4th Ave, Westfield, NJ Property Records

Union County, Westfield Town and Plainfield City property records for 43 addresses on 4th Ave, Westfield, NJ · Last verified August 2026

4th Ave Highlights

Properties 43
Median Sale Price $642,000
Deeds and Mortgages on File 46
Median Price per Sqft $420
Owner Occupied 81%
Median Annual Tax Bill $13,674
Median Year Built 1982
Median Ownership Tenure 9 years

Properties on 4th Ave

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

600 4th Ave, #1

1,020 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$360,000Nov 2018 $8,1942025 Amount on Record Apr 2015 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

602 4th Ave, #2

1,020 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$451,000Jul 2023 $7,9832025 Amount on Record Jul 1996 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

604 4th Ave

840 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Jun 2020 $7,0112025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

606 4th Ave

840 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$105,000Oct 1994 $7,1602025 —Jul 1994 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

607 4th Ave

2,760 sqft · Built 1973 · 0.162 acres

Last Sale Tax Bill Prior Sale Owner Records
$135,000Jul 1983 $13,3852025 2 Names on Record AssessorUpdated Jul 2026

608 4th Ave

840 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000May 2013 $7,3072025 Amount on Record Jun 2006 2 Names on Record AssessorUpdated Jul 2026

610 4th Ave

840 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$315,000Dec 2021 $7,2132025 Amount on Record Jul 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

611 4th Ave

2,760 sqft · Built 1973 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$305,000May 1999 $13,8762025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

612 4th Ave, #7

840 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$352,825Feb 2022 $7,7012025 Amount on Record Mar 2016 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

614 4th Ave, #8

1,020 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Apr 2017 $7,7422025 Amount on Record Feb 2017 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

615 4th Ave

2,266 sqft · Built 1970 · 0.287 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$380,000Jun 2001 $17,3022025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

616 4th Ave, #9

1,020 sqft · Built 1982 · 0.55 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1992 $7,6972025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

622 4th Ave

1,260 sqft · Built 1920 · 0.111 acres

Last Sale Tax Bill Prior Sale Owner Records
$651,000Apr 2022 $11,8842025 Amount on Record Aug 2016 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

626 4th Ave

2,502 sqft · Built 2020 · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,120,000Apr 2021 $22,5782025 Amount on Record Oct 2018 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

627 4th Ave

3,581 sqft · Built 2017 · 0.232 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,275,000Dec 2017 $28,9622025 Amount on Record Aug 2014 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

631 4th Ave

3,154 sqft · Built 2016 · 0.238 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,359,000Mar 2017 $30,0462025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

632 4th Ave

2,272 sqft · Built 1969 · 0.174 acres

Last Sale Tax Bill Prior Sale Owner Records
$575,000Jun 2021 $14,0872025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

634 4th Ave

2,900 sqft · Built 1928 · 0.174 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Feb 2020 $17,0892025 —Nov 1974 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

638 4th Ave

1,563 sqft · Built 1930 · 0.174 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$642,000Nov 2020 $13,5922025 Amount on Record May 2015 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

641 4th Ave

2,140 sqft · Built 1960 · 0.292 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$16,9042025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

642 4th Ave

1,695 sqft · Built 1928 · 0.174 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$150,000Apr 1997 $13,0672025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

646 4th Ave

2,174 sqft · Built 1917 · 0.174 acres

Last Sale Tax Bill Prior Sale Owner Records
$482,000Jul 2009 $15,3062025 Amount on Record Jun 1994 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

649 4th Ave

3,302 sqft · Built 2013 · 0.223 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,325,000Aug 2016 $28,5742025 Amount on Record Apr 2014 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

650 4th Ave

4.61 acres

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record AssessorUpdated Jul 2026

655 4th Ave

2,952 sqft · Built 2013 · 0.205 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,229,000Apr 2014 $27,9882025 Amount on Record Apr 2006 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

667 4th Ave

4,082 sqft · Built 2024 · 0.367 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,775,000Aug 2025 $36,3032025 Amount on Record Sep 2022 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

706 4th Ave

3.73 acres

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record AssessorUpdated Jul 2026

711 4th Ave

2,971 sqft · Built 2018 · 0.182 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,315,000Dec 2022 $22,7022025 Amount on Record May 2018 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

713 4th Ave

1,254 sqft · Built 1925 · 0.21 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$180,000Feb 1999 $12,4892025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

717 4th Ave

1,825 sqft · Built 1910 · 0.209 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$172,000Apr 1991 $13,6742025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

725 4th Ave

3,072 sqft · Built 2010 · 0.399 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$960,000Aug 2014 $23,0692025 Amount on Record Jul 2006 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

727 4th Ave

0.155 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2023 $4772025 Amount on Record Aug 2016 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

729 4th Ave

0.275 acres

Last Sale Tax Bill Prior Sale Owner Records
$707,000Apr 2024 $5202025 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

733 4th Ave

0.216 acres

Last Sale Tax Bill Prior Sale Owner Records
$340,000Oct 2010 $5842025 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

741 4th Ave

0.201 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Jan 1985 $992025 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

813 4th Ave

3,075 sqft · Built 2016 · 0.194 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,225,000Apr 2017 $26,7482025 Amount on Record Mar 2016 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

828 4th Ave

3,922 sqft · Built 2016 · 0.287 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,265,000May 2017 $26,9492025 Amount on Record Jan 2016 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

834 4th Ave, #36

1,456 sqft · Built 1921 · 0.122 acres

Last Sale Tax Bill Prior Sale Owner Records
$362,500Nov 2022 $10,2652025 Amount on Record Jan 2019 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

840 4th Ave

1,338 sqft · Built 1920 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 1977 $11,6732025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

842 4th Ave

1,930 sqft · Built 1981 · 0.172 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$310,000Oct 2000 $15,0292025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

844 4th Ave

2,051 sqft · Built 1920 · 0.172 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$320,000Jan 2003 $13,7502025 Amount on Record Apr 1998 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

850 4th Ave

3,109 sqft · Built 2008 · 0.258 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$861,275Sep 2009 $21,8592025 Amount on Record Aug 2007 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

860 4th Ave

2,110 sqft · Built 1954 · 0.094 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,2802025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

Wildfire Risk on 4th Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskLow
this street's cells rank above 2% of the US · above 5% of New Jersey
Wildfire LikelihoodLess than 1 in 10,000 per year
ExposureDirect
1 of 6 cells directly exposed · 5 adjoin burnable vegetation

Property Records in Nearby Streets