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21 Seafield Lane
Westhampton Beach NY 11978 US

$4,600,000

Active Listing ID 1044207
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7 bed
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6,941 square feet
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7.00 Bath (5 Full , 2 Half)
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Lot: 1.02 Acres
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Single Family Residence

$4,600,000

Active Listing ID 1044207
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21 Seafield Lane Westhampton Beach Estate Section PHOTOS COMING SOON. Located on one of the village's most prestigious lanes, in the heart of Westhampton Beach's estate section, this gracious home is just moments from Main Street. Built in 1930 and expanded in 1994, the seven-bedroom residence pairs beautiful original architectural details with a contemporary sense of space. A welcoming foyer opens to an expansive living room with beamed ceilings and an original marble fireplace, flowing into a distinctive octagonal sunroom and wraparound three-season porch. The main level also features a spacious dining room with bay windows and marble fireplace, connecting to the eat-in kitchen. Upstairs are seven bedrooms, most with en-suite baths, including a separate primary suite with an adjoining office and private staircase. Outside, a large deck provides plenty of room for dining and relaxing, while the gunite pool and surrounding deck create an inviting setting for summer days. A detached two-car garage, originally the property's carriage house, adds to the home's character. With its exceptional location, generous proportions, and original details, this is a rare opportunity to make a classic Westhampton Beach residence your own.

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Property Features

  • Facts
  • Lot Size: 1.02 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 5
  • 1/2 Bathrooms: 2
  • Cooling System: Central Air
  • Heating Fuels: Oil
  • Additional Features
  • Basement
  • Fireplace
  • Pool

School Information

  • School
  • Westhampton Beach Elem School(Elementary)
  • Westhampton Middle School(MiddleSchool)
  • Westhampton Beach Senior High Sch(HighSchool)

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 4600000
  • unparsedaddress: 21 Seafield Lane
  • postalcity: Westhampton Beach
  • stateorprovince: NY
  • country: US
  • postalcode: 11978
  • bathroomsfull: 5
  • bathroomshalf: 2
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 1.02
  • lotsizeunits: Acres
  • lotsizearea: 1.02
  • livingarea: 6941
  • livingareaunits: Square Feet
  • latitude: 40.809711
  • longitude: -72.636827
  • listagentfullname: Amanda M. Murray
  • listagentemail: amanda.murray@corcoran.com
  • listagentkey: 3yd-MLSLINY-192818
  • listagentmlsid: 192818
  • listagentpreferredphone: 9173280848
  • listagentofficephone: 9173280848
  • listofficekey: 3yd-MLSLINY-JCHA01
  • listofficemlsid: JCHA01
  • 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: 1930
  • listingcontractdate: 2026-08-28
  • listagentfax: 6312886999
  • countyorparish: Suffolk County
  • parcelnumber: 0905-014-00-01-00-009-000
  • elementaryschool: Westhampton Beach Elem School
  • highschool: Westhampton Beach Senior High Sch
  • elementaryschooldistrict: Westhampton Beach
  • middleorjuniorschooldistrict: Westhampton Beach
  • highschooldistrict: Westhampton Beach
  • appliances: Dishwasher, Dryer, Oven, Refrigerator, Washer
  • cooling: Central Air
  • constructionmaterials: Frame
  • heating: Oil
  • fireplaceyn: True
  • transactiontype: ForSale
  • storiestotal: 0
  • parkingtotal: 0
  • parkingfeatures: Garage
  • waterfrontyn: False
  • franchiseaffiliation: None
  • interiorfeatures: Beamed Ceilings, Eat-in Kitchen, Entrance Foyer, Formal Dining, In-Law Floorplan, Original Details
  • architecturalstyle: Colonial
  • rooms: Bedroom 3, Bedroom 5, Bathroom 4, Bedroom 1, Bathroom 3, Bathroom 6, Bathroom 1, Bedroom 4, Bedroom 7, Family Room, Dining Room, Bathroom 2, Bathroom 7, Bedroom 6, Bedroom 2, Bathroom 5, Basement
  • basement: Partial
  • dock: False
  • poolprivateyn: True
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: False
  • internetconsumercommentyn: False
  • location: -72.636826, 40.80971
  • openhouse: { "AppointmentRequiredYN": false, "ListingKey": "3yd-MLSLINY-1044207", "OpenHouseEndTime": "2026-09-03 14:00:00", "OpenHouseId": "8907442", "OpenHouseRemarks": null, "OpenHouseStartTime": "2026-09-03 12:00:00", "OpenHouseType": null, "VirtualOpenHouseURL": null }
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"Corcoran", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"amanda.murray@corcoran.com", "ListBrokerageCity":"Westhampton Beach", "ListBrokerageCountry":"US", "ListBrokerageEmail":"jocelyn.haas@corcoran.com", "ListBrokerageLogoUrl":null, "ListBrokerageName":"Corcoran", "ListBrokeragePhone":"(631) 288-6900", "ListBrokeragePostalCode":"11978", "ListBrokerageStateOrProvince":null, "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"92 Main Street", "ListBrokerageWebsiteUrl":null, "ListOfficeAddress1":"92 Main St ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"JCHA01", "ListOfficeCity":"Westhampton Beach", "ListOfficeCountry":"US", "ListOfficeEmail":"jocelyn.haas@corcoran.com", "ListOfficePostalCode":"11978", "ListOfficeStateOrProvince":"NY", "ListPriceCurrencyType":"USD", "ListingTitle":"Residential, Westhampton Beach, NY", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/21-Seafield-Ln_Westhampton-Beach_NY_11978_M34883-75654?f=listhub&s=MLSLINY&m=1044207&c=rexren", "MLSModificationTimestamp":"2026-09-03 18:09:36", "Neighborhoods":[], "PostalCode":null, "RoomCount":16, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":37488, "TaxDescription":null, "TaxYear":"2026"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 9/3/2026 7:09:15 PM GMT
Source Updated Date: 9/5/2026 6:54:38 PM GMT

Courtesy of: Amanda M. Murray, Corcoran, amanda.murray@corcoran.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.