Alameda County property record for 5840 Greenridge Rd, Castro Valley, CA 94552 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,834 sqft · built 1960 |
| Lot Size | 0.177 acres (7,700 sqft) |
| Owner | Company Name on File |
| Last Sale | $245,000 (Feb 1997) |
| Tax Bill | $5,495 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-1604-5 |
| Primary APN | 85-1604-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,834 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | H-Shape |
| Exterior Material | Wood Shingle |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 7,700 sqft (0.177 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 5840 GREENRIDGE RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1816 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00005 BLK: 0002 TR: 2084 |
| Legal Tract | 2084 |
| Legal Block | 2 |
| Legal Lot Number | 5 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 430102 |
Source: Alameda County records · APN 85-1604-5
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 | Company Name on File |
|---|---|
| Mailing Address | 5840 GREENRIDGE RD, CASTRO VALLEY, CA 94552-1816 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Feb 27, 1997 · Amount on Record |
| Deed Sale | Feb 27, 1997 · Amount on Record |
| Deed Document Number | 199754406 |
| Last Transfer Date | Dec 19, 2013 |
| Transfer Doc | 0000394438 |
| Record Updated | 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 | $399,983 (+0.25%) Land $122,095 Building $284,888 | ||
| 2025 | $5,495.00 (+4.39%) Homeowner's exemption | $399,004 (+4.04%) Land $119,701 Building $279,303 | |
| 2023 | $5,264.00 Homeowner's exemption | $383,512 Land $115,053 Building $268,459 | $1,319,130 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Moderate above 63% of the US · above 38% of California |
|---|---|
| Wildfire Likelihood | About 1 in 500 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 389 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: AT&T, Unwired. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
Search by:
By searching, you agree to: Terms • Privacy • Disclosures