Union County and Mountainside Borough property records for 13 addresses on Old Grove Rd, Mountainside, NJ · Last verified July 2026
| Properties | 13 |
|---|---|
| Median Sale Price | $655,000 |
| Deeds and Mortgages on File | 17 |
| Median Price per Sqft | $259 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $12,182 |
| Median Year Built | 1960 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2,118 sqft · built 1957 · 0.435 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,1302025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,406 sqft · built 1960 · 0.398 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $680,000Dec 2008 | $12,0732025 | Amount on Record Mar 1998 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
6,257 sqft · built 1956 · 0.635 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $335,000Sep 2000 | $23,0392025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,022 sqft · built 1960 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $555,000May 2014 | $11,2792025 | Owner on Record | AssessorUpdated Jul 2026 |
2,422 sqft · built 1960 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 1999 | $11,6932025 | 2 Owners on Record | AssessorUpdated Jul 2026 |
2,622 sqft · built 1960 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $679,000May 2020 | $13,2972025 | Amount on Record Aug 1997 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2,541 sqft · built 1960 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,2162025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,191 sqft · built 1960 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $610,000Sep 2019 | $11,7662025 | Amount on Record Jul 2002 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,284 sqft · built 1960 · 0.316 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $250,000May 1989 | $13,4322025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,271 sqft · built 1960 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100Jan 1992 | $12,1172025 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
2,429 sqft · built 1956 · 0.453 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Apr 2004 | $14,2072025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,935 sqft · built 1960 · 0.398 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $759,000Sep 2020 | $15,5212025 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2,527 sqft · built 1956 · 0.542 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $655,000Aug 2007 | $12,1822025 | Amount on Record Mar 2003 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |