Google street view image for 21 Cornell Rd, Sag Harbor, NY 11963

Off market jul 2022 for $1.4M

$2,901,044

Est. refi paymentEst. refi $9,274/mo

•

2 ba

•

4,238

sq ft

21 Cornell Rd, Sag Harbor, NY 11963

About this home

21 Cornell Rd is a 4,238 square foot house on a 0.31 acre lot with 1 bedroom and 2 bathrooms. - it last sold on July 06, 2022 for $1,400,000. Based on Redfin's Sag Harbor data, we estimate the home's value is $2,901,044.

Single-familyProperty Type

1991Year Built

0.31 acresLot Size

$685Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,901,044

$1.5M since sold in July 2022$444K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 25.7% higher than the average sale price ($2.31M) of 5 comparable homes.

SOLD AUG 18, 2026
$2,865,000
A
4 beds4.5 baths3,600 sq ft
10 Bay View Rd N, Southampton, NY 11968
Listing by Douglas Elliman Real Estate
SOLD SEP 30, 2026
$2,550,000
B
3 beds2 baths1,600 sq ft
100 Crescent St, Sag Harbor, NY 11963
Listing by Douglas Elliman Real Estate
SOLD OCT 13, 2026
$1,875,000
C
4 beds3.5 baths3,174 sq ft
22 Peninsula Dr, Sag Harbor, NY 11963
Listing by Century 21 Agawam Town & Villa
SOLD APR 13, 2026
$1,901,000
D
2 beds2.5 baths1,852 sq ft
2803 Noyac Rd, Sag Harbor, NY 11963
Listing by Douglas Elliman Real Estate
SOLD SEP 25, 2026
$2,350,000
E
4 beds2 baths2,176 sq ft
58 Cliff Dr, Sag Harbor, NY 11963
Listing by Douglas Elliman Real Estate

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Earn from this home

Sell

$1,703,439

Est. take-home

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Est. cash available

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Rent

$3,000/mo

Redfin rental estimate

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Market trends in 11963, NY

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-list price

95.0%

+0.7% MoM

Median sale price

$3.9M

$799K MoM

Avg. days on market

151d

1 days MoM

Recently sold homes

3 MoM

New listings for sale

NEW 20 HRS AGO
$2,500,000
3 beds2 baths1,800 sq ft
21 Hillside Dr W, Sag Harbor, NY 11963
Listing by Douglas Elliman Real Estate
NEW 25 HRS AGO
$4,995,000
4 beds4 baths2,959 sq ft
6 Rector St, Sag Harbor, NY 11963
Listing by Douglas Elliman Real Estate
$4,995,000
6 beds4 baths4,771 sq ft
263 Ferry Rd Unit RT114, Sag Harbor, NY 11963
Listing by Hauseit LLC
$1,650,000
3 beds2.5 baths2,000 sq ft
246 Hampton St, Sag Harbor, NY 11963
Listing by Saunders West LLC
See all

Provided by Redfin

Sale history for 21 Cornell Rd

Year

Property tax

Land + Additions

Assessment*

2025

$1,363

$796,500

2024

$1,363 (−74.9%)

$796,500 + $185,000

$981,500

2023

$5,425 (−27.5%)

$796,500 + $185,000

$981,500

2022

$7,483 (−0.2%)

$796,500 + $185,000

$981,500

2021

$7,500 (+58.4%)

$796,500 + $185,000

$981,500

2020

$4,734 (−35.0%)

$796,500 + $185,000

$981,500

2019

$7,280 (+93.6%)

$796,500 + $185,000

$981,500

2018

$3,759 (+7.5%)

$575,300 + $173,300

$748,600

2017

$3,497 (+4.2%)

$531,000 + $173,300

$704,300

2016

$3,357 (−5.1%)

$482,700 + $173,300

$656,000

2015

$3,537 (+0.2%)

$482,700 + $173,300

$656,000

2014

$3,530 (−15.7%)

$482,700 + $173,300

$656,000

2013

$4,187 (+4.0%)

$603,400 + $173,300

$776,700

2012

$4,024 (+4.3%)

$603,400 + $173,300

$776,700

2011

$3,860 (+10.4%)

$603,400 + $173,300

$776,700

2010

$3,495 (+8.1%)

$603,400 + $173,300

$776,700

2009

$3,232

$603,400 + $173,300

$776,700

Tax history for 21 Cornell Rd

Year

Property tax

Land + Additions

Assessment*

2025

$1,363

$796,500

2024

$1,363 (−74.9%)

$796,500 + $185,000

$981,500

2023

$5,425 (−27.5%)

$796,500 + $185,000

$981,500

2022

$7,483 (−0.2%)

$796,500 + $185,000

$981,500

2021

$7,500 (+58.4%)

$796,500 + $185,000

$981,500

2020

$4,734 (−35.0%)

$796,500 + $185,000

$981,500

2019

$7,280 (+93.6%)

$796,500 + $185,000

$981,500

2018

$3,759 (+7.5%)

$575,300 + $173,300

$748,600

2017

$3,497 (+4.2%)

