Alameda County property record for 20488 Summercrest Dr, Castro Valley, CA 94552
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 2.5 ba · 1,282 sqft · built 1998 |
| Lot Size | 0.045 acres (1,978 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $655,000 (Jun 2017) |
| Tax Bill | $9,839 (2025) |
| Deeds & Mortgages | Aug 2019 Mortgage Jun 2017 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6420-17 |
| Primary APN | 85A-6420-17 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,282 sqft Living Area |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 1,978 sqft (0.045 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 20488 SUMMERCREST DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5336 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00017 BLK: TR: 6660 |
| Legal Subdivision | TRACT 6660 |
| Legal Tract | 6660 |
| Legal Lot Number | 17 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 430101 |
20488 Summercrest Dr, a townhouse, is owned and occupied by two individuals who acquired it in August 2019.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 20488 SUMMERCREST DR, CASTRO VALLEY, CA 94552-5336 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 |
|---|---|
| Aug 30, 2019 | Intrafamily Transfer, Transfer · Conventional Mortgage FIRST REPUBLIC BANK |
| Jun 30, 2017 | Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 30, 2017 · Amount on File |
| Deed Sale | Jun 30, 2017 · Amount on File |
| Prior Sale | Mar 21, 2005 · Amount on File |
| Deed Document Number | 2017143034 |
| Last Transfer Date | Aug 23, 2019 |
| Transfer Doc | 0000171677 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 30, 2019 |
| Property Address | 20488 SUMMERCREST DR, CASTRO VALLEY, CA 94552-5336 |
| Document Number | 0000171677 |
| Map Reference | MB 214 PG 74-80 |
| Instrument Date | Aug 23, 2019 |
| Instrument | 2019171677 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | NORTH AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 20488 SUMMERCREST DR, CASTRO VALLEY, CA 94552-5336 |
| Document Number | 0000171678 |
|---|---|
| Date | Aug 30, 2019 |
| Instrument | 2019171678 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2049 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 30, 2017 |
| Property Address | 20488 SUMMERCREST DR, CASTRO VALLEY, CA 94552-5336 |
| Document Number | 0000143034 |
| Map Reference | MB214 PG74-80 |
| Instrument Date | Jun 11, 2017 |
| Instrument | 2017143034 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 49 MINERVA ST, SAN FRANCISCO, CA 94112-3048 |
| Document Number | 0000143035 |
|---|---|
| Date | Jun 30, 2017 |
| Instrument | 2017143035 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2047 |
The 2025 property tax bill for 20488 Summercrest Dr was $9,839.
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 | $775,368 (+2%) Land $232,610 Building $542,758 | ||
| 2025 | $9,839.00 | $760,166 Land $228,050 Building $532,116 | |
| 2023 | $9,468.00 | $730,651 Land $219,195 Building $511,456 | $872,100 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20488 Summercrest 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 20488 Summercrest Dr is high, ranking above 79% of the US, with a 0.6% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 79% of the US · above 57% of California |
|---|---|
| Wildfire Likelihood | 0.6% 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 496 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.
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