OPEN SUN, 1PM TO 3PM

For sale

$489,900

Est. $3,631/mo —

•

1,395

sq ft

521 Dunellen Ave, Dunellen, NJ 08812

About this home

Charming Colonial with Classic Character and Spacious Backyard! This inviting 3-bedroom, 1.5-bath Colonial offers a wonderful combination of timeless charm, generous living space, and a convenient location. From the moment you enter, you'll appreciate the beautiful original woodwork, stained-glass accent windows, and traditional staircase that add warmth and character throughout. The main level features a spacious, sun-filled living room, formal dining room, and eat-in kitchen offering ample cabinetry, stainless steel appliances, and direct access to the rear deck. Upstairs, you'll find three bedrooms with hardwood flooring, a dedicated home office, and an updated full bath featuring marble-look tile and a modern vanity. A walk-up attic provides additional storage space, while the full unfinished basement offers a laundry area and plenty of room for storage. Outside, enjoy a spacious, fully fenced backyard with a large deck perfect for outdoor entertaining, along with a long driveway providing ample off-street parking and a 1-car detached garage. Conveniently located near shopping, dining, parks, schools, and commuter routes, this home offers a wonderful opportunity to enjoy comfortable living with classic Colonial charm.

Single-familyProperty Type

1928Year Built

7,501 sq ftLot Size

$351Price/Sq.Ft.

1 car garageParking

Listed by THOMAS BONIAKOWSKI • ERA BONIAKOWSKI REAL ESTATE

Listing updated: Nov 3, 2026 at 08:36pm

Redfin checked: 3 minutes ago

•Source:CJMLS #2707321R

Payment calculator

$3,631 per month

Principal and interest$2,640

Property taxes

$917

HOA dues

Home insurance

$73

Utilities

Add

5 minutes to get started. No credit impact.

Affordability tools

See this home in person

Open houses

Sunday, Nov 8

1:00pm - 3:00pm

Nearby open houses (10)

OPEN THU, 11AM TO 1PM3D WALKTHROUGH
$1,389,000
5 beds4 baths— sq ft
100 Pine Grove Rd, Berkeley Heights, NJ 07922-1620
1.87 acre lot • 2 garage spots • Pool
OPEN THU, 5PM TO 7PM
$1,600,000
5 beds3 baths2,500 sq ft
114 Orchard St, Cranford, NJ 07016-1825
0.75 acre lot • Garage • Built 1914
OPEN SAT, 1PM TO 3PM
$460,000
2 beds2.5 baths— sq ft
498 Auten Rd, Hillsborough Township, NJ 08844-5055
$430 HOA • Garage • Community pool
OPEN SAT, 1PM TO 3PM
$819,000
3 beds2.5 baths— sq ft
19 Gregory Rd, Springfield, NJ 07081-3406
8,712 sq ft lot • 2 garage spots • Pool
OPEN SAT, 1PM TO 3PM
$819,000
4 beds3 baths— sq ft
20 Archbridge Ln, Springfield, NJ 07081-2746
0.33 acre lot • 2 garage spots • Built 1956
OPEN SAT, 2PM TO 4PM
$899,900
6 beds4 baths2,937 sq ft
15 Alexander Ct, South River, NJ 08882
9,570 sq ft lot • 2 garage spots • Built 1998
OPEN SUN TO 2AM
$425,000
5 beds2 baths1,675 sq ft
229 Greenbrook Rd, North Plainfield, NJ 07060
7,405 sq ft lot • Parking • Built 1955
OPEN SUN, 12PM TO 2PM
$949,900
4 beds2.5 baths— sq ft
33 Hughey Ln, Hillsborough, NJ 08844-5292
0.74 acre lot • 2 garage spots • Pool
OPEN SUN, 1PM TO 4PM
$694,500
3 beds2 baths1,840 sq ft
321 Libourel Rd, South Plainfield, NJ 07080
8,999 sq ft lot • 3 parking spots • Built 1959
OPEN SUN, 1PM TO 3PM
$699,000
4 beds1.5 baths1,800 sq ft
415 Plainfield Ave, Piscataway, NJ 08854
0.23 acre lot • 5 garage spots • Built 1926

Interested in buying?

Make a winning offer with the help of a local agent

Around this home

Schools

K - 12
Preschool & daycare

John P. Faber Elementary School

Public PreK-5 • Assigned • 0.5mi

6/10

Lincoln Middle School

Public 6-8 • Assigned • 0.2mi

4/10

Dunellen High School

Public 9-12 • Assigned • 0.2mi

3/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Market insights

521 Dunellen Ave · $489,900

DAYS ON MARKET

The average home goes pending in 74 days.

SALE-TO-LIST

Most homes are selling 1% above list price.

LIST PRICE

Median sale price in this area is $563,834. (15% higher than this home)

PRICE DROP

14% of homes in this area have had a price drop in the past month.

