Contra Costa County property record for 18 Mount Whitney Ct, Clayton, CA 94517 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 3 Baths |
| Year Built | Built 1977 |
| Square Footage | 2,861 sqft Living Area |
| Lot Size | 12,000 sqft (0.276 acres) |
| Garage | Attached, 663 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $4,113.00 (2025) |
| Primary APN | 119-382-010-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 13 Rooms |
| Building Area | 2,861 sqft Living Area |
| Gross Area | 3,524 sqft Gross Area |
| 1st Floor | 1,590 sqft 1st Floor |
| 2nd Floor | 1,271 sqft 2nd Floor |
| Stories | 2 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | Raised Ranch Style |
| Exterior Material | Stucco Exterior |
| Construction Type | Frame Construction |
| Roof Material | Wood Shingle Roof |
| Lot Area | 12,000 sqft (0.276 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 663 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 18 MT WHITNEY CT |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1539 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | T04014 L0021 B EX MR |
| Legal Subdivision | SUBDIVISION 4014 |
| Legal Tract | 04014 |
| Legal Lot Number | 21 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 4 |
| Census Block | 4002 |
| Census Tract | 355306 |
Source: Contra Costa County records · APN 119-382-010-5
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18 MT WHITNEY CT, CLAYTON, CA 94517-1539 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Feb 10, 2023 |
| Transfer Doc | 0000014324 |
| Record Refreshed | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 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 | $262,289 (+2%) Land $58,332 Building $203,957 | |
| 2025 | $4,113.00 (+3.39%) Homeowner's exemption | $257,147 (+4.04%) Land $57,189 Building $199,958 |
| 2023 | $3,978.00 (+4.03%) | $247,164 Land $54,969 Building $192,195 |
| 2022 | $3,824.00 |
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