Contra Costa County property record for 222 Mountaire Cir, Clayton, CA 94517
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,141 sqft · built 1972 |
| Lot Size | 0.321 acres (14,000 sqft) |
| Owner | Company Name on File |
| Last Sale | $595,000 (Jun 2012) |
| Tax Bill | $9,524 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-201-001-3 |
| Primary APN | 119-201-001-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,141 sqft Living Area |
| 1st Floor Area | 1,731 sqft |
| Basement Area | 410 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Cluster |
| Lot Area | 14,000 sqft (0.321 acres) |
| Garage Type | Attached |
| Garage Area | 491 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 222 MOUNTAIRE CIR |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1523 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T04013 L0001 B EX MR |
| Legal Tract | 04013 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 355306 |
Source: Contra Costa County records · APN 119-201-001-3
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 | 222 MOUNTAIRE CIR, CLAYTON, CA 94517-1523 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 27, 2012 · Amount on Record |
| Deed Sale | Jun 27, 2012 · Amount on Record |
| Prior Sale | Sep 26, 2008 · Amount on Record |
| Deed Document Number | 2012151373 |
| Last Transfer Date | Mar 20, 2015 |
| Transfer Doc | 0000051973 |
| Record Updated | 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 | $762,284 (+2%) Land $535,524 Building $226,760 | |
| 2025 | $9,524.00 (+4.49%) Homeowner's exemption | $747,338 (+4.04%) Land $525,024 Building $222,314 |
| 2023 | $9,115.00 (+1.36%) Homeowner's exemption | $718,320 Land $504,638 Building $213,682 |
| 2022 | $8,993.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
| Wildfire Risk | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T, Radiate Holdings.
Based on FCC filings for 351 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CONTRA COSTA WATER DISTRICT serves 210,500 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures