Contra Costa County property record for 4100 Fariss Ln, El Sobrante, CA 94803
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,315 sqft · built 1957 |
| Lot Size | 0.2 acres (8,700 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $2,398 (2025) |
| Deeds & Mortgages | Aug 2018 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 425-121-006 |
| Primary APN | 425-121-006 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,315 sqft Living Area |
| 1st Floor Area | 1,153 sqft |
| Basement Area | 162 sqft |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Lot Area | 8,700 sqft (0.2 acres) |
| Garage Type | Attached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4100 FARISS LN |
|---|---|
| City | EL SOBRANTE |
| State | CA |
| Zip | 94803-2212 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | TRACT 2000 POR LOT 30 |
| Legal Subdivision | FOSTER TRACT |
| Legal Tract | 2000 |
| Legal Lot Number | 30 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 363000 |
4100 Fariss Ln is owned and occupied by two individuals who acquired it in July 2009.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4100 FARISS LN, EL SOBRANTE, CA 94803-2212 |
| 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 Transfer Date | Jul 13, 2009 |
| Transfer Doc | 0000177508 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 27, 2018 |
| Property Address | 4100 FARISS LN, EL SOBRANTE, CA 94803-2212 |
| Document Number | 0000137122 |
| Instrument Date | Aug 17, 2018 |
| Instrument | 137122 |
| Transaction Type | Transfer |
| Record Updated | Sep 6, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount on Record |
|---|---|
| Tax | $734.80 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 283 LOBOS ST SAN FRANCISCO CA 941122910, SAN FRANCISCO, CA 94112-2910 |
The 2025 property tax bill for 4100 Fariss Ln was $2,398.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $93,821 (+2%) Land $21,552 Building $72,269 | |
| 2025 | $2,398.00 | $91,982 Land $21,130 Building $70,852 |
| 2023 | $2,283.00 (+2.24%) | $88,411 Land $20,310 Building $68,101 |
| 2022 | $2,233.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4100 Fariss Ln 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 A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 13 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 13 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 4100 Fariss Ln is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 481 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Sonic Telecom, T-Mobile, Unwired.
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