Alameda County property record for 20120 Edwin Markham Dr, Castro Valley, CA 94552 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,329 sqft · built 1992 |
| Lot Size | 0.141 acres (6,118 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $8,144 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6411-31 |
| Primary APN | 85A-6411-31 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,329 sqft Living Area |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,118 sqft (0.141 acres) |
| Terrain | Gentle Slope |
| Street Address | 20120 EDWIN MARKHAM DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5093 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00005 BLK: TR: 5738 |
| Legal Tract | 5738 |
| Legal Lot Number | 5 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 430101 |
Source: Alameda County records · APN 85A-6411-31
Assessment roll updated August 5, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 20120 EDWIN MARKHAM DR, CASTRO VALLEY, CA 94552-5093 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20120 EDWIN MARKHAM DR, CASTRO VALLEY, CA 94552-5093 |
| Transaction Type | Mortgage |
| Record Updated | Sep 28, 2023 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 20120 EDWIN MARKHAM DR, CASTRO VALLEY, CA 94552-5093 |
| Document Number | 0000000813 |
|---|---|
| Date | Jan 03, 2022 |
| Instrument | 2022000813 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 01, 2052 |
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $628,987 (+0.88%) Land $335,195 Building $300,792 | ||
| 2025 | $8,144.00 (+4.06%) Homeowner's exemption | $623,518 (+4.04%) Land $328,623 Building $294,895 | |
| 2023 | $7,826.00 Homeowner's exemption | $599,308 Land $315,863 Building $283,445 | $1,460,790 |
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 |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Moderate above 68% of the US · above 42% of California |
|---|---|
| Wildfire Likelihood | About 1 in 386 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 495 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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