Contra Costa County property record for 1435 Richardson St, Martinez, CA 94553
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 2 ba · 2,122 sqft · built 1922 |
| Lot Size | 0.1 acres (4,356 sqft) |
| Owner | Trust Name on File |
| Last Sale | $502,000 (May 2015) |
| Tax Bill | $8,651 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-324-004-4 |
| Primary APN | 372-324-004-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,122 sqft Living Area |
| 1st Floor Area | 1,082 sqft |
| 2nd Floor Area | 1,040 sqft |
| Year Built | Built 1922 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Duplex Single |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 4,356 sqft (0.1 acres) |
| Lot Dimensions | 100 ft deep x 44 ft wide |
| Cooling System | Wall Unit |
|---|---|
| Heating System | Central |
| Street Address | 1435 RICHARDSON ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2426 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R1 |
| Legal Description | RO EL PINOLE .10 AC |
| Legal Subdivision | EL PINOLE RHO |
| Legal Lot Number | JJ |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 318000 |
1435 Richardson St, a duplex, is held in a trust since May 2015.
Source: Contra Costa County records, as of October 9, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 5330 STONEHURST DR, MARTINEZ, CA 94553-9721 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 12, 2015 · Amount on File |
| Deed Sale | May 12, 2015 · Amount on File |
| Prior Sale | Apr 25, 2014 · Amount on File |
| Deed Document Number | 201592310 |
| Prior Transfer Date | Mar 26, 2014 |
| Prior Transfer Doc | 0000058787 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1435 Richardson St was $8,651.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $615,385 (+2%) Land $416,797 Building $198,588 | |
| 2025 | $8,651.00 | $603,320 Land $408,625 Building $194,695 |
| 2023 | $8,213.00 (+0.62%) | $579,894 Land $392,758 Building $187,136 |
| 2022 | $8,162.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1435 Richardson St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AO, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 23 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 23 in force |
| Nearby Flood Claims | 12 (1980–2022) |
| Claims Outside the SFHA | 3 of 12 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, 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 1435 Richardson St is moderate, ranking above 66% 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 66% 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 | CITY OF MARTINEZ serves 31,015 people · EPA ID CA0710006 |
|---|---|
| Water Source | Purchased surface water from CONTRA COSTA WATER DISTRICT |
| Last State Inspection | Oct 2025 |
| Lead | Under 1 ppb (2023–2025) 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 348 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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