Alameda County property record for 4327 Old Dublin Rd, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,884 sqft · built 1940 |
| Lot Size | 2.89 acres (126,318 sqft) |
| Owner | Trust Name on File |
| Last Sale | $377,500 (May 1997) |
| Tax Bill | $8,016 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-6302-11-5 |
| Primary APN | 85-6302-11-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,884 sqft Living Area |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 126,318 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4327 OLD DUBLIN RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-4930 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00004 BLK: 0001 AR: 0085 PAGE: 6303 ;LOT: 0000A BLK: PM: 0119 PAGE: 0033 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 430101 |
4327 Old Dublin Rd is owner-occupied and held in a trust since May 1997.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4327 OLD DUBLIN RD, CASTRO VALLEY, CA 94552-4930 |
| Occupancy | Owner Occupied |
| 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 Sale | May 28, 1997 · Amount on File |
| Deed Sale | May 28, 1997 · Amount on File |
| Deed Document Number | 1997131053 |
| Prior Transfer Date | Jun 17, 1994 |
| Prior Transfer Doc | 0000257290 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4327 Old Dublin Rd was $8,016 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 | $617,596 (+0.86%) Land $187,711 Building $436,885 | ||
| 2025 | $8,016.00 Homeowner's exemption | $612,349 Land $184,030 Building $428,319 | |
| 2023 | $7,702.00 Homeowner's exemption | $588,574 Land $176,885 Building $411,689 | $1,378,080 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4327 Old Dublin Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 · Severe Winter Storms And Flooding |
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 4327 Old Dublin Rd is moderate, ranking above 44% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 44% of the US · lower than 74% of California |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 211 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, T-Mobile.
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