Contra Costa County property record for 634 Lois Ln, El Sobrante, CA 94803
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,340 sqft · built 1990 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $290,000 (Jul 1999) |
| Tax Bill | $6,844 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 435-120-051-6 |
| Primary APN | 435-120-051-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,340 sqft Living Area |
| 1st Floor Area | 1,954 sqft |
| Basement Area | 386 sqft |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Lot Area | 7,200 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 634 LOIS LN |
|---|---|
| City | EL SOBRANTE |
| State | CA |
| Zip | 94803-3489 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | T5618 L12 |
| Legal Subdivision | SUBDIVISION 5618 |
| Legal Tract | 5618 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 361000 |
634 Lois Ln is owner-occupied and held in a trust since April 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 634 LOIS LN, EL SOBRANTE, CA 94803-3489 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Jul 21, 1999 · Amount on File |
| Deed Sale | Jul 21, 1999 · Amount on File |
| Deed Document Number | 1999191516 |
| Last Transfer Date | Apr 10, 2025 |
| Transfer Doc | 0000042428 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 634 Lois Ln was $6,844.
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 | $454,459 (+2%) Land $133,246 Building $321,213 | |
| 2025 | $6,844.00 | $445,549 Land $130,634 Building $314,915 |
| 2023 | $6,539.00 (+1.47%) | $428,250 Land $125,562 Building $302,688 |
| 2022 | $6,444.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 634 Lois Ln in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2010.
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 |
| Nearby Flood Claims | 2 (2010–2016) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Apr 2016 · rainfall accumulation |
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 634 Lois Ln is moderate, ranking above 58% 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 58% of the US · lower than 65% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 396 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Unwired.
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