Contra Costa County property record for 155 Mason Cir, Concord, CA 94520 · Last verified July 2026
| Property Type | Public Works > Federal Property (Exempt) |
|---|---|
| Year Built | Built 1989 |
| Square Footage | 15,339 sqft Gross Area |
| Lot Size | 2.45 acres |
| Tax Bill | $75.00 (2025) |
| Primary APN | 159-070-019-9 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Rooms |
|---|---|
| Building Area | 15,339 sqft Gross Area |
| 1st Floor | 15,339 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 107,157 sqft |
| Street Address | 155 MASON CIR |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-1213 |
| 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 > Federal Property (Exempt) |
| Legal Description | T05994 L0006 B EX MR |
| Legal Tract | 05994 |
| Legal Lot Number | 6 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1029 |
| Census Tract | 315000 |
Source: Contra Costa County records · APN 159-070-019-9
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 | 255 GLACIER DR, MARTINEZ, CA 94553-4825 |
| 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 | Concord City |
| Unified School District | Mount Diablo 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 | $6,111,255 (+2%) Land $1,339,893 Building $4,771,362 | |
| 2025 | $75.00 | $5,991,427 (+4.04%) Land $1,313,621 Building $4,677,806 |
| 2023 | $75.00 | $5,758,774 Land $1,262,612 Building $4,496,162 |
| 2022 | $75.00 |
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