Alameda County property record for 21985 Redwood Rd, Castro Valley, CA 94546
| Property Type | Commercial Office |
|---|---|
| Details | 1,200 sqft · built 1948 |
| Lot Size | 0.117 acres (5,100 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $126,500 (Jun 2000) |
| Tax Bill | $6,887 (2025) |
| Deeds & Mortgages | Apr 2026 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 415-90-79 |
| Primary APN | 415-90-79 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,200 sqft Total Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 5,100 sqft (0.117 acres) |
| Street Address | 21985 REDWOOD RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-6437 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | LOT: 00012 BLK: 0006 TR: 0803 |
| Legal Subdivision | TRACT 803 |
| Legal Tract | 0803 |
| Legal Block | 6 |
| Legal Lot Number | 12 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 431200 |
21985 Redwood Rd, a commercial property, is held in a trust since March 2026.
Source: Alameda County records, as of September 22, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 21985 REDWOOD RD, CASTRO VALLEY, CA 94546-6437 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 1, 2000 · Amount on File |
| Deed Sale | Jun 1, 2000 · Amount on File |
| Prior Sale | Oct 2, 1998 · Amount on File |
| Deed Document Number | 2000165724 |
| Last Transfer Date | Mar 24, 2026 |
| Transfer Doc | 0000046987 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Apr 9, 2026 |
| Property Address | 21985 REDWOOD RD, CASTRO VALLEY, CA 94546-6437 |
| Document Number | 0000046987 |
| Instrument Date | Mar 24, 2026 |
| Instrument | 202646987 |
| Transaction Type | Transfer |
| Record Updated | Aug 27, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 21985 REDWOOD RD, CASTRO VALLEY, CA 94546-6437 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 21985 Redwood Rd was $6,887, up 3.2% from the year before.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Hayward Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $353,419 (+2%) Land $144,064 Building $209,355 | |
| 2025 | $6,887.00 (+3.24%) | $346,491 Land $141,240 Building $205,251 |
| 2024 | $6,671.00 (-5.46%) | |
| 2023 | $7,056.00 | $333,038 Land $135,756 Building $197,282 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21985 Redwood Rd in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 15 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 15 in force |
| Nearby Flood Claims | 1 (1996) |
| Most Recent Claim | Dec 1996 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 21985 Redwood Rd has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 744 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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