Contra Costa County property record for 800 Ferry St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Federal Property (Exempt) |
|---|---|
| Details | 27,500 sqft · built 1925 |
| Lot Size | 0.257 acres (11,178 sqft) |
| Owner | Company Name on File |
| Flood Zone | Zone AO (high risk) |
| APN | 373-202-002-3 |
| Primary APN | 373-202-002-3 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 27,500 sqft Gross Area |
| 1st Floor Area | 27,500 sqft |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1925 |
| Lot Area | 11,178 sqft (0.257 acres) |
| Street Address | 800 FERRY ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1626 |
| Property Category | Public Works |
| Property Type | Public Works > Federal Property (Exempt) |
| Legal Description | ADDL SURVEY POR LOTS 1,2 & 3 BLK 338 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 338 |
| Legal Lot Number | 1,2,3 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1035 |
| Census Tract | 316000 |
Source: Contra Costa County records · APN 373-202-002-3
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 | 255 GLACIER DR, MARTINEZ, CA 94553-4825 |
| 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 is set for property tax purposes and is not a market price estimate.
| Year | Assessed Value |
|---|---|
| 2026 | $5,724,705 (+6.12%) Land $319,804 Building $5,404,901 |
| 2023 | $5,394,520 Land $301,360 Building $5,093,160 |
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 AO sheet flow 1–3 ft |
|---|---|
| Special Flood Hazard Area | Yes |
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| 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 | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond 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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