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Interior features
Entrance foyer
Library/office
Attic
Full basement with recreation room, storage space, laundry facilities, and a lavatory without a sink

Bedrooms
3 bedrooms

Bathrooms
1 full bathroom
1 half bathroom

Kitchen
Eat-in kitchen
Gas range/oven
Range
Refrigerator

Laundry & utility
Washer
Dryer

Flooring
Ceramic tile
Wood

Heating & cooling
Baseboard hot water heating
Steam radiators
Ceiling fans
Window unit cooling
Attic fan

Sale and tax history for 521 Dunellen Ave

Sale History
Tax History

Date

Event

Price

GSMLS #4062689

Nov 3, 2026

Listed

$489,900

$351/sq ft

+34

CJMLS #2707321R

Nov 3, 2026

Listed

$489,900

$351/sq ft

CJMLS #1902838

Dec 19, 2018

Sold

$250,000

$179/sq ft

Nov 13, 2018

Delisted

—

Nov 12, 2018

Contingent

—

Sep 24, 2018

Price Changed

$256,900

$184/sq ft

Sep 6, 2018

Price Changed

$269,900

$193/sq ft

Aug 17, 2018

Price Changed

$274,900

$197/sq ft

Jul 30, 2018

Listed

$284,900

$204/sq ft

+11

GSMLS #3490917

Dec 19, 2018

Sold

$250,000

$179/sq ft

Nov 13, 2018

Delisted

—

Sep 24, 2018

Price Changed

$256,900

$184/sq ft

Sep 6, 2018

Price Changed

$269,900

$193/sq ft

Aug 17, 2018

Price Changed

$274,900

$197/sq ft

Jul 30, 2018

Listed

$284,900

$204/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$11,001 (+0.5%)

$106,800 + $414,500

$521,300

2024

$10,950 (+4.7%)

$106,800 + $342,600

$449,400

2023

$10,456 (+12.8%)

$106,800 + $329,800

$436,600

2022

$9,269 (+8.2%)

$106,800 + $279,300

$386,100

2021

$8,563 (+5.0%)

$106,800 + $228,900

$335,700

2020

$8,152 (+4.7%)

$106,800 + $168,700

$275,500

2019

$7,789 (−1.8%)

$118,500 + $132,500

$251,000

2018

$7,928 (+4.2%)

$118,500 + $132,500

$251,000

2017

$7,608 (+3.8%)

$23,800 + $34,900

$58,700

2016

$7,329 (+4.8%)

$23,800 + $34,900

$58,700

2014

$6,995 (+1.2%)

$23,800 + $34,900

$58,700

2013

$6,910 (+1.4%)

$23,800 + $34,900

$58,700

2011

$6,813 (+2.7%)

$23,800 + $34,900

$58,700

2010

$6,631 (+3.8%)

$23,800 + $34,900

$58,700

2009

$6,388

$23,800 + $34,900

$58,700

Public record

Beds

—

Baths

—

Stories

Lot width

50 ft.

Lot depth

150 ft.

Lot size

7,501 Sq. Ft.

Year renovated

—

Finished Sq. Ft.

1,395

Unfinished Sq. Ft.

—

Total Sq. Ft.

1,395

Year built

1928

Style

Single Family Residential

County

Middlesex County

APN

0300035 00006

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 19, 2026.

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, 16 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

92/ 100

Exceptional sunlight

Sunscore

This home receives average direct sun exposure in Dunellen. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.4 hrs

5.5 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 521 Dunellen Ave

$498,518

$8,618 over list price of $490K

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $445K to $565K.

SOLD OCT 22, 2026
$560,000 Last sold price
3 beds1.5 baths1,216 sq ft
214 Madison Ave, Dunellen, NJ 08812
$110/sq ft
25 years older
SOLD MAY 22, 2026
$475,000 Last sold price
2 beds1 bath— sq ft
733 3rd St, Dunellen, NJ 08812
23 years newer
SOLD MAY 4, 2026
$502,000 Last sold price
3 beds2 baths1,518 sq ft
220 1st St, Dunellen, NJ 08812
$20/sq ft
larger lot
13 years older
SOLD AUG 7, 2026
$565,000 Last sold price
3 beds2 baths1,500 sq ft
729 Walnut St, Dunellen, NJ 08812
$26/sq ft
larger lot
37 years newer
SOLD MAR 9, 2026
$500,000 Last sold price
3 beds1 bath1,111 sq ft
539 Mountainview Ter, Dunellen, NJ 08812
$99/sq ft
larger lot
12 years newer
SOLD DEC 17, 2025
$445,000 Last sold price
3 beds1 bath1,305 sq ft
518 2nd St, Dunellen, NJ 08812
$10/sq ft
21 years newer

Rental earnings

Est. $2,273 per month, based on comparable rentals

Tour for free, no strings attached

Takes about 5 minutes & won’t affect your credit

Ask a question

(732) 561-4347