Alameda County property record for 4388 Gem Ave, Castro Valley, CA 94546 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1981 |
| Square Footage | 1,802 sqft Living Area |
| Lot Size | 5,200 sqft (0.119 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,100,000 (2021) |
| Tax Bill | $13,146.00 (2025) |
| Primary APN | 84C-1063-18 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,802 sqft Living Area |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1981 |
| Exterior Material | Stucco Exterior |
| Construction Type | Wood Construction |
| Roof Material | Roll Tar & Gravel Roof |
| 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 | 4388 GEM AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4750 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT: 00003 BLK: 0004 TR: 0799 |
| Legal Subdivision | 799 EDEN TOWNSHIP |
| Legal Tract | 0799 |
| Legal Block | 4 |
| Legal Lot Number | 3 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3003 |
| Census Tract | 430800 |
Source: Alameda County records · APN 84C-1063-18
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 | 4388 GEM AVE, CASTRO VALLEY, CA 94546-4750 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Mar 09, 2023 | Intrafamily Transfer, Transfer ACCOMODATION, ACCOMMODATION |
| Nov 10, 2021 | Grant Deed, Transfer OLD REPUBLIC TITLE COMPANY |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 10, 2021 · Amount on Record |
| Deed Sale | Nov 10, 2021 · Amount on Record |
| Prior Sale | Aug 30, 2000 · Amount on Record |
| Deed Doc Number | 2021368006 |
| Last Transfer Date | Feb 27, 2023 |
| Transfer Doc | 0000028563 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 09, 2023 |
| Property Address | 4388 GEM AVE, CASTRO VALLEY, CA 94546-4750 |
| Document Number | 0000028563 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Feb 27, 2023 |
| Instrument | 2023028563 |
| Transaction Type | Transfer |
| Record Updated | Apr 05, 2023 |
| Title Company | ACCOMODATION, ACCOMMODATION |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property (Marital Community) with Rights of Survivorship |
| Address | 4388 GLEN AVENUE, CASTRO VALLEY, CA 94546 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Nov 10, 2021 |
| Property Address | 4388 GEM AVE, CASTRO VALLEY, CA 94546-4750 |
| Document Number | 0000368006 |
| Map Reference | MB 27 PG 88 |
| Instrument Date | Nov 05, 2021 |
| Instrument | 2021368006 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,210.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 5128 JENSEN RD, CASTRO VALLEY, CA 94552-5006 |
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 | $1,061,200 (+2%) Land $318,360 Building $742,840 | ||
| 2025 | $13,146.00 (-6.86%) | $1,040,400 (-7.27%) Land $312,120 Building $728,280 | |
| 2023 | $14,114.00 | $1,122,000 Land $336,600 Building $785,400 | $1,112,130 |
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