Alameda County property record for 18800 Stanton Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,446 sqft · built 1956 |
| Lot Size | 0.127 acres (5,550 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $509,000 (Nov 2007) |
| Tax Bill | $8,675 (2025) |
| Deeds & Mortgages | May 2022 Mortgage Apr 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 84B-415-4-8 |
| Primary APN | 84B-415-4-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,446 sqft Living Area |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,550 sqft (0.127 acres) |
| Street Address | 18800 STANTON AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2716 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00008 BLK: 0004 AR: 084B PAGE: 0415 |
| Legal Subdivision | VALLEY CREST GARDENS |
| Legal Lot Number | 10 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 430600 |
18800 Stanton Ave is owned and occupied by two individuals who bought it in November 2007.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| May 3, 2022 | Deed of Trust, Mortgage · FHA Mortgage PATELCO CU |
| Apr 12, 2021 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Feb 19, 2020 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage PATELCO CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 15, 2007 · Amount on File |
| Deed Sale | Nov 15, 2007 · Amount on File |
| Deed Document Number | 2007395187 |
| Prior Transfer Date | Oct 8, 2004 |
| Prior Transfer Doc | 0000470410 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Transaction Type | Mortgage |
| Record Updated | May 25, 2022 |
| Title Company | ACCOMODATION, ACCOMMODATION |
| Name | Verified Name |
|---|---|
| Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Document Number | 0000087058 |
|---|---|
| Date | May 3, 2022 |
| Instrument | 2022087058 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 180 Months |
| Due | May 1, 2037 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Transaction Type | Mortgage |
| Record Updated | May 7, 2021 |
| Title Company | US FIDELITY TITLE COMPANY, FIDELITY TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Document Number | 0000144754 |
|---|---|
| Date | Apr 12, 2021 |
| Instrument | 2021144754 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18800 STANTON AVE, CASTRO VALLEY, CA 94546-2716 |
| Transaction Type | Mortgage |
| Record Updated | Feb 7, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000040024 |
|---|---|
| Date | Feb 19, 2020 |
| Instrument | 2020040024 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Mar 1, 2040 |
The 2025 property tax bill for 18800 Stanton Ave was $8,675 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $674,901 (+0.95%) Land $204,570 Building $477,331 | ||
| 2025 | $8,675.00 Homeowner's exemption | $668,535 Land $200,560 Building $467,975 | |
| 2023 | $8,340.00 Homeowner's exemption | $642,581 Land $192,774 Building $449,807 | $827,460 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18800 Stanton Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1995.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 2 (1995–1998) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jan 1998 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 18800 Stanton Ave is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | None beyond 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 752 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 | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Unwired, Verizon.
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