLS #1009245). Please note that this compound listing reflects 3645 Soundview Avenue in fields where only one property's information can be displayed. Please note that combined information of both properties is also displayed where permissible.

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Property Features

  • Facts
  • Lot Size: 3.24 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 4
  • 1/2 Bathrooms: 1
  • Cooling System: Ductless, Central Air, Multi Units
  • Floor Covering: Tile, Hardwood
  • Heating Fuels: Heat Pump (Heating), Oil, Electric (Heating)
  • Additional Features
  • Basement
  • Fireplace
  • Waterfront

School Information

  • School
  • Mattituck-Cutchogue Elementary Sch(Elementary)
  • Mattituck Junior-Senior High School(MiddleSchool)
  • Mattituck Junior-Senior High School(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 6200000
  • unparsedaddress: 3645 3651 Soundview Avenue
  • postalcity: Peconic
  • stateorprovince: NY
  • country: US
  • postalcode: 11958
  • bathroomsfull: 4
  • bathroomshalf: 1
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 3.24
  • lotsizeunits: Acres
  • lotsizearea: 3.24
  • livingarea: 4628
  • livingareaunits: Square Feet
  • latitude: 41.05896
  • longitude: -72.464859
  • listagentfullname: Nicholas S. Liappas
  • listagentemail: nicholas.liappas@compass.com
  • listagentkey: 3yd-MLSLINY-147180
  • listagentmlsid: 147180
  • listagentpreferredphone: 5162147761
  • listagentofficephone: 5162147761
  • listofficekey: 3yd-MLSLINY-CMPA05
  • listofficemlsid: CMPA05
  • 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: 1986
  • listingcontractdate: 2026-09-19
  • listagenturl: https://www.compass.com/
  • countyorparish: Suffolk County
  • elementaryschool: Mattituck-Cutchogue Elementary Sch
  • highschool: Mattituck Junior-Senior High School
  • elementaryschooldistrict: Mattituck-Cutchogue
  • middleorjuniorschooldistrict: Mattituck-Cutchogue
  • highschooldistrict: Mattituck-Cutchogue
  • appliances: Dishwasher, Dryer, Freezer, Range, Refrigerator, Washer
  • cooling: Ductless, Central Air, Multi Units
  • constructionmaterials: Frame, Stucco
  • flooring: Tile, Hardwood
  • heating: Heat Pump (Heating), Oil, Electric (Heating)
  • fireplaceyn: True
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Driveway
  • view: Water
  • waterfrontyn: True
  • franchiseaffiliation: None
  • interiorfeatures: First Floor Bedroom
  • waterfrontfeatures: Waterfront, Beach Front, Beach Access
  • architecturalstyle: Colonial
  • rooms: Bedroom 1, Bedroom 4, Bedroom 6, Bathroom 2, Bathroom 5, Basement, Bathroom 3, Bathroom 1, Bathroom 4, Bedroom 2, Bedroom 3, Bedroom 7, Bedroom 5
  • basement: Full
  • dock: False
  • poolprivateyn: False
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • location: -72.46486, 41.05896
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Compass Greater NY LLC", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"nicholas.liappas@compass.com", "ListBrokerageCity":"New York", "ListBrokerageCountry":"US", "ListBrokerageEmail":"Support@Compass.com", "ListBrokerageLogoUrl":null, "ListBrokerageName":"Compass Greater NY LLC", "ListBrokeragePhone":"(212) 913-9058", "ListBrokeragePostalCode":"1001", "ListBrokerageStateOrProvince":null, "ListBrokerageUnitNumber":"Fl 9", "ListBrokerageUnparsedAddress":"90 5th Ave, NY", "ListBrokerageWebsiteUrl":"https://www.compass.com/", "ListOfficeAddress1":"1468 Northern Blvd ", "ListOfficeAddress2":"Fl 9", "ListOfficeBrokerMlsId":"CMPA05", "ListOfficeCity":"Manhasset", "ListOfficeCountry":"US", "ListOfficeEmail":"jill.mallino@compass.com", "ListOfficePostalCode":"11030", "ListOfficeStateOrProvince":"NY", "ListPriceCurrencyType":"USD", "ListingTitle":"Residential, Peconic, NY", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/3645_Peconic_NY_11958_M96963-21777?f=listhub&s=MLSLINY&m=1049858&c=rexren", "MLSModificationTimestamp":"2026-09-25 09:01:40", "Neighborhoods":[], "PostalCode":null, "RoomCount":14, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":29067, "TaxDescription":null, "TaxYear":"2026"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 9/25/2026 9:14:21 AM GMT
Source Updated Date: 9/25/2026 12:54:57 PM GMT

Courtesy of: Nicholas S. Liappas, Compass Greater NY LLC, nicholas.liappas@compass.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.

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