Google street view image for 840 Cobb Rd W, Water Mill, NY 11976

Off market apr 2009 for $5M

$7,808,043

Est. refi paymentEst. refi $33,802/mo

•

4 ba

•

4,264

sq ft

840 Cobb Rd W, Water Mill, NY 11976

About this home

840 Cobb Rd W is a 4,264 square foot house on a 1.96 acre lot with 4 bedrooms and 4 bathrooms. - it last sold on April 09, 2009 for $5,000,000. Based on Redfin's Water Mill data, we estimate the home's value is $7,808,043.

Single-familyProperty Type

1990Year Built

1.96 acresLot Size

$1,831Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$7,808,043

$2.8M since sold in April 2009$92K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 20.5% higher than the average sale price ($6.48M) of 2 comparable homes.

SOLD JUL 20, 2026
$4,100,000
A
4 beds4.5 baths4,347 sq ft
3 Whispering Fields Ct, Water Mill, NY 11976
Listing by Douglas Elliman Real Estate
SOLD JUN 26, 2026
$8,857,000
B
5 beds6 baths3,654 sq ft
210 Downs Path, Southampton, NY 11968
Listing by Brown Harris Stevens Hamptons

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Earn from this home

Sell

$5,124,777

Est. take-home

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Est. cash available

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Rent

$4,622/mo

Redfin rental estimate

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Market trends in 11976, NY

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

93.2%

+9.2% MoM

Median sale price

$4.1M

$2M MoM

Avg. days on market

83d

12 days MoM

Recently sold homes

1 MoM

Provided by Redfin

Sale history for 840 Cobb Rd W

Year

Property tax

Land + Additions

Assessment*

2022

$19,490

$3,678,300 + $1,013,100

$4,691,400

2021

$19,490 (+1.0%)

$3,678,300 + $1,024,100

$4,702,400

2020

$19,295 (+1.7%)

$3,678,300 + $1,024,100

$4,702,400

2019

$18,969 (−5.4%)

$3,678,300 + $1,024,100

$4,702,400

2018

$20,041 (−0.7%)

$3,679,300 + $946,000

$4,625,300

2017

$20,180 (−3.6%)

$3,678,300 + $946,000

$4,624,300

2016

$20,936 (−5.5%)

$3,678,300 + $946,000

$4,624,300

2015

$22,162 (−5.2%)

$3,678,300 + $946,000

$4,624,300

2014

$23,368 (+1.3%)

$3,939,700 + $946,000

$4,885,700

2013

$23,078 (+5.8%)

$3,939,700 + $946,000

$4,885,700

2012

$21,820 (+1.9%)

$3,939,700 + $885,900

$4,825,600

2011

$21,418 (+4.9%)

$3,939,700 + $885,900

$4,825,600

2010

$20,426 (−1.0%)

$3,939,700 + $630,100

$4,569,800

2009

$20,634

$3,939,700 + $630,100

$4,569,800

Tax history for 840 Cobb Rd W

Year

Property tax

Land + Additions

Assessment*

2022

$19,490

$3,678,300 + $1,013,100

$4,691,400

2021

$19,490 (+1.0%)

$3,678,300 + $1,024,100

$4,702,400

2020

$19,295 (+1.7%)

$3,678,300 + $1,024,100

$4,702,400

2019

$18,969 (−5.4%)

$3,678,300 + $1,024,100

$4,702,400

2018

$20,041 (−0.7%)

$3,679,300 + $946,000

$4,625,300

2017

$20,180 (−3.6%)

$3,678,300 + $946,000

$4,624,300

2016

$20,936 (−5.5%)

$3,678,300 + $946,000

$4,624,300

2015

$22,162 (−5.2%)

$3,678,300 + $946,000

$4,624,300

2014

$23,368 (+1.3%)

$3,939,700 + $946,000

$4,885,700

2013

$23,078 (+5.8%)

$3,939,700 + $946,000

$4,885,700

2012

$21,820 (+1.9%)

$3,939,700 + $885,900

$4,825,600

2011

$21,418 (+4.9%)

$3,939,700 + $885,900

$4,825,600

2010

$20,426 (−1.0%)

$3,939,700 + $630,100

$4,569,800

2009

$20,634

$3,939,700 + $630,100

$4,569,800

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

Property details

Interior

Basement Information
Basement Type: Crawl-Space

Bathroom Information
# of Full Baths: 4

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: Good
Building Style Type: Modern
Building Construction Quality: Excellent
Exterior Wall: Stucco
Building Type: Single Family

Pool Information
Pool Type: Gunite
Has Pool

Property Information
Living Sq. Ft: 4,264
Ground Floor Sq. Ft: 2,886
Building Sq. Ft: 4,264
# of Stories: 2
Legal Description: '89-SALE INC 2 PARCELSLOT22 AND POND AREA90 ADD/G/UNF+1450;91 FIN +6100

Lot Information
# of Buildings: 1
Land Sq. Ft: 85,378
Legal Lot Number: 22
Legal Block Number: 1
School Tax District: SOUTHHAMPTON
Municipality Name: SOUTHAMPTON
Acres: 1.96
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: 4.0
Sq. Ft.: 4,264
Stories: 2.0
Lot Size: 1.96 acres
Style: Single Family Residential
Year Built: 1990
Year Renovated: —
County: Suffolk County
APN: 0900160000100022001

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Southampton Intermediate School

Public 5-8 • Assigned • 1.1mi

6/10

Southampton High School

Public 9-12 • Assigned • 0.9mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

6/10 Flood Factor

Estimated 50-61% 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, 20 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

3/10 Air Factor

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

Provided by First Street

Historical weather

Water Mill, NY • 11976

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 9 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.

9 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$7.42M – $8.98M

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Nearby similar homes

NEW 15 HRS AGO

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3 beds2.5 baths1,256 sq ft

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Listing by Douglas Elliman Real Estate

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Listing by Brown Harris Stevens Hamptons

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NEW CONSTRUCTIONVIDEO TOUR

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Home values near 840 Cobb Rd W

Data from public records.

Address	Redfin Estimate
847 Cobb Rd W, Water Mill, NY 3 Beds \| 2 Baths \| 2702 Sq. Ft.	$4,327,853
864 Cobb Rd W, Water Mill, NY 5 Beds \| 6 Baths \| 4444 Sq. Ft.	$6,545,098

Address	Redfin Estimate
886 Cobb Rd W, Water Mill, NY 6 Beds \| 7 Baths \| 5504 Sq. Ft.	$9,946,958
877 Cobb Rd W, Water Mill, NY 3 Beds \| 4 Baths \| 3566 Sq. Ft.	$6,785,966

Address	Redfin Estimate
919 Cobb Rd W, Water Mill, NY 4 Beds \| 3 Baths \| 2406 Sq. Ft.	$5,242,574
936 Cobb Rd W, Water Mill, NY 7 Beds \| 10 Baths \| 8500 Sq. Ft.	$13,236,255

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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 11976, NY

Sale history for 840 Cobb Rd W

Tax history for 840 Cobb Rd W

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 840 Cobb Rd W

More real estate resources