Alameda County property record for 1940 170th Ave, Castro Valley, CA 94546
| Property Type | Mixed Use Store/Office |
|---|---|
| Details | 3 bd · 2.5 ba · 2,341 sqft · built 1948 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $408,000 (Jul 2013) |
| Tax Bill | $7,430 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-236-1 |
| Primary APN | 80A-236-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Units | 3 Units |
| Stories | 2 Stories |
| Building Area | 2,341 sqft Total Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 5,000 sqft (0.115 acres) |
| Terrain | Above Road/Slope |
| View / Lot | Average |
| Street Address | 1940 170TH AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3801 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Mixed Use Store/Office |
| Legal Description | LOT: 00001 BLK: AR: 080A PAGE: 0236 ;LOT: 00020 BLK: AR: 080A PAGE: 0236 |
| Legal Subdivision | EL PORTAL |
| Legal Lot Number | 347&3 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 430500 |
1940 170th Ave, a commercial property, is owned by two individuals who bought it in July 2013.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 45 EL BONITO WAY, MILLBRAE, CA 94030-2224 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 11, 2013 · Amount on File |
| Deed Sale | Jul 11, 2013 · Amount on File |
| Prior Sale | Nov 9, 2011 · Amount on File |
| Deed Document Number | 2013238258 |
| Prior Transfer Date | Nov 2, 2011 |
| Prior Transfer Doc | 0000320270 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1940 170th Ave was $7,430.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $453,865 (+2%) Land $162,541 Building $291,324 | |
| 2025 | $7,430.00 | $444,968 Land $159,355 Building $285,613 |
| 2023 | $6,220.00 | $427,693 Land $153,168 Building $274,525 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1940 170th Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 1940 170th Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 796 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Etheric Networks, GeoLinks, T-Mobile, Unwired, Verizon.
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