Contra Costa County property record for 323 Duperu Dr, Crockett, CA 94525
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,229 sqft · built 1981 |
| Lot Size | 0.193 acres (8,400 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $320,000 (May 1995) |
| Tax Bill | $7,355 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 354-352-009-6 |
| Primary APN | 354-352-009-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,229 sqft Living Area |
| 1st Floor Area | 1,334 sqft |
| Basement Area | 895 sqft |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1982 |
| Lot Area | 8,400 sqft (0.193 acres) |
| Garage Type | Attached |
| Garage Area | 415 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 323 DUPERU DR |
|---|---|
| City | CROCKETT |
| State | CA |
| Zip | 94525-1571 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P1 |
| Legal Description | T05000 L0073 B |
| Legal Tract | 05000 |
| Legal Lot Number | 73 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 357000 |
323 Duperu Dr is owned and occupied by two individuals who bought it in May 1995.
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 Individual Names on File |
|---|---|
| Mailing Address | 323 DUPERU DR, CROCKETT, CA 94525-1571 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 26, 1995 · Amount on File |
| Deed Sale | May 26, 1995 · Amount on File |
| Deed Document Number | 199584083 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 323 Duperu Dr was $7,355 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | John Swett Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $548,228 (+2%) Land $119,911 Building $428,317 | |
| 2025 | $7,355.00 Homeowner's exemption | $537,479 Land $117,560 Building $419,919 |
| 2023 | $7,042.00 (+0.59%) Homeowner's exemption | $516,610 Land $112,996 Building $403,614 |
| 2022 | $7,001.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 323 Duperu Dr in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1995.
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 |
| Flood Insurance Cost | Premium on File median of 11 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 11 in force |
| Nearby Flood Claims | 6 (1995–2017) |
| Claims Outside the SFHA | 1 of 6 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| Claims by Event |
|
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 323 Duperu Dr is moderate, ranking above 67% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 67% of the US · above 41% of California |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Direct burnable vegetation |
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 176 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Unwired.
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