Alameda County property records for 15 addresses on 170th Ave, Castro Valley, CA · Last verified August 2026
| Properties | 15 |
|---|---|
| Median Sale Price | $850,000 |
| Deeds and Mortgages on File | 36 |
| Median Price per Sqft | $491 |
| Owner Occupied | 73% |
| Median Annual Tax Bill | $9,750 |
| Median Year Built | 1949 |
| Median Ownership Tenure | 7 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2.5 ba · 2,341 sqft · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $408,000Jul 2013 | $7,4302025 | Amount on Record Nov 2011 | 1 Name on Record | AssessorUpdated Oct 2025 |
5 bd · 4 ba · 2,195 sqft · 0.081 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $290,000Apr 2000 | $6,9912025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
9 bd · 4 ba · 3,841 sqft · 0.294 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $395,000Dec 2010 | $10,7282025 | —Sep 2019 | 1 Name on Record | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 3.5 ba · 1,405 sqft · 0.105 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,050,000Nov 2021 | $14,1752025 | Amount on Record Apr 2019 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
2 bd · 1 ba · 928 sqft · 0.126 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $154,000May 1995 | $3,9542025 | Amount on Record Dec 1993 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 3 ba · 1,912 sqft · 0.114 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2005 | $4,6232025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 3 ba · 1,729 sqft · 0.157 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Jul 2023 | $11,2212025 | Amount on Record Sep 2004 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
2 bd · 1 ba · 1,246 sqft · 0.114 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,4982025 | —Aug 2021 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
2 bd · 1 ba · 1,160 sqft · 0.189 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $715,000May 2023 | $9,7502025 | —May 2023 | 1 Name on Record | Assessor + 4 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,736 sqft · 0.15 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $830,000Aug 2022 | $10,5762025 | Amount on Record May 2009 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
3 bd · 2 ba · 1,768 sqft · 0.126 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $575,000Jul 2016 | $8,8362025 | —Jul 2019 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 1,839 sqft · 0.152 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $989,000Dec 2025 | $4,7682025 | —Jan 2018 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jan 2026 |
4 bd · 3 ba · 2,153 sqft · 0.128 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $815,000Feb 2023 | $10,6632024 | Amount on Record May 2015 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated May 2026 |
1,909 sqft · Built 1977 · 0.178 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $898,000Sep 2019 | $12,3422024 | Amount on Record Apr 2000 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated May 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach of burnable land |