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$750,000 Just Listed
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Property Description
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.
Full Property Details
Full Property Details for 56 S Union St
General
- Price: $750,000
- Taxes: $9,259 (2026)
- Status: Active
- Type: Single Family
- Source: Garden_State
- MLS ID: 4047529
- Updated: Today (8/18/2026)
- Added to Site: Today
Interior
- Number of Rooms: 5
- 2nd Floor/Level 2: 1 Bedroom, Attic, Loft, Storage Room
- 1st Floor/Level 1: 1 Bedroom, Bath Main, Kitchen, Living Room
- Lower Level: Outside Entrance, Storage Room, Workshop
- Interior Features: Carbon Monoxide Detector, Fire Extinguisher, Smoke Detector, Tub Shower
- Number of Fireplaces: 1
- Fireplace(s): Wood Stove-Freestanding
- Appliances: Dishwasher, Dryer, Gas Range and Oven, Refrigerator, Sump Pump, Washer
- Flooring: Carpeting, Vinyl-Linoleum, Wood
Rooms
Bathrooms
- Total Bathrooms: 1
- Full Bathrooms: 1
Bedrooms
- Total Bedrooms: 2
- Bedroom 1: 16 x 14, Second
- Bedroom 2: 8 x 16, First
Other Rooms
- Living Room: 16 x 12, First
- Kitchen: Galley Type, 8 x 10, First
- Attic: 13 x 22, Second
- Attic: Second
Exterior
- Exterior Features: Curbs, Patio, Sidewalk, Storage Shed, Wood Fence
- Color: White
Parking
- Uncovered Spaces: 4
Location
- County: Hunterdon
- Driving Directions: From center of Lambertville, take South Union St. and property on your left
School Information
- Elementary School: LAMBERTVLE
- Middle School: S.HUNTERDN
- High School: S.HUNTERDN
Heating & Cooling
- Cooling Type: Wall A/C Unit(s)
- Heating Type: 1 Unit, Forced Hot Air
- Heating Fuel: Natural Gas, Oil Tank Above Ground - Inside
- Water Heater: From Furnace
Utilities
- Sewer: Public Sewer
- Water: Public Water
- Utility Description: Natural Gas, Cable TV Available, Garbage Included
Structural Information
- Architectural Style: Cottage
- Basement: Yes
- Basement Desc.: Bilco-Style Door, Unfinished
- Roof: Asphalt Shingles
- Square Feet: 1,007
- Year Built: 1920
Lot Features
- Lot Size (Acres): 0.08
- Lot Size: 20 x 181
- Driveway/Sidewalk: Fencing, Gravel, Off-Street Parking, On-Street Parking
- Zoning: R2
- Lot Description: Level Lot
Financial Considerations
- Assessment Amount: $402,700
- Land Assmt: $317,000
- Tax Amount: $9,259
- Tax Year: 2026
Disclosures and Reports
- Ownership: Fee Simple
- Disclosures: Yes
- APN: 1917-01051-0000-00018-0000-
- Block: 1051
- Lot Number: 18
Listed by River Valley Realty Llc
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Price & Sales History for 56 S Union St
Date
Details
Price
Change
Source
8/18/2026
Listed
$750,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 56 S Union St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$8,418
1%
$402,700
8%
2024
$8,331
8%
$372,000
9%
2022
$7,734
3%
$339,800
1%
2021
$7,480
4%
$334,800
2%
2020
$7,214
8%
$329,800
2%
2019
$6,664
5%
$324,800
7%
2018
$6,355
6%
$304,800
3%
2017
$6,017
7%
$294,800
5%
2016
$5,599
1%
$279,800
2%
2015
$5,529
-17%
$274,100
-13%
2019
$6,664
32%
$314,800
15%
2013
$5,060
—
$274,100
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 56 S Union St
56 S Union St, Lambertville, NJ 08530 (MLS# 4047529) is a Single Family property with 2 bedrooms and 1 full bathroom. 56 S Union St is currently listed for $750,000 and was received on August 18, 2026. Want to learn more about 56 S Union St? Do you have questions about finding other Single Family real estate for sale in Lambertville? You can browse all Lambertville real estate or contact a Coldwell Banker agent to request more information.

