Google street view image for 18 Harness Rd, Saint James, NY 11780

Off market sep 2005 for $1.1M

$1,424,115

Est. refi paymentEst. refi $6,312/mo

•

2.5 ba

•

3,830

sq ft

18 Harness Rd, Saint James, NY 11780

About this home

18 Harness Rd is a 3,830 square foot house on a 1.02 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on September 23, 2005 for $1,140,000. Based on Redfin's Saint James data, we estimate the home's value is $1,424,115.

Single-familyProperty Type

1989Year Built

1.02 acresLot Size

$372Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,424,115

$284K since sold in September 2005$18K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 31.6% higher than the average sale price ($1.08M) of 6 comparable homes.

SOLD JUN 25, 2026
$1,325,000
A
4 beds2.5 baths3,015 sq ft
277 River Rd, Saint James, NY 11780
Listing by Daniel Gale Sothebys Intl Rlty
SOLD OCT 1, 2026
$975,000
B
3 beds2.5 baths3,313 sq ft
11 Annemarie Dr, Saint James, NY 11780
Listing by Signature Premier Properties
SOLD OCT 5, 2026
$1,075,000
C
4 beds2.5 baths3,054 sq ft
41 Astor Ave, Saint James, NY 11780
Listing by Daniel Gale Sothebys Intl Rlty
SOLD AUG 6, 2026
$1,118,000
D
4 beds2.5 baths2,738 sq ft
10 Weatherstone Way, Smithtown, NY 11787
Listing by Signature Premier Properties
SOLD JUN 26, 2026
$1,003,000
E
4 beds2.5 baths2,546 sq ft
330 Edgewood Ave, Smithtown, NY 11787
Listing by Gotham City Realty Group LLC
SOLD OCT 7, 2026
$999,000
F
4 beds2.5 baths2,220 sq ft
4 Patricks Way, Saint James, NY 11780
Listing by Howard Hanna Coach

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Sell

$950,286

Est. take-home

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Est. cash available

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Rent

$3,735/mo

Redfin rental estimate

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Market trends in 11780, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.9%

+0.5% MoM

Median sale price

$835K

$15K MoM

Avg. days on market

24d

3 days MoM

Recently sold homes

2 MoM

New listings for sale

$979,000
4 beds2.5 baths2,064 sq ft
3 Gate Rd, Head Of The Harbor, NY 11780
Listing by Daniel Gale Sothebys Intl Rlty
$1,499,000
5 beds4 baths4,000 sq ft
6 Cedarfield Ter, Saint James, NY 11780
Listing by HomeSmart Premier Living Rlty
$6,899,000
6 beds6.5 baths9,300 sq ft
1 Hunters Way, Nissequogue, NY 11780
Listing by Compass Greater NY LLC
$579,803
2 beds2 baths1,321 sq ft
1406 Gotham Ct W, Saint James, NY 11780
Listing by Signature Premier Properties
3D WALKTHROUGH
$699,000
3 beds3 baths1,354 sq ft
296 Moriches Rd, Smithtown, NY 11780
Listing by BH&G R E Realty Connect
See all

Provided by Redfin

Sale history for 18 Harness Rd

Year

Property tax

Land + Additions

Assessment*

2026

$26,663

$1,000 + $8,785

$9,785

2025

$26,663 (+4.1%)

$1,000 + $8,785

$9,785

2024

$25,603 (+2.6%)

$1,000 + $8,785

$9,785

2023

$24,958 (−0.8%)

$1,000 + $8,785

$9,785

2022

$25,150

$1,000 + $8,785

$9,785

2021

$25,150 (+1.6%)

$1,000 + $9,145

$10,145

2020

$24,757 (+4.5%)

$1,000 + $9,145

$10,145

2019

$23,692 (+1.2%)

$1,000 + $9,145

$10,145

2018

$23,401 (+3.8%)

$1,000 + $9,345

$10,345

2017

$22,554 (+1.2%)

$1,000 + $9,345

$10,345

2016

$22,285 (−2.2%)

$1,000 + $9,345

$10,345

2015

$22,790 (+2.2%)

$1,000 + $9,835

$10,835

2014

$22,291 (+3.7%)

$1,000 + $9,835

$10,835

2013

$21,490 (+1.9%)

$1,000 + $9,835

$10,835

2012

$21,085 (+5.3%)

$1,000 + $9,835

$10,835

2011

$20,031 (+3.0%)

$1,000 + $9,835

$10,835

2010

$19,453 (+0.6%)

$1,000 + $9,835

$10,835

2009

$19,330

$1,000 + $9,835

$10,835

Tax history for 18 Harness Rd

Year

Property tax

Land + Additions

Assessment*

2026

$26,663

$1,000 + $8,785

$9,785

2025

$26,663 (+4.1%)

$1,000 + $8,785

$9,785

2024

$25,603 (+2.6%)

$1,000 + $8,785

$9,785

2023

$24,958 (−0.8%)

$1,000 + $8,785

$9,785

2022

$25,150

$1,000 + $8,785

$9,785

2021

$25,150 (+1.6%)

$1,000 + $9,145

$10,145

2020

$24,757 (+4.5%)

$1,000 + $9,145

$10,145

2019

$23,692 (+1.2%)

$1,000 + $9,145

$10,145

2018

$23,401 (+3.8%)

$1,000 + $9,345

$10,345

2017

$22,554 (+1.2%)

$1,000 + $9,345

$10,345

2016

$22,285 (−2.2%)

$1,000 + $9,345

$10,345

2015

$22,790 (+2.2%)

$1,000 + $9,835

$10,835

2014

$22,291 (+3.7%)

$1,000 + $9,835

$10,835

2013

$21,490 (+1.9%)

$1,000 + $9,835

$10,835

2012

$21,085 (+5.3%)

$1,000 + $9,835

$10,835

2011

$20,031 (+3.0%)

$1,000 + $9,835

$10,835

2010

$19,453 (+0.6%)

$1,000 + $9,835

$10,835

2009

$19,330

$1,000 + $9,835

$10,835

*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
# of 1/2 Baths: 1

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

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Exterior

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

Pool Information
Pool Type: Steel/Vinyl
Has Pool

Property Information
Living Sq. Ft: 3,830
Ground Floor Sq. Ft: 1,900
Building Sq. Ft: 5,010
# of Stories: 2
Legal Description: 1-15326 TC-70 WHITESPRUCE FARMS @ SMITH*8073 LOT 10

Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,180
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 44,431
Legal Lot Number: 10
Legal Block Number: 3
School Tax District: SMITHTOWN
Municipality Name: SMITHTOWN
Acres: 1.02
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: 2.5
Sq. Ft.: 3,830
Stories: 2.0
Lot Size: 1.02 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: —
County: Suffolk County
APN: 0800080000300003010

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Dogwood Elementary School

Public K-5 • Assigned • 1.3mi

8/10

Nesaquake Middle School

Public 6-8 • Assigned • 0.2mi

7/10

Smithtown High School East

Public 9-12 • Assigned • 0.7mi

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, 16 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Saint James, NY • 11780

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, placing it below the U.S. average for solar exposure.

8.8 hrs

4.5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.35M – $1.64M

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Nearby similar homes

3D WALKTHROUGH

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New listings for sale in 11780

$979,000

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3 Gate Rd, Head Of The Harbor, NY 11780

Listing by Daniel Gale Sothebys Intl Rlty

$1,499,000

5 beds4 baths4,000 sq ft

6 Cedarfield Ter, Saint James, NY 11780

Listing by HomeSmart Premier Living Rlty

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6 beds6.5 baths9,300 sq ft

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Listing by Compass Greater NY LLC

$579,803

2 beds2 baths1,321 sq ft

1406 Gotham Ct W, Saint James, NY 11780

Listing by Signature Premier Properties

3D WALKTHROUGH

$699,000

3 beds3 baths1,354 sq ft

296 Moriches Rd, Smithtown, NY 11780

Listing by BH&G R E Realty Connect

Home values near 18 Harness Rd

Data from public records.

Address	Redfin Estimate
19 Harness Road, Saint James, NY 4 Beds \| 3.5 Baths \| 3670 Sq. Ft.	$1,499,584
20 Harness Road, Saint James, NY 4 Beds \| 3 Baths \| 2860 Sq. Ft.	$1,325,430

Address	Redfin Estimate
17 Harness Road, Saint James, NY 5 Beds \| 3 Baths \| 4030 Sq. Ft.	$1,428,929
7 Harness Road, Saint James, NY 4 Beds \| 3.5 Baths \| 3704 Sq. Ft.	$1,573,212

Address	Redfin Estimate
10 Harness Road, Saint James, NY 4 Beds \| 2.5 Baths \| 3187 Sq. Ft.	$1,518,694
11 Harness Road, Saint James, NY 5 Beds \| 4 Baths \| 3875 Sq. Ft.	$1,553,244

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