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South Ave, Dunellen, NJ Property Records

Middlesex County and Dunellen Borough property records for 32 addresses on South Ave, Dunellen, NJ · Last verified October 2026

South Ave Highlights

Properties 32
Median Sale Price $425,000
Deeds and Mortgages on File 27
Median Price per Sqft $257
Owner Occupied 53%
Median Annual Tax Bill $10,414
Median Year Built 1950
Median Ownership Tenure 13 years

Properties on South Ave

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

507 South Ave

1,592 sqft · built 1985 · 0.069 acres

Last Sale Tax Bill Prior Sale Owner Records
$409,900May 2022 $10,4142025 Amount on Record Aug 2009 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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509 South Ave

842 sqft · built 1957 · 0.537 acres

Last Sale Tax Bill Prior Sale Owner Records
$218,000Oct 2019 $9,1042025 Amount on Record May 2013 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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515 South Ave

18,224 sqft · built 1954 · 1.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$30,9752025 Owner on Record AssessorUpdated Jul 2026

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530 South Ave

built 1913 · 1.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,0932025 Owner on Record AssessorUpdated Jul 2026

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538 South Ave

992 sqft · built 1960 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1989 $8,8082025 2 Owners on Record AssessorUpdated Jul 2026

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539 South Ave

2,120 sqft · built 1963 · 0.316 acres

Last Sale Tax Bill Prior Sale Owner Records
$170,000Mar 1997 $11,2442025 Owner on Record AssessorUpdated Jul 2026

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540 South Ave

1,222 sqft · built 1960 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$242,500Sep 2005 $8,5242025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

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542 South Ave

1,094 sqft · built 1960 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$90,000Mar 1992 $8,4972025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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544 South Ave

1,008 sqft · built 1960 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,2692025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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545 South Ave

928 sqft · built 1918 · 0.086 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,8852025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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548 South Ave

1,792 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$163,000Dec 1998 $11,8092025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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549 South Ave

1,420 sqft · built 1918 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Jun 2004 $10,2992025 2 Owners on Record AssessorUpdated Jul 2026

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553 South Ave

1,182 sqft · built 1960 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$128,000Sep 1993 $9,5132025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

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554 South Ave

1,488 sqft · built 1960 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,4862025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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556 South Ave

959 sqft · built 1960 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Aug 2025 $7,6452025 Amount on Record Jun 2024 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Oct 2026

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557 South Ave

2,880 sqft · built 1918 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$57,500Dec 1999 $13,1682025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

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559 South Ave

1,029 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$70,000Mar 2013 $9,5722025 Amount on Record Nov 2002 Owner on Record AssessorUpdated Oct 2026

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560 South Ave

2,204 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000Sep 2018 $12,2602025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

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564 South Ave, #566

2,344 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$12,5172025 Owner on Record AssessorUpdated Jul 2026

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565 South Ave

1,508 sqft · built 1950 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$180,000Mar 2011 $11,5012025 Amount on Record Sep 2004 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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569 South Ave

1,184 sqft · built 1918 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,5852025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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570 South Ave

828 sqft · built 1960 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$110,000Oct 2016 $8,1592025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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571 South Ave, #573

1,676 sqft · built 1918 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$377,000Sep 2019 $12,3092025 —Apr 1989 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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577 South Ave

1,048 sqft · built 1918 · 0.242 acres

Last Sale Tax Bill Prior Sale Owner Records
$679,000Mar 2026 $6,0442025 Amount on Record Jun 2024 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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578 South Ave

1,696 sqft · built 1950 · 0.098 acres

Last Sale Tax Bill Prior Sale Owner Records
$171,000Feb 1997 $12,0862025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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580 South Ave

1,696 sqft · built 1950 · 0.098 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1994 $11,9932025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

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581 South Ave

1,200 sqft · built 1918 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2017 $8,6952025 Amount on Record Jan 1997 Owner on Record Assessor + 2 DocumentsUpdated Sep 2026

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582 South Ave

2,758 sqft · built 1950 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$142,500Nov 2012 $11,0092025 —Oct 2012 2 Owners on Record AssessorUpdated Oct 2026

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583 South Ave

3 bd · 2,355 sqft · built 1981 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$210,000Dec 2016 $13,6482025 —Sep 2016 Owner on Record AssessorUpdated Oct 2026

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600 South Ave, #602

2,860 sqft · built 2015 · 0.083 acres

Last Sale Tax Bill Prior Sale Owner Records
$625,000Mar 2022 $14,2422025 —Aug 2010 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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606 South Ave

2,592 sqft · built 1908 · 1.61 acres

Last Sale Tax Bill Prior Sale Owner Records
$340,000May 2022 $11,5182025 Amount on Record Aug 2018 Owner on Record Assessor + 5 DocumentsUpdated Oct 2026

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620 South Ave

0.86 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,000,000Jul 2023 $1,6652025 Amount on Record Jun 2021 Owner on Record Assessor + 1 DocumentUpdated Aug 2026

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Property Records in Nearby Streets