Alameda County property record for 20003 Summerridge Dr, Castro Valley, CA 94552
| Property Type | Townhouse |
|---|---|
| Details | 4 bd · 3 ba · 1,666 sqft · built 1997 |
| Lot Size | 0.054 acres (2,347 sqft) |
| Owner | Trust Name on File |
| Last Sale | $245,500 (Aug 1997) |
| Tax Bill | $5,410 (2025) |
| Deeds & Mortgages | Nov 2021 Mortgage Jun 2020 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6420-31 |
| Primary APN | 85A-6420-31 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,666 sqft Living Area |
| Year Built | Built 1997 |
|---|---|
| Effective Year Built | Effective 1997 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 2,347 sqft (0.054 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 20003 SUMMERRIDGE DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5321 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00031 BLK: TR: 6660 |
| Legal Subdivision | TRACT 6660 |
| Legal Tract | 6660 |
| Legal Lot Number | 31 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 430101 |
20003 Summerridge Dr, a townhouse, is owner-occupied and held in a trust since April 2015.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 20003 SUMMERRIDGE DR, CASTRO VALLEY, CA 94552-5321 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 |
|---|---|
| Nov 1, 2021 | Deed of Trust, Mortgage · Conventional Mortgage FREMONT BANK |
| Jun 16, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FREMONT BANK |
| Aug 16, 2018 | Deed of Trust, Mortgage · Conventional Mortgage FREMONT BK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 13, 1997 · Amount on File |
| Deed Sale | Aug 13, 1997 · Amount on File |
| Deed Document Number | 1997204320 |
| Last Transfer Date | Apr 16, 2015 |
| Transfer Doc | 0000109715 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20003 SUMMERRIDGE DR, CASTRO VALLEY, CA 94552-5321 |
| Transaction Type | Mortgage |
| Record Updated | Nov 23, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 20003 SUMMERRIDGE DR, CASTRO VALLEY, CA 94552-5321 |
| Document Number | 0000358994 |
|---|---|
| Date | Nov 1, 2021 |
| Instrument | 2021358994 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Nov 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20003 SUMMERRIDGE DR, CASTRO VALLEY, CA 94552-5321 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000138465 |
|---|---|
| Date | Jun 16, 2020 |
| Instrument | 2020138465 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 20003 SUMMERRIDGE DR, CASTRO VALLEY, CA 94552-5321 |
| Document Number | 0000163365 |
| Instrument Date | Aug 16, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Sep 13, 2018 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 20003 SUMMERRIDGE DR CASTRO VALLEY CA 945525321, CASTRO VALLEY, CA 94552-5321 |
| Document Number | 0000163365 |
|---|---|
| Date | Aug 21, 2018 |
| Instrument | 163365 |
| Name | FREMONT BK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 20, 2048 |
The 2025 property tax bill for 20003 Summerridge Dr was $5,410 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 | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $392,658 (+0.21%) Land $114,002 Building $285,656 | ||
| 2025 | $5,410.00 Homeowner's exemption | $391,821 Land $111,766 Building $280,055 | |
| 2023 | $5,182.00 Homeowner's exemption | $376,609 Land $107,427 Building $269,182 | $1,215,720 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20003 Summerridge Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2017.
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 | 2 in force |
| Nearby Flood Claims | 2 (2017–2022) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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.
Wildfire risk around 20003 Summerridge Dr is high, ranking above 85% of the US, with a 0.8% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 85% of the US · above 65% of California |
|---|---|
| Wildfire Likelihood | 0.8% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 100 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL | 100 / 20 |
May also be available: Unwired.
5G (outdoors only) and 4G LTE
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