Alameda County property records for 11 addresses on Gem Ct, Castro Valley, CA · Last verified August 2026
| Properties | 11 |
|---|---|
| Median Sale Price | $405,000 |
| Deeds and Mortgages on File | 8 |
| Median Price per Sqft | $382 |
| Owner Occupied | 64% |
| Median Annual Tax Bill | $6,325 |
| Median Year Built | 1950 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 1 ba · 1,060 sqft · 0.296 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $610,000Jun 2005 | $10,8192025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 1 ba · 1,060 sqft · 0.206 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $405,000Mar 2010 | $6,9552025 | 3 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
2 bd · 2 ba · 1,164 sqft · 0.115 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $205,000Sep 1990 | $5,2322025 | 1 Name on Record | AssessorUpdated Aug 2026 |
3 bd · 1 ba · 1,060 sqft · 0.203 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2007 | $3,1672025 | —Aug 2006 | 2 Names on Record | AssessorUpdated Aug 2026 |
3 bd · 1 ba · 1,060 sqft · 0.207 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,6042025 | —May 2005 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 1 ba · 1,373 sqft · 0.124 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $203,000Sep 1998 | $4,6242025 | —Jul 2017 | 3 Names on Record | Assessor + 3 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,492 sqft · 0.41 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,9082025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2.5 ba · 2,032 sqft · 0.203 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000Aug 2024 | $13,7832025 | Amount on Record Jun 2000 | 2 Names on Record Owner Occupied | AssessorUpdated May 2026 |
3 bd · 2 ba · 1,488 sqft · 0.422 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 1999 | $6,5362025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 1 ba · 1,060 sqft · 0.194 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,7602025 | —Sep 2019 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 2,060 sqft · 0.135 acres · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $348,000May 2010 | $6,3252025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |