Alameda County property record for 20439 John Dr, Castro Valley, CA 94546 · Last verified October 2025
| Property Type | Residential > Multi-Unit > Quadplex |
|---|---|
| Bedrooms | 8 Beds |
| Bathrooms | 4 Baths |
| Architecture Style | Other |
| Year Built | Built 1963 |
| Square Footage | 3,520 sqft Total Area |
| Lot Size | 5,605 sqft (0.128 acres) |
| Last Sale | $465,000 (2000) |
| Tax Bill | $10,863.00 (2025) |
| Primary APN | 84A-265-1-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 8 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 16 Rooms |
| Units | 4 Units |
| Building Area | 3,520 sqft Total Area |
| Stories | 2 Stories |
| Year Built | Built 1963 |
|---|---|
| Architectural Style | Other Style |
| Construction Type | Wood Construction |
| Lot Area | 5,605 sqft (0.128 acres) |
| Street Address | 20439 JOHN DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3949 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Quadplex |
| Legal Description | SUBD:MAP OF STANTON TRACT #1 |
| Legal Subdivision | MAP OF STANTON TRACT #1 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3013 |
| Census Tract | 430500 |
Source: Alameda County records · APN 84A-265-1-20
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Owner Names on File |
|---|---|
| Mailing Address | PO BOX 1111, MILLBRAE, CA 94030-5111 |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 11, 2000 · Amount on Record |
| Deed Sale | Aug 11, 2000 · Amount on Record |
| Prior Sale | Jun 14, 1999 |
| Deed Doc Number | 2000240784 |
| Deed Book / Page | 084A |
| Record Refreshed | Jun 08, 2026 |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $10,863.00 (+4.31%) | $700,628 (+4.04%) Land $210,188 Building $490,440 |
| 2023 | $10,414.00 | $673,426 Land $202,028 Building $471,398 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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