Contra Costa County property record for 920 Mellus St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Federal Property (Exempt) |
|---|---|
| Details | 3,500 sqft · built 1960 |
| Lot Size | 0.282 acres (12,270 sqft) |
| Owner | Company Name on File |
| Tax Bill | $625 (2025) |
| Flood Zone | Zone AO (high risk) |
| APN | 374-071-006 |
| Primary APN | 374-071-006 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 3,500 sqft Gross Area |
| 1st Floor Area | 3,500 sqft |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Lot Area | 12,270 sqft (0.282 acres) |
| Street Address | 920 MELLUS ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1745 |
| Property Category | Public Works |
| Property Type | Public Works > Federal Property (Exempt) |
| Legal Description | VILLA SITES LOTS 2 & 6 POR 9 BLK 1 & ST ADJ |
| Legal Subdivision | VILLA SITES |
| Legal Block | 1 |
| Legal Lot Number | 2,6 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 317000 |
Source: Contra Costa County records · APN 374-071-006
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 | 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 | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $706,017 (+2%) Land $207,647 Building $498,370 | |
| 2025 | $625.00 (+0.48%) | $692,175 (+4.04%) Land $203,576 Building $488,599 |
| 2023 | $622.00 (-4.89%) | $665,299 Land $195,672 Building $469,627 |
| 2022 | $654.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133170002, 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 70 individual NFIP policies nearby |
| Nearby Flood Policies | 70 in force |
| Nearby Flood Claims | 51 (1980–2018) |
| Claims Outside the SFHA | 1 of 51 |
| Most Recent Claim | Sep 2018 |
| Claims By Storm |
|
| Wildfire Risk | Moderate above 46% of the US · above 27% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,136 per year |
| Exposure | Direct burnable vegetation at the parcel |
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 853 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Fiber | 1,500 / 1,500 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Unwired, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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