Contra Costa County property record for 123 Mount Trinity Ct, Clayton, CA 94517 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 3 Baths |
| Year Built | Built 1979 |
| Square Footage | 2,960 sqft Living Area |
| Lot Size | 12,600 sqft (0.289 acres) |
| Garage | Attached, 671 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $5,144.00 (2025) |
| Primary APN | 119-520-009 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Building Area | 2,960 sqft Living Area |
| 1st Floor | 1,592 sqft 1st Floor |
| 2nd Floor | 1,368 sqft 2nd Floor |
| Stories | 2 Stories |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Cluster Style |
| Lot Area | 12,600 sqft (0.289 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 671 sqft Garage |
| Street Address | 123 MT TRINITY CT |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1617 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | T04018 L0026 B EX MR |
| Legal Tract | 04018 |
| Legal Lot Number | 26 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3011 |
| Census Tract | 355306 |
Source: Contra Costa County records · APN 119-520-009
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 | 123 MT TRINITY CT, CLAYTON, CA 94517-1617 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Apr 21, 2003 |
| Transfer Doc | 0000203059 |
| 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 | Clayton 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 | $363,937 (+2%) Land $76,210 Building $287,727 | |
| 2025 | $5,144.00 (+5.15%) Homeowner's exemption | $356,802 (+4.04%) Land $74,716 Building $282,086 |
| 2023 | $4,892.00 (+1.79%) Homeowner's exemption | $342,948 Land $71,815 Building $271,133 |
| 2022 | $4,806.00 |
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