Alameda County property record for 4730 James Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 931 sqft · built 1948 |
| Lot Size | 0.127 acres (5,550 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $407,000 (Apr 2013) |
| Tax Bill | $6,783 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-793-16 |
| Primary APN | 84C-793-16 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 931 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,550 sqft (0.127 acres) |
| Street Address | 4730 JAMES AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3638 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00009 BLK: 0004 TR: 0785 |
| Legal Tract | 0785 |
| Legal Block | 4 |
| Legal Lot Number | 9 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 430200 |
4730 James Ave is owned and occupied by two individuals who bought it in April 2013.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4730 JAMES AVE, CASTRO VALLEY, CA 94546-3638 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 3, 2013 · Amount on File |
| Deed Sale | Apr 3, 2013 · Amount on File |
| Deed Document Number | 2013119592 |
| Prior Transfer Date | Mar 4, 2013 |
| Prior Transfer Doc | 0000119592 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4730 JAMES AVE, CASTRO VALLEY, CA 94546-3638 |
| Transaction Type | Mortgage |
| Record Updated | May 19, 2021 |
| Title Company | ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4730 JAMES AVE, CASTRO VALLEY, CA 94546-3638 |
| Document Number | 0000166632 |
|---|---|
| Date | Apr 29, 2021 |
| Instrument | 2021166632 |
| Name | FISHER FINANCIAL GROUP INC |
|---|---|
| Type | Funding / Finance Company |
| Address | GILBERT, AZ 85234 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | May 1, 2041 |
The 2025 property tax bill for 4730 James Ave was $6,783.
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 | $511,191 (+2%) Land $153,357 Building $357,834 | ||
| 2025 | $6,783.00 | $501,171 Land $150,351 Building $350,820 | |
| 2023 | $6,513.00 | $481,712 Land $144,513 Building $337,199 | $788,490 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4730 James Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1998 · rainfall accumulation |
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.
Wildfire risk around 4730 James Ave is low, with a 0.01% annual chance of wildfire.
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 804 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 · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Etheric Networks, GeoLinks.
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