21 Seafield Lane Westhampton Beach, NY $ 4,600,000
21 Seafield Lane
$ 4,600,000
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21 Seafield Lane

Westhampton Beach, NY, 11978
$ 4,600,000
Bedrooms7 Baths5.2 Sq 6,941

Monthly Estimate*

$ 29,045

21 Seafield Lane, Westhampton Beach, NY 11978 - Image 1
21 Seafield Lane, Westhampton Beach, NY 11978 - Image 2
21 Seafield Lane, Westhampton Beach, NY 11978 - Image 3
21 Seafield Lane, Westhampton Beach, NY 11978 - Image 4
21 Seafield Lane, Westhampton Beach, NY 11978 - Image 5

Single Family Home for sale in Westhampton Beach, NY

for $4,600,000 with 7 bedrooms and 5 full baths, 2 half baths. This 6,941 square foot home was built in 1930 on a lot size of 1.02.

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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Single Family Active

Price

$ 4,600,000

Bedrooms

7

Full Bath

5

Half Bath

2

Property Type

Single Family

Taxes

$ 37,488

Style

Colonial

Lot Size

1.02

Year Built

1930

Town/City

Westhampton Beach

County/Region

Suffolk

MLS | Web ID

1044207

Features
Interior
Interior Amenities Beamed Ceilings Eat-in Kitchen Entrance Foyer Formal Dining In-Law Floorplan Original Details
Basement Partial
Basement Features Partial
Basement (Y/N) Y
Fireplace Y/N Y
Half Baths 2
Total Bedrooms 7
Total Baths 7
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General
Sewer Cesspool
Heating Oil
Cooling Central Air
Utilities Electricity Connected
Appliances Dishwasher Dryer Oven Refrigerator Washer
Garage Spaces 3
Architectural Style Colonial
Construction Materials Frame
Year Built 1930
Property Subtype Single Family Residence
Tax Year 2026
Parcel Number 0905-014-00-01-00-009-000
County Suffolk County
Property Type Residential
HOA N
Facing Direction East
Garage Y/N Y
Total Rooms 16
Full Baths 5
High School Westhampton Beach Senior High Sch
City Southampton
Senior Community Y/N N
High School District Westhampton Beach
Carport Y/N N
Elementary School Westhampton Beach Elem School
Property Attached Y/N N
Tax Annual Amount 37488
Middle/Junior High School Westhampton Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Westhampton Beach
Elementary School District Westhampton Beach
Tax Assessed Value 3186900
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Exterior
Parking Features Detached Garage Detached Garage
Water Source Public
Building Area Total 6941
Waterfront Y/N N
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Internal Only
Street Number 1 21
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* Excluded Features
List By
Amanda M. Murray

Listing Agent

Corcoran

Broker

917-328-0848

Contact

Affordability Calculator

$32,169
Per Month
90%
10%
0%
Monthly Principal & Interest
$29,045
Monthly Property Taxes
$3,124
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4099604 Elementary School
4099415 Middle School
Westhampton Beach Senior High Sch High School
Pricing History
DatePricePrice ChangeDescription
8/28/2026$4,600,000 Listed Price

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21 Seafield Lane, Westhampton Beach, NY, 11978 is a Single Family Home for sale at $4,600,000 with 6,941 sqft and a lot size of 1.02. 21 Seafield Lane has 7 bedrooms, 5.2 baths, and was built in 1930. The property's zip code is 11978 which is in Westhampton Beach, NY