Contra Costa County property record for 4135 Mattole Rd, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,997 sqft · built 2001 |
| Lot Size | 0.114 acres (4,968 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $350,000 (Apr 2015) |
| Tax Bill | $5,123 (2025) |
| Deeds & Mortgages | May 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-650-052-8 |
| Primary APN | 055-650-052-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,997 sqft Living Area |
| 1st Floor Area | 936 sqft |
| 2nd Floor Area | 1,061 sqft |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 4,968 sqft (0.114 acres) |
| Garage Type | Attached |
| Garage Area | 478 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4135 MATTOLE RD |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-9103 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8410 L127 |
| Legal Subdivision | CITY/ANTIOCH |
| Legal Tract | 8410 |
| Legal Lot Number | 127 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 355118 |
4135 Mattole Rd is owned and occupied by two individuals who acquired it in May 2019.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4135 MATTOLE RD, ANTIOCH, CA 94531-9103 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | Apr 2, 2015 · Amount on File |
| Deed Sale | Apr 2, 2015 · Amount on File |
| Prior Sale | Sep 2, 2008 · Amount on File |
| Deed Document Number | 201561197 |
| Last Transfer Date | May 1, 2019 |
| Transfer Doc | 0000074529 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 22, 2019 |
| Property Address | 4135 MATTOLE RD, ANTIOCH, CA 94531-9103 |
| Document Number | 0000074529 |
| Instrument Date | May 1, 2019 |
| Instrument | 74529 |
| Transaction Type | Transfer |
| Record Updated | May 31, 2019 |
| Title Company | WFG NATIONAL TITLE COMPANY, WFG NAT'L TITLE CO |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 4135 MATTOLE RD ANTIOCH CA 945319103, ANTIOCH, CA 94531-9103 |
| Document Number | 74530 |
|---|---|
| Date | May 22, 2019 |
| Instrument | 74530 |
| Name | NAVY FCU |
|---|---|
| Type | Credit Union |
| Address | VIENNA, VA 22180 |
| Amount | Amount on Record |
|---|---|
| Term | 360 Months |
| Due | May 21, 2049 |
The 2025 property tax bill for 4135 Mattole Rd was $5,123.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $429,047 (+2%) Land $91,935 Building $337,112 | |
| 2025 | $5,123.00 | $420,635 Land $90,133 Building $330,502 |
| 2023 | $4,824.00 (+1.54%) | $404,303 Land $86,634 Building $317,669 |
| 2022 | $4,751.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4135 Mattole Rd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 4135 Mattole Rd is moderate, ranking above 44% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 44% of the US · lower than 74% of California |
|---|---|
| Wildfire Likelihood | 0.09% 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 | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2022–2024) 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 675 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Unwired.
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