Alameda County property record for 3979 Alexia Pl, Castro Valley, CA 94546 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,071 sqft · built 2004 |
| Lot Size | 0.161 acres (7,019 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $12,177 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1325-17 |
| Primary APN | 84D-1325-17 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 3,071 sqft Living Area |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,019 sqft (0.161 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3979 ALEXIA PL |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3035 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00004 BLK: TR: 7365 |
| Legal Tract | 7365 |
| Legal Lot Number | 4 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 430700 |
Source: Alameda County records · APN 84D-1325-17
Assessment roll updated August 5, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3979 ALEXIA PL, CASTRO VALLEY, CA 94546-3035 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jul 01, 2008 |
| Transfer Doc | 0000206244 |
| Record Updated | Sep 20, 2026 |
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $977,633 (+1.27%) Land $260,078 Building $724,555 | ||
| 2025 | $12,177.00 (+3.85%) Homeowner's exemption | $965,329 (+4.04%) Land $254,979 Building $710,350 | |
| 2023 | $11,726.00 Homeowner's exemption | $927,853 Land $245,080 Building $682,773 | $1,754,010 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014307001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 938 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Sonic Telecom | Fiber | 10,000 / 10,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
May also be available at this address: Verizon, T-Mobile USA, AT&T, California Internet, Unwired. Availability varies by address; speeds are provider-advertised maximums, not measured.
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