Contra Costa County property record for 620 Missouri St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 748 sqft · built 1940 |
| Lot Size | 0.157 acres (6,850 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $5,388 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 376-051-033-3 |
| Primary APN | 376-051-033-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 748 sqft Living Area |
| 1st Floor Area | 748 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Bungalow |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 6,850 sqft (0.157 acres) |
| Lot Dimensions | 137 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Wall Unit |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 620 MISSOURI ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3428 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LEWIS TRACT #1 POR LOT 14 |
| Legal Subdivision | LEWIS 01 |
| Legal Tract | 1 |
| Legal Lot Number | 14 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 319002 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 2011 1ST AVE, WALNUT CREEK, CA 94597-2433 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jun 4, 2004 |
| Transfer Doc | 0000240122 |
| Record Updated | Sep 20, 2026 |
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 | $369,789 (+2%) Land $293,661 Building $76,128 | |
| 2025 | $5,388.00 (+7.33%) Homeowner's exemption | $362,539 (+4.04%) Land $287,903 Building $74,636 |
| 2023 | $5,020.00 (+2.95%) Homeowner's exemption | $348,463 Land $276,724 Building $71,739 |
| 2022 | $4,876.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 765 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber | 1,500 / 1,500 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: T-Mobile, Verizon.
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