Alameda County property record for 4248 Mabel Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,010 sqft · built 1950 |
| Lot Size | 0.116 acres (5,035 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $800,000 (Sep 2025) |
| Tax Bill | $1,556 (2025) |
| Deeds & Mortgages | Sep 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-755-19 |
| Primary APN | 84C-755-19 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,010 sqft Living Area |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,035 sqft (0.116 acres) |
| Street Address | 4248 MABEL AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3547 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00019 BLK: 0001 TR: 1012 |
| Legal Subdivision | TR 1012 |
| Legal Tract | 1012 |
| Legal Block | 1 |
| Legal Lot Number | 19 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 430800 |
Source: Alameda County records, as of August 26, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 2130 LAKEVIEW DR, SAN LEANDRO, CA 94577-6309 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 22, 2025 · Amount on Record |
| Deed Sale | Sep 22, 2025 · Amount on Record |
| Deed Document Number | 2025118102 |
| Prior Transfer Date | Nov 20, 2013 |
| Prior Transfer Doc | 0000370616 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 22, 2025 |
| Property Address | 4248 MABEL AVE, CASTRO VALLEY, CA 94546-3547 |
| Document Number | 0000118102 |
| Map Reference | MB 30 PG 69 |
| Instrument Date | Sep 18, 2025 |
| Instrument | 2025118102 |
| Transaction Type | Transfer |
| Record Updated | Oct 20, 2025 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $880.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 2130 LAKEVIEW DR, SAN LEANDRO, CA 94577-6309 |
| Document Number | 0000118103 |
|---|---|
| Date | Sep 22, 2025 |
| Instrument | 2025118103 |
| Name | AMERIS BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Oct 1, 2040 |
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 | $800,000 (+1,126.67%) Land $240,000 Building $560,000 | ||
| 2025 | $1,556.00 (+6.87%) Homeowner's exemption | $65,217 (+4.04%) Land $35,060 Building $30,157 | |
| 2023 | $1,456.00 Homeowner's exemption | $62,685 Land $33,699 Building $28,986 | $885,510 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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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