Google satellite image for 428 Harbor Rd Unit K, Cold Spring Harbor, NY 11724

Off Market Dec 2010 for $230K

$1,860,746

Est. refi paymentEst. refi $1,475/mo

—

•

3 ba

•

3,141

sq ft

428 Harbor Rd Unit K, Cold Spring Harbor, NY 11724

About this home

428 Harbor Rd Unit K is a 3,141 square foot house on a 2.55 acre lot with 3 bathrooms. - it last sold on December 17, 2010 for $230,000. Based on Redfin's Cold Spring Harbor data, we estimate the home's value is $1,860,746.

Single-familyProperty Type

1906Year Built

2.55 acresLot Size

$592Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,860,746

$1.6M since sold in December 2010$382K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 11.4% higher than the average sale price ($1.67M) of 5 comparable homes.

SOLD AUG 6, 2026
$2,000,000
A
4 beds3.5 baths5,135 sq ft
4 Springwood Path, Syosset, NY 11791
Listing by Compass Greater NY LLC
SOLD AUG 5, 2026
$1,650,000
B
4 beds2.5 baths3,581 sq ft
431 Woodbury Rd, Cold Spring Harbor, NY 11724
Listing by Daniel Gale Sothebys Intl Rlty
SOLD APR 28, 2026
$1,650,000
C
5 beds3.5 baths3,018 sq ft
15 Springwood Path, Syosset, NY 11791
Listing by Compass Greater NY LLC
SOLD MAR 6, 2026
$1,885,000
D
5 beds4 baths3,738 sq ft
10 Hemlock Ct, Oyster Bay, NY 11771
Listing by LAFFEY REAL ESTATE
SOLD MAY 7, 2026
$1,165,000
E
4 beds3 baths3,100 sq ft
43 Carnegie Ave, Huntington, NY 11743
Listing by Signature Premier Properties

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Earn from this home

Sell

$1,637,854

Est. take-home

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Est. cash available

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Market trends in 11791, NY

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.8%

+0.3% MoM

Median sale price

$1.3M

$5K MoM

Avg. days on market

29d

7 days MoM

Recently sold homes

12 MoM

New listings for sale

$2,675,000
3 beds3 baths3,450 sq ft
41 Snowball Dr, Cold Spring Harbor, NY 11724
Listing by ACC Real Estate Services Inc
$1,795,000
3 beds2.5 baths— sq ft
4 Woodleaf Ct, Cold Spring Harbor, NY 11724
Listing by Daniel Gale Sothebys Intl Rlty
See all

Provided by Redfin

Sale history for 428 Harbor Rd Unit K

Year

Property tax

Land + Additions

Assessment*

2025

$19,855

$428 + $617

$1,045

2024

$19,845 (+4.3%)

$428 + $617

$1,045

2023

$19,027 (+11.7%)

$428 + $617

$1,045

2022

$17,034 (−0.3%)

$428 + $617

$1,045

2021

$17,092 (−20.9%)

$543 + $782

$1,325

2020

$21,618 (+23.9%)

$543 + $782

$1,325

2019

$17,454 (+14.6%)

$526 + $758

$1,284

2018

$15,224 (+4.5%)

$954 + $640

$1,594

2017

$14,565 (+4.3%)

$954 + $640

$1,594

2016

$13,962 (+13.5%)

$954 + $640

$1,594

2015

$12,303 (+1.0%)

$954 + $640

$1,594

2014

$12,184 (+2.7%)

$954 + $640

$1,594

2013

$11,860 (+2.4%)

$1,408 + $944

$2,352

2012

$11,577 (+12.4%)

$1,408 + $1,032

$2,440

2011

$10,297 (−20.6%)

$1,408 + $614

$2,022

2010

$12,973 (−6.5%)

$1,408 + $500

$1,908

2009

$13,879

$1,408 + $1,135

$2,543

Tax history for 428 Harbor Rd Unit K

Year

Property tax

Land + Additions

Assessment*

2025

$19,855

$428 + $617

$1,045

2024

$19,845 (+4.3%)

