Union County and Mountainside Borough property records for 20 addresses on Brookside Rd, Mountainside, NJ · Last verified August 2026
| Properties | 20 |
|---|---|
| Median Sale Price | $610,000 |
| Deeds and Mortgages on File | 21 |
| Median Price per Sqft | $304 |
| Owner Occupied | 95% |
| Median Annual Tax Bill | $11,649 |
| Median Year Built | 1962 |
| Median Ownership Tenure | 12 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3,015 sqft · Built 1961 · 0.38 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,2662025 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,286 sqft · Built 1962 · 0.483 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 1973 | $11,5862025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,332 sqft · Built 1962 · 0.41 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $311,500Oct 1999 | $11,2962025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,206 sqft · Built 1962 · 0.351 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $540,000Nov 2019 | $11,1302025 | Amount on Record Mar 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,759 sqft · Built 1962 · 0.344 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $535,000Apr 2018 | $10,6202025 | Amount on Record Aug 2014 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,604 sqft · Built 1962 · 0.351 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $259,000Oct 1999 | $10,7392025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,787 sqft · Built 1962 · 0.38 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $688,000Jul 2023 | $11,6492025 | Amount on Record Dec 2020 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
1,726 sqft · Built 1962 · 0.344 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Jun 2017 | $10,2862025 | Amount on Record Jan 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,904 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $610,000Nov 2017 | $11,9282025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3,440 sqft · Built 2014 · 0.348 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $951,000Apr 2015 | $19,7652025 | Amount on Record Jan 2014 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,523 sqft · Built 1962 · 0.353 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $225,000Mar 1997 | $11,5272025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3,279 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $480,000May 2010 | $13,8712025 | Amount on Record Dec 2004 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
3,055 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $15,3662025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,860 sqft · Built 1962 · 0.358 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $830,000Apr 2025 | $10,7352025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
2,458 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $585,000Mar 2017 | $12,1632025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,913 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Aug 2014 | $12,3102025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,661 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $615,000Dec 2007 | $11,2902025 | Amount on Record Jan 1995 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,539 sqft · Built 1962 · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100Mar 1990 | $10,5292025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,830 sqft · Built 1962 · 0.398 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 1988 | $15,1702025 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3,188 sqft · Built 1962 · 0.432 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $11,8882025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |