Alameda County property record for 5943 Greenridge Rd, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,381 sqft · built 1963 |
| Lot Size | 0.245 acres (10,664 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,130,000 (May 2016) |
| Tax Bill | $16,653 (2025) |
| Deeds & Mortgages | Dec 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-1605-33 |
| Primary APN | 85-1605-33 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,381 sqft Living Area |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | H-Shape |
| Construction Type | Wood |
| Lot Area | 10,664 sqft (0.245 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5943 GREENRIDGE RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1812 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00010 BLK: 000D TR: 2166 |
| Legal Tract | 2166 |
| Legal Block | D |
| Legal Lot Number | 10 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1016 |
| Census Tract | 430102 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 260 BLISS CT, WALNUT CREEK, CA 94598-3417 |
| Owner Type | Company |
| Vesting | Undivided Interest |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 19, 2016 · Amount on Record |
| Deed Sale | May 19, 2016 · Amount on Record |
| Deed Document Number | 2016127851 |
| Prior Transfer Date | Jun 4, 1997 |
| Prior Transfer Doc | 0000030654 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 5943 GREENRIDGE RD, CASTRO VALLEY, CA 94552-1812 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000237561 |
|---|---|
| Date | Dec 14, 2018 |
| Instrument | 2018237561 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 1, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.7% |
| Type Change Date | Jan 1, 2029 |
| Change Frequency | Annually |
| Min Rate At Change | 2.65% |
| Max Rate At Change | 10.9% |
| Index | 1-Year LIBOR |
| Max Rate | 10.9% |
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 | $1,364,407 (+2%) Land $409,322 Building $955,085 | ||
| 2025 | $16,653.00 (+3.71%) | $1,337,660 (+4.04%) Land $401,298 Building $936,362 | |
| 2023 | $16,058.00 | $1,285,724 Land $385,717 Building $900,007 | $1,613,880 |
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 71% of the US · above 46% of California |
|---|---|
| Wildfire Likelihood | 0.3% 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 389 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired.
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