Contra Costa County property record for 642 la Corso Dr, Walnut Creek, CA 94598
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2 ba · 1,457 sqft · built 1976 |
| Lot Size | 0.057 acres (2,465 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $915,000 (Aug 2025) |
| Tax Bill | $8,642 (2025) |
| Deeds & Mortgages | May 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 144-220-014-1 |
| Primary APN | 144-220-014-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,457 sqft Living Area |
| Gross Area | 1,912 sqft |
| 1st Floor Area | 1,457 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 2,465 sqft (0.057 acres) |
| Garage Type | Attached |
| Garage Area | 455 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 642 LA CORSO DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-2217 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | T04670 L0014 B |
| Legal Subdivision | SUBDIVISION 4670 |
| Legal Tract | 04670 |
| Legal Lot Number | 14 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 338204 |
642 la Corso Dr, a townhouse, is owned and occupied by two individuals who bought it in August 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 642 LA CORSO DR, WALNUT CREEK, CA 94598-2217 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 |
|---|---|
| Last Sale | Aug 25, 2025 · Amount on File |
| Deed Sale | Aug 25, 2025 · Amount on File |
| Prior Sale | Jul 9, 2004 · Amount on File |
| Deed Document Number | 202586385 |
| Prior Transfer Date | Mar 31, 1997 |
| Prior Transfer Doc | 0000066707 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 642 LA CORSO DR, WALNUT CREEK, CA 94598-2217 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | LAWYERS TITLE |
| Name | Verified Name |
|---|---|
| Address | 642 LA CORSO DR, WALNUT CREEK, CA 94598-2217 |
| Document Number | 0000152005 |
|---|---|
| Date | May 24, 2021 |
| Instrument | 2021-152005 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Jun 1, 2041 |
The 2025 property tax bill for 642 la Corso Dr was $8,642.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $915,000 (+28.71%) Land $560,000 Building $355,000 | |
| 2025 | $8,642.00 Homeowner's exemption | $710,881 Land $386,806 Building $324,075 |
| 2023 | $8,298.00 (+0.9%) Homeowner's exemption | $683,279 Land $371,787 Building $311,492 |
| 2022 | $8,224.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 642 la Corso Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 8 (10% premium discount) |
| Nearby Flood Policies | 1 in force |
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 642 la Corso Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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.
Source: FCC Broadband Data Collection, based on 349 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL · Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, T-Mobile, Verizon.
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