Contra Costa County property record for 2040 Riley Ct, Concord, CA 94520
| Property Type | Quadplex |
|---|---|
| Details | 2,959 sqft · built 1954 |
| Lot Size | 0.23 acres (10,018 sqft) |
| Owner | Individual Name on File |
| Last Sale | $559,500 (Jun 2013) |
| Tax Bill | $11,331 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 128-200-031-2 |
| Primary APN | 128-200-031-2 |
|---|---|
| Alternative APN |
|
| Total Rooms | 4 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 2,959 sqft Living Area |
| Gross Area | 1,055 sqft |
| 1st Floor Area | 1,055 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Quadruplex |
| Lot Area | 10,018 sqft (0.23 acres) |
| Street Address | 2040 RILEY CT |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-3774 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | POR RO MONTE DEL DIABLO |
| Legal Subdivision | MONTE DEL DIABLO RHO |
| Legal Block | 200 |
| Legal Lot Number | 31 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 336202 |
2040 Riley Ct, a quadplex, is owned by an individual who bought it in June 2013.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 7178 CARNEROS LN, DUBLIN, CA 94568-4667 |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 4, 2013 · Amount on File |
| Deed Sale | Jun 4, 2013 · Amount on File |
| Prior Sale | Apr 16, 2013 · Amount on File |
| Deed Document Number | 2013140341 |
| Prior Transfer Date | Feb 26, 1997 |
| Prior Transfer Doc | 0000031705 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 2040 Riley Ct was $11,331.
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 | $702,752 (+2%) Land $294,540 Building $408,212 | |
| 2025 | $11,331.00 | $688,973 Land $288,765 Building $400,208 |
| 2023 | $10,676.00 (+1.43%) | $662,220 Land $277,552 Building $384,668 |
| 2022 | $10,526.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 2040 Riley Ct 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
| 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 |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 2040 Riley Ct is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% 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 | 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 609 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 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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