Steps from the towpath, this charming detached cottage on a double lot is ready for your renovation ideas. Road frontage on both South Union and Wilson Streets, leave room for expanding the current home or potential new construction. A bluestone walkway from the parking area leads through garden beds to your backyard patio. Inside, the bright main room has natural light and wood floors. The kitchen adjoins the bath, and a rear bedroom completes the first floor. Upstairs, a loft bedroom adjoins a loft, perfect for storage. This home has curb appeal, a lovely yard, and is near all the river activities, shops and restaurants of popular Lambertville.
Steps from the towpath, this charming detached cottage on a double lot is ready for your renovation ideas. Road frontage on both South Union and Wilson Streets, leaves room for expanding the current home or potential new construction. A slate walkway from the parking area, featuring four spaces, leads past a shed and through garden beds to a backyard patio. Inside, the bright main room has natural light and wood floors. The kitchen adjoins the bath, and a back bedroom completes the first floor. Upstairs, a loft bedroom adjoins a loft, perfect for storage. This home has curb appeal, a lovely yard, and is near all of the river activities, shops and restaurants of popular Lambertville.
BRIGHT MLS #NJHT2005280
Oct 2, 2026
Price Changed
$599,000
$595/sq ft
Sep 8, 2026
Price Changed
$675,000
$670/sq ft
Aug 17, 2026
Listed
$750,000
$745/sq ft
Aug 13, 2026
Coming Soon
$750,000
$745/sq ft
BRIGHTMLS #NJHT2003496
Jan 6, 2025
Rental Removed
$2,600
$3/sq ft
Jan 2, 2025
Listed for Rent
$2,600
$3/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$8,418 (+1.0%)
$317,000 + $85,700
$402,700
2024
$8,331 (+4.7%)
$287,000 + $85,000
$372,000
2023
$7,958 (+2.9%)
$277,000 + $83,500
$360,500
2022
$7,734 (+3.4%)
$257,000 + $82,800
$339,800
2021
$7,480 (+3.7%)
$252,000 + $82,800
$334,800
2020
$7,214 (+8.2%)
$247,000 + $82,800
$329,800
2019
$6,664 (+4.9%)
$242,000 + $82,800
$324,800
2018
$6,355 (+5.6%)
$232,000 + $82,800
$314,800
2017
$6,017 (+7.5%)
$222,000 + $82,800
$304,800
2016
$5,598 (+6.4%)
$212,000 + $82,800
$294,800
2014
$5,259 (+3.9%)
$192,000 + $82,100
$274,100
2013
$5,060 (−0.2%)
$192,000 + $82,100
$274,100
2012
$5,068 (−0.3%)
$192,000 + $82,100
$274,100
2011
$5,082 (+5.0%)
$192,000 + $82,100
$274,100
2010
$4,841 (+8.9%)
$192,000 + $82,100
$274,100
2009
$4,444
$192,000 + $82,100
$274,100
Public record
Public record
Zoning
Beds
—
Baths
—
Stories
1
Lot width
15 ft.
Lot depth
180 ft.
Lot size
3,620 Sq. Ft.
Year renovated
—
Finished Sq. Ft.
1,007
Unfinished Sq. Ft.
—
Total Sq. Ft.
1,007
Year built
1920
Style
Single Family Residential
County
Hunterdon County
APN
1701051 00018
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 14, 2026.
R2
Residential 2 Downtown Residential District
The purpose of the Residential 2 R-2 Downtown Residential District is to allow for several types of residences, limited institutional, lodging or social uses, and municipal purposes in the lowland area of the municipality. These areas are fully developed and served with public water and sewer.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Lodging-Full service
Public service
Educational/school
Recreation
Death related/funeral home
Cemetery
Park & open space
Climate risks
5/10 Flood Factor
Estimated 16-24% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
5/10 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
Lambertville, NJ • 08530
Average low and high temperatures (°F)
35
20
39
23
57
35
66
43
72
52
83
62
87
68
81
60
78
58
68
45
56
36
40
25
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
61/ 100
Moderate sunlight
Sunscore
There appears to be some shading by surrounding buildings, terrain, and vegetation.
7.2 hrs
1.9 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 56 S Union St
$588,542
$10K under list price of $599K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $450K to $839K.