Alameda County property record for 4394 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 | 1,276 sqft Living Area |
| Lot Size | 5,200 sqft (0.119 acres) |
| Tax Bill | $2,947.00 (2025) |
| Primary APN | 84C-1063-19 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,276 sqft Living Area |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Exterior Material | Block Exterior |
| Construction Type | Wood Construction |
| Lot Area | 5,200 sqft (0.119 acres) |
| Depth X Width | 100 ft x 52 ft Depth x Width |
| Heating System | Floor/Wall Furnace Heating |
|---|---|
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 4394 GEM AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4750 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT: 00004 BLK: 0004 TR: 0799 |
| Legal Tract | 0799 |
| Legal Block | 4 |
| 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-1063-19
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 | 3520 BRODERICK ST, SAN FRANCISCO, CA 94123-1409 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
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 | $179,623 (+2%) Land $109,676 Building $69,947 | ||
| 2025 | $2,947.00 (+5.1%) | $176,102 (+4.04%) Land $107,526 Building $68,576 | |
| 2023 | $2,804.00 | $169,265 Land $103,351 Building $65,914 | $1,111,500 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures