Alameda County property record for 4891 James Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,602 sqft · built 1955 |
| Lot Size | 0.135 acres (5,900 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,923 (2025) |
| Deeds & Mortgages | May 2026 Reverse Mortgage May 2026 Reverse Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-777-21 |
| Primary APN | 84C-777-21 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,602 sqft Living Area |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1956 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,900 sqft (0.135 acres) |
| Street Address | 4891 JAMES AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3639 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00007 BLK: 0001 TR: 1256 |
| Legal Subdivision | TR 1256 |
| Legal Tract | 1256 |
| Legal Block | 1 |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 430200 |
4891 James Ave is owned and occupied by an individual who acquired it in January 2003.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4891 JAMES AVE, CASTRO VALLEY, CA 94546-3639 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| May 6, 2026 | Deed of Trust, Mortgage · Reverse Mortgage FEDERAL HOUSING COMMISSIONER |
| May 6, 2026 | Deed of Trust, Mortgage · Reverse Mortgage MUTUAL/OMAHA MORTGAGE LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jan 31, 2003 |
| Transfer Doc | 0000225072 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 6, 2026 |
| Property Address | 4891 JAMES AVE, CASTRO VALLEY, CA 94546-3639 |
| Document Number | 0000059424 |
| Instrument Date | Apr 9, 2026 |
| Instrument | 202659424 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Relationship | Surviving Joint Tenant, 290 |
| Address | 4891 JAMES AVE, CASTRO VALLEY, CA 94546-3639 |
| Document Number | 0000059424, |
|---|---|
| Date | May 6, 2026 |
| Instrument | 202659424 |
| Name | FEDERAL HOUSING COMMISSIONER |
|---|
| Type | Reverse Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 999 Months |
| Rate | 6.11% |
|---|---|
| Max Rate | -1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 6, 2026 |
| Property Address | 4891 JAMES AVE, CASTRO VALLEY, CA 94546-3639 |
| Document Number | 0000059423 |
| Instrument Date | Apr 9, 2026 |
| Instrument | 202659423 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Relationship | Surviving Joint Tenant, 290 |
| Address | 4891 JAMES AVE, CASTRO VALLEY, CA 94546-3639 |
| Document Number | 0000059423, |
|---|---|
| Date | May 6, 2026 |
| Instrument | 202659423 |
| Name | MUTUAL/OMAHA MORTGAGE LLC |
|---|
| Type | Reverse Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 999 Months |
| Rate | 6.11% |
|---|---|
| Max Rate | -1% |
The 2025 property tax bill for 4891 James Ave was $1,923 with a homeowner's exemption.
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 | $91,282 (-5.26%) Land $42,764 Building $55,518 | ||
| 2025 | $1,923.00 Homeowner's exemption | $96,354 Land $41,925 Building $54,429 | |
| 2023 | $1,811.00 Homeowner's exemption | $92,613 Land $40,297 Building $52,316 | $1,014,930 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4891 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 4891 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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