Alameda County property records for 11 addresses on Gem Ave, Union City, CA · Last verified August 2026
| Properties | 11 |
|---|---|
| Median Sale Price | $600,000 |
| Deeds and Mortgages on File | 16 |
| Median Price per Sqft | $368 |
| Owner Occupied | 82% |
| Median Annual Tax Bill | $8,931 |
| Median Year Built | 1965 |
| Median Ownership Tenure | 15 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2 ba · 1,627 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,4462025 | —Aug 2013 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,627 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $217,000Jan 1994 | $5,5902025 | —Apr 2007 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 2,087 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $880,000Aug 2017 | $15,1972025 | —Feb 2020 | 3 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,627 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 1985 | $2,2372025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,627 sqft · 0.137 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $600,000Oct 2014 | $9,9482025 | —May 2003 | 2 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
5 bd · 3 ba · 1,735 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $510,100Oct 2011 | $8,9312025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 2 ba · 1,298 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $820,000Sep 2017 | $12,7112025 | Amount on Record Aug 2011 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 1,627 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $972,500Jul 2018 | $14,6272025 | —Dec 1995 | 2 Names on Record | Assessor + 5 DocumentsUpdated Oct 2025 |
5 bd · 4 ba · 3,283 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $251,000Aug 1998 | $12,8652025 | —Apr 2015 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2 ba · 1,362 sqft · 0.155 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $234,000Jul 1998 | $5,4772025 | —Oct 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,627 sqft · 0.165 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $160,000Feb 1988 | $4,8002025 | —Feb 2003 | 1 Name on Record | AssessorUpdated Aug 2026 |