$531,000 + $173,300

$704,300

2016

$3,357 (−5.1%)

$482,700 + $173,300

$656,000

2015

$3,537 (+0.2%)

$482,700 + $173,300

$656,000

2014

$3,530 (−15.7%)

$482,700 + $173,300

$656,000

2013

$4,187 (+4.0%)

$603,400 + $173,300

$776,700

2012

$4,024 (+4.3%)

$603,400 + $173,300

$776,700

2011

$3,860 (+10.4%)

$603,400 + $173,300

$776,700

2010

$3,495 (+8.1%)

$603,400 + $173,300

$776,700

2009

$3,232

$603,400 + $173,300

$776,700

*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: Full

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Hot Water Steam

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Ranch
Building Construction Quality: Average
Exterior Wall: Aluminum/Vinyl
Building Type: Single Family

Property Information
Subdivision Name: REDWOOD SAG HARBOR
Living Sq. Ft: 4,238
Ground Floor Sq. Ft: 1,040
Building Sq. Ft: 4,238
# of Stories: 1
Legal Description: BLK N LOT 40-45

Lot Information
# of Buildings: 1
Land Sq. Ft: 13,504
Legal Lot Number: 40
Legal Block Number: N
School Tax District: SAG HARBOR
Municipality Name: SOUTHAMPTON
Acres: 0.31
Zoning Code: VILLA
State Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Commercial
Water Service Type: Commercial
Utility Type: Electric/Gas

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 1
Baths: 2.0
Sq. Ft.: 4,238
Stories: 1.0
Lot Size: 0.31 acres
Style: Single Family Residential
Year Built: 1991
Year Renovated: —
County: Suffolk County
APN: 0903001000100038000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Sag Harbor Elementary School

Public PreK-5 • Assigned • 1.2mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

3/10 Flood Factor

Minimal risk 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

5/10 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

3/10 Air Factor

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

Provided by First Street

Historical weather

Sag Harbor, NY • 11963

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

$2.76M – $3.34M

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Nearby similar homes

$4,995,000

6 beds4 baths4,771 sq ft

263 Ferry Rd Unit RT114, Sag Harbor, NY 11963

Gated entry • Chef's kitchen • Spa-level bath

Listing by Hauseit LLC

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Listing by Douglas Elliman Real Estate

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Landscaped acres • Electric gated entry • Circular driveway

Listing by Douglas Elliman Real Estate

3D WALKTHROUGH

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4 beds3.5 baths3,050 sq ft

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Five acre setting • Pool • Tennis court

Listing by Douglas Elliman Real Estate

$6,500,000

3 beds2 baths1,700 sq ft

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Waterfront offering • Water frontage • Private dock

Listing by Douglas Elliman Real Estate

$6,600,000

4 beds4 baths4,200 sq ft

16 Barclay Dr, Sag Harbor, NY 11963

Deep water dock • Private beach • 20 acre reserve

Listing by Brown Harris Stevens Hamptons

New listings for sale in 11963

NEW 20 HRS AGO

$2,500,000

3 beds2 baths1,800 sq ft

21 Hillside Dr W, Sag Harbor, NY 11963

Spa shower • Versatile bonus room • 9,583 sq ft lot

Listing by Douglas Elliman Real Estate

NEW 25 HRS AGO

$4,995,000

4 beds4 baths2,959 sq ft

6 Rector St, Sag Harbor, NY 11963

Historic district • Private deck • Water views

Listing by Douglas Elliman Real Estate

$4,995,000

6 beds4 baths4,771 sq ft

263 Ferry Rd Unit RT114, Sag Harbor, NY 11963

Gated entry • Chef's kitchen • Spa-level bath

Listing by Hauseit LLC

$1,650,000

3 beds2.5 baths2,000 sq ft

246 Hampton St, Sag Harbor, NY 11963

Turnkey retreat • Pool • Hot tub

Listing by Saunders West LLC

Home values near 21 Cornell Rd

Data from public records.

Address	Redfin Estimate
25 Cornell Rd, Sag Harbor, NY 3 Beds \| 3 Baths \| 2062 Sq. Ft.	$2,109,046
29 Cornell Rd, Sag Harbor, NY 4 Beds \| 2 Baths \| 2088 Sq. Ft.	$2,468,491

Address	Redfin Estimate
19 Cornell Rd, Sag Harbor, NY 4 Beds \| 1 Baths \| 2484 Sq. Ft.	$4,316,383
7 Cornell Rd, Sag Harbor, NY 2 Beds \| 1 Baths \| 858 Sq. Ft.	$1,777,800

Address	Redfin Estimate
12 Cornell Rd, Sag Harbor, NY 6 Beds \| 1 Baths \| 4105 Sq. Ft.	$6,579,015
26 Cornell Rd, Sag Harbor, NY 4 Beds \| 1 Baths \| 1206 Sq. Ft.	$1,819,172

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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 11963, NY

Sale history for 21 Cornell Rd

Tax history for 21 Cornell Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11963

Home values near 21 Cornell Rd

More real estate resources