Alameda County property record for 20590 John Dr, Castro Valley, CA 94546
| Property Type | Parking Lot |
|---|---|
| Details | 11.5 ba · 108,980 sqft · built 1970 |
| Lot Size | 2.87 acres (125,339 sqft) |
| Owner | Company Name on File |
| Tax Bill | $1,556 (2025) |
| Deeds & Mortgages | Nov 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 84A-228-1-3 |
| Primary APN | 84A-228-1-3 |
|---|---|
| Alternative APN |
|
| Full Baths | 11.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Units | 4 Units |
| Stories | 1 Story |
| Building Area | 108,980 sqft Total Area |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Custom Design |
| Construction Type | Concrete |
| Lot Area | 125,339 sqft |
| Street Address | 20590 JOHN DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Parking Lot |
| 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 |
| Legal Subdivision | STANTON 01 |
| Legal Lot Number | 5 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 430600 |
20590 John Dr, a commercial property, is owned by a company that acquired it in November 2018.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 20600 JOHN DR, CASTRO VALLEY, CA 94546-5123 |
| 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 |
|---|---|
| Last Transfer Date | Nov 14, 2018 |
| Transfer Doc | 0000227811 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Nov 30, 2018 |
| Property Address | 20590 JOHN DR, CASTRO VALLEY, CA 94546 |
| Document Number | 0000227811 |
| Instrument Date | Nov 14, 2018 |
| Instrument | 227811 |
| Transaction Type | Transfer |
| Record Updated | Dec 18, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 20600 JOHN DR CASTRO VALLEY CA 945465123, CASTRO VALLEY, CA 94546-5123 |
The 2025 property tax bill for 20590 John Dr was $1,556.
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 | $1,007,246 (+2%) Land $886,548 Building $120,698 | |
| 2025 | $1,556.00 | $987,498 Land $869,166 Building $118,332 |
| 2023 | $1,687.00 | $949,155 Land $835,418 Building $113,737 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 20590 John Dr 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.
The area around 20590 John Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 459 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 · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Verizon.
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