Contra Costa County property record for 1661 Challenge Dr, Concord, CA 94520
| Property Type | Industrial Park |
|---|---|
| Details | 10,470 sqft · built 1972 |
| Lot Size | 0.574 acres (25,003 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $5,469 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 127-231-003-6 |
| Primary APN | 127-231-003-6 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 10,470 sqft Gross Area |
| 1st Floor Area | 10,470 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Lot Area | 25,003 sqft (0.574 acres) |
| Street Address | 1661 CHALLENGE DR |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-5206 |
| Property Category | Industrial |
| Property Type | Industrial > Industrial Park |
| Legal Description | TRACT 2588 LOT 16 EX MR |
| Legal Subdivision | CONCORD INDUSTRIAL PARK |
| Legal Tract | 2588 |
| Legal Lot Number | 16 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2057 |
| Census Tract | 327001 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | PO BOX 1997, SUN VALLEY, ID 83353-1997 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
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 | $352,785 (+2%) Land $109,392 Building $243,393 | |
| 2025 | $5,469.00 (+4.47%) | $345,869 (+4.04%) Land $107,248 Building $238,621 |
| 2023 | $5,235.00 (-27.18%) | $332,441 Land $103,085 Building $229,356 |
| 2022 | $7,189.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 7 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.
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 269 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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