Alameda County property records for 71 addresses on Riviera Dr, Union City, CA · Last verified September 2026
| Properties | 71 |
|---|---|
| Median Sale Price | $1,188,000 |
| Deeds and Mortgages on File | 105 |
| Median Price per Sqft | $622 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $7,600 |
| Median Year Built | 1965 |
| Median Ownership Tenure | 16 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
5 bd · 2 ba · 1,932 sqft · built 1964 · 0.111 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $439,000Sep 2001 | $9,0322025 | —Dec 2018 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,932 sqft · built 1964 · 0.124 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $367,500Dec 2010 | $6,7892025 | Amount on Record Jan 2005 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 2 ba · 1,848 sqft · built 1963 · 0.179 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $365,500Jan 2009 | $6,7872025 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
0.256 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $227,100Apr 2023 | $3,0672025 | Amount on Record Sep 2015 | Owner on Record | Assessor + 1 DocumentUpdated Sep 2026 |
4 bd · 2 ba · 1,920 sqft · built 1963 · 0.215 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $322,000Apr 2000 | $7,0932025 | —Apr 2000 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
5 bd · 2 ba · 1,584 sqft · built 1963 · 0.151 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $610,000Mar 2005 | $11,8312024 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Apr 2026 |
3 bd · 2 ba · 1,092 sqft · built 1963 · 0.136 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $590,000Oct 2015 | $9,6622025 | Amount on Record Sep 2013 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
4 bd · 2 ba · 1,287 sqft · built 1964 · 0.136 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,5502025 | 2 Owners on Record | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,784 sqft · built 1978 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000Mar 2023 | $16,0292025 | Amount on Record May 2019 | Owner on Record Owner Occupied | Assessor + 8 DocumentsUpdated Sep 2026 |
3 bd · 1 ba · 1,744 sqft · built 1978 · 0.141 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,188,000Jan 2022 | $14,2252025 | Owner on Record Owner Occupied | Assessor + 6 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 1,848 sqft · built 1963 · 0.111 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $823,000Jan 2018 | $12,7542025 | Amount on Record Mar 2014 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 3 ba · 1,430 sqft · built 1964 · 0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $230,000Aug 1998 | $5,4862025 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2 ba · 1,848 sqft · built 1963 · 0.118 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $760,000Nov 2016 | $12,0672025 | —Dec 2004 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 2,280 sqft · built 1965 · 0.218 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,360,000Jan 2025 | $7,1192025 | Amount on Record Sep 2009 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
5 bd · 2 ba · 2,040 sqft · built 1963 · 0.199 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,000Feb 2012 | $5,8492025 | Amount on Record Oct 2005 | Owner on Record | Assessor + 1 DocumentUpdated Sep 2026 |
3 bd · 3 ba · 1,430 sqft · built 1964 · 0.158 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $355,000Nov 2010 | $6,6752025 | Amount on Record Sep 2010 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 2.5 ba · 1,430 sqft · built 1964 · 0.168 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $556,000Dec 2013 | $9,5352025 | Amount on Record Jan 1998 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 1,920 sqft · built 1963 · 0.122 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $655,000Oct 2005 | $12,1412025 | Amount on Record May 2002 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
5 bd · 2 ba · 1,584 sqft · built 1963 · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Aug 2010 | $6,5062025 | Amount on Record Aug 2004 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
3 bd · 3 ba · 1,430 sqft · built 1964 · 0.182 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,190,000May 2024 | $16,2552025 | —Nov 2020 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 1,848 sqft · built 1963 · 0.111 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $134,000Sep 2012 | $6,6702025 | Amount on Record Jan 2009 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
3 bd · 2 ba · 1,092 sqft · built 1965 · 0.135 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $185,000Jan 1998 | $4,5732025 | —Mar 1998 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2 ba · 1,642 sqft · built 1965 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $235,000Dec 2011 | $4,5722025 | Amount on Record May 2006 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
4 bd · 2 ba · 1,848 sqft · built 1963 · 0.146 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000May 2023 | $16,8362025 | Amount on Record Jan 2015 | 3 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2 ba · 1,529 sqft · built 1965 · 0.313 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $615,000Feb 2015 | $10,2642025 | —Jan 2015 | 2 Owners on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 2 ba · 1,988 sqft · built 1963 · 0.272 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Aug 2006 | $12,1392024 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Apr 2026 |
3 bd · 2 ba · 1,092 sqft · built 1965 · 0.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,438,000Nov 2000 | $4,9852024 | Amount on Record Oct 1994 | Owner on Record Owner Occupied | Assessor + 5 DocumentsUpdated Apr 2026 |
4 bd · 2 ba · 2,088 sqft · built 1963 · 0.24 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,300,000May 2026 | $13,1862025 | Amount on Record Dec 2015 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3 bd · 2.5 ba · 1,430 sqft · built 1965 · 0.142 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $274,000Apr 1999 | $6,3562025 | Amount on Record Jun 1996 | 2 Owners on Record Owner Occupied | AssessorUpdated Sep 2026 |
5 bd · 3 ba · 2,362 sqft · built 1964 · 0.1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000Oct 2009 | $18,9622025 | —Apr 2022 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 1 ba · 1,008 sqft · built 1965 · 0.137 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,5142025 | —May 2016 | Owner on Record | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,339 sqft · built 1965 · 0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,000Jun 2011 | $5,9482025 | Amount on Record Jan 2011 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3 bd · 1 ba · 1,008 sqft · built 1965 · 0.156 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,0962025 | Owner on Record | AssessorUpdated Aug 2026 |
