Google street view image for 1257 Knollwood Rd, Mountainside, NJ 07092

Off market nov 2004 for $476K

$1,040,895

Est. refi paymentEst. refi $3,178/mo

—

•

— ba

•

2,360

sq ft

1257 Knollwood Rd, Mountainside, NJ 07092

About this home

1257 Knollwood Rd is a 2,360 square foot house on a 0.28 acre lot. - it last sold on November 08, 2004 for $476,000. Based on Redfin's Mountainside data, we estimate the home's value is $1,040,895.

Single-familyProperty Type

1953Year Built

0.28 acresLot Size

$441Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,040,895

$565K since sold in November 2004$15K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.3% lower than the average sale price ($1.11M) of 6 comparable homes.

SOLD AUG 28, 2026
$850,000
A
3 beds2 baths— sq ft
1399 Birch Hill Rd, Mountainside, NJ 07092-1831
SOLD JUL 22, 2026
$999,999
B
5 beds3 baths— sq ft
248 Appletree Ln, Mountainside, NJ 07092-1702
SOLD MAY 22, 2026
$1,080,000
C
4 beds2.5 baths— sq ft
1438 Dunn Pkwy, Mountainside, NJ 07092-2501
SOLD AUG 14, 2026
$890,000
D
4 beds2 baths— sq ft
336 Darby Ln, Mountainside, NJ 07092-2110
SOLD SEP 15, 2026
$1,085,000
E
4 beds3.5 baths— sq ft
1179 Blazo Ter, Mountainside, NJ 07092-2214
SOLD MAY 15, 2026
$1,761,800
F
3 beds2.5 baths— sq ft
130 Greenwood Rd, Mountainside, NJ 07092-2505

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Earn from this home

Sell

$830,063

Est. take-home

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Refinance

Est. cash available

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Market trends in 07092, NJ

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.0%

4.2% MoM

Median sale price

$1.0M

$33K MoM

Avg. days on market

26d

4 days MoM

Recently sold homes

5 MoM

New listings for sale

$599,000
3 beds2 baths— sq ft
166 Locust Ave, Mountainside, NJ 07092-2608
$999,000
4 beds3.5 baths— sq ft
310 Old Grove Rd, Mountainside, NJ 07092-2118
$899,000
3 beds3 baths— sq ft
351 Old Tote Rd, Mountainside, NJ 07092-1838
OPEN SUN, 1PM TO 3PM
$1,750,000
5 beds3 baths4,063 sq ft
355 Ackerman St, Mountainside, NJ 07092-1313
EARLY ACCESS
$1,099,000
3 beds3 baths1,850 sq ft
1137 Saddlebrook Rd, Mountainside, NJ 07092
OPEN SUN, 1PM TO 4PM
$950,000
3 beds2 baths— sq ft
317 Old Tote Rd, Mountainside, NJ 07092-1835
See all

Provided by Redfin

Sale history for 1257 Knollwood Rd

Year

Property tax

Land + Additions

Assessment*

2025

$13,234 (+2.4%)

$267,200 + $363,000

$630,200

2024

$12,919 (+3.1%)

$267,200 + $363,000

$630,200

2023

$12,528 (−0.5%)

$267,200 + $363,000

$630,200

2022

$12,585 (+1.7%)

$267,200 + $363,000

$630,200

2021

$12,377 (+22.1%)

$267,200 + $363,000

$630,200

2020

$10,135 (−0.5%)

$267,200 + $363,000

$630,200

2019

$10,188 (−0.2%)

$52,200 + $83,400

$135,600

2018

$10,208 (+0.7%)

$52,200 + $83,400

$135,600

2017

$10,133 (+2.3%)

$52,200 + $83,400

$135,600

2016

$9,902 (+8.4%)

$52,200 + $83,400

$135,600

2014

$9,134 (+4.5%)

$52,200 + $83,400

$135,600

2013

$8,737 (+4.3%)

$52,200 + $83,400

$135,600

2012

$8,375 (+24.8%)

$52,200 + $83,400

$135,600

2011

$6,709 (+3.6%)

$52,200 + $83,400

$135,600

2010

$6,476 (+6.0%)

$52,200 + $62,900

$115,100

2009

$6,112

$52,200 + $62,900

$115,100

Tax history for 1257 Knollwood Rd

Year

Property tax

Land + Additions

Assessment*

2025

$13,234 (+2.4%)

$267,200 + $363,000

$630,200

2024

$12,919 (+3.1%)

$267,200 + $363,000

$630,200

2023

$12,528 (−0.5%)

$267,200 + $363,000

$630,200

2022

$12,585 (+1.7%)

$267,200 + $363,000

$630,200

2021

$12,377 (+22.1%)

$267,200 + $363,000

$630,200

2020

$10,135 (−0.5%)

$267,200 + $363,000

$630,200

2019

$10,188 (−0.2%)

