Alameda County property record for 4029 Mabel Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 1,570 sqft · built 1980 |
| Lot Size | 0.157 acres (6,835 sqft) |
| Owner | Individual Name on File |
| Last Sale | $235,000 (Apr 1999) |
| Tax Bill | $5,133 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-756-39 |
| Primary APN | 84C-756-39 |
|---|---|
| Alternative APN |
|
| Building Area | 1,570 sqft Living Area |
|---|
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,835 sqft (0.157 acres) |
| Street Address | 4029 MABEL AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3542 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00006 BLK: TR: 3887 |
| Legal Tract | 3887 |
| Legal Lot Number | 6 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 430800 |
4029 Mabel Ave is owned and occupied by an individual who bought it in April 1999.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4029 MABEL AVE, CASTRO VALLEY, CA 94546-3542 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 27, 1999 · Amount on File |
| Deed Sale | Apr 27, 1999 · Amount on File |
| Deed Document Number | 1999166793 |
| Prior Transfer Date | Aug 26, 1996 |
| Prior Transfer Doc | 0000244747 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4029 Mabel Ave was $5,133 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 | $368,757 (+0.1%) Land $112,727 Building $263,030 | ||
| 2025 | $5,133.00 Homeowner's exemption | $368,390 Land $110,517 Building $257,873 | |
| 2023 | $4,915.00 Homeowner's exemption | $354,088 Land $106,226 Building $247,862 | $915,390 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4029 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 4029 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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