Alameda County property record for 18942 Patton Dr, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,572 sqft · built 1947 |
| Lot Size | 0.131 acres (5,710 sqft) |
| Owner | Trust Name on File |
| Last Sale | $193,000 (Jul 1995) |
| Tax Bill | $4,652 (2025) |
| Deeds & Mortgages | Mar 2024 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1351-6 |
| Primary APN | 84D-1351-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,572 sqft Living Area |
| 1st Floor Area | 1,572 sqft |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,710 sqft (0.131 acres) |
| Street Address | 18942 PATTON DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3135 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00006 BLK: AR: 084D PAGE: 1351 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 430700 |
18942 Patton Dr is held in a trust since July 1995.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 5036 CAMINO ALTA MIRA, CASTRO VALLEY, CA 94546-1536 |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Last Sale | Jul 3, 1995 · Amount on File |
| Deed Sale | Jul 3, 1995 · Amount on File |
| Deed Document Number | 1995145691 |
| Prior Transfer Date | Apr 16, 1994 |
| Prior Transfer Doc | 0000255937 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 14, 2024 |
| Property Address | 18942 PATTON DR, CASTRO VALLEY, CA 94546-3135 |
| Document Number | 0000036011 |
| Instrument Date | Feb 22, 2024 |
| Instrument | 2024036011 |
| Transaction Type | Transfer |
| Record Updated | Apr 23, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 5036 CAMINO ALTA MIRA, CASTRO VALLEY, CA 94546-1536 |
The 2025 property tax bill for 18942 Patton Dr was $4,652.
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 | $327,015 (+2%) Land $98,274 Building $228,741 | ||
| 2025 | $4,652.00 | $320,603 Land $96,347 Building $224,256 | |
| 2023 | $4,453.00 | $308,155 Land $92,606 Building $215,549 | $986,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18942 Patton Dr in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 | 5 in force |
| Nearby Flood Claims | 1 (1998) |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 18942 Patton Dr is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 938 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 in parts of the area | 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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