Google satellite image for 121 Cobb Isle Rd, Water Mill, NY 11976

Off market aug 2014 for $21M

$16,968,737

Est. refi paymentEst. refi $138,544/mo

•

3 ba

•

6,407

sq ft

121 Cobb Isle Rd, Water Mill, NY 11976

About this home

121 Cobb Isle Rd is a 6,407 square foot house on a 1 acre lot with 6 bedrooms and 3 bathrooms. - it last sold on August 28, 2014 for $21,239,000. Based on Redfin's Water Mill data, we estimate the home's value is $16,968,737.

Single-familyProperty Type

2016Year Built

1 acresLot Size

$2,648Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$16,968,737

$4.3M since sold in August 2014$425K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 214.2% higher than the average sale price ($5.40M) of 2 comparable homes.

SOLD OCT 8, 2026
$3,450,000
A
6 beds5.5 baths3,972 sq ft
4 Spring Ln, Southampton, NY 11968
Listing by Brown Harris Stevens Hamptons
SOLD AUG 7, 2026
$7,350,000
B
6 beds5.5 baths5,074 sq ft
299 Narrow Ln, Southampton, NY 11968
Listing by Sothebys Int'l Realty Hamptons

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Earn from this home

Sell

$3,660,647

Est. take-home

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Refinance

Est. cash available

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Rent

$4,442/mo

Redfin rental estimate

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Market trends in 11976, NY

Last updated October 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

New listings for sale

NEW 36 MINS AGO
$2,995,000
3 beds2 baths1,700 sq ft
700 Edge Of Woods Rd, Water Mill, NY 11976
Listing by Brown Harris Stevens Hamptons
FOR SALE BY OWNER
$4,550,000
5 beds6 baths4,800 sq ft
50 Tanager Ln, Water Mill, NY 11976
$2,999,995
4 beds4.5 baths2,400 sq ft
2 Schwenks Rd, Water Mill, NY 11976
Listing by Douglas Elliman Real Estate
See all

Provided by Redfin

Sale history for 121 Cobb Isle Rd

Year

Property tax

Land + Additions

Assessment*

2022

$87,726

$15,082,200 + $6,083,700

$21,165,900

2021

$87,726 (+1.0%)

$15,082,200 + $6,083,700

$21,165,900

2020

$86,850 (+1.7%)

$15,082,200 + $6,083,700

$21,165,900

2019

$85,378 (+10.8%)

$15,082,200 + $6,083,500

$21,165,700

2018

$77,061 (+7.7%)

$11,701,700 + $6,083,500

$17,785,200

2017

$71,522 (−4.0%)

$11,701,700 + $4,585,100

$16,286,800

2016

$74,485 (+92.1%)

$11,701,700 + $4,585,100

$16,286,800

2015

$38,776 (+0.2%)

$5,408,800 + $2,682,200

$8,091,000

2014

$38,699 (+1.3%)

$5,408,800 + $2,682,200

$8,091,000

2013

$38,219 (+5.2%)

$5,408,800 + $2,682,200

$8,091,000

2012

$36,320 (+24.6%)

$5,408,800 + $2,623,400

$8,032,200

2011

$29,141 (+9.5%)

$5,408,800 + $1,156,900

$6,565,700

2010

$26,606 (−1.0%)

$5,408,800 + $543,500

$5,952,300

2009

$26,876

$5,408,800 + $543,500

$5,952,300

Tax history for 121 Cobb Isle Rd

Year

Property tax

Land + Additions

Assessment*

2022

$87,726

$15,082,200 + $6,083,700

$21,165,900

2021

$87,726 (+1.0%)

$15,082,200 + $6,083,700

$21,165,900

2020

$86,850 (+1.7%)

$15,082,200 + $6,083,700

$21,165,900

2019

$85,378 (+10.8%)

$15,082,200 + $6,083,500

$21,165,700

2018

$77,061 (+7.7%)

$11,701,700 + $6,083,500

$17,785,200

2017

$71,522 (−4.0%)

$11,701,700 + $4,585,100

$16,286,800

2016

$74,485 (+92.1%)

$11,701,700 + $4,585,100

$16,286,800

2015

$38,776 (+0.2%)

$5,408,800 + $2,682,200

$8,091,000

2014

$38,699 (+1.3%)

$5,408,800 + $2,682,200

$8,091,000

2013

$38,219 (+5.2%)

$5,408,800 + $2,682,200

$8,091,000

2012

$36,320 (+24.6%)

$5,408,800 + $2,623,400

$8,032,200

2011

$29,141 (+9.5%)

$5,408,800 + $1,156,900

$6,565,700

2010

$26,606 (−1.0%)

