Alameda County property records for 53 addresses on Sydney Cir, Castro Valley, CA · Last verified August 2026
| Properties | 53 |
|---|---|
| Median Sale Price | $1,220,000 |
| Deeds and Mortgages on File | 71 |
| Median Price per Sqft | $641 |
| Owner Occupied | 89% |
| Median Annual Tax Bill | $8,466 |
| Median Year Built | 1991 |
| Median Ownership Tenure | 17 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2.5 ba · 1,997 sqft · built 1991 · 0.083 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $755,000Nov 2015 | $11,4152025 | Amount on Record Jul 2004 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 3 ba · 1,835 sqft · built 1991 · 0.081 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $863,000Oct 2019 | $11,9232025 | —Jul 2005 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1992 · 0.086 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $538,000Jul 2010 | $8,9192025 | —Mar 2004 | 2 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 2,078 sqft · built 1991 · 0.086 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $506,000Jul 2003 | $9,2732025 | Amount on Record Mar 1998 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2.5 ba · 1,997 sqft · built 1991 · 0.082 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $291,000Apr 1990 | $7,1042025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 3 ba · 1,914 sqft · built 1991 · 0.082 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $759,000Jul 2016 | $11,1812025 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 2.5 ba · 1,914 sqft · built 1991 · 0.118 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $340,000Apr 2000 | $6,9522025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 1,997 sqft · built 1992 · 0.077 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $605,000Oct 2004 | $10,7372025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 2.5 ba · 1,901 sqft · built 1992 · 0.072 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $780,000Oct 2017 | $11,4062025 | Amount on Record Jun 2010 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jun 2026 |
4 bd · 3 ba · 1,901 sqft · built 1992 · 0.075 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $247,000Feb 1995 | $5,6822025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1991 · 0.089 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $259,000May 1997 | $5,8402025 | 2 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 2.5 ba · 1,796 sqft · built 1991 · 0.097 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,280,000May 2026 | $6,4672025 | Amount on Record Nov 1996 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
4 bd · 3 ba · 1,914 sqft · built 1991 · 0.086 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,125,000Jun 2025 | $7,4012025 | 2 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 1,997 sqft · built 1992 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $918,500Feb 2020 | $12,6342025 | Amount on Record Oct 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2.5 ba · 1,835 sqft · built 1991 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,265,000Apr 2025 | $13,6702025 | Amount on Record Oct 2024 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2.5 ba · 1,796 sqft · built 1991 · 0.075 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Oct 1999 | $8,3592025 | —Nov 2004 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3.5 ba · 1,997 sqft · built 1991 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $286,000Mar 1990 | $7,1712025 | —Jun 2010 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2.5 ba · 1,816 sqft · built 1992 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $268,500May 1991 | $6,4992025 | —Jun 1995 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 3 ba · 1,901 sqft · built 1991 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,220,000Sep 2023 | $15,4702025 | Amount on Record Mar 2018 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
4 bd · 2.5 ba · 1,796 sqft · built 1991 · 0.077 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Oct 1990 | $7,1692025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 1,997 sqft · built 1991 · 0.087 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $470,000Nov 2002 | $8,8182025 | —Aug 2019 | 3 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2.5 ba · 1,997 sqft · built 1992 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $273,000Mar 1992 | $6,4832025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 2.5 ba · 1,901 sqft · built 1991 · 0.083 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,270,000May 2026 | $9,2872025 | Amount on Record Mar 2013 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 3 ba · 1,835 sqft · built 1993 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $730,000Nov 2015 | $10,9832025 | —Apr 2012 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 3 ba · 1,835 sqft · built 1991 · 0.082 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Dec 2011 | $7,3902025 | Amount on Record Apr 2006 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 3 ba · 1,901 sqft · built 1992 · 0.076 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $105,000May 1998 | $9,3022025 | Amount on Record Jun 2014 | 1 Name on Record | AssessorUpdated Oct 2025 |
4 bd · 2.5 ba · 1,914 sqft · built 1991 · 0.083 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,4232025 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
3 bd · 3 ba · 1,997 sqft · built 1992 · 0.078 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Feb 2009 | $8,4662025 | 1 Name on Record | AssessorUpdated Oct 2025 |
4 bd · 2.5 ba · 1,914 sqft · built 1991 · 0.083 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3622025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 2,010 sqft · built 1992 · 0.077 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $620,000Oct 2013 | $9,7542025 | —Apr 2013 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1991 · 0.097 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $528,000Nov 2010 | $8,8512025 | Amount on Record Sep 2003 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 3 ba · 1,901 sqft · built 1993 · 0.097 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $470,000May 2011 | $7,9742025 | 1 Name on Record | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 1,901 sqft · built 1993 · 0.097 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $790,000Jul 2015 | $11,8212025 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1993 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $506,000Jul 2003 | $9,2722025 | —Feb 1996 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 3 ba · 1,901 sqft · built 1993 · 0.088 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,330,000Nov 2024 | $16,5632025 | Amount on Record Jun 1996 | 2 Names on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 2.5 ba · 1,901 sqft · built 1993 · 0.091 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $260,000Jul 1992 | $6,0032025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2.5 ba · 1,997 sqft · built 1992 · 0.092 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $131,000Oct 1993 | $6,1462025 | —Oct 1993 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 3 ba · 1,901 sqft · built 1993 · 0.095 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $710,000Apr 2017 | $10,5922025 | —Sep 2017 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
3 bd · 2.5 ba · 1,997 sqft · built 1993 · 0.105 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,1262025 | —Oct 2010 | 1 Name on Record | AssessorUpdated Aug 2026 |
3 bd · 2.5 ba · 1,835 sqft · built 1993 · 0.096 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $694,000Nov 2006 | $11,4992024 | Amount on Record Oct 1999 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3 ba · 2,045 sqft · built 1993 · 0.102 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $685,000Mar 2015 | $10,5012025 | Amount on Record May 2005 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1993 · 0.089 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000May 2024 | $14,7102025 | —Oct 2025 | 3 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Nov 2025 |
4 bd · 2.5 ba · 1,914 sqft · built 1990 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000May 2026 | $6,9832025 | Amount on Record Jun 1999 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 3 ba · 1,997 sqft · built 1991 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $465,000Sep 2002 | $8,7332025 | —Feb 2021 | 3 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 3 ba · 1,901 sqft · built 1990 · 0.078 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $420,000Sep 2000 | $8,2542025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 2.5 ba · 1,997 sqft · built 1990 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $306,000Dec 1989 | $7,5102025 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
5 bd · 2.5 ba · 1,835 sqft · built 1990 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $320,000Jul 1999 | $6,6722025 | —Jul 1999 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2.5 ba · 1,997 sqft · built 1991 · 0.077 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $290,000Jul 1990 | $6,9582025 | —Dec 2017 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2.5 ba · 1,997 sqft · built 1992 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,4482025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 3 ba · 1,901 sqft · built 1993 · 0.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $256,000Dec 1992 | $6,0232025 | —Jul 2004 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 3 ba · 1,997 sqft · built 1991 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $545,000Feb 2010 | $9,0872025 | —Apr 2020 | 3 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 2.5 ba · 1,835 sqft · built 1991 · 0.073 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $258,000Jan 1993 | $6,0642025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 3 ba · 1,914 sqft · built 1991 · 0.084 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $557,500Aug 2009 | $9,3602025 | Amount on Record Oct 2001 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Low this street's cells rank above 33% of the US · above 19% of California |
|---|---|
| Wildfire Likelihood | About 1 in 2,970 per year |
| Exposure | Direct 1 of 3 cells directly exposed · 3 adjoin burnable vegetation |