Alameda County property records for 49 addresses on Monaco Ave, Union City, CA · Last verified August 2026
| Properties | 49 |
|---|---|
| Median Sale Price | $1,085,000 |
| Deeds and Mortgages on File | 96 |
| Median Price per Sqft | $624 |
| Owner Occupied | 92% |
| Median Annual Tax Bill | $8,672 |
| Median Year Built | 1965 |
| Median Ownership Tenure | 10 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 2 ba · 1,848 sqft · 0.143 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Jul 2009 | $6,2232025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 1 ba · 1,008 sqft · 0.125 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $285,000Sep 1999 | $6,3752025 | Amount on Record Feb 2003 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2.5 ba · 2,010 sqft · 0.121 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,1912025 | —May 2018 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,600 sqft · 0.135 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $105,000Aug 2001 | $8,1402025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 2,018 sqft · 0.132 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,2142025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 2 ba · 1,920 sqft · 0.135 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2022 | $5,4902025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2 ba · 1,584 sqft · 0.125 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $890,000Mar 2020 | $13,2202025 | —Mar 2008 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
5 bd · 5 ba · 3,062 sqft · 0.252 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $782,500Feb 2013 | $13,0082025 | Amount on Record May 2012 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
5 bd · 3 ba · 2,064 sqft · 0.163 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $395,000Mar 2005 | $11,3252024 | —Apr 2017 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,287 sqft · 0.148 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Nov 2011 | $5,6912025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 3 ba · 1,899 sqft · 0.194 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Aug 2019 | $13,4202025 | —Jun 2015 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,479 sqft · 0.372 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $565,000Jul 2013 | $9,5882025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 2.5 ba · 1,974 sqft · 0.244 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $280,000Sep 1989 | $7,4372025 | —Sep 2005 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2 ba · 2,016 sqft · 0.201 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,300,000Aug 2022 | $18,0052025 | Amount on Record Feb 2022 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,008 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,420,000Oct 2025 | $9,7282025 | —Mar 2017 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Dec 2025 |
5 bd · 2 ba · 1,974 sqft · 0.137 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $472,000Jul 2002 | $9,4742025 | Amount on Record Nov 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,092 sqft · 0.13 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $810,000Jun 2018 | $12,5672025 | 3 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
2 bd · 2 ba · 1,974 sqft · 0.134 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $66,500Jul 1983 | $4,3562025 | —Oct 2020 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 1,287 sqft · 0.253 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $360,000Apr 2009 | $6,5352025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 2 ba · 2,016 sqft · 0.165 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $640,000Jan 2016 | $10,4092025 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
2,502 sqft · Built 1979 · 0.147 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,2242025 | —Nov 1994 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 2 ba · 1,932 sqft · 0.114 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Sep 2004 | $10,0822025 | Amount on Record Jan 1996 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 2 ba · 1,092 sqft · 0.118 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,050,000May 2023 | $14,7232025 | 3 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 1,287 sqft · 0.235 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $775,000Feb 2019 | $11,7582025 | —Nov 2022 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,092 sqft · 0.223 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $810,000Apr 2019 | $12,2512025 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,092 sqft · 0.101 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Jul 2010 | $6,1832025 | Amount on Record Oct 2008 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
3 bd · 2 ba · 1,652 sqft · 0.114 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $80,000Jun 2020 | $12,6812024 | Amount on Record Jan 2006 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,918 sqft · 0.136 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,045,000Oct 2022 | $14,6572025 | Amount on Record Oct 1998 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 3 ba · 2,176 sqft · 0.169 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000Oct 2018 | $17,0372025 | Amount on Record Aug 2017 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
5 bd · 2 ba · 1,944 sqft · 0.107 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,085,000Oct 2021 | $16,0272025 | 2 Names on Record | Assessor + 4 DocumentsUpdated Oct 2025 |
5 bd · 2 ba · 1,944 sqft · 0.223 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 1985 | $4,1142025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2.5 ba · 3,153 sqft · 0.348 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,7762025 | —Jul 2019 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 2,250 sqft · 0.174 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1999 | $11,2702025 | —Mar 2004 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2 ba · 2,016 sqft · 0.099 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,8282025 | —Sep 2021 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,703 sqft · 0.339 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1988 | $4,1142025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,092 sqft · 0.102 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,9332025 | —Aug 2024 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 4 ba · 3,789 sqft · 0.335 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,1972025 | —Feb 1997 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,092 sqft · 0.202 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Feb 2018 | $13,0532025 | Amount on Record May 2017 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
6 bd · 2 ba · 1,932 sqft · 0.167 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Oct 2022 | $8,6722025 | Amount on Record May 2004 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,787 sqft · 0.446 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $540,000Mar 2009 | $9,6232025 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 2,016 sqft · 0.099 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,259,000Sep 2025 | $5,0332025 | —Dec 2022 | 3 Names on Record | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,787 sqft · 0.351 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,8592025 | 1 Name on Record | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,836 sqft · 0.226 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,280,000Oct 2025 | $13,7412025 | Amount on Record Aug 2019 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jan 2026 |
3 bd · 2 ba · 1,786 sqft · 0.231 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $335,000Mar 2012 | $6,1572025 | —Jan 2015 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 2.5 ba · 1,974 sqft · 0.141 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $423,000Jun 2003 | $8,5782025 | —Jun 2003 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,703 sqft · 0.241 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,070,000Apr 2018 | $16,2122025 | Amount on Record Mar 2013 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
4 bd · 2 ba · 1,582 sqft · 0.184 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,000Apr 1999 | $6,9802025 | —Apr 2021 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,703 sqft · 0.236 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,275,000Oct 2020 | $18,3532025 | —Feb 2016 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
4 bd · 3 ba · 2,625 sqft · 0.244 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,2172025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | High this street's cells rank at the 73rd percentile of exposed land nationally · 50th in California |
|---|---|
| Wildfire Likelihood | High — about 1 in 177 per year |
| Exposure | Direct 1 of 3 cells directly exposed · 3 adjoin burnable vegetation |