Google street view image for 9 Prospect St, Mendham, NJ 07945

Off market feb 2000 for $300K

$912,756

Est. refi paymentEst. refi $1,944/mo

—

•

— ba

•

3,112

sq ft

9 Prospect St, Mendham, NJ 07945

About this home

9 Prospect St is a 3,112 square foot house on a 0.31 acre lot. - it last sold on February 23, 2000 for $300,000. Based on Redfin's Mendham data, we estimate the home's value is $912,756.

Single-familyProperty Type

1920Year Built

0.31 acresLot Size

$293Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$912,756

$613K since sold in February 2000$3,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 16.9% lower than the average sale price ($1.10M) of 6 comparable homes.

SOLD AUG 28, 2026
7 Cosma Pl, Mendham, NJ 07945-1305
$1,175,000
A
4 beds2.5 baths— sq ft
7 Cosma Pl, Mendham, NJ 07945-1305
SOLD MAY 12, 2026
$1,342,500
B
4 beds4 baths— sq ft
3 New St, Mendham, NJ 07945-1207
SOLD SEP 23, 2026
$610,000
C
3 beds1 bath— sq ft
48 Mountain Ave, Mendham, NJ 07945-1400
SOLD SEP 30, 2026
$1,249,900
D
4 beds3 baths— sq ft
6 Heather Hill Way, Mendham, NJ 07945-1231
SOLD AUG 5, 2026
$910,000
E
4 beds3 baths— sq ft
4 Hillcrest Ave, Mendham, NJ 07945
SOLD MAY 20, 2026
$1,300,000
F
4 beds5 baths— sq ft
48 Maple Ave, Mendham, NJ 07945-1320

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Earn from this home

Sell

$816,279

Est. take-home

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Est. cash available

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Market trends in 07945, NJ

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

103.7%

1.0% MoM

Median sale price

$1.2M

$85K MoM

Avg. days on market

14d

1 days MoM

Recently sold homes

4 MoM

New listings for sale

$1,795,000
4 beds4.5 baths— sq ft
1 Beach Ln, Mendham, NJ 07945-2944
$699,000
3 beds1.5 baths1,420 sq ft
79 W Main St W, Mendham, NJ 07945
See all

Provided by Redfin

Sale history for 9 Prospect St

Year

Property tax

Land + Additions

Assessment*

2026

$15,102 (+5.4%)

$301,000 + $266,300

$567,300

2025

$14,330 (+2.7%)

$301,000 + $266,300

$567,300

2024

$13,956 (+2.0%)

$301,000 + $266,300

$567,300

2023

$13,688 (+2.9%)

$301,000 + $266,300

$567,300

2022

$13,298 (+1.8%)

$301,000 + $256,800

$557,800

2021

$13,064 (+1.8%)

$301,000 + $256,800

$557,800

2020

$12,835 (+2.4%)

$301,000 + $256,800

$557,800

2019

$12,534 (+1.4%)

$301,000 + $256,800

$557,800

2018

$12,355 (+1.5%)

$301,000 + $256,800

$557,800

2017

$12,177 (+3.1%)

$301,000 + $256,800

$557,800

2016

$11,808 (+5.0%)

$301,000 + $256,800

$557,800

2014

$11,245 (+3.0%)

$301,000 + $256,800

$557,800

2013

$10,916 (+2.0%)

$301,000 + $256,800

$557,800

2012

$10,699 (+0.5%)

$301,000 + $256,800

$557,800

2011

$10,643 (+0.5%)

$301,000 + $256,800

$557,800

2010

$10,593 (+1.2%)

$301,000 + $256,800

$557,800

2009

$10,471

$301,000 + $256,800

$557,800

Tax history for 9 Prospect St

Year

Property tax

Land + Additions

Assessment*

2026

$15,102 (+5.4%)

$301,000 + $266,300

$567,300

2025

$14,330 (+2.7%)

$301,000 + $266,300

$567,300

2024

$13,956 (+2.0%)

$301,000 + $266,300

$567,300

2023

$13,688 (+2.9%)

$301,000 + $266,300

$567,300

2022

$13,298 (+1.8%)

$301,000 + $256,800

$557,800

2021

$13,064 (+1.8%)

$301,000 + $256,800

$557,800

2020

$12,835 (+2.4%)

$301,000 + $256,800

$557,800

2019

$12,534 (+1.4%)

$301,000 + $256,800

$557,800

2018

$12,355 (+1.5%)

$301,000 + $256,800

$557,800

2017

$12,177 (+3.1%)

