Alameda County property record for 20673 Forest Ave, Castro Valley, CA 94546
| Property Type | Triplex |
|---|---|
| Details | 6 bd · 3 ba · 2,139 sqft · built 1962 |
| Lot Size | 0.17 acres (7,402 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,395,000 (Nov 2024) |
| Tax Bill | $18,754 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-724-72-2 |
| Primary APN | 84C-724-72-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 12 Rooms |
| Units | 3 Units |
| Stories | 1 Story |
| Building Area | 2,139 sqft Living Area |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Construction Type | Wood |
| Lot Area | 7,402 sqft (0.17 acres) |
| Street Address | 20673 FOREST AVE, C |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4566 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Legal Description | LOT: 00002 BLK: 0072 AR: 084C PAGE: 0724 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 430800 |
20673 Forest Ave is owned by two individuals who bought it in November 2024.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 184 VICTORY CIR, SAN RAMON, CA 94582-4975 |
| Owner Type | Individual |
| Vesting | Community Property |
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 | Nov 19, 2024 · Amount on File |
| Deed Sale | Nov 19, 2024 · Amount on File |
| Prior Sale | Dec 6, 2006 · Amount on File |
| Deed Document Number | 2024142598 |
| Prior Transfer Date | Jun 28, 2005 |
| Prior Transfer Doc | 0000395058 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 20673 Forest Ave was $18,754.
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 |
|---|---|---|
| 2026 | $1,422,900 (+2%) Land $426,870 Building $996,030 | |
| 2025 | $18,754.00 | $1,395,000 Land $418,500 Building $976,500 |
| 2023 | $15,241.00 | $1,066,793 Land $320,038 Building $746,755 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 20673 Forest Ave in Zone X, an area of minimal flood risk.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 1 in force |
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 20673 Forest Ave 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 777 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 · DSL · Fixed Wireless 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: GeoLinks.
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