Contra Costa County property record for 38 Rialto Dr, Clayton, CA 94517
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,032 sqft · built 1976 |
| Lot Size | 0.281 acres (12,240 sqft) |
| Owner | Company Name on Record |
| Last Sale | $249,000 (Nov 1994) |
| Tax Bill | $5,823 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-351-004-5 |
| Primary APN | 119-351-004-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,032 sqft Living Area |
| Gross Area | 2,465 sqft |
| 1st Floor Area | 2,032 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 12,240 sqft (0.281 acres) |
| Garage Type | Attached |
| Garage Area | 433 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 38 RIALTO DR |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1718 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | PUD |
| Legal Description | T04643 L0004 B EX MR |
| Legal Tract | 04643 |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 355306 |
Source: Contra Costa County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | 38 RIALTO DR, CLAYTON, CA 94517-1718 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 23, 1994 · Amount on Record |
| Deed Sale | Nov 23, 1994 · Amount on Record |
| Deed Document Number | 1994281917 |
| Last Transfer Date | Jun 25, 2004 |
| Transfer Doc | 0000244582 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Clayton City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $426,583 (+2%) Land $161,119 Building $265,464 | |
| 2025 | $5,823.00 (+4.99%) Homeowner's exemption | $418,219 (+4.04%) Land $157,960 Building $260,259 |
| 2023 | $5,546.00 (+1.69%) Homeowner's exemption | $401,980 Land $151,827 Building $250,153 |
| 2022 | $5,454.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Dec 1982 · tidal / storm surge |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Very High above 91% of the US · above 73% of California |
|---|---|
| Wildfire Likelihood | 1% annual chance |
| Exposure | Direct burnable vegetation |
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 274 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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