Contra Costa County property record for 1818 del Rio Dr, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,757 sqft · built 1962 |
| Lot Size | 0.346 acres (15,070 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $385,000 (Jun 1999) |
| Tax Bill | $7,583 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 167-331-008 |
| Primary APN | 167-331-008 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,757 sqft Living Area |
| 1st Floor Area | 1,757 sqft |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Lot Area | 15,070 sqft (0.346 acres) |
| Garage Type | Attached |
| Garage Area | 472 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1818 DEL RIO DR |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-2008 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15 |
| Legal Description | TRACT 2155 LOT 89 |
| Legal Subdivision | BONNIE BRAE HIGHLANDS |
| Legal Tract | 2155 |
| Legal Lot Number | 89 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 326000 |
Source: Contra Costa County assessment roll, APN 167-331-008, as of July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1818 DEL RIO DR, LAFAYETTE, CA 94549-2008 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 30, 1999 · Amount on Record |
| Deed Sale | Jun 30, 1999 · Amount on Record |
| Deed Document Number | 1999173122 |
| Last Transfer Date | Nov 26, 2002 |
| Transfer Doc | 0000463882 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $615,620 (+2%) Land $255,839 Building $359,781 | |
| 2025 | $7,583.00 (+4.09%) Homeowner's exemption | $603,550 (+4.04%) Land $250,823 Building $352,727 |
| 2023 | $7,285.00 (+0.87%) Homeowner's exemption | $580,115 Land $241,084 Building $339,031 |
| 2022 | $7,222.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133260001, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 3 in force |
| Wildfire Risk | Moderate above 40% of the US · lower than 76% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, 258 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T, Radiate Holdings, T-Mobile USA.
Source: EPA Safe Drinking Water Information System, water system CA0110005, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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