Alameda County property record for 1987 Joan Dr, Castro Valley, CA 94578
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,962 sqft · built 1990 |
| Lot Size | 0.158 acres (6,921 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $499,000 (May 2015) |
| Tax Bill | $8,498 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 79-6-10 |
| Primary APN | 79-6-10 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,962 sqft Living Area |
| Year Built | Built 1990 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 6,921 sqft (0.158 acres) |
| Street Address | 1987 JOAN DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94578-1322 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BLK:B SUBD:HILLCREST KNOLLS |
| Legal Subdivision | HILLCREST KNOLLS |
| Legal Block | B |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 432800 |
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 | 1987 JOAN DR, CASTRO VALLEY, CA 94578-1322 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 22, 2015 · Amount on Record |
| Deed Sale | May 22, 2015 · Amount on Record |
| Prior Sale | May 22, 2015 · Amount on Record |
| Deed Document Number | 0000136397 |
| Last Transfer Date | Jan 22, 2016 |
| Transfer Doc | 0000014705 |
| Record Updated | Jun 8, 2026 |
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Leandro Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $8,498.00 (+5.06%) Homeowner's exemption | $619,468 (+4.04%) Land $185,840 Building $433,628 |
| 2023 | $8,089.00 Homeowner's exemption | $595,418 Land $178,625 Building $416,793 |
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 · 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 | 1 in force |
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 66% of the US · lower than 80% 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 791 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, T-Mobile, Unwired.
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