Contra Costa County property record for 628 Walnut Ave, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1.5 Baths |
| Architecture Style | Traditional |
| Year Built | Built 1941 |
| Square Footage | 1,350 sqft Living Area |
| Lot Size | 12,000 sqft (0.276 acres) |
| Garage | Attached, 360 sqft |
| Tax Bill | $4,551.00 (2025) |
Source: Contra Costa County records · APN 370-292-016
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 628 WALNUT AVE, MARTINEZ, CA 94553-3962 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Jan 30, 2004 |
| Transfer Doc | 0000033094 |
| Record Refreshed | 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 | $376,804 (+2%) Land $226,084 Building $150,720 | |
| 2025 | $4,551.00 (+6.18%) | $369,416 (+4.04%) Land $221,651 Building $147,765 |
| 2023 | $4,286.00 (+1.66%) | $355,073 Land $213,045 Building $142,028 |
| 2022 | $4,216.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone A |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | No |
| Base Flood Elevation | Not determined for this zone |
| Wildfire Risk | Moderate above 44% of the US · above 26% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,471 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | 370-292-016 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 5 Rooms |
| Building Area | 1,350 sqft Living Area |
| 1st Floor | 1,350 sqft 1st Floor |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Architectural Style | Traditional Style |
| Exterior Material | Wood Siding Exterior |
| Roof Material | Composition Shingle Roof |
| Lot Area | 12,000 sqft (0.276 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 360 sqft Garage |
| Heating System | Floor/Wall Furnace Heating |
|---|---|
| Heating Fuel | Gas Heating Fuel |
| Sewage | Septic Sewage |
| Water Source | Commercial Water Source |
| Street Address | 628 WALNUT AVE |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3962 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | ALHAMBRA VALLEY GARDEN #1 LOT 7 |
| Legal Subdivision | ALHAMBRA VLY GARDEN 01 |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1007 |
| Census Tract | 319001 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures