Alameda County property record for 4041 Mabel Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 1,569 sqft · built 1979 |
| Lot Size | 0.158 acres (6,891 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $4,080 (2025) |
| Deeds & Mortgages | Sep 2019 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-756-38 |
| Primary APN | 84C-756-38 |
|---|---|
| Alternative APN |
|
| Building Area | 1,569 sqft Living Area |
|---|
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,891 sqft (0.158 acres) |
| Street Address | 4041 MABEL AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3542 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00007 BLK: TR: 3887 |
| Legal Subdivision | TRACT 3887 |
| Legal Tract | 3887 |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 430800 |
4041 Mabel Ave is held in a trust since September 2019.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4041 MABEL AVE, CASTRO VALLEY, CA 94546-3542 |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Last Transfer Date | Sep 21, 2019 |
| Transfer Doc | 0000191247 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 24, 2019 |
| Property Address | 4041 MABEL AVE, CASTRO VALLEY, CA 94546-3542 |
| Document Number | 0000191247 |
| Instrument Date | Sep 21, 2019 |
| Instrument | 191247 |
| Transaction Type | Transfer |
| Record Updated | Oct 21, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4041 MABEL AVE CASTRO VALLEY CA 945463542, CASTRO VALLEY, CA 94546-3542 |
The 2025 property tax bill for 4041 Mabel Ave was $4,080.
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 | $277,579 (+2%) Land $135,681 Building $141,898 | ||
| 2025 | $4,080.00 | $272,136 Land $133,020 Building $139,116 | |
| 2023 | $3,817.00 Homeowner's exemption | $261,571 Land $127,856 Building $133,715 | $1,069,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4041 Mabel Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 4041 Mabel 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 704 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 |
| Starlink Satellite | 280 / 30 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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