Contra Costa County property record for 615 Arch St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
|---|---|
| Year Built | Built 1940 |
| Square Footage | 4,038 sqft Gross Area |
| Lot Size | 2.5 acres |
| Occupancy | Owner Occupied |
| Tax Bill | $4,947.00 (2025) |
| Primary APN | 375-081-001-6 |
|---|---|
| Alternative APN |
|
| Building Area | 4,038 sqft Gross Area |
|---|---|
| 1st Floor | 4,038 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Lot Area | 108,900 sqft |
| Street Address | 615 ARCH ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3270 |
| Property Usage | Land which may be one of the following: Public spaces (i.e. parks and beaches), public buildings (i.e. schools, hospitals, courthouse), public services (i.e. water treatment, electrical grid/product, dams) Property Usage |
| Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
| Legal Description | RO LAS JUNTAS 2.500 AC |
| Legal Subdivision | LAS JUNTAS RHO |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1003 |
| Census Tract | 319002 |
Source: Contra Costa County records · APN 375-081-001-6
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 | 615 ARCH ST, MARTINEZ, CA 94553-3270 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| 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 | $353,500 (+2%) Land $43,218 Building $310,282 | |
| 2025 | $4,947.00 (-7.32%) Additional exemption filed | $346,570 (+4.04%) Land $42,371 Building $304,199 |
| 2023 | $5,338.00 (+49.15%) Additional exemption filed | $333,115 Land $40,727 Building $292,388 |
| 2022 | $3,579.00 |
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