Contra Costa County property record for 423 Augustus Ct, Walnut Creek, CA 94598
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2.5 ba · 1,898 sqft · built 1988 |
| Lot Size | 0.057 acres (2,465 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $5,229 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 144-270-180-9 |
| Primary APN | 144-270-180-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,898 sqft Living Area |
| 1st Floor Area | 952 sqft |
| 2nd Floor Area | 946 sqft |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Townhouse |
| Lot Area | 2,465 sqft (0.057 acres) |
| Garage Type | Attached |
| Garage Area | 450 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 423 AUGUSTUS CT |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-2200 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | T05238 L0075 B |
| Legal Tract | 05238 |
| Legal Lot Number | 75 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 338204 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 423 AUGUSTUS CT, WALNUT CREEK, CA 94598-2200 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Dec 2, 1993 |
| Transfer Doc | 0000345436 |
| Record Updated | Sep 20, 2026 |
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 | $409,767 (+2%) Land $120,049 Building $289,718 | |
| 2025 | $5,229.00 (+4.37%) Homeowner's exemption | $401,734 (+4.04%) Land $117,696 Building $284,038 |
| 2023 | $5,010.00 (+0.91%) Homeowner's exemption | $386,136 Land $113,127 Building $273,009 |
| 2022 | $4,965.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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 | 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 320 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 · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Sonic Telecom, Verizon.
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