Alameda County property record for 4436 Gem Ave, Castro Valley, CA 94546 · Last verified October 2025
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1950 |
| Square Footage | 1,071 sqft Living Area |
| Lot Size | 6,082 sqft (0.139 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $584,500 (2006) |
| Tax Bill | $10,294.00 (2025) |
| Primary APN | 84C-1063-26 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,071 sqft Living Area |
| Stories | 1 Stories |
| Year Built | Built 1950 |
|---|---|
| Architectural Style | Other Style |
| Construction Type | Wood Construction |
| Lot Area | 6,082 sqft (0.139 acres) |
| Garage Type | Mixed Garage |
| Street Address | 4436 GEM AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4741 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 979 BLK 2 LOT 4 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | HAYWARD |
| Census Blockgroup | 3 |
| Census Block | 3003 |
| Census Tract | 430800 |
Source: Alameda County records · APN 84C-1063-26
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 | 4436 GEM AVE, CASTRO VALLEY, CA 94546-4741 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 01, 2006 · Amount on Record |
| Deed Sale | Jun 01, 2006 · Amount on Record |
| Prior Sale | Jun 01, 2006 · Amount on Record |
| Deed Doc Number | 0000214601 |
| Last Transfer Date | May 20, 2021 |
| Transfer Doc | 0000191038 |
| Record Refreshed | Jun 07, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 20, 2021 |
| Property Address | 4436 GEM AVE, CASTRO VALLEY, CA 94546-4741 |
| Document Number | 0000191038 |
| Map Reference | MB 30 PG 50 |
| Instrument Date | May 12, 2021 |
| Instrument | 2021191038 |
| Transaction Type | Transfer |
| Record Updated | Jun 10, 2021 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| 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 | 4436 GEM AVE, CASTRO VALLEY, CA 94546-4741 |
| Document Number | 0000191039 |
|---|---|
| Date | May 20, 2021 |
| Instrument | 2021191039 |
| Name | NOVA FINANCIAL & INVESTMENT CORP |
|---|---|
| Type | Funding / Finance Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Jun 01, 2036 |
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 | $10,294.00 (+3.9%) | $798,695 (+4.04%) Land $239,608 Building $559,087 |
| 2023 | $9,908.00 | $767,687 Land $230,306 Building $537,381 |
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