Contra Costa County property record for 527 Diablo Rd, Danville, CA 94526
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 2,494 sqft · built 1941 |
| Lot Size | 0.432 acres (18,817 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $6,868 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 216-141-025-9 |
| Primary APN | 216-141-025-9 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,494 sqft Living Area |
| 1st Floor Area | 2,494 sqft |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 2000 |
| Lot Area | 18,817 sqft (0.432 acres) |
| Garage Type | Attached |
| Garage Area | 528 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 527 DIABLO RD, 533 |
|---|---|
| City | DANVILLE |
| State | CA |
| Zip | 94526-3504 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T223PM6 PCL A |
| Legal Subdivision | SAN RAMON RHO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 346203 |
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 | 412 SYCAMORE CIR, DANVILLE, CA 94526-4237 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Oct 16, 2009 |
| Transfer Doc | 0000254408 |
| Record Updated | Oct 29, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Danville Town |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $530,474 (+2%) Land $78,127 Building $452,347 | |
| 2025 | $6,868.00 (-27.67%) | $520,074 (-29.83%) Land $76,596 Building $443,478 |
| 2023 | $9,495.00 (-2.56%) | $741,118 (+2%) Land $132,177 Building $608,941 |
| 2022 | $9,744.00 | $726,587 Land $129,586 Building $597,001 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 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 | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 | 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 337 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Etheric Networks.
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