Contra Costa County property record for 931 Walnut St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,010 sqft · built 1953 |
| Lot Size | 0.109 acres (4,746 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,396 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 375-051-010-3 |
| Primary APN | 375-051-010-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,010 sqft Living Area |
| 1st Floor Area | 1,010 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1963 |
| Lot Area | 4,746 sqft (0.109 acres) |
| Garage Type | Attached |
| Garage Area | 180 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 931 WALNUT ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2737 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MARTINEZ LAND #6 LOT 3 BLK 34 |
| Legal Subdivision | MARTINEZ LAND COMPA |
| Legal Block | 34 |
| Legal Lot Number | 3 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 319002 |
Source: Contra Costa County records · APN 375-051-010-3
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 | 931 WALNUT ST, MARTINEZ, CA 94553-2737 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Aug 08, 2001 |
| Transfer Doc | 0000239380 |
| 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 | $138,410 (+2%) Land $52,676 Building $85,734 | |
| 2025 | $2,396.00 (+6.77%) Homeowner's exemption | $135,697 (+4.04%) Land $51,644 Building $84,053 |
| 2023 | $2,244.00 (+5.3%) Homeowner's exemption | $130,430 Land $49,640 Building $80,790 |
| 2022 | $2,131.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133190021, 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 | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 2 in force |
| 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 765 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 |
| Unwired | Fixed Wireless | 300 / 25 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon, T-Mobile USA, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
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