Google street view image for 505 Mercer Rd, Princeton, NJ 08540

Off market oct 1988 for $570K

$2,065,249

Est. refi paymentEst. refi $3,796/mo

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•

— ba

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2,929

sq ft

505 Mercer Rd, Princeton, NJ 08540

About this home

505 Mercer Rd is a 2,929 square foot house on a 1.91 acre lot. - it last sold on October 28, 1988 for $570,000. Based on Redfin's Princeton data, we estimate the home's value is $2,065,249.

Single-familyProperty Type

1880Year Built

1.91 acresLot Size

$705Est. Price/Sq.Ft.

3 spacesParking

Source:Public Records

Redfin Estimate

$2,065,249

$1.5M since sold in October 1988$34K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.1% higher than the average sale price ($2.04M) of 6 comparable homes.

SOLD JUN 15, 2026
$1,825,000
A
4 beds3.5 baths3,183 sq ft
280 Edgerstoune Rd, Princeton, NJ 08540
SOLD SEP 18, 2026
$1,350,000
B
4 beds3 baths2,163 sq ft
76 Alexander St, Princeton, NJ 08540
SOLD JUN 30, 2026
$1,999,000
C
4 beds4.5 baths3,336 sq ft
134 Moore St, Princeton, NJ 08540
SOLD MAY 22, 2026
$2,250,000
D
4 beds3.5 baths2,979 sq ft
189 Constitution Dr, Princeton, NJ 08540
SOLD APR 2, 2026
$1,830,000
E
4 beds3.5 baths3,321 sq ft
186 Lambert Dr, Princeton, NJ 08540
SOLD JUL 27, 2026
$3,000,000
F
5 beds4.5 baths4,314 sq ft
155 Hodge Rd, Princeton, NJ 08540

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Earn from this home

Sell

$1,944,619

Est. take-home

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Refinance

Est. cash available

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Rent

$6,339/mo

Redfin rental estimate

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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

101.9%

+0.4% MoM

Median sale price

$1.1M

$88K MoM

Avg. days on market

43d

4 days MoM

Recently sold homes

165

9 MoM

New listings for sale

NEW 21 HRS AGO
$5,799,000
6 beds9 baths12,517 sq ft
Princeton, NJ 08540
(609) 436-5221
3D WALKTHROUGH
$1,395,000
4 beds3 baths3,975 sq ft
24 Buckingham Dr, Princeton, NJ 08540
(609) 921-1050
$1,425,000
3 beds2.5 baths1,976 sq ft
370 Franklin Ave, Princeton, NJ 08540
(609) 921-1050
$1,950,000
5 beds4.5 baths3,453 sq ft
19 Pardoe Rd, Princeton, NJ 08540
(609) 921-1050
$469,000
2 beds2 baths1,210 sq ft
114 Cascade Ct #2, Princeton, NJ 08540
(267) 765-2080
$1,549,900
4 beds4.5 baths5,830 sq ft
16 Benedek Rd, Princeton, NJ 08540
(609) 921-1411
$388,000
2 beds1 bath1,008 sq ft
304 Trinity Ct #9, Princeton, NJ 08540
(609) 924-1600
$899,000
5 beds2.5 baths2,415 sq ft
228 State Rd, Princeton, NJ 08540
(609) 987-8889
3D WALKTHROUGH
$1,868,000
5 beds4 baths3,343 sq ft
60 Battle Rd, Princeton, NJ 08540
(609) 924-1600
$419,000
2 beds2 baths1,210 sq ft
107 Lassen Ct #12, Princeton, NJ 08540
(609) 924-5353
See all

Provided by Redfin

Sale history for 505 Mercer Rd

Year

Property tax

Land + Additions

Assessment*

2025

$36,234 (+2.6%)

$693,300 + $632,500

$1,325,800

2024

$35,306 (+5.9%)

$693,300 + $632,500

$1,325,800

2023

$33,331 (+5.5%)

$693,300 + $632,500

$1,325,800

2022

$31,587 (−0.3%)

$693,300 + $605,500

$1,298,800

2021

$31,678 (+0.8%)

$693,300 + $605,500

$1,298,800

2020

$31,431 (+2.0%)

$693,300 + $605,500

$1,298,800

2019

$30,808 (+1.7%)

$693,300 + $605,500

$1,298,800

2018

$30,288 (+1.4%)

$693,300 + $605,500

$1,298,800

2017

$29,872 (+1.6%)

$693,300 + $605,500

$1,298,800

2016

$29,404 (+3.6%)

$693,300 + $605,500

$1,298,800

2014

$28,378 (+2.5%)

$693,300 + $605,500

$1,298,800

2013

$27,677 (+4.2%)

$693,300 + $605,500

$1,298,800

2012

$26,560 (+4.1%)

$693,300 + $605,500

$1,298,800

2011

$25,521 (+1.4%)

$693,300 + $605,500

$1,298,800

2010

$25,158 (+6.9%)

$693,300 + $605,500

$1,298,800

2009

$23,531

$693,300 + $605,500

$1,298,800

Tax history for 505 Mercer Rd

Year

Property tax

Land + Additions

Assessment*

2025

$36,234 (+2.6%)

$693,300 + $632,500

$1,325,800

2024

$35,306 (+5.9%)

$693,300 + $632,500

$1,325,800

2023

$33,331 (+5.5%)

$693,300 + $632,500

$1,325,800

2022

$31,587 (−0.3%)

$693,300 + $605,500

$1,298,800

2021

$31,678 (+0.8%)

$693,300 + $605,500

$1,298,800

2020

$31,431 (+2.0%)

$693,300 + $605,500

$1,298,800

2019

$30,808 (+1.7%)

$693,300 + $605,500

$1,298,800

2018

$30,288 (+1.4%)

$693,300 + $605,500

$1,298,800

2017

$29,872 (+1.6%)

$693,300 + $605,500

$1,298,800

2016

$29,404 (+3.6%)

$693,300 + $605,500

$1,298,800

2014

$28,378 (+2.5%)

$693,300 + $605,500

$1,298,800

2013

$27,677 (+4.2%)

$693,300 + $605,500

$1,298,800

2012

$26,560 (+4.1%)

$693,300 + $605,500

$1,298,800

2011

$25,521 (+1.4%)

$693,300 + $605,500

$1,298,800

2010

$25,158 (+6.9%)

$693,300 + $605,500

$1,298,800

2009

$23,531

$693,300 + $605,500

$1,298,800

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

Property details

Exterior

Exterior Information
Construction Type: Brick
Exterior Wall: Brick

Property Information
Subdivision Name: TOWNSHIP/PRINCETON
Living Sq. Ft: 2,929
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 83,200
Legal Lot Number: 14
Legal Block Number: 9901
Municipality Name: PRINCETON
Acres: 1.91
Zoning Code: R3
State Use Description: RESIDENTIAL

Financial

Assessor Information
Assessment Year: 2026
Tax District County: PRINCETON

Public facts

Beds: —
Baths: —
Sq. Ft.: 2,929
Stories: 2.0
Lot Size: 1.91 acres
Style: Single Family Residential
Year Built: 1880
Year Renovated: —
County: Mercer County
APN: 1409901 00014

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Johnson Park School

Public PreK-5 • Assigned • 1.3mi

8/10

J Witherspoon Middle School

Public 6-8 • Assigned • 2.4mi

9/10

Princeton High School

Public 9-12 • Assigned • 2.1mi

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

8.7 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.96M – $2.38M

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Nearby similar homes

$1,100,000

4 beds2 baths2,088 sq ft

1004 Mercer Rd, Princeton, NJ 08540

(609) 924-1600

$495,000

2 beds1 bath704 sq ft

41 Quarry St, Princeton, NJ 08542

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$3,500,000

6 beds7.5 baths7,628 sq ft

117 Bouvant Dr, Princeton, NJ 08540

(609) 921-1050

$2,975,000

5 beds6 baths5,622 sq ft

120 Winant Rd, Princeton, NJ 08540

(609) 921-1050

$1,425,000

3 beds2.5 baths1,976 sq ft

370 Franklin Ave, Princeton, NJ 08540

(609) 921-1050

$2,200,000

5 beds3 baths4,407 sq ft

58 Fairway Dr, Princeton, NJ 08540

(609) 710-2021

New listings for sale in 08540

NEW 21 HRS AGOVIDEO TOUR

$5,799,000

6 beds9 baths12,517 sq ft

Princeton, NJ 08540

(609) 436-5221

3D WALKTHROUGH

$1,395,000

4 beds3 baths3,975 sq ft

24 Buckingham Dr, Princeton, NJ 08540

(609) 921-1050

$1,425,000

3 beds2.5 baths1,976 sq ft

370 Franklin Ave, Princeton, NJ 08540

(609) 921-1050

$1,950,000

5 beds4.5 baths3,453 sq ft

19 Pardoe Rd, Princeton, NJ 08540

(609) 921-1050

$469,000

2 beds2 baths1,210 sq ft

114 Cascade Ct #2, Princeton, NJ 08540

(267) 765-2080

$1,549,900

4 beds4.5 baths5,830 sq ft

16 Benedek Rd, Princeton, NJ 08540

(609) 921-1411

$388,000

2 beds1 bath1,008 sq ft

304 Trinity Ct #9, Princeton, NJ 08540

(609) 924-1600

$899,000

5 beds2.5 baths2,415 sq ft

228 State Rd, Princeton, NJ 08540

(609) 987-8889

3D WALKTHROUGH

$1,868,000

5 beds4 baths3,343 sq ft

60 Battle Rd, Princeton, NJ 08540

(609) 924-1600

Home values near 505 Mercer Rd

Data from public records.

Address	Redfin Estimate
525 Mercer Road, Princeton, NJ 4 Beds \| 4.5 Baths \| - Sq. Ft.	$1,822,306
528 Mercer Road, Princeton, NJ 3 Beds \| 2 Baths \| 1424 Sq. Ft.	$1,090,372

Address	Redfin Estimate
533 Mercer Road, Princeton, NJ 4 Beds \| 3.5 Baths \| 3538 Sq. Ft.	$1,550,508
536 Mercer Road, Princeton, NJ - Beds \| - Baths \| 2158 Sq. Ft.	$1,042,030

Address	Redfin Estimate
545 Mercer Road, Princeton, NJ 3 Beds \| 1.5 Baths \| 1148 Sq. Ft.	$752,251
552 Mercer Road, Princeton, NJ - Beds \| - Baths \| 2330 Sq. Ft.	$859,245

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