21 Cornwallis Rd, East Setauket, NY 11733

Off Market Aug 2024 for $836K

$986,022

Est. refi paymentEst. refi $6,474/mo

•

—

sq ft

21 Cornwallis Rd, East Setauket, NY 11733

About this home

Traditional Center Hall Colonial Beautifully Maintained & Updated Showcasing Todays Wants & Needs. Large Family Room w Wood Burning Fireplace, 1st. Floor Office, Laundry Conveniently Located On The 1st Floor. Renovated Kitchen (2019) w. Light Cabinetry, Stainless Appliances, Granite Counters. Bathrooms All Renovated (2019) w. White Tile & Marble. Harwood Floors ( 1st Floor) Refinished and Stained. 2nd Floor Features Hardwood Floors Beneath Carpeting. Vinyl Siding & Roof (2012), Cast Iron Boiler (2014) Indirect HW Heater, Double Walled Oil Tank in Basement. Large Flat Backyard, Additional information: Appearance:Mint ++++,Separate Hotwater Heater:Y

Single-familyProperty Type

1970Year Built

0.52 acresLot Size

Listing by Donna Ferro • Howard Hanna Coach

Bought with Donna Ferro • Howard Hanna Coach

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #L3558611

Redfin Estimate

$986,022

$150K since sold in August 2024$3,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.2% higher than the average sale price ($946K) of 6 comparable homes.

SOLD JUL 16, 2026
$950,000
A
4 beds2.5 baths2,252 sq ft
12 Buccaneer Ln, East Setauket, NY 11733
Listing by Compass Greater NY LLC
SOLD JUL 13, 2026
$875,000
B
4 beds2.5 baths2,500 sq ft
19 Spyglass Ln, East Setauket, NY 11733
Listing by Signature Premier Properties
SOLD JUL 21, 2026
$800,000
C
4 beds2.5 baths2,000 sq ft
3 Split Rail Ln, East Setauket, NY 11733
Listing by Modern Realty and Management
SOLD NOV 10, 2025
$735,000
D
4 beds2 baths1,935 sq ft
39 Cornwallis Rd, East Setauket, NY 11733
Listing by Realty Connect USA L I Inc
SOLD JUL 15, 2026
$1,325,000
E
4 beds2.5 baths3,181 sq ft
5 Clemens Ct, East Setauket, NY 11733
Listing by Daniel Gale Sothebys Intl Rlty
SOLD JUL 16, 2026
$990,000
F
4 beds2.5 baths2,600 sq ft
1 Carriage Ct, Stony Brook, NY 11790
Listing by Howard Hanna Coach