5 bd · 2 ba · 1,932 sqft · built 1965 · 0.205 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Aug 1994 | $5,3622025 | —Nov 2021 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,092 sqft · built 1965 · 0.121 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,4552025 | —Jul 2020 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
4 bd · 1.5 ba · 1,942 sqft · built 1965 · 0.166 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,140,000Dec 2024 | $15,3232025 | —Dec 2024 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,400 sqft · built 1965 · 0.153 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $630,000Aug 2015 | $10,3482025 | —Aug 2015 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
3 bd · 2 ba · 1,668 sqft · built 1965 · 0.442 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000Mar 1998 | $5,0792025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2.5 ba · 1,390 sqft · built 1981 · 0.168 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,2692025 | —Jul 2016 | Owner on Record | AssessorUpdated Aug 2026 |
4 bd · 2 ba · 1,924 sqft · built 1965 · 0.101 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Sep 2012 | $8,6182025 | Amount on Record Aug 2007 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 1,430 sqft · built 1965 · 0.188 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $348,000May 2009 | $6,5032025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
5 bd · 2 ba · 1,924 sqft · built 1966 · 0.102 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $624,000Jan 2015 | $10,3122025 | —Jan 2018 | Owner on Record Owner Occupied | Assessor + 7 DocumentsUpdated Sep 2026 |
4 bd · 2 ba · 1,946 sqft · built 1965 · 0.113 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2004 | $1,9832025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 3 ba · 1,430 sqft · built 1965 · 0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $509,000Dec 2003 | $9,9802025 | —Dec 2007 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
5 bd · 2 ba · 2,418 sqft · built 1965 · 0.123 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $275,000Jan 2002 | $9,5162025 | Amount on Record Jul 1998 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
3 bd · 2.5 ba · 1,430 sqft · built 1965 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $392,000Jan 2001 | $8,3902025 | Amount on Record Mar 1994 | Owner on Record | AssessorUpdated Sep 2026 |
4 bd · 2 ba · 1,932 sqft · built 1965 · 0.145 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $385,000Nov 2011 | $6,9502025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
5 bd · 3 ba · 2,434 sqft · built 1965 · 0.147 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $395,000Jan 2009 | $7,3552025 | Amount on Record Aug 2008 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
4 bd · 2 ba · 2,016 sqft · built 1965 · 0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2006 | $10,8232025 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 3 ba · 1,430 sqft · built 1965 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Dec 2008 | $8,0862025 | Amount on Record Sep 2008 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
5 bd · 2 ba · 1,932 sqft · built 1965 · 0.12 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $356,000Jun 2009 | $6,6332025 | Amount on Record Jul 2008 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
3 bd · 2.5 ba · 1,132 sqft · built 1965 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $495,000Sep 2005 | $9,3842025 | Amount on Record May 1995 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Sep 2026 |
4 bd · 2 ba · 2,016 sqft · built 1965 · 0.123 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $388,500Oct 2009 | $7,2562025 | —Apr 2012 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
5 bd · 2 ba · 1,932 sqft · built 1965 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $175,000Jan 2011 | $7,0532025 | Amount on Record Sep 2009 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
3 bd · 2.5 ba · 1,430 sqft · built 1965 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 1998 | $1,7972025 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
4 bd · 2 ba · 2,016 sqft · built 1965 · 0.17 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $450,000Jan 2010 | $8,7372025 | Amount on Record Oct 2009 | Owner on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 2 ba · 1,320 sqft · built 1965 · 0.154 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $318,000May 2012 | $5,9762025 | Amount on Record Aug 2005 | Owner on Record | AssessorUpdated Oct 2025 |
3 bd · 2 ba · 2,016 sqft · built 1965 · 0.124 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,250,000Sep 2021 | $15,1092025 | Amount on Record Jun 2009 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
5 bd · 2 ba · 1,932 sqft · built 1967 · 0.124 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,130,000Aug 2025 | $5,1972025 | Amount on Record May 1996 | 3 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
2,144 sqft · built 1979 · 0.186 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,0182025 | —Apr 2014 | Owner on Record | Assessor + 1 DocumentUpdated Jan 2026 |
3 bd · 2 ba · 2,016 sqft · built 1966 · 0.144 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Apr 2015 | $8,5192025 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
1,974 sqft · built 1978 · 0.176 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,6542025 | —May 2016 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,974 sqft · built 1978 · 0.175 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,6202025 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,974 sqft · built 1978 · 0.138 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,5662025 | —Dec 1997 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 6 ba · 4,334 sqft · built 2008 · 0.861 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2011 | $14,4422025 | Amount on Record Mar 2008 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
5 bd · 3 ba · 4,347 sqft · built 1992 · 0.516 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $670,000Jun 2000 | $13,8432025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 3 ba · 3,080 sqft · built 1995 · 0.312 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $460,000Apr 1999 | $9,9482025 | —Apr 1999 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 3 ba · 2,771 sqft · built 1990 · 0.516 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,025,000Feb 2020 | $14,9952025 | Amount on Record May 2005 | 3 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
5 bd · 3 ba · 2,822 sqft · built 1992 · 0.326 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $138,000Apr 1991 | $9,3892025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
1.32 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Mar 2021 | $7,6002025 | 3 Owners on Record | Assessor + 3 DocumentsUpdated Oct 2025 |
5 bd · 3 ba · 4,251 sqft · built 1993 · 0.65 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2005 | $11,3092025 | —Mar 2018 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |