Contra Costa County property record for 4 Giannini Rd, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.5 Baths |
| Year Built | Built 1946 |
| Square Footage | 1,382 sqft Living Area |
| Lot Size | 30,492 sqft (0.7 acres) |
| Garage | Attached, 442 sqft |
| Tax Bill | $4,144.00 (2025) |
| Primary APN | 380-194-009-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,382 sqft Living Area |
| 1st Floor | 1,382 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1946 |
| Lot Area | 30,492 sqft (0.7 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 442 sqft Garage |
| Street Address | 4 GIANNINI RD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2214 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | POR RO LAS JUNTAS |
| Legal Subdivision | LAS JUNTAS RHO |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 2 |
| Census Block | 2001 |
| Census Tract | 320001 |
Source: Contra Costa County records · APN 380-194-009-3
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 | 17 GIANNINI RD, MARTINEZ, CA 94553-2213 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Sep 22, 2001 |
| Transfer Doc | 0000109643 |
| 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 |
| 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 | $261,996 (+2%) Land $179,513 Building $82,483 | |
| 2025 | $4,144.00 (+7.61%) | $256,860 (+4.04%) Land $175,994 Building $80,866 |
| 2023 | $3,851.00 (+0.29%) | $246,888 Land $169,161 Building $77,727 |
| 2022 | $3,840.00 |
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