Union St, Piscataway, NJ Property Records

Middlesex County and Piscataway Township property records for 11 addresses on Union St, Piscataway, NJ · Last verified July 2026

Union St Highlights

Properties 11
Median Sale Price $310,000
Deeds and Mortgages on File 20
Median Price per Sqft $310
Owner Occupied 100%
Median Annual Tax Bill $7,946
Median Year Built 1971
Median Ownership Tenure 6 years

Properties on Union St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

501 Union St

1,228 sqft · built 1958 · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Jan 2020 $7,3202025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

504 Union St

917 sqft · built 1925 · 0.084 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Feb 2021 $7,3472025 Amount on Record Apr 2016 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

505 Union St

1,228 sqft · built 1957 · 0.144 acres

Last Sale Tax Bill Prior Sale Owner Records
$310,000Jul 2021 $7,3202025 —Aug 2009 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

508 Union St

1,632 sqft · built 1889 · 0.567 acres

Last Sale Tax Bill Prior Sale Owner Records
$226,900Jun 2000 $9,2142025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

509 Union St

2,450 sqft · built 1914 · 0.257 acres

Last Sale Tax Bill Prior Sale Owner Records
$239,000Nov 2017 $8,8812025 Amount on Record May 2017 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

515 Union St

1,118 sqft · built 1973 · 0.249 acres

Last Sale Tax Bill Prior Sale Owner Records
$265,000Feb 2016 $8,0102025 Amount on Record Jul 2000 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

516 Union St

1,092 sqft · built 1971 · 0.203 acres

Last Sale Tax Bill Prior Sale Owner Records
$340,000Sep 2022 $7,4602025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

517 Union St

1,118 sqft · built 1973 · 0.249 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Sep 2022 $7,9462025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

519 Union St

1,118 sqft · built 1973 · 0.249 acres

Last Sale Tax Bill Prior Sale Owner Records
$246,900Apr 2004 $7,7492025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

520 Union St

1,118 sqft · built 1971 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$305,000Dec 2008 $8,0992025 Amount on Record Sep 2004 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

524 Union St

1,118 sqft · built 1971 · 0.22 acres

Last Sale Tax Bill Prior Sale Owner Records
$600,000Apr 2026 $8,6132025 Amount on Record Aug 2005 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

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