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Earn from this home

Sell

$284,340

Est. take-home

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Refinance

Est. cash available

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Rent

$3,344/mo

Redfin rental estimate

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Market trends in 11733, NY

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.4%

+0.7% MoM

Median sale price

$900K

$25K MoM

Avg. days on market

25d

1 days MoM

Recently sold homes

12 MoM

New listings for sale

NEW 15 HRS AGO
$2,475,000
6 beds5.5 baths5,955 sq ft
2 Meadow Sea Ln, East Setauket, NY 11733
Listing by Howard Hanna Coach
OPEN SAT, 11:30AM TO 1:30PM
$1,199,900
4 beds2.5 baths3,000 sq ft
34 Varsity Blvd, East Setauket, NY 11733
Listing by Aliano Real Estate
OPEN SAT, 12PM TO 2PM
$899,000
4 beds2.5 baths2,457 sq ft
15 Fox Rd, East Setauket, NY 11733
Listing by Howard Hanna Coach
OPEN SAT, 1PM TO 3PM
$739,999
4 beds3 baths1,653 sq ft
43 Huyler Ct, Setauket, NY 11733
Listing by Signature Premier Properties
OPEN SAT, 2PM TO 5PM
$799,999
3 beds2.5 baths2,000 sq ft
112 Erin Ln, East Setauket, NY 11733
Listing by HomeSmart Premier Living Rlty
OPEN SAT, 11AM TO 1PM
$624,999
2 beds2.5 baths1,906 sq ft
31 Willow Wood Dr, East Setauket, NY 11733
Listing by Signature Premier Properties
COMING SOON
$869,000
3 beds2 baths2,500 sq ft
3 High Gate Dr, East Setauket, NY 11733
Listing by Signature Premier Properties
OPEN SUN, 1PM TO 3PM
$749,999
3 beds2 baths1,950 sq ft
1 Cottontail Ln, East Setauket, NY 11733
Listing by Charles Rutenberg Realty Inc
COMING SOON
$1,125,000
3 beds2.5 baths1,852 sq ft
5 Cricket Hollow Rd, Setauket, NY 11733
Listing by Signature Premier Properties
OPEN SAT, 11AM TO 1PM
$1,299,999
4 beds2.5 baths5,049 sq ft
10 Redbridge Ct, East Setauket, NY 11733
Listing by BERKSHIRE HATHAWAY
See all

Provided by Redfin

Sale history for 21 Cornwallis Rd

Year

Property tax

Land + Additions

Assessment*

2026

$21,445

$375 + $4,775

$5,150

2025

$21,445 (−6.9%)

$375 + $4,775

$5,150

2024

$23,041 (+7.0%)

$375 + $4,775

$5,150

2023

$21,539 (+3.5%)

$375 + $4,775

$5,150

2022

$20,815

$375 + $4,775

$5,150

2021

$20,815 (+0.9%)

$375 + $4,775

$5,150

2020

$20,625 (+1.7%)

$375 + $4,775

$5,150

2019

$20,277 (+2.9%)

$375 + $4,775

$5,150

2018

$19,710 (+2.1%)

$375 + $4,775

$5,150

2017

$19,310 (+1.5%)

$375 + $4,775

$5,150

2016

$19,026 (+7.1%)

$375 + $4,775

$5,150

2015

$17,764 (+2.3%)

$375 + $4,775

$5,150

2014

$17,370 (+3.2%)

$375 + $4,775

$5,150

2013

$16,836 (+2.1%)

$375 + $4,775

$5,150

2012

$16,495 (+12.1%)

$375 + $4,775

$5,150

2011

$14,718 (+2.5%)

$375 + $4,775

$5,150

2010

$14,357 (+3.0%)

$375 + $4,775

$5,150

2009

$13,936

$375 + $4,775

$5,150

Tax history for 21 Cornwallis Rd

Year

Property tax

Land + Additions

Assessment*

2026

$21,445

$375 + $4,775

$5,150

2025

$21,445 (−6.9%)

$375 + $4,775

$5,150

2024

$23,041 (+7.0%)

$375 + $4,775

$5,150

2023

$21,539 (+3.5%)

$375 + $4,775

$5,150

2022

$20,815

$375 + $4,775

$5,150

2021

$20,815 (+0.9%)

$375 + $4,775

$5,150

2020

$20,625 (+1.7%)

$375 + $4,775

$5,150

2019

$20,277 (+2.9%)

$375 + $4,775

$5,150

2018

$19,710 (+2.1%)

$375 + $4,775

$5,150

2017

$19,310 (+1.5%)

$375 + $4,775

$5,150

2016

$19,026 (+7.1%)

$375 + $4,775

$5,150

2015

$17,764 (+2.3%)

$375 + $4,775

$5,150

2014

$17,370 (+3.2%)

$375 + $4,775

$5,150

2013

$16,836 (+2.1%)

$375 + $4,775

$5,150

2012

$16,495 (+12.1%)

$375 + $4,775

$5,150

2011

$14,718 (+2.5%)

$375 + $4,775

$5,150

2010

$14,357 (+3.0%)

$375 + $4,775

$5,150

2009

$13,936

$375 + $4,775

$5,150

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

Public record

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

0.52 Acres

Year renovated

—

Sq. Ft.