$301,000 + $256,800

$557,800

2016

$11,808 (+5.0%)

$301,000 + $256,800

$557,800

2014

$11,245 (+3.0%)

$301,000 + $256,800

$557,800

2013

$10,916 (+2.0%)

$301,000 + $256,800

$557,800

2012

$10,699 (+0.5%)

$301,000 + $256,800

$557,800

2011

$10,643 (+0.5%)

$301,000 + $256,800

$557,800

2010

$10,593 (+1.2%)

$301,000 + $256,800

$557,800

2009

$10,471

$301,000 + $256,800

$557,800

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

Property details

Exterior

Property Information
Living Sq. Ft: 3,112
# of Stories: 2

Parking & Garage Information
# of Parking Spaces: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 13,504
Legal Lot Number: 12
Legal Block Number: 1902
Municipality Name: MENDHAM BORO
Acres: 0.31
Depth Footage: 266
Front Footage: 50
Zoning Code: 1/4A
State Use Description: RESIDENTIAL

Financial

Assessor Information
Assessment Year: 2026
Tax District County: MENDHAM BOROUGH

Public facts

Beds: —
Baths: —
Sq. Ft.: 3,112
Stories: 2.0
Lot Size: 0.31 acres
Style: Single Family Residential
Year Built: 1920
Year Renovated: —
County: Morris County
APN: 1801902 00012

Home facts updated by county records on Oct 8, 2026

Around this home

Schools

K - 12
Preschool & daycare

Hilltop School

Public PreK-4 • Assigned • 0.2mi

7/10

Mountain View Middle School

Public 5-8 • Assigned • 0.5mi

9/10

West Morris Mendham High School

Public 9-12 • Assigned • 0.5mi

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 96° 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

Mendham, NJ • 07945

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

8.6 hrs

4.1 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$868,000 – $1.05M

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Home values near 9 Prospect St

Data from public records.

Address	Redfin Estimate
12 Prospect St, Mendham, NJ - Beds \| - Baths \| 1936 Sq. Ft.	$731,605
4 Prospect St, Mendham, NJ 5 Beds \| 4 Baths \| - Sq. Ft.	$1,461,021
6 Prospect St, Mendham, NJ 5 Beds \| 3 Baths \| - Sq. Ft.	$1,246,711
13 Prospect St, Mendham, NJ - Beds \| - Baths \| 1304 Sq. Ft.	$771,072
11 Prospect St, Mendham, NJ 5 Beds \| 6 Baths \| - Sq. Ft.	$1,480,821
19 Hilltop Rd, Mendham, NJ - Beds \| - Baths \| 3170 Sq. Ft.	$1,191,781
8 New St, Mendham, NJ - Beds \| - Baths \| 2477 Sq. Ft.	$814,441

Address	Redfin Estimate
10 Prospect St, Mendham, NJ 1 Beds \| 1 Baths \| - Sq. Ft.	$674,463
2 Prospect St, Mendham, NJ 3 Beds \| 2.5 Baths \| - Sq. Ft.	$1,027,511
16A Prospect St, Mendham, NJ - Beds \| - Baths \| 2536 Sq. Ft.	$1,418,960
7 Prospect St, Mendham, NJ - Beds \| - Baths \| 2336 Sq. Ft.	$841,989
3 Prospect St, Mendham, NJ - Beds \| - Baths \| 2892 Sq. Ft.	$1,130,992
12 New St, Mendham, NJ - Beds \| - Baths \| 960 Sq. Ft.	$620,126
11 New St, Mendham, NJ 4 Beds \| 2.5 Baths \| - Sq. Ft.	$1,205,177

Address	Redfin Estimate
14 Prospect St, Mendham, NJ - Beds \| - Baths \| 4719 Sq. Ft.	$1,619,049
8 Prospect St, Mendham, NJ 4 Beds \| 2.5 Baths \| - Sq. Ft.	$967,579
16 Prospect St, Mendham, NJ 6 Beds \| 6 Baths \| - Sq. Ft.	$2,507,607
5 Prospect St, Mendham, NJ 4 Beds \| 2.5 Baths \| - Sq. Ft.	$1,204,649
1 Prospect St, Mendham, NJ 4 Beds \| 2.5 Baths \| - Sq. Ft.	$1,341,136
14 New St, Mendham, NJ 4 Beds \| 2 Baths \| - Sq. Ft.	$979,945
17 Hilltop Rd, Mendham, NJ 5 Beds \| 3.5 Baths \| - Sq. Ft.	$1,253,187

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