Google street view image for 309 Walnut St, Dunellen, NJ 08812

Off market sep 1994 for $149K

$558,481

Est. refi paymentEst. refi $1,176/mo

—

•

— ba

•

1,708

sq ft

309 Walnut St, Dunellen, NJ 08812

About this home

309 Walnut St is a 1,708 square foot house on a 5,397 square foot lot. - it last sold on September 07, 1994 for $149,995. Based on Redfin's Dunellen data, we estimate the home's value is $558,481.

Single-familyProperty Type

1976Year Built

5,397 sq ftLot Size

$327Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$558,481

$408K since sold in September 1994$10K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.8% higher than the average sale price ($523K) of 6 comparable homes.

SOLD OCT 2, 2026
$505,000
A
3 beds1 bath1,309 sq ft
220 Penfield Pl, Dunellen, NJ 08812
SOLD JUN 22, 2026
$705,000
B
4 beds3 baths1,936 sq ft
107 Madison Ave, Dunellen, NJ 08812
SOLD JUL 27, 2026
$263,100
C
3 beds2 baths— sq ft
1894 4th St, Dunellen, NJ 08812
SOLD OCT 13, 2026
$545,000
D
3 beds1.5 baths1,580 sq ft
1852 W 5th St, Piscataway, NJ 08854
SOLD APR 8, 2026
$565,000
E
4 beds1.5 baths— sq ft
1621 Albert St, Piscataway, NJ 08854
SOLD MAY 29, 2026
$555,000
F
4 beds2 baths1,872 sq ft
241 Orange St, Dunellen, NJ 08812

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Earn from this home

Sell

$524,339

Est. take-home

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Est. cash available

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Market trends in 08812, NJ

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.2%

1.1% MoM

Median sale price

$580K

$30K MoM

Avg. days on market

30d

4 days MoM

Recently sold homes

1 MoM

New listings for sale

NEW 14 HRS AGO
$379,000
2 beds1.5 baths— sq ft
1008 Robin Ct, Green Brook Township, NJ 08812
$499,000
3 beds1.5 baths— sq ft
121 Washington Ave, Dunellen, NJ 08812
$499,000
3 beds1.5 baths1,809 sq ft
121 S Washington Ave, Dunellen, NJ 08812
$625,000
5 beds2 baths1,794 sq ft
417 Jefferson Ave, Dunellen, NJ 08812-1306
$539,000
2 beds3 baths1,629 sq ft
86 Depot Way, Dunellen, NJ 08812
OPEN SUN, 12PM TO 3PM
$599,000
5 beds2 baths— sq ft
114 3rd St, Dunellen, NJ 08812
See all

Provided by Redfin

Sale history for 309 Walnut St

Year

Property tax

Land + Additions

Assessment*

2025

$12,722 (+9.3%)

$96,900 + $432,700

$529,600

2024

$11,642 (+3.7%)

$96,900 + $422,800

$519,700

2023

$11,225 (+7.9%)

$96,900 + $367,300

$464,200

2022

$10,403 (+6.0%)

$96,900 + $317,600

$414,500

2021

$9,815 (+3.5%)

$96,900 + $279,900

$376,800

2020

$9,484 (+4.7%)

$96,900 + $218,900

$315,800

2019

$9,061 (+3.8%)

$92,600 + $199,400

$292,000

2018

$8,725 (+4.2%)

$92,600 + $199,400

$292,000

2017

$8,372 (+3.8%)

$19,400 + $45,200

$64,600

2016

$8,066 (+4.8%)

$19,400 + $45,200

$64,600

2014

$7,699 (+1.2%)

$19,400 + $45,200

$64,600

2013

$7,604 (+1.4%)

$19,400 + $45,200

$64,600

2011

$7,498 (+2.7%)

$19,400 + $45,200

$64,600

2010

$7,298 (+3.8%)

$19,400 + $45,200

$64,600

2009

$7,030

$19,400 + $45,200

$64,600

Tax history for 309 Walnut St

Year

Property tax

Land + Additions

Assessment*

2025

$12,722 (+9.3%)

$96,900 + $432,700

$529,600

2024

$11,642 (+3.7%)

$96,900 + $422,800

$519,700

2023

$11,225 (+7.9%)

$96,900 + $367,300

$464,200

2022

$10,403 (+6.0%)

$96,900 + $317,600

$414,500

2021

$9,815 (+3.5%)

$96,900 + $279,900

$376,800

2020

$9,484 (+4.7%)

