Alameda County property record for 17211 Roberto St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,026 sqft · built 1948 |
| Lot Size | 0.127 acres (5,550 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,730 (2025) |
| Deeds & Mortgages | May 2022 Second Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-235-8 |
| Primary APN | 80A-235-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,026 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 5,550 sqft (0.127 acres) |
| Street Address | 17211 ROBERTO ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3848 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00452 BLK: MP: 0008 PAGE: 0076 |
| Legal Subdivision | EL PORTAL |
| Legal Lot Number | 452 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3021 |
| Census Tract | 430500 |
17211 Roberto St is owned and occupied by two individuals.
Source: Alameda County records, as of September 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 17211 ROBERTO ST, CASTRO VALLEY, CA 94546-3848 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 17211 ROBERTO ST, CASTRO VALLEY, CA 94546-3848 |
| Transaction Type | Mortgage |
| Record Updated | May 25, 2022 |
| Title Company | E-PLACER TITLE, PLACER TITLE |
| Name | Verified Name |
|---|---|
| Address | 17211 ROBERTO ST, CASTRO VALLEY, CA 94546-3848 |
| Document Number | 0000087434 |
|---|---|
| Date | May 3, 2022 |
| Instrument | 2022087434 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | May 1, 2042 |
| Rate Type | Fixed Rate |
|---|
The 2025 property tax bill for 17211 Roberto St was $5,730 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $370,417 (+0.11%) Land $148,963 Building $228,454 | ||
| 2025 | $5,730.00 Homeowner's exemption | $370,017 Land $146,042 Building $223,975 | |
| 2023 | $3,697.00 | $210,851 Land $140,372 Building $70,479 | $733,230 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 17211 Roberto St in Zone X, an area of minimal flood risk.
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.
The area around 17211 Roberto St 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 796 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 |
May also be available: Etheric Networks, GeoLinks, T-Mobile, Unwired, Verizon.
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