Contra Costa County property record for 403 Duboce Ave, Richmond, CA 94801
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,252 sqft · built 1952 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,859 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 561-191-025-7 |
| Primary APN | 561-191-025-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,252 sqft Living Area |
| 1st Floor Area | 1,252 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1956 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 300 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 403 DUBOCE AVE |
|---|---|
| City | RICHMOND |
| State | CA |
| Zip | 94801-1938 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1CD |
| Legal Description | WALLS 2ND ADDN LOTS 43 & 44 BLK 218 |
| Legal Subdivision | WALLS 2ND ADD |
| Legal Block | 218 |
| Legal Lot Number | 43,44 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 365002 |
403 Duboce Ave is owned and occupied by an individual.
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 | Individual Name on File |
|---|---|
| Mailing Address | 403 DUBOCE AVE, RICHMOND, CA 94801-1938 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 403 Duboce Ave was $1,859 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Richmond City |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $54,376 (+2%) Land $10,856 Building $43,520 | |
| 2025 | $1,859.00 Homeowner's exemption | $53,311 Land $10,644 Building $42,667 |
| 2023 | $1,762.00 (+2.74%) Homeowner's exemption | $51,243 Land $10,232 Building $41,011 |
| 2022 | $1,715.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 403 Duboce Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1997.
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 |
| Nearby Flood Claims | 2 (1997–1998) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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.
The area around 403 Duboce Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 | 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 475 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Sonic Telecom, Verizon.
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