Alameda County property record for 6669 Giannini Ct, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,956 sqft · built 1985 |
| Lot Size | 0.163 acres (7,100 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $350,000 (Dec 1997) |
| Tax Bill | $7,381 (2025) |
| Deeds & Mortgages | Apr 2023 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6404-46 |
| Primary APN | 85A-6404-46 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,956 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 7,100 sqft (0.163 acres) |
| View / Lot | Bay |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 6669 GIANNINI CT |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5079 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | LOT: 00188 BLK: TR: 4468 |
| Legal Subdivision | TR 4468 |
| Legal Tract | 4468 |
| Legal Lot Number | 138 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 430101 |
Source: Alameda County records, as of August 5, 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 Record |
|---|---|
| Mailing Address | 6669 GIANNINI CT, CASTRO VALLEY, CA 94552-5079 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 18, 1997 · Amount on Record |
| Deed Sale | Dec 18, 1997 · Amount on Record |
| Deed Document Number | 1997336600 |
| Prior Transfer Date | Dec 4, 1919 |
| Prior Transfer Doc | 0000015499 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 6669 GIANNINI CT, CASTRO VALLEY, CA 94552-5079 |
| Transaction Type | Mortgage |
| Record Updated | May 4, 2023 |
| Name | Verified Name |
|---|---|
| Address | 6669 GIANNINI CT, CASTRO VALLEY, CA 94552-5079 |
| Document Number | 0000038293 |
|---|---|
| Date | Apr 5, 2023 |
| Instrument | 2023038293 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Address | FORT WORTH, TX 76155 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $563,010 (+0.75%) Land $171,003 Building $399,007 | ||
| 2025 | $7,381.00 (+4.13%) Homeowner's exemption | $558,834 (+4.04%) Land $167,650 Building $391,184 | |
| 2023 | $7,088.00 Homeowner's exemption | $537,137 Land $161,141 Building $375,996 | $1,297,170 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 76% of the US · above 52% of California |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 411 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: Etheric Networks.
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