Alameda County property record for 4000 E Castro Valley Blvd, Castro Valley, CA 94552
| Property Type | Religious, Church, Worship (Synagogue, Temple, Parsonage) |
|---|---|
| Details | 26,020 sqft · built 1970 |
| Lot Size | 5.26 acres (229,501 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,102 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-5450-11 |
| Primary APN | 85-5450-11 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 26,020 sqft Total Area |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 229,501 sqft |
| Parking Spaces | 138 Parking Spaces |
| Street Address | 4000 E CASTRO VALLEY BLVD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-4908 |
| Property Category | Other |
| Property Type | Other > Religious, Church, Worship (Synagogue, Temple, Parsonage) |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 430101 |
4000 E Castro Valley Blvd is owned by a company.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 2121 HARRISON ST, 100, OAKLAND, CA 94612-3788 |
| Owner Type | Company |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4000 E Castro Valley Blvd was $5,102.
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 |
|---|---|---|
| 2026 | $134,644 (-93.77%) Land $289,349 Building $1,778,083 | |
| 2025 | $5,102.00 | $2,161,953 Land $283,677 Building $1,878,276 |
| 2023 | $3,281.00 | $2,090,255 Land $272,662 Building $1,817,593 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4000 E Castro Valley Blvd 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 · 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 4000 E Castro Valley Blvd is low, with a 0.02% 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 | 0.02% annual chance |
| Exposure | Indirect within 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 442 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, T-Mobile, Unwired.
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