Alameda County property record for 4584 James Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,391 sqft · built 1947 |
| Lot Size | 0.225 acres (9,792 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $552,000 (Jan 2013) |
| Tax Bill | $11,286 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-816-19 |
| Primary APN | 84C-816-19 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,391 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 9,792 sqft (0.225 acres) |
| Street Address | 4584 JAMES AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2444 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00011 BLK: 000B TR: 0733 ;LOT: 00012 BLK: 000B TR: 0733 |
| Legal Tract | 0733 |
| Legal Block | B |
| Legal Lot Number | 11,12 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 430200 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 4584 JAMES AVE, CASTRO VALLEY, CA 94546-2444 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 4, 2013 · Amount on Record |
| Deed Sale | Jan 4, 2013 · Amount on Record |
| Prior Sale | Dec 18, 2002 · Amount on Record |
| Deed Document Number | 20134490 |
| Prior Transfer Date | Aug 5, 1994 |
| Prior Transfer Doc | 0000009161 |
| Record Updated | Oct 29, 2026 |
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 | $887,196 (+1.2%) Land $207,993 Building $686,203 | ||
| 2025 | $11,286.00 (+20.76%) Homeowner's exemption | $876,668 (+20.53%) Land $203,916 Building $672,752 | |
| 2023 | $9,346.00 Homeowner's exemption | $727,330 Land $195,999 Building $531,331 | $1,089,540 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 3 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 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 724 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, 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, T-Mobile.
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