Contra Costa County property record for 421 Washington Ave, Richmond, CA 94801
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.5 ba · 1,515 sqft · built 1904 |
| Lot Size | 0.064 acres (2,800 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $5,032 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 558-082-012-3 |
| Primary APN | 558-082-012-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,515 sqft Living Area |
| 1st Floor Area | 1,101 sqft |
| Basement Area | 414 sqft |
| Year Built | Built 1904 |
|---|---|
| Effective Year Built | Effective 1915 |
| Lot Area | 2,800 sqft (0.064 acres) |
| Garage Type | Attached |
| Garage Area | 238 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 421 WASHINGTON AVE |
|---|---|
| City | RICHMOND |
| State | CA |
| Zip | 94801-3905 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | NICHOLL SUBN 4 J |
| Legal Subdivision | NICHOLL SUB |
| Legal Block | J |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2033 |
| Census Tract | 378000 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Point Richmond Historic District listed 1979 · 339 contributing resources · NRIS 79000472 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 421 WASHINGTON AVE, RICHMOND, CA 94801-3905 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| 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 | Richmond City |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $258,367 (+2%) Land $88,146 Building $170,221 | |
| 2025 | $5,032.00 (+3.07%) Homeowner's exemption | $253,302 (+4.04%) Land $86,418 Building $166,884 |
| 2023 | $4,882.00 (+2.35%) Homeowner's exemption | $243,467 Land $83,063 Building $160,404 |
| 2022 | $4,770.00 |
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 |
| Flood Insurance Cost | Premium on Record median of 64 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 64 in force |
| Nearby Flood Claims | 2 (2005–2017) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Apr 2017 |
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 | 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 227 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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