Contra Costa County property record for 370 Diablo Rd, Danville, CA 94526
| Property Type | Commercial Office |
|---|---|
| Details | 14,891 sqft · built 1985 |
| Lot Size | 0.507 acres (22,084 sqft) |
| Owner | Company Name on File |
| Tax Bill | $49,203 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 196-210-051-5 |
| Primary APN | 196-210-051-5 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 14,891 sqft Gross Area |
| 1st Floor Area | 14,891 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1987 |
| Lot Area | 22,084 sqft (0.507 acres) |
| Street Address | 370 DIABLO RD |
|---|---|
| City | DANVILLE |
| State | CA |
| Zip | 94526-3498 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | POR RO SAN RAMON |
| Legal Subdivision | SAN RAMON RHO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 345203 |
370 Diablo Rd, a commercial property, is owned by a company that acquired it in November 1997.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 24 TRACY CT, ALAMO, CA 94507-1725 |
| Owner Type | Company |
| Vesting | Company |
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 | Nov 21, 1997 |
| Deed Sale | Nov 21, 1997 |
| Deed Document Number | 1997228412 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 370 Diablo Rd was $49,203.
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 | $4,397,502 (+2%) Land $1,079,821 Building $3,317,681 | |
| 2025 | $49,203.00 | $4,311,278 Land $1,058,649 Building $3,252,629 |
| 2023 | $47,169.00 (+1.05%) | $4,143,868 Land $1,017,542 Building $3,126,326 |
| 2022 | $46,677.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 370 Diablo Rd 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 · 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 |
| Nearby Flood Policies | 5 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.
Wildfire risk around 370 Diablo Rd is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 398 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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