Alameda County property record for 17228 Roberto St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,306 sqft · built 1956 |
| Lot Size | 0.128 acres (5,616 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $5,786 (2025) |
| Deeds & Mortgages | Jun 2021 Transfer Dec 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-234-15 |
| Primary APN | 80A-234-15 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,306 sqft Living Area |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 5,616 sqft (0.128 acres) |
| Street Address | 17228 ROBERTO ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3827 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUBD:EL PORTAL |
| Legal Subdivision | EL PORTAL |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3018 |
| Census Tract | 430500 |
Source: Alameda County assessment roll, as of July 1, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 18112 APRICOT WAY, CASTRO VALLEY, CA 94546-2329 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jun 16, 2021 | Transfer on Death Deed, Transfer |
| Dec 31, 2020 | Quit Claim Deed, Transfer OTHER |
| Deed Names | Verified Name on Deed |
|---|---|
| Prior Sale | Dec 12, 2008 · Amount on Record |
| Last Transfer Date | Dec 31, 2020 |
| Transfer Doc | 0000372252 |
| Record Updated | Jun 8, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 16, 2021 |
| Property Address | 17228 ROBERTO ST, CASTRO VALLEY, CA 94546-3827 |
| Document Number | 0000218329 |
| Map Reference | MB 8 PG 76 |
| Instrument Date | Jun 15, 2021 |
| Instrument | 2021218329 |
| Transaction Type | Transfer |
| Record Updated | Jul 5, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18112 APRICOT WAY, CASTRO VALLEY, CA 94546-2329 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Dec 31, 2020 |
| Property Address | 17228 ROBERTO ST, CASTRO VALLEY, CA 94546-3827 |
| Document Number | 0000372252 |
| Instrument Date | Dec 26, 2020 |
| Instrument | 372252 |
| Transaction Type | Transfer |
| Record Updated | Mar 18, 2021 |
| Title Company | OTHER |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | 18112 APRICOT WAY CASTRO VALLEY CA 945462329, CASTRO VALLEY, CA 94546-2329 |
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $5,786.00 (+3.86%) | $412,054 (+4.04%) Land $123,616 Building $288,438 |
| 2023 | $5,571.00 | $396,057 Land $118,817 Building $277,240 |
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
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: California Internet, Etheric Communications, LLC., T-Mobile USA, Unwired, Verizon.
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