Roun Ave, Williamstown, NJ Property Records

Gloucester County and Monroe Township property records for 23 addresses on Roun Ave, Williamstown, NJ · Last verified August 2026

Roun Ave Highlights

Properties 23
Median Sale Price $225,000
Deeds and Mortgages on File 27
Median Price per Sqft $134
Owner Occupied 87%
Median Annual Tax Bill $5,763
Median Year Built 1967
Median Ownership Tenure 11 years

Properties on Roun Ave

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

501 Roun Ave

1,679 sqft · built 1940 · 0.492 acres

Last Sale Tax Bill Prior Sale Owner Records
$225,000Feb 2021 $6,0002025 Amount on Record Jun 2019 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

505 Roun Ave

1,448 sqft · built 1980 · 0.461 acres

Last Sale Tax Bill Prior Sale Owner Records
$187,000Sep 2020 $5,6162025 Amount on Record Apr 2012 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

509 Roun Ave

1,008 sqft · built 1982 · 0.462 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 1996 $4,3382025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

513 Roun Ave

2,068 sqft · built 1975 · 0.424 acres

Last Sale Tax Bill Prior Sale Owner Records
$28,600Apr 1976 $6,3852025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

517 Roun Ave

976 sqft · built 1975 · 0.583 acres

Last Sale Tax Bill Prior Sale Owner Records
$256,500Apr 2026 $5,1562025 Amount on Record Dec 2019 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

521 Roun Ave

2,286 sqft · built 1975 · 0.895 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,8182025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

531 Roun Ave

3,131 sqft · built 2008 · 3.51 acres

Last Sale Tax Bill Prior Sale Owner Records
$225,000Jul 2019 $10,5952025 —May 2017 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

532 Roun Ave

1,834 sqft · built 2000 · 2.8 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1999 $8,8532025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

535 Roun Ave

1,008 sqft · built 1994 · 0.46 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2005 $5,1862025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

536 Roun Ave

1,480 sqft · built 1950 · 3.41 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Sep 2021 $7,4022025 Amount on Record Sep 2008 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

542 Roun Ave

1,532 sqft · built 1945 · 2.61 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

543 Roun Ave

1,886 sqft · built 1946 · 0.76 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Apr 2021 $5,7512025 Amount on Record Feb 2004 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

547 Roun Ave

1,887 sqft · built 1950 · 5.71 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2022 $8,9512025 Amount on Record Mar 2017 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

556 Roun Ave

1,280 sqft · built 1963 · 0.86 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,000Dec 2021 $4522025 Amount on Record May 2002 Owner on Record Assessor + 2 DocumentsUpdated Jul 2026

559 Roun Ave

1,048 sqft · built 1967 · 1.94 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 1999 $3,6862025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

560 Roun Ave

792 sqft · built 1975 · 2.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$25,000Feb 2010 $2,9782025 Owner on Record AssessorUpdated Jul 2026

563 Roun Ave

1.93 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 1999 $2,7852025 Owner on Record AssessorUpdated Jul 2026

569 Roun Ave

1,152 sqft · built 1963 · 1.94 acres

Last Sale Tax Bill Prior Sale Owner Records
$217,500Jun 2008 $5,8952025 Amount on Record Jul 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

570 Roun Ave

1,020 sqft · built 1940 · 3.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$149,900Aug 2004 $5,4462025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

573 Roun Ave

1,958 sqft · built 1955 · 3.9 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Aug 2022 $8,7292025 Amount on Record Jan 2016 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

580 Roun Ave

1,416 sqft · built 1982 · 3.4 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1992 $6,2872025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

583 Roun Ave

1,380 sqft · built 1940 · 0.736 acres

Last Sale Tax Bill Prior Sale Owner Records
$470,000Jun 2015 $5,3262025 Amount on Record Feb 2015 Owner on Record Owner Occupied AssessorUpdated Jul 2026

590 Roun Ave

980 sqft · built 1950 · 4.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,7632025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

Property Records in Nearby Streets