Contra Costa County property record for 4284 Wilson Ln, Concord, CA 94521
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,733 sqft · built 1961 |
| Lot Size | 0.184 acres (8,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $349,000 (Jan 2003) |
| Tax Bill | $7,092 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 115-281-005-5 |
| Primary APN | 115-281-005-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,733 sqft Living Area |
| 1st Floor Area | 1,733 sqft |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Lot Area | 8,000 sqft (0.184 acres) |
| Garage Type | Attached |
| Garage Area | 369 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 4284 WILSON LN |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-1263 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R8 |
| Legal Description | TRACT 2902 LOT 13 |
| Legal Subdivision | CRESTWOOD |
| Legal Tract | 2902 |
| Legal Lot Number | 13 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 333200 |
4284 Wilson Ln is owned and occupied by two individuals who bought it in January 2003.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4284 WILSON LN, CONCORD, CA 94521-1263 |
| 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 | Jan 2, 2003 · Amount on File |
| Deed Sale | Jan 2, 2003 · Amount on File |
| Deed Document Number | 2003419 |
| Prior Transfer Date | Jan 4, 1994 |
| Prior Transfer Doc | 0000008703 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4284 Wilson Ln was $7,092.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $562,020 (+2%) Land $310,223 Building $251,797 | |
| 2025 | $7,092.00 | $551,001 Land $304,141 Building $246,860 |
| 2023 | $6,775.00 (+1.41%) | $529,607 Land $292,332 Building $237,275 |
| 2022 | $6,681.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4284 Wilson Ln 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.
The area around 4284 Wilson Ln has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 637 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
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