Alameda County property record for 20051 Diamond Ct, Castro Valley, CA 94546 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1948 |
| Square Footage | 827 sqft Living Area |
| Lot Size | 6,676 sqft (0.153 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $400,000 (2021) |
| Tax Bill | $10,157.00 (2024) |
Source: Alameda County records · APN 84C-1064-4
Assessment roll updated June 20, 2025 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Sep 07, 2021 | Grant Deed, Transfer · Conventional Mortgage GUILD MORTGAGE CO |
| Feb 22, 2021 | Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA NA |
| Dec 06, 2019 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA |
| Feb 14, 2019 | Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 07, 2021 · Amount on Record |
| Deed Sale | Sep 07, 2021 · Amount on Record |
| Prior Sale | Feb 22, 2021 · Amount on Record |
| Deed Doc Number | 2021302224 |
| Prior Transfer Date | Jun 10, 2002 |
| Prior Transfer Doc | 0000317760 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 07, 2021 |
| Property Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000302224 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Aug 30, 2021 |
| Instrument | 2021302224 |
| Transaction Type | Transfer |
| Record Updated | Jul 19, 2022 |
| Title Company | PLACER TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $440.00 |
| Amount Accuracy | Calculated from Tax (Full/Partial Unknown) |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000302225 |
|---|---|
| Date | Sep 07, 2021 |
| Instrument | 2021302225 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 01, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Feb 22, 2021 |
| Property Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000073866 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Nov 06, 2020 |
| Instrument | 2021073866 |
| Transaction Type | Transfer |
| Record Updated | Jul 19, 2022 |
| Title Company | WFG LENDER SERVICES |
| Amount | Amount Recorded |
|---|---|
| Tax | $176.00 |
| Amount Accuracy | Rounded Values by County |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000073867 |
|---|---|
| Date | Feb 22, 2021 |
| Instrument | 2021073867 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 358 Months |
| Due | Dec 01, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000052172 |
| Instrument Date | Dec 06, 2019 |
| Transaction Type | Mortgage |
| Record Updated | May 05, 2020 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INSURANCE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 20051 DIAMOND CT CASTRO VALLEY CA 945464733, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000052172 |
|---|---|
| Date | Mar 04, 2020 |
| Instrument | 52172 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 03, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20051 DIAMOND CT, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000045684 |
| Instrument Date | Feb 14, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Mar 27, 2019 |
| Title Company | AMERICAN TITLE COMPANY, AMERICAN TITLE INC-OMAHA |
| Name | Verified Name |
|---|---|
| Address | 20051 DIAMOND CT CASTRO VALLEY CA 945464733, CASTRO VALLEY, CA 94546-4733 |
| Document Number | 0000045684 |
|---|---|
| Date | Mar 13, 2019 |
| Instrument | 45684 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | TAMPA, FL 33634 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: Alameda County records · Assessment roll updated June 20, 2025 · Last verified July 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 |
|---|---|---|---|
| 2025 | $10,386.00 (+2.25%) | $806,512 (+4.04%) Land $265,300 Building $541,212 | |
| 2024 | $10,157.00 (+1.6%) | ||
| 2023 | $9,997.00 | $775,200 Land $255,000 Building $520,200 | $693,810 |
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.
| Primary APN | 84C-1064-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 4 Rooms |
| Building Area | 827 sqft Living Area |
| Stories | 1 Stories |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Construction Type | Wood Construction |
| Lot Area | 6,676 sqft (0.153 acres) |
| Street Address | 20051 DIAMOND CT |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4733 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT: 00007 BLK: 0002 TR: 0799 |
| Legal Subdivision | 799 EDEN TOWNSHIP |
| Legal Tract | 0799 |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3005 |
| Census Tract | 430800 |
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