Contra Costa County property record for 400 Soto St, Martinez, CA 94553
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 13,080 sqft · built 1989 |
| Lot Size | 1 acres (43,560 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $3,200,000 (Apr 2004) |
| Tax Bill | $81,381 (2025) |
| Flood Zone | Zone AO (high risk) |
| APN | 372-233-004-4 |
| Primary APN | 372-233-004-4 |
|---|---|
| Alternative APN |
|
| Total Rooms | 40 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 13,080 sqft Living Area |
| Gross Area | 4,360 sqft |
| 1st Floor Area | 4,360 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 43,560 sqft |
| Street Address | 400 SOTO ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2600 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | R3.5 |
| Legal Description | ORIG SURVEY POR BLKS 149 & 188 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 149,1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 318000 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 319 MAVERICK CT, LAFAYETTE, CA 94549-1811 |
| Owner Type | Individual |
| Vesting | Tenants in Common |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 8, 2004 · Amount on Record |
| Deed Sale | Apr 8, 2004 · Amount on Record |
| Deed Document Number | 2004121729 |
| Record Updated | Oct 29, 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 | $4,616,074 (+2%) Land $1,450,225 Building $3,165,849 | |
| 2025 | $81,381.00 (+4.31%) | $4,525,564 (+4.04%) Land $1,421,790 Building $3,103,774 |
| 2023 | $78,019.00 (-0.52%) | $4,349,832 Land $1,366,581 Building $2,983,251 |
| 2022 | $78,430.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AO high risk · sheet flow 1–3 ft |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 109 policies |
| Nearby Flood Policies | 109 in force |
| Nearby Flood Claims | 32 (1980–2019) |
| Claims Outside the SFHA | 3 of 32 |
| Most Recent Claim | Feb 2019 |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 54% of the US · lower than 68% 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 358 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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