Contra Costa County property record for 518 Richardson St, Martinez, CA 94553
| Property Type | Recreational Vacant Land |
|---|---|
| Lot Size | 0.083 acres (3,600 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $591 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-062-004 |
| Primary APN | 372-062-004 |
|---|---|
| Alternative APN |
|
| Lot Area | 3,600 sqft (0.083 acres) |
|---|
| Street Address | 518 RICHARDSON ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1523 |
| Property Category | Public Works |
| Property Type | Public Works > Recreational Vacant Land |
| Local Zoning Code | R2.5 |
| Legal Description | ORIGINAL SURVEY POR LOTS 1 & 2 BLK 13 |
| Legal Subdivision | TOWN MARTINEZ |
| Legal Block | 13 |
| Legal Lot Number | 1,2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1052 |
| Census Tract | 316000 |
518 Richardson St, recreational vacant land, is held in a trust since May 2016.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 3276 THERESA LN, LAFAYETTE, CA 94549-1807 |
| 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 Transfer Date | May 20, 2016 |
| Transfer Doc | 0000097254 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 518 Richardson St was $591.
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 | $35,004 (+2%) Land $35,004 | |
| 2025 | $591.00 | $34,318 Land $34,318 |
| 2023 | $567.00 (+1.25%) | $32,987 Land $32,987 |
| 2022 | $560.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 518 Richardson St in Zone X, an area of minimal flood risk, though there have been 20 flood claims nearby since 1982.
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 42 policies |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 20 (1982–2017) |
| Claims Outside the SFHA | 4 of 20 |
| 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 518 Richardson St is moderate, ranking above 58% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 58% of the US · lower than 65% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect 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 | 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 371 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Astound Broadband Fiber · Cable in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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