Alameda County property record for 4387 Gem Ave, Castro Valley, CA 94546 · Last verified October 2025
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1949 |
| Square Footage | 1,269 sqft Living Area |
| Lot Size | 5,014 sqft (0.115 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,150,000 (2025) |
| Tax Bill | $10,786.00 (2025) |
| Primary APN | 84C-1064-77 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,269 sqft Living Area |
| Stories | 1 Stories |
| Year Built | Built 1949 |
|---|---|
| Architectural Style | Other Style |
| Construction Type | Wood Construction |
| Lot Area | 5,014 sqft (0.115 acres) |
| Parking Spaces | 1 Parking Spaces |
| Street Address | 4387 GEM AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4749 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 799 BLK 3 LOT 5 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3003 |
| Census Tract | 430800 |
Source: Alameda County records · APN 84C-1064-77
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 | Individual Name on File |
|---|---|
| Co-owner | Verified Secondary Owner |
| Mailing Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Jan 28, 2026 | Deed of Trust, Mortgage · Conventional Mortgage VELLUM MORTGAGE LLC |
| Mar 25, 2021 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC |
| Jul 23, 2020 | Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 07, 2025 · Amount on Record |
| Deed Sale | Mar 07, 2025 · Amount on Record |
| Prior Sale | Jul 23, 2020 · Amount on Record |
| Deed Doc Number | 2025033599 |
| Record Refreshed | Jun 07, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Transaction Type | Mortgage |
| Record Updated | Mar 04, 2026 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Document Number | 0000010409 |
|---|---|
| Date | Jan 28, 2026 |
| Instrument | 2026010409 |
| Name | VELLUM MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | 12700 FAIR LAKES CIR STE 400, FAIRFAX, VA 22033 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Feb 01, 2041 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Transaction Type | Mortgage |
| Record Updated | Apr 16, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Document Number | 0000121842 |
|---|---|
| Date | Mar 25, 2021 |
| Instrument | 2021121842 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 23, 2020 |
| Property Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Document Number | 0000175527 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Jul 21, 2020 |
| Instrument | 2020175527 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | NORTH AMERICAN TITLE CO INC |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Partially Calculated from Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4387 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Document Number | 0000175528 |
|---|---|
| Date | Jul 23, 2020 |
| Instrument | 2020175528 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Non-Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2050 |
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 | $10,786.00 (+3.9%) Homeowner's exemption | $847,425 (+4.04%) Land $253,253 Building $594,172 |
| 2023 | $10,381.00 Homeowner's exemption | $814,528 Land $243,422 Building $571,106 |
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