Contra Costa County property record for 2504 Asilomar Dr, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,632 sqft · built 1991 |
| Lot Size | 0.153 acres (6,660 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $276,000 (Sep 2013) |
| Tax Bill | $4,170 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-100-009-4 |
| Primary APN | 055-100-009-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,632 sqft Living Area |
| 1st Floor Area | 1,632 sqft |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Lot Area | 6,660 sqft (0.153 acres) |
| Garage Type | Attached |
| Garage Area | 458 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 2504 ASILOMAR DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7719 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A-2 |
| Legal Description | T6899 L130 |
| Legal Tract | 6899 |
| Legal Lot Number | 130 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 355111 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 143 LANDSDOWNE LOOP, SAN RAMON, CA 94582-2802 |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 17, 2013 · Amount on Record |
| Deed Sale | Sep 17, 2013 · Amount on Record |
| Prior Sale | Jun 25, 2007 · Amount on Record |
| Deed Document Number | 2013226277 |
| Prior Transfer Date | Sep 11, 2013 |
| Prior Transfer Doc | 0000226278 |
| 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 | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $345,094 (+2%) Land $81,269 Building $263,825 | |
| 2025 | $4,170.00 (+6.46%) | $338,328 (+4.04%) Land $79,676 Building $258,652 |
| 2023 | $3,917.00 (+1.53%) | $325,192 Land $76,583 Building $248,609 |
| 2022 | $3,858.00 |
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 · 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 Claims | 1 (2010) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 2010 · other causes |
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 | Not rated no burnable land within 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 | 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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