Contra Costa County property record for 644 Filbert Ct, Walnut Creek, CA 94598
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,612 sqft · built 1966 |
| Lot Size | 0.358 acres (15,600 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $3,200 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 142-274-019-9 |
| Primary APN | 142-274-019-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,612 sqft Living Area |
| 1st Floor Area | 1,612 sqft |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1976 |
| Lot Area | 15,600 sqft (0.358 acres) |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 644 FILBERT CT |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-3817 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R12 |
| Legal Description | TRACT 3353 LOT 54 |
| Legal Subdivision | BROOKTREE #5 SUBDIVISION 3353 |
| Legal Tract | 3353 |
| Legal Lot Number | 54 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1016 |
| Census Tract | 338301 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 644 FILBERT CT, WALNUT CREEK, CA 94598-3817 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Dec 13, 1999 |
| Transfer Doc | 0000329289 |
| 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 | $220,973 (+2%) Land $91,922 Building $129,051 | |
| 2025 | $3,200.00 (+4.75%) Homeowner's exemption | $216,641 (+4.04%) Land $90,120 Building $126,521 |
| 2023 | $3,055.00 (+0.89%) Homeowner's exemption | $208,230 Land $86,621 Building $121,609 |
| 2022 | $3,028.00 |
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
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 391 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: Sonic Telecom, Verizon.
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