Alameda County property record for 4841 Kathleen Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,391 sqft · built 1948 |
| Lot Size | 0.135 acres (5,880 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $427,000 (Jul 2003) |
| Tax Bill | $8,027 (2025) |
| Deeds & Mortgages | Jul 2022 Line of Credit Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-793-10 |
| Primary APN | 84C-793-10 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,391 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | L-Shape |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,880 sqft (0.135 acres) |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4841 KATHLEEN AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2505 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00015 BLK: 0004 TR: 0785 |
| Legal Subdivision | TRACT 785 |
| Legal Tract | 0785 |
| Legal Block | 4 |
| Legal Lot Number | 15 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 430200 |
4841 Kathleen Ave is owned and occupied by two individuals who acquired it in July 2008.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4841 KATHLEEN AVE, CASTRO VALLEY, CA 94546-2505 |
| 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.
| Date | Document |
|---|---|
| Jul 26, 2022 | Deed of Trust, Mortgage · Line of Credit PATELCO CU |
| Oct 21, 2020 | Deed of Trust, Mortgage · Conventional Mortgage PACIFIC BAY LENDING GROUP |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 24, 2003 · Amount on File |
| Deed Sale | Jul 24, 2003 · Amount on File |
| Deed Document Number | 2003429545 |
| Last Transfer Date | Jul 11, 2008 |
| Transfer Doc | 0000222398 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4841 KATHLEEN AVE, CASTRO VALLEY, CA 94546-2505 |
| Transaction Type | Mortgage |
| Record Updated | Aug 22, 2022 |
| Title Company | PLACER TITLE |
| Name | Verified Name |
|---|---|
| Address | 4841 KATHLEEN AVE, CASTRO VALLEY, CA 94546-2505 |
| Document Number | 0000132664 |
|---|---|
| Date | Jul 26, 2022 |
| Instrument | 2022132664 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 302 Months |
| Due | Aug 31, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.5% |
| Change Frequency | Monthly |
| Index | Prime Rate |
| Max Rate | 17% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4841 KATHLEEN AVE, CASTRO VALLEY, CA 94546-2505 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TTL CO CASTRO V |
| Name | Verified Name |
|---|---|
| Address | 4841 KATHLEEN AVE, CASTRO VALLEY, CA 94546-2505 |
| Document Number | 0000280852 |
|---|---|
| Date | Oct 21, 2020 |
| Instrument | 2020280852 |
| Name | PACIFIC BAY LENDING GROUP |
|---|---|
| Type | Lending Institution |
| Address | GARDEN GROVE, CA 92841 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2050 |
The 2025 property tax bill for 4841 Kathleen Ave was $8,027.
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 | $618,773 (+2%) Land $185,762 Building $433,011 | ||
| 2025 | $8,027.00 | $606,643 Land $182,121 Building $424,522 | |
| 2023 | $7,717.00 | $583,088 Land $175,049 Building $408,039 | $834,480 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4841 Kathleen 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 4841 Kathleen 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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