$428 + $617

$1,045

2023

$19,027 (+11.7%)

$428 + $617

$1,045

2022

$17,034 (−0.3%)

$428 + $617

$1,045

2021

$17,092 (−20.9%)

$543 + $782

$1,325

2020

$21,618 (+23.9%)

$543 + $782

$1,325

2019

$17,454 (+14.6%)

$526 + $758

$1,284

2018

$15,224 (+4.5%)

$954 + $640

$1,594

2017

$14,565 (+4.3%)

$954 + $640

$1,594

2016

$13,962 (+13.5%)

$954 + $640

$1,594

2015

$12,303 (+1.0%)

$954 + $640

$1,594

2014

$12,184 (+2.7%)

$954 + $640

$1,594

2013

$11,860 (+2.4%)

$1,408 + $944

$2,352

2012

$11,577 (+12.4%)

$1,408 + $1,032

$2,440

2011

$10,297 (−20.6%)

$1,408 + $614

$2,022

2010

$12,973 (−6.5%)

$1,408 + $500

$1,908

2009

$13,879

$1,408 + $1,135

$2,543

*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 Sq. Ft: 289

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 2

Heating & Cooling
Air Conditioning Type: Central
Heating Fuel Type: Oil
Heating Type: Central

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 8

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Old
Exterior Wall: Frame

Property Information
Subdivision Name: TOWN/OYSTER BAY
Living Sq. Ft: 3,141
Ground Floor Sq. Ft: 663
Building Sq. Ft: 3,430
# of Units: 1
# of Stories: 2

Parking & Garage Information
Parking Type: Frame Garage
Garage/Parking Sq. Ft: 289
Garage / Carport Type: Frame

Lot Information
# of Buildings: 1
Land Sq. Ft: 111,013
Legal Lot Number: 1068
Legal Block Number: A
Municipality Name: LAUREL HOLLOW
Acres: 2.5485
County Use Description: ONE FAMILY YEAR-ROUND RESIDENC

Utility Information
Electricity / Wiring Type: Available
Sewer Type: Public
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: —
Baths: 3.0
Sq. Ft.: 3,141
Stories: 2.0
Lot Size: 2.55 acres
Style: Single Family Residential
Year Built: 1906
Year Renovated: —
County: Nassau County
APN: 14 A 10680

Home facts updated by county records on Aug 17, 2026

Around this home

Schools

West Side School

Public 2-6 • Assigned • 0.9mi

9/10

Cold Spring Harbor High School

Public 7-12 • Assigned • 0.9mi

9/10

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 97° expected this year, 16 days in 30 years

6/10 Wind Factor

75% chance of strong winds in next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 6 days in 30 years

Provided by First Street

Historical weather

Cold Spring Harbor, NY • 11724

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 4.4 hours in December, placing it below the U.S. average for solar exposure.

8.8 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.77M – $2.14M

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Home values near 428 Harbor Rd Unit K

Data from public records.

Address	Redfin Estimate
428 Harbor Road Unit L, Cold Spring Harbor, NY - Beds \| 3 Baths \| 2079 Sq. Ft.	$1,731,210
428 Harbor Road Unit G, Cold Spring Harbor, NY - Beds \| 2.5 Baths \| 3731 Sq. Ft.	$2,349,868

Address	Redfin Estimate
428 Harbor Road Unit J, Cold Spring Harbor, NY - Beds \| 5.5 Baths \| 6532 Sq. Ft.	$3,469,763
428 Harbor Road, Cold Spring Harbor, NY - Beds \| 2 Baths \| 1800 Sq. Ft.	$1,507,072

Address	Redfin Estimate
428 Harbor Road, Cold Spring Harbor, NY - Beds \| 2.5 Baths \| 3495 Sq. Ft.	$2,140,090
428 Harbor Road, Cold Spring Harbor, NY - Beds \| 7 Baths \| 5995 Sq. Ft.	$3,387,688

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