—

Year built

—

Style

Single Family Residential

County

Suffolk County

APN

0200249000300022000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 31, 2026.

Property details

Parking

Parking Information
Parking Features: Attached, Private

Interior

Virtual Tour Information

Fireplace Information
Has Fireplace
Fireplaces Total: 1

Heating & Cooling
Cooling: Central Air
Heating: Baseboard, Oil

Interior Features
Interior Features: Cathedral Ceiling(s),Eat-in Kitchen,Entrance Foyer,Formal Dining,Primary Bathroom
Window Features: Skylight(s)
Appliances: Dishwasher, Dryer, Microwave, Refrigerator, Washer, Indirect Water Heater
Flooring: Hardwood
Patio And Porch Features: Deck

Room Information
Room Description: Foyer, Living Rm, Office, Dining Rm, Eat In Kitchen, Laundry, Half Bath, Den w. Fireplace ||Master Bdrm w. Ful Bath, 3 Addt'l Bdrms, Full Bath||Utolities, Open Area, Access to 2 car Garage
Basement YN: No
Attic: Scuttle
Rooms Total: 9
Basement: Full
Additional Rooms: Home Office,Library/Den

Bathroom Information
Bathrooms Full: 2
Bathrooms Half: 1

Exterior

Exterior Features
Exterior Features: Mailbox
Construction Materials: Frame, Vinyl Siding

Lot Information
Additional Parcels YN: No
Lot Features: Near School, Sprinklers In Front, Sprinklers In Rear

Property Information
Property Sub Type: Single Family Residence

Financial

Tax Information
Tax Section: 249
Tax Annual Amount: $21,275

Financial Information
Buyer Financing: VA

Utilities

Utility Information
Sewer: Cesspool

Location

School Information
Elementary School: Nassakeag Elementary School
Middle Or Junior School: Robert Cushman Murphy Jr High School
High School: Ward Melville Senior High School
High School District: Three Village

Location Information
Hamlet: East Setauket
Directions: Pond Path to Cornwallis
County Or Parish: Suffolk County

Public facts

Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 0.52 acres
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: Suffolk County
APN: 0200249000300022000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Nassakeag Elementary School

Public PreK-6 • Assigned • 0.2mi

9/10

Robert Cushman Murphy Junior High School

Public 7-9 • Assigned • 1.1mi

8/10

Ward Melville Senior High School

Public 9-12 • Assigned • 1.8mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 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 95° expected this year, 17 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

East Setauket, NY • 11733

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 8.8 hours in June and 4.5 hours in December, which is comparable to the U.S. average for solar exposure.

8.8 hrs

4.5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$937,000 – $1.13M

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COMING SOON

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Listing by Signature Premier Properties

OPEN SUN, 1PM TO 3PM

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COMING SOON

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Home values near 21 Cornwallis Rd

Data from public records.

Address	Redfin Estimate
32 Cornwallis Rd, East Setauket, NY 4 Beds \| 2.5 Baths \| 2845 Sq. Ft.	$1,006,423
27 Cornwallis Rd, East Setauket, NY 4 Beds \| 2.5 Baths \| - Sq. Ft.	$908,345

Address	Redfin Estimate
26 Cornwallis Rd, East Setauket, NY 4 Beds \| 3 Baths \| - Sq. Ft.	$894,142
16 Cornwallis Rd, East Setauket, NY - Beds \| - Baths \| - Sq. Ft.	$847,178

Address	Redfin Estimate
11 Cornwallis Rd, East Setauket, NY 5 Beds \| 3 Baths \| - Sq. Ft.	$894,717
4 Cornell Ct, East Setauket, NY 4 Beds \| 3 Baths \| - Sq. Ft.	$914,801

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2024. This data may not match . Learn more.

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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 11733, NY

Sale history for 21 Cornwallis Rd

Tax history for 21 Cornwallis Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11733

Home values near 21 Cornwallis Rd

More real estate resources