Alameda County property record for 18956 Patton Dr, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 994 sqft · built 1952 |
| Lot Size | 0.131 acres (5,720 sqft) |
| Owner | Company Name on Record |
| Last Sale | $410,000 (Sep 2013) |
| Tax Bill | $6,717 (2025) |
| Deeds & Mortgages | Sep 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1351-8 |
| Primary APN | 84D-1351-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 994 sqft Living Area |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,720 sqft (0.131 acres) |
| Street Address | 18956 PATTON DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3135 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00008 BLK: AR: 084D PAGE: 1351 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 430700 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 18956 PATTON DR, CASTRO VALLEY, CA 94546-3135 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 12, 2013 · Amount on Record |
| Deed Sale | Sep 12, 2013 · Amount on Record |
| Deed Document Number | 2013305192 |
| Last Transfer Date | Sep 18, 2023 |
| Transfer Doc | 0000110944 |
| Record Updated | Sep 20, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 28, 2023 |
| Property Address | 18956 PATTON DR, CASTRO VALLEY, CA 94546-3135 |
| Document Number | 0000110944 |
| Instrument Date | Sep 18, 2023 |
| Instrument | 2023110944 |
| Transaction Type | Transfer |
| Record Updated | Oct 23, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18956 PATTON DR, CASTRO VALLEY, CA 94546-3135 |
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 | $505,630 (+0.61%) Land $153,789 Building $358,841 | ||
| 2025 | $6,717.00 (+4.2%) Homeowner's exemption | $502,581 (+4.04%) Land $150,774 Building $351,807 | |
| 2023 | $6,446.00 Homeowner's exemption | $483,070 Land $144,921 Building $338,149 | $778,500 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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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