Alameda County property records for 9 addresses on Ruby St, Castro Valley, CA · Last verified August 2026
| Properties | 9 |
|---|---|
| Median Sale Price | $325,000 |
| Deeds and Mortgages on File | 20 |
| Median Price per Sqft | $310 |
| Owner Occupied | 56% |
| Median Annual Tax Bill | $5,767 |
| Median Year Built | 1947 |
| Median Ownership Tenure | 9 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2 bd · 1 ba · 897 sqft · 0.172 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2020 | $8,4912025 | 2 Names on Record | Assessor + 6 DocumentsUpdated Oct 2025 |
2 bd · 1 ba · 812 sqft · 0.124 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,4402025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 1 ba · 777 sqft · 0.172 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,7672025 | —Jun 2003 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 2 ba · 1,270 sqft · 0.125 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $825,000Aug 2022 | $11,1022025 | Amount on Record Apr 2011 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
6 bd · 3 ba · 2,320 sqft · 0.121 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $720,000Apr 2017 | $11,6662025 | —Oct 2014 | 2 Names on Record | Assessor + 4 DocumentsUpdated Oct 2025 |
2.95 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,9292025 | 1 Name on Record | Assessor + 6 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 1,080 sqft · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $185,000May 1989 | $5,0272025 | —May 1998 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
1 bd · 1 ba · 966 sqft · 0.096 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $325,000Mar 2004 | $6,3932025 | Amount on Record Oct 2002 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
2 bd · 1 ba · 1,104 sqft · 0.096 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $139,000Aug 1988 | $3,9142025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |