Contra Costa County property record for 2307 Asilomar Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,017 sqft · built 1993 |
| Lot Size | 0.191 acres (8,329 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $245,000 (Jan 1994) |
| Tax Bill | $5,228 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-140-068-2 |
| Primary APN | 055-140-068-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,017 sqft Living Area |
| 1st Floor Area | 1,581 sqft |
| 2nd Floor Area | 1,436 sqft |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 8,329 sqft (0.191 acres) |
| Garage Type | Attached |
| Garage Area | 645 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 2307 ASILOMAR DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-7787 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7290 L274 |
| Legal Tract | 7290 |
| Legal Lot Number | 274 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 355109 |
Source: Contra Costa County assessment roll, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 2307 ASILOMAR DR, ANTIOCH, CA 94509-7787 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 28, 1994 · Amount on Record |
| Deed Sale | Jan 28, 1994 · Amount on Record |
| Deed Document Number | 199425190 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $445,175 (+2%) Land $86,666 Building $358,509 | |
| 2025 | $5,228.00 (+6.24%) Homeowner's exemption | $436,447 (+4.04%) Land $84,967 Building $351,480 |
| 2023 | $4,921.00 (+1.55%) Homeowner's exemption | $419,501 Land $81,668 Building $337,833 |
| 2022 | $4,846.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| 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.
Source: FCC Broadband Data Collection, based on 536 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 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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