$52,200 + $83,400

$135,600

2018

$10,208 (+0.7%)

$52,200 + $83,400

$135,600

2017

$10,133 (+2.3%)

$52,200 + $83,400

$135,600

2016

$9,902 (+8.4%)

$52,200 + $83,400

$135,600

2014

$9,134 (+4.5%)

$52,200 + $83,400

$135,600

2013

$8,737 (+4.3%)

$52,200 + $83,400

$135,600

2012

$8,375 (+24.8%)

$52,200 + $83,400

$135,600

2011

$6,709 (+3.6%)

$52,200 + $83,400

$135,600

2010

$6,476 (+6.0%)

$52,200 + $62,900

$115,100

2009

$6,112

$52,200 + $62,900

$115,100

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

Zoning

R-2

Single-Family Residence District

This zoning district is limited to single family residential use.

Property details

Exterior

Exterior Information
Exterior Wall: Frame

Property Information
Subdivision Name: MOUNTAINSIDE
Living Sq. Ft: 2,360
# of Stories: 1.5

Parking & Garage Information
# of Parking Spaces: 1
Parking Type: Undefined Type - 1 Car Garage
Garage / Carport Type: Undefined Type - 1 Car

Lot Information
# of Buildings: 1
Land Sq. Ft: 12,066
Legal Lot Number: 90
Legal Block Number: 16.11
Municipality Name: MOUNTAINSIDE BORO
Acres: 0.277
Zoning Code: R-2
State Use Description: RESIDENTIAL

Financial

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

Public facts

Beds: —
Baths: —
Sq. Ft.: 2,360
Stories: 1.5
Lot Size: 0.28 acres
Style: Single Family Residential
Year Built: 1953
Year Renovated: —
County: Union County
APN: 1000016 1100090

Home facts updated by county records on Jul 14, 2026

Around this home

Schools

Deerfield Elementary School

Public 3-8 • Assigned • 0.2mi

8/10

Governor Livingston High School

Public 9-12 • Assigned • 1.9mi

8/10

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 102° expected this year, 15 days in 30 years

6/10 Wind Factor

27% 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

Mountainside, NJ • 07092

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 8.6 hours in June and 4.2 hours in December, placing it below the U.S. average for solar exposure.

8.6 hrs

4.2 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$989,000 – $1.20M

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Nearby similar homes

$599,000

3 beds2 baths— sq ft

166 Locust Ave, Mountainside, NJ 07092-2608

$1,475,000

5 beds5 baths— sq ft

136 Irwin St, Springfield, NJ 07081-3436

FOR SALE BY OWNER

$925,000

4 beds3 baths2,100 sq ft

155 Parkway, Mountainside, NJ 07092

$3,199,000

6 beds7.5 baths— sq ft

2 Barchester Way, Westfield, NJ 07090-3704

3D WALKTHROUGH

$1,799,900

5 beds4.5 baths— sq ft

22 Trails End Ct, Westfield, NJ 07090-3750

3D WALKTHROUGH

$850,000

4 beds2 baths— sq ft

828 North Ave W, Westfield, NJ 07090

New listings for sale in 07092-2608

$599,000

3 beds2 baths— sq ft

166 Locust Ave, Mountainside, NJ 07092-2608

$999,000

4 beds3.5 baths— sq ft

310 Old Grove Rd, Mountainside, NJ 07092-2118

$899,000

3 beds3 baths— sq ft

351 Old Tote Rd, Mountainside, NJ 07092-1838

OPEN SUN, 1PM TO 3PM

$1,750,000

5 beds3 baths4,063 sq ft

355 Ackerman St, Mountainside, NJ 07092-1313

EARLY ACCESSCOLDWELL BANKER REALTY COMING SOON

$1,099,000

3 beds3 baths1,850 sq ft

1137 Saddlebrook Rd, Mountainside, NJ 07092

OPEN SUN, 1PM TO 4PM

$950,000

3 beds2 baths— sq ft

317 Old Tote Rd, Mountainside, NJ 07092-1835

Home values near 1257 Knollwood Rd

Data from public records.

Address	Redfin Estimate
1277 Knollwood Road, Mountainside, NJ 4 Beds \| 2 Baths \| - Sq. Ft.	$1,471,849
1263 Knollwood Road, Mountainside, NJ - Beds \| - Baths \| 1610 Sq. Ft.	$813,587

Address	Redfin Estimate
1281 Knollwood Road, Mountainside, NJ - Beds \| - Baths \| 1610 Sq. Ft.	$892,519
1253 Knollwood Road, Mountainside, NJ - Beds \| - Baths \| 2464 Sq. Ft.	$1,252,890

Address	Redfin Estimate
1251 Knollwood Road, Mountainside, NJ 3 Beds \| 1 Baths \| - Sq. Ft.	$772,500
1278 Knollwood Road, Mountainside, NJ 4 Beds \| 2 Baths \| - Sq. Ft.	$961,681

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