Contra Costa County property record for 30 Diablo Cir, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,191 sqft · built 1949 |
| Lot Size | 0.449 acres (19,550 sqft) |
| Owner | Individual Name on File |
| Last Sale | $690,000 (Jul 2000) |
| Tax Bill | $13,353 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 251-081-007-6 |
| Primary APN | 251-081-007-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,191 sqft Living Area |
| 1st Floor Area | 2,191 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Architectural Style | Traditional |
| Exterior Material | Wood Siding |
| Roof Material | Composition Shingle |
| Lot Area | 19,550 sqft (0.449 acres) |
| Garage Type | Attached |
| Garage Area | 430 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 30 DIABLO CIR |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-3340 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | HIDDEN VALLEY ESTATES #2 LOT 65 |
| Legal Subdivision | HIDDEN VALLEY ESTATES #2 |
| Legal Lot Number | 65 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 353002 |
30 Diablo Cir is owned and occupied by an individual who acquired it in April 2002.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 30 DIABLO CIR, LAFAYETTE, CA 94549-3340 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
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 | Jul 18, 2000 · Amount on File |
| Deed Sale | Jul 18, 2000 · Amount on File |
| Deed Document Number | 2000150658 |
| Last Transfer Date | Apr 18, 2002 |
| Transfer Doc | 0000144448 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 30 Diablo Cir was $13,353 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Lafayette City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Lafayette Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,060,496 (+2%) Land $509,038 Building $551,458 | |
| 2025 | $13,353.00 Homeowner's exemption | $1,039,703 Land $499,057 Building $540,646 |
| 2023 | $12,887.00 (+1.58%) Homeowner's exemption | $999,332 Land $479,679 Building $519,653 |
| 2022 | $12,687.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 30 Diablo Cir in Zone X, an area of minimal flood risk, though there have been 10 flood claims nearby since 1978.
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 Policies | 3 in force |
| Nearby Flood Claims | 10 (1978–2001) |
| Claims Outside the SFHA | 7 of 10 |
| Most Recent Claim | Mar 2001 · rainfall accumulation |
| Claims by Event |
|
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 30 Diablo Cir is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | None beyond 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 | 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 277 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
May also be available: AT&T, Etheric Networks, Unwired.
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