Alameda County property record for 17106 Roberto St, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,330 sqft · built 1958 |
| Lot Size | 0.131 acres (5,724 sqft) |
| Owner | Company Name on File |
| Last Sale | $380,000 (Mar 2013) |
| Tax Bill | $6,454 (2025) |
| Deeds & Mortgages | Jul 2026 Transfer May 2026 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-234-18 |
| Primary APN | 80A-234-18 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,330 sqft Living Area |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,724 sqft (0.131 acres) |
| Street Address | 17106 ROBERTO ST |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3849 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00018 BLK: AR: 080A PAGE: 0234 |
| Legal Subdivision | EL PORTAL |
| Legal Lot Number | 517 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3018 |
| Census Tract | 430500 |
17106 Roberto St is owned by a company that acquired it in December 2024.
Source: Alameda County records, as of October 13, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 2965 HARDING CIR, RENO, NV 89503-2158 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 2, 2026 | Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT |
| May 22, 2026 | Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT |
| May 19, 2021 | Deed of Trust, Mortgage · Conventional Mortgage PENNYMAC LOAN SERVICES LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 4, 2013 · Amount on File |
| Deed Sale | Mar 4, 2013 · Amount on File |
| Deed Document Number | 201383357 |
| Last Transfer Date | Dec 2, 2024 |
| Transfer Doc | 0000147446 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 2, 2026 |
| Property Address | 17106 ROBERTO ST, CASTRO VALLEY, CA 94546-3849 |
| Document Number | 0000086614 |
| Instrument Date | Jun 26, 2026 |
| Instrument | 202686614 |
| Transaction Type | Transfer |
| Record Updated | Aug 30, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2965 HARDING CIR, RENO, NV 89503-2158 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 22, 2026 |
| Property Address | 17106 ROBERTO ST, CASTRO VALLEY, CA 94546-3849 |
| Document Number | 0000067422 |
| Instrument Date | May 21, 2026 |
| Instrument | 202667422 |
| Transaction Type | Transfer |
| Record Updated | Aug 29, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2965 HARDING CIR, RENO, NV 89503-2158 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 17106 ROBERTO ST, CASTRO VALLEY, CA 94546-3849 |
| Transaction Type | Mortgage |
| Record Updated | Jun 4, 2021 |
| Name | Verified Name |
|---|---|
| Address | 733 YARO CT, FREMONT, CA 94539-4755 |
| Document Number | 0000189152 |
|---|---|
| Date | May 19, 2021 |
| Instrument | 2021189152 |
| Name | PENNYMAC LOAN SERVICES LLC |
|---|---|
| Type | Mortgage Company |
| Address | WESTLAKE VILLAGE, CA 91361 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Jun 1, 2036 |
The 2025 property tax bill for 17106 Roberto St was $6,454.
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 | $477,280 (+2%) Land $143,184 Building $334,096 | ||
| 2025 | $6,454.00 | $467,924 Land $140,377 Building $327,547 | |
| 2023 | $6,215.00 | $449,755 Land $134,926 Building $314,829 | $629,550 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 17106 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 17106 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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