Google street view image for 34 Mercer St, Princeton, NJ 08540

Off market oct 1989 for $600K

$1,475,358

Est. refi paymentEst. refi $3,955/mo

—

•

— ba

•

3,872

sq ft

34 Mercer St, Princeton, NJ 08540

About this home

34 Mercer St is a 3,872 square foot house on a 0.26 acre lot. - it last sold on October 26, 1989 for $600,000. Based on Redfin's Princeton data, we estimate the home's value is $1,475,358.

Single-familyProperty Type

1900Year Built

0.26 acresLot Size

$381Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,475,358

$875K since sold in October 1989$31K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 22.3% lower than the average sale price ($1.90M) of 5 comparable homes.

SOLD SEP 18, 2026
$1,350,000
A
4 beds3 baths2,163 sq ft
76 Alexander St, Princeton, NJ 08540
SOLD JUN 30, 2026
$1,999,000
B
4 beds4.5 baths3,336 sq ft
134 Moore St, Princeton, NJ 08540
SOLD JUL 10, 2026
$2,100,000
C
6 beds5.5 baths3,309 sq ft
274 Nassau St, Princeton, NJ 08540
SOLD AUG 17, 2026
$1,050,000
D
4 beds2 baths2,386 sq ft
78 Alexander St, Princeton, NJ 08540
SOLD JUL 27, 2026
$3,000,000
E
5 beds4.5 baths4,314 sq ft
155 Hodge Rd, Princeton, NJ 08540

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Earn from this home

Sell

$1,388,588

Est. take-home

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Est. cash available

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Market trends in 08540, NJ

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.6%

0.4% MoM

Median sale price

$995K

$55K MoM

Avg. days on market

54d

11 days MoM

Recently sold homes

136

29 MoM

New listings for sale

OPEN TODAY, 1PM TO 3PM
$519,000
2 beds2.5 baths1,293 sq ft
37 Ketley Pl, Princeton, NJ 08540
(609) 921-1411
$755,000
3 beds2.5 baths— sq ft
79 Cherry Brook Dr, Princeton, NJ 08540-7710
$399,000
1 bed1.5 baths1,263 sq ft
2202 Windrow Dr, Princeton, NJ 00000
(609) 520-3700
$599,000
3 beds2 baths1,082 sq ft
151 Washington Rd, Princeton, NJ 08540
$569,900
2 beds2.5 baths1,634 sq ft
19 Hoover Ave, Princeton, NJ 08540
(609) 924-6550
$1,700,000
4 beds4 baths3,819 sq ft
37 Governors Ln, Princeton, NJ 08540
(609) 921-1050
VIDEO TOUR
$649,900
3 beds2.5 baths1,896 sq ft
103 Creststone Cir, Princeton, NJ 08540
(866) 201-6210
OPEN TODAY, 1:30PM TO 4PM
$979,900
4 beds3.5 baths2,718 sq ft
41 Treetops Cir, Princeton, NJ 08540-8585
$799,000
2 beds1 bath868 sq ft
19 Dorann Ave, Princeton, NJ 08540
(609) 259-0200
$750,000
4 beds2.5 baths2,093 sq ft
236 State Rd, Princeton, NJ 08540
(609) 921-1050
See all

Provided by Redfin

Sale history for 34 Mercer St

Year

Property tax

Land + Additions

Assessment*

2025

$18,207 (+2.6%)

$273,000 + $393,200

$666,200

2024

$17,741 (+5.9%)

$273,000 + $393,200

$666,200

2023

$16,748 (+3.4%)

$273,000 + $393,200

$666,200

2022

$16,202 (−0.3%)

$273,000 + $393,200

$666,200

2021

$16,249 (−49.6%)

$273,000 + $393,200

$666,200

2020

$32,242 (+7.7%)

$546,000 + $786,300

$1,332,300

2019

$29,939 (+1.7%)

$546,000 + $786,300

$1,332,300

2018

$29,435 (+1.4%)

$481,000 + $781,200

$1,262,200

2017

$29,031 (+1.6%)

$481,000 + $781,200

$1,262,200

2016

$28,576 (+3.6%)

$481,000 + $781,200

$1,262,200

2014

$27,579 (+2.5%)

$481,000 + $781,200

$1,262,200

2013

$26,897 (+1.2%)

$481,000 + $781,200

$1,262,200

2012

$26,569 (+3.1%)

$481,000 + $781,200

$1,262,200

2011

$25,762 (+0.7%)

$481,000 + $781,200

$1,262,200

2010

$25,572 (−22.8%)

$481,000 + $781,200

$1,262,200

2009

$33,136

$481,000 + $781,200

$1,262,200

Tax history for 34 Mercer St

Year

Property tax

Land + Additions

Assessment*

2025

$18,207 (+2.6%)

