Alameda County property records for 19 addresses on Flagstone Dr, Union City, CA · Last verified August 2026
| Properties | 19 |
|---|---|
| Median Sale Price | $635,000 |
| Deeds and Mortgages on File | 30 |
| Median Price per Sqft | $425 |
| Owner Occupied | 79% |
| Median Annual Tax Bill | $7,030 |
| Median Year Built | 1997 |
| Median Ownership Tenure | 25 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2.5 ba · 1,492 sqft · 0.05 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $385,000Sep 2001 | $12,4472025 | Amount on Record Sep 1997 | 1 Name on Record | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 1,574 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $237,500Nov 1996 | $6,4582025 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 3 ba · 1,554 sqft · 0.05 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,010,000Feb 2026 | $6,1362025 | Amount on Record Mar 1999 | 2 Names on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 1,988 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $266,000Nov 1996 | $6,8602025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
2 bd · 2 ba · 1,140 sqft · 0.039 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $189,000Oct 1997 | $4,9382025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 1,859 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 1997 | $7,0302025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
2 bd · 2 ba · 1,140 sqft · 0.039 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $865,000Oct 2025 | $11,1842025 | 2 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Nov 2025 |
3 bd · 3 ba · 1,551 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $490,000Nov 2002 | $10,5462025 | 3 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 3 ba · 1,554 sqft · 0.05 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,000,000Apr 2021 | $14,8812025 | Amount on Record Aug 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 2.5 ba · 1,988 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $266,000Oct 1996 | $6,8602025 | —Apr 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2.5 ba · 1,492 sqft · 0.044 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $200,000Nov 1996 | $5,2402025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2.5 ba · 1,859 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $256,000Nov 1996 | $6,7432025 | —Dec 2001 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
2 bd · 2 ba · 1,140 sqft · 0.039 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $416,500May 2013 | $7,8482025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 3 ba · 1,551 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2021 | $14,3312025 | Amount on Record Aug 2005 | 2 Names on Record | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 1,554 sqft · 0.049 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $405,000Sep 2012 | $7,4262025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 1,988 sqft · 0.079 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Nov 2011 | $9,7172025 | —Nov 2015 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
2 bd · 2 ba · 1,050 sqft · 0.039 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $104,027Sep 1997 | $4,4622025 | —Oct 2013 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 3 ba · 1,574 sqft · 0.095 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $240,000Nov 1996 | $6,3282025 | —Feb 2011 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2.5 ba · 1,492 sqft · 0.05 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $635,000Oct 2016 | $10,4332025 | Amount on Record Jun 2009 | 1 Name on Record Owner Occupied | Assessor + 7 DocumentsUpdated Aug 2026 |