Alameda County property record for 20600 John Dr, Castro Valley, CA 94546
| Property Type | Religious, Church, Worship (Synagogue, Temple, Parsonage) |
|---|---|
| Details | 11.5 ba · 108,980 sqft · built 1970 |
| Lot Size | 13.7 acres (600,621 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $14,338 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84A-235-1-8 |
| Primary APN | 84A-235-1-8 |
|---|---|
| Alternative APN |
|
| Full Baths | 11.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Units | 3 Units |
| Stories | 1 Story |
| Building Area | 108,980 sqft |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Custom Design |
| Construction Type | Concrete |
| Lot Area | 600,621 sqft |
| Street Address | 20600 JOHN DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-5123 |
| Property Category | Other |
| Property Type | Other > Religious, Church, Worship (Synagogue, Temple, Parsonage) |
| Legal Description | LOT: 00002 BLK: 0001 AR: 084A PAGE: 0230 ;LOT: 00002 BLK: 0001 AR: 084A PAGE: 0240 ;LOT: 00003 BLK: 0001 AR: 084A PAGE: 0228 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 430600 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 20600 JOHN DR, CASTRO VALLEY, CA 94546-5123 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
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 | $938,299 (-94.7%) Land $506,150 Building $16,092,884 | |
| 2025 | $14,338.00 (+11.51%) | $17,694,605 (+2.61%) Land $496,228 Building $17,198,377 |
| 2023 | $12,858.00 | $17,244,942 Land $476,960 Building $16,767,982 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 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 709 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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