Middlesex County and South Plainfield Borough property records for 42 addresses on Firth St, South Plainfield, NJ · Last verified July 2026
| Properties | 42 |
|---|---|
| Median Sale Price | $486,000 |
| Deeds and Mortgages on File | 38 |
| Median Price per Sqft | $308 |
| Owner Occupied | 90% |
| Median Annual Tax Bill | $8,184 |
| Median Year Built | 1954 |
| Median Ownership Tenure | 6 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
0.215 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $705,000Feb 2026 | $9,0132025 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
built 1952 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $259,000Mar 2004 | $7,1042025 | Owner on Record | AssessorUpdated Jul 2026 |
3,058 sqft · built 2005 · 0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $611,400Sep 2005 | $14,6322025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
built 1944 · 0.298 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $701,000Aug 2025 | $9,3432025 | Amount on Record Jun 2019 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,209 sqft · built 1919 · 0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $486,000Feb 2022 | $7,7702025 | Amount on Record Jun 1998 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.43 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $111,000Jul 1998 | $8,0702025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $390,000Jun 2020 | $6,2772025 | —Oct 2018 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $126,500Sep 1990 | $7,9312025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,2402025 | Owner on Record | AssessorUpdated Jul 2026 |
1,172 sqft · built 1952 · 0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $415,000Sep 2022 | $7,6602025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
built 1958 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $320,000Jun 2018 | $10,2202025 | Amount on Record Jul 2010 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,8852025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $166,500Jun 1996 | $8,6992025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.172 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,3772025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $379,000Dec 2004 | $10,5502025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,153 sqft · built 1956 · 0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,2742025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,2722025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
built 1928 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3962025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,190 sqft · built 1954 · 0.258 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000Sep 2012 | $7,1262025 | 2 Owners on Record | AssessorUpdated Jul 2026 |
0.235 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1990 | $8,6042025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,673 sqft · built 1954 · 0.137 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000Feb 2022 | $7,5652025 | Amount on Record Nov 2004 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,631 sqft · built 1954 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Oct 2022 | $9,6132025 | Amount on Record Nov 2004 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.137 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $148,000Jul 1992 | $7,1332025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
built 1952 · 0.203 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,1952025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,404 sqft · built 1952 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $307,000Dec 2021 | $6,8192025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
0.199 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,5282025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,680 sqft · built 1952 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,2182025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,870 sqft · built 1950 · 0.199 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $615,000Jan 2022 | $12,9862025 | Amount on Record Jul 2003 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
1,548 sqft · built 1952 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $570,000Feb 2025 | $8,1282025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
782 sqft · built 1952 · 0.199 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000Sep 2024 | $8,1722025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,344 sqft · built 1952 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $294,000Nov 2016 | $8,1842025 | Amount on Record Jul 2015 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
built 1991 · 0.199 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $429,900Nov 2004 | $12,6332025 | Amount on Record Apr 2004 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,470 sqft · built 1952 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $360,000Oct 2022 | $6,6502025 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
built 1954 · 0.203 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Aug 2019 | $12,5842025 | Amount on Record Aug 2008 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $42,011Jul 2008 | $7,3822025 | Amount on Record Jul 2008 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.137 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,6012025 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
1,112 sqft · built 1960 · 0.408 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3002025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
built 1964 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,6162025 | Owner on Record | AssessorUpdated Jul 2026 |
1,297 sqft · built 1972 · 0.348 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $400,000Mar 2020 | $8,7022025 | Amount on Record Jul 2013 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
built 1966 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Jun 2023 | $8,6552025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
1,910 sqft · built 1969 · 0.282 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $437,500Nov 2020 | $9,6212025 | Amount on Record Nov 1994 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $280,000Dec 2000 | $11,5672025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |