Contra Costa County property record for 808 Chert Pl, Clayton, CA 94517
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2.5 ba · 1,904 sqft · built 1993 |
| Lot Size | 0.107 acres (4,675 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $313,000 (May 1999) |
| Tax Bill | $6,812 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 118-460-033-4 |
| Primary APN | 118-460-033-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,904 sqft Living Area |
| 1st Floor Area | 1,027 sqft |
| 2nd Floor Area | 877 sqft |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Architectural Style | Townhouse |
| Lot Area | 4,675 sqft (0.107 acres) |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 808 CHERT PL |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1231 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | T7311 L33 |
| Legal Subdivision | BLACK DIAMOND SUB 7311 |
| Legal Tract | 7311 |
| Legal Lot Number | 33 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 355308 |
808 Chert Pl, a townhouse, is owned and occupied by two individuals who bought it in May 1999.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 808 CHERT PL, CLAYTON, CA 94517-1231 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 25, 1999 · Amount on File |
| Deed Sale | May 25, 1999 · Amount on File |
| Deed Document Number | 1999138652 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 808 CHERT PL, CLAYTON, CA 94517-1231 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 808 CHERT PL, CLAYTON, CA 94517-1231 |
| Document Number | 0000108797 |
|---|---|
| Date | Apr 12, 2021 |
| Instrument | 2021-108797 |
| Name | HOME POINT FINANCIAL CORPORATION |
|---|---|
| Type | Mortgage Company |
| Address | PARSIPPANY, NJ 07054 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | May 1, 2036 |
The 2025 property tax bill for 808 Chert Pl was $6,812 with a homeowner's exemption.
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 | $500,491 (+2%) Land $223,862 Building $276,629 | |
| 2025 | $6,812.00 Homeowner's exemption | $490,678 Land $219,473 Building $271,205 |
| 2023 | $6,386.00 (+0.57%) Homeowner's exemption | $471,626 Land $210,951 Building $260,675 |
| 2022 | $6,350.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 808 Chert Pl in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
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.
Wildfire risk around 808 Chert Pl is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
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 342 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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