Contra Costa County property record for 417 Main St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Commercial Vacant Land |
|---|---|
| Lot Size | 0.23 acres (10,000 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,471 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 373-222-006 |
| Primary APN | 373-222-006 |
|---|---|
| Alternative APN |
|
| Lot Area | 10,000 sqft (0.23 acres) |
|---|---|
| View / Lot | Corner |
| Street Address | 417 MAIN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553 |
| Property Category | Commercial |
| Property Type | Vacant Land > Commercial |
| Legal Description | ORIGINAL SURVEY LOTS 5 & 6 BLK 18 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 18 |
| Legal Lot Number | 5,6 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1026 |
| Census Tract | 316000 |
Source: Contra Costa County records · APN 373-222-006
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 611 BERRELLESA ST, MARTINEZ, CA 94553-1537 |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $162,475 (+2%) Land $162,475 | |
| 2025 | $2,471.00 (+4.84%) | $159,290 (+4.04%) Land $159,290 |
| 2023 | $2,357.00 (+1.33%) | $153,105 Land $153,105 |
| 2022 | $2,326.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133160001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Nearest Special Flood Hazard Area | Zone AO, within 100 ft |
| Flood Insurance Cost | Premium on Record median of 42 individual NFIP policies nearby |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 20 (1982–2017) |
| Claims Outside the SFHA | 4 of 20 |
| Most Recent Claim | Jan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides |
| Claims By Storm |
|
| Wildfire Risk | Moderate above 59% of the US · above 35% of California |
|---|---|
| Wildfire Likelihood | About 1 in 730 per year |
| Exposure | Indirect within ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 371 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Radiate Holdings | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 2,000 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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