Alameda County property record for 18977 Patton Dr, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 2,360 sqft · built 1948 |
| Lot Size | 0.115 acres (5,022 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $675,000 (Nov 2019) |
| Tax Bill | $14,108 (2025) |
| Deeds & Mortgages | Nov 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1341-47 |
| Primary APN | 84D-1341-47 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 7 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,360 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 5,022 sqft (0.115 acres) |
| Street Address | 18977 PATTON DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3134 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00047 BLK: AR: 084D PAGE: 1341 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 430700 |
Source: Alameda County records, as of September 28, 2026
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 | 18977 PATTON DR, CASTRO VALLEY, CA 94546-3134 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 13, 2019 · Amount on Record |
| Deed Sale | Nov 13, 2019 · Amount on Record |
| Prior Sale | Jun 24, 2005 · Amount on Record |
| Deed Document Number | 2019231337 |
| Prior Transfer Date | Jun 16, 2005 |
| Prior Transfer Doc | 0000259890 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Nov 13, 2019 |
| Property Address | 18977 PATTON DR, CASTRO VALLEY, CA 94546-3134 |
| Document Number | 0000231337 |
| Instrument Date | Nov 8, 2019 |
| Instrument | 231337 |
| Transaction Type | Transfer |
| Record Updated | Dec 12, 2019 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $742.50 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 18977 PATTON DR CASTRO VALLEY CA 945463134, CASTRO VALLEY, CA 94546-3134 |
| Document Number | 231338 |
|---|---|
| Date | Nov 13, 2019 |
| Instrument | 231338 |
| Name | CALIBER HM LOANS |
|---|---|
| Type | Funding / Finance Company |
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 12, 2049 |
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 | $1,080,546 (+2%) Land $225,888 Building $854,658 | ||
| 2025 | $14,108.00 (+31.76%) | $1,059,361 (+36.01%) Land $221,460 Building $837,901 | |
| 2023 | $10,707.00 | $778,898 Land $212,861 Building $566,037 | $771,300 |
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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