Alameda County property records for 21 addresses on Acorn St, Castro Valley, CA · Last verified October 2026
| Properties | 21 |
|---|---|
| Median Sale Price | $630,000 |
| Deeds and Mortgages on File | 24 |
| Median Price per Sqft | $432 |
| Owner Occupied | 81% |
| Median Annual Tax Bill | $8,308 |
| Median Year Built | 1950 |
| Median Ownership Tenure | 18 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 1 ba · 1,042 sqft · built 1951 · 0.133 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $740,000Feb 2020 | $10,3362025 | Amount on Record Apr 2017 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2026 |
3 bd · 1 ba · 1,071 sqft · built 1950 · 0.117 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $160,000Sep 1988 | $4,3292025 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,548 sqft · built 1951 · 0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $229,000May 1992 | $5,0602025 | —Jan 2015 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
3 bd · 1 ba · 1,024 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,8052025 | —Sep 2005 | 3 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 1 ba · 1,042 sqft · built 1951 · 0.117 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $838,000Sep 2022 | $10,5572025 | —Jun 1994 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
3 bd · 2 ba · 1,645 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $450,000Jan 2004 | $8,3362025 | —Jun 1997 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3 bd · 1 ba · 1,061 sqft · built 1951 · 0.117 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,7492025 | —Apr 2020 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 1,871 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $630,000Jan 2015 | $9,8032025 | 2 Owners on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 1,802 sqft · built 1951 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $402,000Jul 2008 | $8,4812025 | Amount on Record Nov 2006 | Owner on Record Owner Occupied | AssessorUpdated Sep 2026 |
5 bd · 3 ba · 2,599 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $219,500Jul 1999 | $8,1172025 | —Jul 1999 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2 ba · 1,600 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $415,000Sep 2010 | $7,1422025 | —Sep 2010 | Owner on Record | AssessorUpdated Oct 2026 |
4 bd · 2 ba · 1,787 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $495,000Sep 2008 | $8,3082025 | Amount on Record Jun 2008 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2026 |
4 bd · 2 ba · 1,738 sqft · built 1950 · 0.141 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $570,500Mar 2013 | $9,0762025 | —Mar 2013 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2026 |
3 bd · 1 ba · 1,071 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $170,000Mar 1996 | $4,2352025 | —Mar 1996 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 1,744 sqft · built 1950 · 0.115 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000Apr 2023 | $14,9872025 | Amount on Record Aug 2022 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 1,134 sqft · built 1950 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $335,000May 2010 | $5,8892025 | —Feb 2010 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3 bd · 1 ba · 1,226 sqft · built 1950 · 0.12 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000May 2015 | $8,3852025 | —May 2015 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2.5 ba · 1,944 sqft · built 1950 · 0.117 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $580,000Oct 2006 | $9,9552025 | —Aug 2020 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3 bd · 2 ba · 1,449 sqft · built 1950 · 0.103 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $565,000May 2005 | $10,1532025 | —Sep 2007 | Owner on Record | Assessor + 5 DocumentsUpdated Oct 2026 |
4 bd · 2 ba · 1,324 sqft · built 1950 · 0.118 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $164,000Oct 1996 | $4,3892025 | —Aug 2016 | Owner on Record | AssessorUpdated Aug 2026 |
3 bd · 1 ba · 1,064 sqft · built 1950 · 0.126 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Jun 2002 | $6,8872025 | Amount on Record Jul 1998 | 2 Owners on Record Owner Occupied | AssessorUpdated Oct 2026 |