Google street view image for 640 Dune Rd, Westhampton Beach, NY 11978

Off market oct 2004 for $1.4M

$2,602,748

Est. refi paymentEst. refi $9,922/mo

•

2 ba

•

2,300

sq ft

640 Dune Rd, Westhampton Beach, NY 11978

About this home

640 Dune Rd is a 2,300 square foot house on a 0.43 acre lot with 4 bedrooms and 2 bathrooms. - it last sold on October 13, 2004 for $1,475,000. Based on Redfin's Westhampton Beach data, we estimate the home's value is $2,602,748.

Single-familyProperty Type

2017Year Built

0.43 acresLot Size

$1,132Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,602,748

$1.1M since sold in October 2004$18K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 19.3% higher than the average sale price ($2.18M) of 5 comparable homes.

SOLD SEP 9, 2026
$4,400,000
A
4 beds3 baths2,258 sq ft
688 Dune Rd, Westhampton Beach, NY 11978
Listing by Compass Greater NY LLC
SOLD SEP 23, 2026
$1,250,000
B
3 beds2 baths2,171 sq ft
5 Wood Hollow Dr, Westhampton, NY 11977
Listing by Daniel Gale Sothebys Intl Rlty
SOLD SEP 24, 2026
$2,050,000
C
3 beds2.5 baths1,597 sq ft
580 Dune Rd #5, Westhampton Beach, NY 11978
Listing by Serhant East End LLC
SOLD MAR 19, 2026
$2,450,000
D
4 beds2 baths1,512 sq ft
630 Dune Rd, Westhampton Beach, NY 11977
Listing by Compass Greater NY LLC
SOLD AUG 7, 2026
$755,000
E
4 beds2 baths1,835 sq ft
8 Beverly Ln, East Moriches, NY 11940
Listing by First Hampton Int'l Realty LLC

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Earn from this home

Sell

$1,990,266

Est. take-home

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Refinance

Est. cash available

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Rent

$8,128/mo

Redfin rental estimate

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Market trends in 11978, NY

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

95.8%

1.8% MoM

Median sale price

$1.2M

$886K MoM

Avg. days on market

85d

21 days MoM

Recently sold homes

3 MoM

New listings for sale

OPEN SAT, 11:30AM TO 2PM
$1,799,000
4 beds2 baths1,926 sq ft
7 Bridle Path, Westhampton Beach, NY 11978
Listing by Serhant East End LLC
$1,569,000
2 beds3.5 baths1,728 sq ft
3018 Mitchell Rd, Westhampton Beach, NY 11978
Listing by Corcoran
$6,250,000
5 beds5 baths3,466 sq ft
824 Dune Rd, Westhampton Dunes, NY 11978
Listing by Compass Greater NY LLC
OPEN SUN, 10AM TO 11:30AM
$1,495,000
2 beds2 baths943 sq ft
260 Dune Rd #89, Westhampton Beach, NY 11978
Listing by Brown Harris Stevens W Hampton
See all

Provided by Redfin

Sale history for 640 Dune Rd

Year

Property tax

Land + Additions

Assessment*

2022

$12,257

$1,148,500 + $442,600

$1,591,100

2021

$12,257 (+1.5%)

$1,148,500 + $442,600

$1,591,100

2020

$12,074 (+2.8%)

$1,148,500 + $442,600

$1,591,100

2019

$11,741 (−7.4%)

$1,148,500 + $442,600

$1,591,100

2018

$12,681 (−0.1%)

$1,240,400 + $369,600

$1,610,000

2017

$12,700 (+12.0%)

$1,240,300 + $369,600

$1,609,900

2016

$11,340 (+4.4%)

$1,240,300 + $221,800

$1,462,100

2015

$10,865 (+2.6%)

$1,233,700 + $160,000

$1,393,700

2014

$10,592 (+0.3%)

$1,233,700 + $160,000

$1,393,700

2013

$10,560 (−15.9%)

$1,212,800 + $182,200

$1,395,000

2012

$12,560

$1,550,000 + $191,800

$1,741,800

2011

$12,565 (+29.5%)

$1,650,000 + $191,800

$1,841,800

2010

$9,702 (+1.6%)

$1,269,300 + $191,800

$1,461,100

2009

$9,548

$1,269,300 + $191,800

$1,461,100

Tax history for 640 Dune Rd

Year

Property tax

Land + Additions

Assessment*

2022

$12,257

$1,148,500 + $442,600

$1,591,100

2021

$12,257 (+1.5%)

$1,148,500 + $442,600

$1,591,100

2020

$12,074 (+2.8%)

$1,148,500 + $442,600

$1,591,100

2019

$11,741 (−7.4%)

$1,148,500 + $442,600

$1,591,100

2018

$12,681 (−0.1%)

$1,240,400 + $369,600

$1,610,000

2017

$12,700 (+12.0%)

$1,240,300 + $369,600

$1,609,900

2016

$11,340 (+4.4%)

$1,240,300 + $221,800

$1,462,100

2015

$10,865 (+2.6%)

$1,233,700 + $160,000

$1,393,700

2014

$10,592 (+0.3%)

$1,233,700 + $160,000

$1,393,700

2013

$10,560 (−15.9%)

$1,212,800 + $182,200

$1,395,000

2012

$12,560

$1,550,000 + $191,800

$1,741,800

2011

$12,565 (+29.5%)

$1,650,000 + $191,800

$1,841,800

2010

$9,702 (+1.6%)

$1,269,300 + $191,800

$1,461,100

2009

$9,548

$1,269,300 + $191,800

$1,461,100

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Air Conditioning Type: Central
Heating Fuel Type: Electric
Heating Type: Hot Air

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Ranch
Building Construction Quality: Average
Exterior Wall: Wood
Building Type: Single Family

Property Information
Subdivision Name: GUNNING PAINT BEACH
Living Sq. Ft: 2,300
Ground Floor Sq. Ft: 1,565
Building Sq. Ft: 2,300
# of Stories: 1
Legal Description: 1988 LD EQ + 2100

Lot Information
# of Buildings: 1
Land Sq. Ft: 18,731
Legal Lot Number: 27
Legal Block Number: 1
School Tax District: REMSENBURG-SPEONK
Municipality Name: SOUTHAMPTON
Acres: 0.43
Zoning Code: R40
State Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Private
Water Service Type: Commercial
Utility Type: Electric

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,300
Stories: 1.0
Lot Size: 0.43 acres
Style: Single Family Residential
Year Built: 2017
Year Renovated: —
County: Suffolk County
APN: 0900391000100027002

Home facts updated by county records on Aug 20, 2026

Around this home

Schools

Remsenburg Speonk Elementary School

Public K-6 • Assigned • 2.2mi

6/10

Westhampton Middle School

Public 6-8 • Assigned • 3.5mi

9/10

Eastport South Manor Junior Senior High School

Public 7-12 • Assigned • 7.6mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

10/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

7 days above 90° expected this year, 19 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Westhampton Beach, NY • 11978

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.9 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.

8.9 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$2.49M – $3.02M

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Nearby similar homes

$2,349,000

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Listing by Hampton Properties

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556 Dune Rd, Westhampton, NY 11977

Listing by Compass Greater NY LLC

$1,345,000

3 beds3 baths2,310 sq ft

171 Jonathan Ln, Westhampton, NY 11977

Listing by Brown Harris Stevens W Hampton

New listings for sale in 11978

OPEN SAT, 11:30AM TO 2PM

$1,799,000

4 beds2 baths1,926 sq ft

7 Bridle Path, Westhampton Beach, NY 11978

Listing by Serhant East End LLC

$1,569,000

2 beds3.5 baths1,728 sq ft

3018 Mitchell Rd, Westhampton Beach, NY 11978

Listing by Corcoran

$6,250,000

5 beds5 baths3,466 sq ft

824 Dune Rd, Westhampton Dunes, NY 11978

Listing by Compass Greater NY LLC

OPEN SUN, 10AM TO 11:30AM

$1,495,000

2 beds2 baths943 sq ft

260 Dune Rd #89, Westhampton Beach, NY 11978

Listing by Brown Harris Stevens W Hampton

Home values near 640 Dune Rd

Data from public records.

Address	Redfin Estimate
645 Dune Rd, Westhampton Beach, NY 4 Beds \| 3 Baths \| 1680 Sq. Ft.	$3,438,107
633 Dune Rd, Westhampton Beach, NY 4 Beds \| 3 Baths \| 1822 Sq. Ft.	$4,791,296

Address	Redfin Estimate
647 Dune Rd, Westhampton Beach, NY 3 Beds \| 2 Baths \| 2186 Sq. Ft.	$2,528,020
641 Dune Rd, Westhampton Beach, NY 4 Beds \| 2 Baths \| 2429 Sq. Ft.	$3,789,324

Address	Redfin Estimate
624 Dune Rd, Westhampton Beach, NY 4 Beds \| 2 Baths \| 1530 Sq. Ft.	$2,094,142
650A Dune Rd, Westhampton Beach, NY 4 Beds \| 3 Baths \| 1892 Sq. Ft.	$1,803,985

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 11978, NY

Sale history for 640 Dune Rd

Tax history for 640 Dune Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11978

Home values near 640 Dune Rd

More real estate resources