Union County and Mountainside Borough property records for 20 addresses on Oak Tree Rd, Mountainside, NJ · Last verified July 2026
| Properties | 20 |
|---|---|
| Median Sale Price | $510,115 |
| Deeds and Mortgages on File | 30 |
| Median Price per Sqft | $342 |
| Owner Occupied | 95% |
| Median Annual Tax Bill | $10,084 |
| Median Year Built | 1942 |
| Median Ownership Tenure | 14 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
1,235 sqft · Built 1956 · 0.144 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Jan 2019 | $9,1542025 | Amount on Record Apr 2004 | 2 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Jul 2026 |
1,834 sqft · Built 1972 · 0.346 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $520,000Jul 2006 | $10,9012025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
1,498 sqft · Built 1950 · 0.191 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $390,000Dec 2014 | $8,7892025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,404 sqft · Built 1948 · 0.698 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Oct 2012 | $11,2812025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
1,338 sqft · Built 1954 · 0.194 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $380,000Oct 2003 | $9,9462025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,776 sqft · Built 1957 · 0.248 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100Jan 1992 | $10,0342025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,225 sqft · Built 1700 · 0.226 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $675,000Apr 2026 | $9,3952025 | Amount on Record Jan 2021 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2,175 sqft · Built 1935 · 0.239 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,6202025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,442 sqft · Built 1935 · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $383,750Jun 2012 | $9,3812025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,684 sqft · Built 1942 · 0.314 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $170,000Jun 1992 | $9,4022025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,322 sqft · Built 1935 · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,175,000Feb 2025 | $16,1782025 | Amount on Record Jul 2023 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,710 sqft · Built 1940 · 0.36 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $221,000Jun 1994 | $13,6312025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
2,148 sqft · Built 2008 · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $385,500Apr 2003 | $13,5412025 | Amount on Record Jul 1998 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1,695 sqft · Built 1948 · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100Apr 1993 | $10,3092025 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
1,809 sqft · Built 1938 · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $619,000Dec 2023 | $9,5072025 | Amount on Record Sep 1988 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
1,101 sqft · Built 1940 · 0.205 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $442,000Jul 2004 | $9,1082025 | Amount on Record Mar 2002 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,484 sqft · Built 1950 · 0.233 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $460,000Dec 2006 | $10,0842025 | Amount on Record May 2001 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
1,519 sqft · Built 1930 · 0.305 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $510,115Aug 2021 | $10,6182025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
1,760 sqft · Built 1941 · 0.241 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $485,000May 2018 | $10,2772025 | Amount on Record Apr 1985 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
1,474 sqft · Built 1942 · 0.226 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,9232025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |