Alameda County property record for 4381 Gem Ave, Castro Valley, CA 94546 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1949 |
| Square Footage | 827 sqft Living Area |
| Lot Size | 5,014 sqft (0.115 acres) |
| Tax Bill | $4,185.00 (2025) |
| Primary APN | 84C-1064-78 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 5 Rooms |
| Building Area | 827 sqft Living Area |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Exterior Material | Stucco Exterior |
| Construction Type | Wood Construction |
| Roof Material | Roll Tar & Gravel Roof |
| Lot Area | 5,014 sqft (0.115 acres) |
| Depth X Width | 92 ft x 54 ft Depth x Width |
| Heating System | Floor/Wall Furnace Heating |
|---|---|
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 4381 GEM AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4749 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT: 00004 BLK: 0003 TR: 0799 |
| Legal Subdivision | TR 799 |
| Legal Tract | 0799 |
| Legal Block | 3 |
| Legal Lot Number | 4 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3003 |
| Census Tract | 430800 |
Source: Alameda County records · APN 84C-1064-78
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 | Company Name on File |
|---|---|
| Mailing Address | 4381 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jul 19, 2023 |
| Transfer Doc | 0000083530 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 21, 2023 |
| Property Address | 4381 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
| Document Number | 0000083530 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Jul 19, 2023 |
| Instrument | 2023083530 |
| Transaction Type | Transfer |
| Record Updated | Aug 18, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 4381 GEM AVE, CASTRO VALLEY, CA 94546-4749 |
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 | $286,597 (+2%) Land $86,033 Building $200,564 | ||
| 2025 | $4,185.00 (+2.52%) | $280,978 (+4.04%) Land $84,346 Building $196,632 | |
| 2024 | $4,082.00 (+2.02%) | ||
| 2023 | $4,001.00 (+2.3%) | $270,068 (+2%) Land $81,071 Building $188,997 | $682,200 |
| 2022 | $3,911.00 | $264,774 Land $79,482 Building $185,292 |
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