Alameda County property records for 11 addresses on 173rd Ave, Castro Valley, CA · Last verified August 2026
| Properties | 11 |
|---|---|
| Median Sale Price | $525,500 |
| Deeds and Mortgages on File | 15 |
| Median Price per Sqft | $477 |
| Owner Occupied | 82% |
| Median Annual Tax Bill | $7,003 |
| Median Year Built | 1945 |
| Median Ownership Tenure | 11 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 1 ba · 1,264 sqft · 0.126 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $438,000Aug 2015 | $7,0582025 | —Nov 2021 | 3 Names on Record | Assessor + 1 DocumentUpdated Oct 2025 |
2 bd · 1 ba · 830 sqft · 0.112 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $148,000Dec 1991 | $3,9072025 | —Jul 2014 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 2 ba · 1,425 sqft · 0.14 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $680,000Jan 2021 | $9,6572025 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2025 |
2 bd · 1 ba · 1,080 sqft · 0.136 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $51,000Nov 1992 | $3,9642025 | —May 2011 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,627 sqft · 0.128 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,500Aug 2018 | $7,7832025 | 3 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Oct 2025 |
3 bd · 1 ba · 1,137 sqft · 0.114 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $134,000Apr 1994 | $3,9382025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 1,461 sqft · 0.122 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $295,000Dec 2001 | $6,0702025 | —Jun 2000 | 1 Name on Record | AssessorUpdated Aug 2026 |
2 bd · 1 ba · 860 sqft · 0.111 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $470,000Aug 2016 | $7,3802025 | Amount on Record Jun 2015 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
3 bd · 1 ba · 1,215 sqft · 0.106 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Dec 2015 | $7,0032025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 2 ba · 1,752 sqft · 0.143 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Dec 2023 | $11,8662024 | Amount on Record Nov 2006 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated May 2026 |
3 bd · 1.5 ba · 1,245 sqft · 0.093 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $717,000Mar 2026 | $1,7792025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |