Alameda County property record for 20157 Stanton Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,287 sqft · built 1949 |
| Lot Size | 0.101 acres (4,424 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $570,000 (Jun 2016) |
| Tax Bill | $8,943 (2025) |
| Deeds & Mortgages | Jun 2019 Mortgage Nov 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84A-210-2-1 |
| Primary APN | 84A-210-2-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,287 sqft Living Area |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 4,424 sqft (0.101 acres) |
| Parking Spaces | 1 Parking Space |
| Street Address | 20157 STANTON AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-5204 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUBD:STANTON TR#:1 |
| Legal Subdivision | STANTON |
| Legal Tract | 1 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 430600 |
Source: Alameda County records, as of October 20, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 20157 STANTON AVE, CASTRO VALLEY, CA 94546-5204 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jun 4, 2019 | Deed of Trust, Mortgage · ARM FREMONT BANK |
| Nov 6, 2020 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 3, 2016 · Amount on Record |
| Deed Sale | Jun 3, 2016 · Amount on Record |
| Prior Sale | Feb 27, 2013 |
| Deed Document Number | 2016139734 |
| Record Updated | Jun 7, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20157 STANTON AVE, CASTRO VALLEY, CA 94546-5204 |
| Transaction Type | Mortgage |
| Record Updated | Aug 22, 2022 |
| Title Company | WFG NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000104368 |
|---|---|
| Date | Jun 4, 2019 |
| Instrument | 2019104368 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 1, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.25% |
| Type Change Date | Jun 1, 2026 |
| Change Frequency | Annually |
| Min Rate At Change | 2.87% |
| Max Rate At Change | 10.2% |
| Index | 1-Year LIBOR |
| Max Rate | 10.2% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20157 STANTON AVE, CASTRO VALLEY, CA 94546-5204 |
| Transaction Type | Mortgage |
| Record Updated | Aug 22, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 20157 STANTON AVE, CASTRO VALLEY, CA 94546-5204 |
| Document Number | 0000299365 |
|---|---|
| Date | Nov 6, 2020 |
| Instrument | 2020299365 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 1, 2050 |
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $8,943.00 (+4%) Homeowner's exemption | $691,228 (+4.04%) Land $202,424 Building $488,804 |
| 2023 | $8,599.00 Homeowner's exemption | $664,391 Land $194,565 Building $469,826 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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 709 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 · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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