$96,900 + $218,900

$315,800

2019

$9,061 (+3.8%)

$92,600 + $199,400

$292,000

2018

$8,725 (+4.2%)

$92,600 + $199,400

$292,000

2017

$8,372 (+3.8%)

$19,400 + $45,200

$64,600

2016

$8,066 (+4.8%)

$19,400 + $45,200

$64,600

2014

$7,699 (+1.2%)

$19,400 + $45,200

$64,600

2013

$7,604 (+1.4%)

$19,400 + $45,200

$64,600

2011

$7,498 (+2.7%)

$19,400 + $45,200

$64,600

2010

$7,298 (+3.8%)

$19,400 + $45,200

$64,600

2009

$7,030

$19,400 + $45,200

$64,600

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

Property details

Exterior

Exterior Information
Building Style Type: Bi-Level
Exterior Wall: Frame

Property Information
Living Sq. Ft: 1,708
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,397
Legal Lot Number: 1.02
Legal Block Number: 76
Municipality Name: DUNELLEN BORO
Acres: 0.1239
Depth Footage: 83
Front Footage: 65
Zoning Code: RA
State Use Description: RESIDENTIAL

Financial

Assessor Information
Assessment Year: 2026
Tax District County: DUNELLEN BORO

Public facts

Beds: —
Baths: —
Sq. Ft.: 1,708
Stories: 2.0
Lot Size: 5,397 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: —
County: Middlesex County
APN: 0300076 00001 02

Home facts updated by county records on Sep 19, 2026

Around this home

Schools

John P. Faber Elementary School

Public PreK-5 • Assigned • 0.5mi

6/10

Lincoln Middle School

Public 6-8 • Assigned • 0.6mi

4/10

Dunellen High School

Public 9-12 • Assigned • 0.7mi

3/10

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

7/10 Heat Factor

7 days above 101° expected this year, 15 days in 30 years

6/10 Wind Factor

27% 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

Dunellen, NJ • 08812

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 8.7 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$531,000 – $643,000

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Nearby similar homes

$559,000

3 beds2 baths— sq ft

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Large backyard • Updated kitchen • Adjoining pantry

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End-unit home • Upgraded kitchen • Private patio

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2 beds1 bath— sq ft

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Renovated kitchen • Tiled shower • Unfinished basement

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New listings for sale in 08812

NEW 14 HRS AGO

$379,000

2 beds1.5 baths— sq ft

1008 Robin Ct, Green Brook Township, NJ 08812

Private cul-de-sac • Granite countertops • Breakfast bar

$499,000

3 beds1.5 baths— sq ft

121 Washington Ave, Dunellen, NJ 08812

Solid oak floors • Eat-in kitchen • Formal dining room

$499,000

3 beds1.5 baths1,809 sq ft

121 S Washington Ave, Dunellen, NJ 08812

Solid oak flooring • Eat-in kitchen • Formal dining room

$625,000

5 beds2 baths1,794 sq ft

417 Jefferson Ave, Dunellen, NJ 08812-1306

7,405 sq ft lot • Garage • Pool

$539,000

2 beds3 baths1,629 sq ft

86 Depot Way, Dunellen, NJ 08812

End-unit home • Upgraded kitchen • Private patio

OPEN SUN, 12PM TO 3PM

$599,000

5 beds2 baths— sq ft

114 3rd St, Dunellen, NJ 08812

Expanded cape • Stunning backyard • Granite countertops

Home values near 309 Walnut St

Data from public records.

Address	Redfin Estimate
308 Walnut Street, Dunellen, NJ - Beds \| - Baths \| 2048 Sq. Ft.	$586,588
318 Walnut Street, Dunellen, NJ 3 Beds \| 1.5 Baths \| - Sq. Ft.	$502,909

Address	Redfin Estimate
302 Walnut Street, Dunellen, NJ 5 Beds \| 2 Baths \| - Sq. Ft.	$573,560
314 Walnut Street, Dunellen, NJ 3 Beds \| 2 Baths \| 2053 Sq. Ft.	$558,662

Address	Redfin Estimate
322 Walnut Street, Dunellen, NJ - Beds \| - Baths \| 1454 Sq. Ft.	$539,274
331 Walnut Street, Dunellen, NJ - Beds \| - Baths \| 1303 Sq. Ft.	$521,290

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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 08812, NJ

Sale history for 309 Walnut St

Tax history for 309 Walnut St

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 08812

Home values near 309 Walnut St

More real estate resources