Alameda County property record for 2156 Altamont Rd, Castro Valley, CA 94578
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,650 sqft · built 1947 |
| Lot Size | 0.114 acres (4,972 sqft) |
| Owner | Company Name on Record |
| Last Sale | $115,000 (Feb 1996) |
| Tax Bill | $4,125 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 79-4-20 |
| Primary APN | 79-4-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,650 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 4,972 sqft (0.114 acres) |
| Terrain | Gentle Slope |
| Street Address | 2156 ALTAMONT RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94578-1309 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00020 BLK: AR: 0079 PAGE: 0004 |
| Legal Subdivision | HILLCREST KNOLLS |
| Legal Block | 3 |
| Legal Lot Number | 16 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 432800 |
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 | 2144 ALTAMONT RD, CASTRO VALLEY, CA 94578-1309 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 22, 1996 · Amount on Record |
| Deed Sale | Feb 22, 1996 · Amount on Record |
| Prior Sale | Sep 19, 1995 · Amount on Record |
| Deed Document Number | 199643281 |
| Prior Transfer Date | Sep 13, 1995 |
| Prior Transfer Doc | 0000215824 |
| Record Updated | Oct 29, 2026 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Leandro Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $222,428 (+2%) Land $58,473 Building $163,955 | |
| 2025 | $4,125.00 (+5.58%) | $218,067 (+4.04%) Land $57,326 Building $160,741 |
| 2023 | $3,907.00 | $209,600 Land $55,100 Building $154,500 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | None beyond 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 791 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, T-Mobile, Unwired.
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