$273,000 + $393,200

$666,200

2024

$17,741 (+5.9%)

$273,000 + $393,200

$666,200

2023

$16,748 (+3.4%)

$273,000 + $393,200

$666,200

2022

$16,202 (−0.3%)

$273,000 + $393,200

$666,200

2021

$16,249 (−49.6%)

$273,000 + $393,200

$666,200

2020

$32,242 (+7.7%)

$546,000 + $786,300

$1,332,300

2019

$29,939 (+1.7%)

$546,000 + $786,300

$1,332,300

2018

$29,435 (+1.4%)

$481,000 + $781,200

$1,262,200

2017

$29,031 (+1.6%)

$481,000 + $781,200

$1,262,200

2016

$28,576 (+3.6%)

$481,000 + $781,200

$1,262,200

2014

$27,579 (+2.5%)

$481,000 + $781,200

$1,262,200

2013

$26,897 (+1.2%)

$481,000 + $781,200

$1,262,200

2012

$26,569 (+3.1%)

$481,000 + $781,200

$1,262,200

2011

$25,762 (+0.7%)

$481,000 + $781,200

$1,262,200

2010

$25,572 (−22.8%)

$481,000 + $781,200

$1,262,200

2009

$33,136

$481,000 + $781,200

$1,262,200

*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
Construction Type: Frame
Exterior Wall: Frame

Property Information
Living Sq. Ft: 3,872
# of Stories: 2
Legal Description: B-41,L-13

Parking & Garage Information
# of Parking Spaces: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 11,313
Legal Lot Number: 13
Legal Block Number: 41.01
Municipality Name: PRINCETON
Acres: 0.2597
Depth Footage: 202
Front Footage: 56
Zoning Code: R3MP
State Use Description: RESIDENTIAL

Financial

Assessor Information
Assessment Year: 2026
Tax District County: PRINCETON

Public facts

Beds: —
Baths: —
Sq. Ft.: 3,872
Stories: 2.0
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1900
Year Renovated: —
County: Mercer County
APN: 1400041 0100013

Home facts updated by county records on Oct 16, 2026

Around this home

Schools

Johnson Park School

Public PreK-5 • Assigned • 1.1mi

8/10

J Witherspoon Middle School

Public 6-8 • Assigned • 1.1mi

9/10

Princeton High School

Public 9-12 • Assigned • 0.8mi

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

6/10 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

6 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Princeton, NJ • 08540

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

$1.40M – $1.70M

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New listings for sale in 08540

OPEN TODAY, 1PM TO 3PM

$519,000

2 beds2.5 baths1,293 sq ft

37 Ketley Pl, Princeton, NJ 08540

(609) 921-1411

$755,000

3 beds2.5 baths— sq ft

79 Cherry Brook Dr, Princeton, NJ 08540-7710

$399,000

1 bed1.5 baths1,263 sq ft

2202 Windrow Dr, Princeton, NJ 00000

(609) 520-3700

$599,000

3 beds2 baths1,082 sq ft

151 Washington Rd, Princeton, NJ 08540

$569,900

2 beds2.5 baths1,634 sq ft

19 Hoover Ave, Princeton, NJ 08540

(609) 924-6550

$1,700,000

4 beds4 baths3,819 sq ft

37 Governors Ln, Princeton, NJ 08540

(609) 921-1050

VIDEO TOUR

$649,900

3 beds2.5 baths1,896 sq ft

103 Creststone Cir, Princeton, NJ 08540

(866) 201-6210

OPEN TODAY, 1:30PM TO 4PM

$979,900

4 beds3.5 baths2,718 sq ft

41 Treetops Cir, Princeton, NJ 08540-8585

$799,000

2 beds1 bath868 sq ft

19 Dorann Ave, Princeton, NJ 08540

(609) 259-0200

Home values near 34 Mercer St

Data from public records.

Address	Redfin Estimate
26 Mercer Street, Princeton, NJ - Beds \| - Baths \| 2812 Sq. Ft.	$1,761,149
36 Mercer Street, Princeton, NJ 5 Beds \| 3.5 Baths \| - Sq. Ft.	$2,585,170

Address	Redfin Estimate
42 Mercer Street, Princeton, NJ - Beds \| - Baths \| 3010 Sq. Ft.	$1,648,694
28 Mercer Street, Princeton, NJ - Beds \| - Baths \| 2821 Sq. Ft.	$1,852,875

Address	Redfin Estimate
40 Mercer Street, Princeton, NJ 3 Beds \| 5 Baths \| - Sq. Ft.	$1,844,804
32 Mercer Street, Princeton, NJ - Beds \| - Baths \| 2380 Sq. Ft.	$838,308

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