$5,408,800 + $543,500

$5,952,300

2009

$26,876

$5,408,800 + $543,500

$5,952,300

*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: 3

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

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Contemporary
Building Construction Quality: Excellent
Building Type: Single Family

Pool Information
Pool Type: Gunite
Has Pool

Property Information
Living Sq. Ft: 6,407
Ground Floor Sq. Ft: 2,892
Building Sq. Ft: 6,407
Legal Description: * SOUTHWEST PART OF LOT 1OK-REG TO VOTE-NO EXMT NA

Parking & Garage Information
Garage/Parking Sq. Ft: 624

Lot Information
# of Buildings: 1
Land Sq. Ft: 43,560
Legal Lot Number: 1
Legal Block Number: 3
School Tax District: SOUTHHAMPTON
Municipality Name: SOUTHAMPTON
Acres: 1
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: 6
Baths: 3.0
Sq. Ft.: 6,407
Stories: —
Lot Size: 1 acres
Style: Single Family Residential
Year Built: 2016
Year Renovated: —
County: Suffolk County
APN: 0900160000300031000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Southampton Intermediate School

Public 5-8 • Assigned • 1.7mi

6/10

Southampton High School

Public 9-12 • Assigned • 1.6mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

5/10 Flood Factor

Estimated 45-55% 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, 3 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

$16.12M – $19.52M

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Nearby similar homes

$5,499,000

7 beds6 baths5,209 sq ft

652 Noyack Path, Water Mill, NY 11976

Private gate • Expansive acreage • Gourmet kitchen

Listing by Sothebys Int'l Realty Hamptons

NEW CONSTRUCTIONVIDEO TOUR

$11,995,000

8 beds11 baths9,906 sq ft

450 Seven Ponds Towd Rd, Water Mill, NY 11976

Private access road • Custom kitchen • Junior primary suite

Listing by Douglas Elliman Real Estate

$5,495,000

8 beds8.5 baths11,436 sq ft

2136 Deerfield Rd, Sag Harbor, NY 11963

Gated compound • Private acres • Heated gunite pool

Listing by Brown Harris Stevens Hamptons

$2,495,000

5 beds5 baths3,500 sq ft

1579 N Sea Rd, Southampton, NY 11968

1.43 acre lot • 2 garage spots • Pool

Listing by Douglas Elliman Real Estate

$1,650,000

3 beds1 bath1,018 sq ft

98 Powell Ave, Southampton, NY 11968

Heated gunite pool • 0.38 acre lot • Listed 147 days

Listing by Sothebys Int'l Realty Hamptons

$885,000

3 beds2 baths1,200 sq ft

30 Fords Ln, Southampton, NY 11968

Quiet neighborhood • Dead end street • Affordable taxes

Listing by BH&G R E Realty Connect

New listings for sale in 11976

NEW 36 MINS AGO

$2,995,000

3 beds2 baths1,700 sq ft

700 Edge Of Woods Rd, Water Mill, NY 11976

Modern kitchen • Versatile bonus room • Expansive lot size

Listing by Brown Harris Stevens Hamptons

FOR SALE BY OWNER

$4,550,000

5 beds6 baths4,800 sq ft

50 Tanager Ln, Water Mill, NY 11976

Heated gunite pool • Barbeque grill • Room for tennis

$2,999,995

4 beds4.5 baths2,400 sq ft

2 Schwenks Rd, Water Mill, NY 11976

Junior primary suite • Indoor outdoor setup • Mature landscaping

Listing by Douglas Elliman Real Estate

Home values near 121 Cobb Isle Rd

Data from public records.

Address	Redfin Estimate
52 Cobb Isle Rd, Water Mill, NY 5 Beds \| 3 Baths \| 5176 Sq. Ft.	$8,369,101
54 Cobb Isle Rd, Water Mill, NY 4 Beds \| 7 Baths \| 7298 Sq. Ft.	$10,557,231

Address	Redfin Estimate
80 Cobb Isle Rd, Water Mill, NY 7 Beds \| 3 Baths \| 7155 Sq. Ft.	$12,519,391
117 Cobb Isle Rd, Water Mill, NY 4 Beds \| 6 Baths \| 5716 Sq. Ft.	$11,869,550

Address	Redfin Estimate
104 Cobb Isle Rd, Water Mill, NY 5 Beds \| 4 Baths \| 3335 Sq. Ft.	$7,203,698
91 Cobb Isle Rd, Water Mill, NY 6 Beds \| 4 Baths \| 11728 Sq. Ft.	$16,421,384

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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 121 Cobb Isle Rd

Tax history for 121 Cobb Isle Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11976

Home values near 121 Cobb Isle Rd

More real estate resources