Contra Costa County property record for 331 Sweeney Rd, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,403 sqft · built 1952 |
| Lot Size | 0.113 acres (4,928 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $300,000 (Sep 2016) |
| Tax Bill | $4,389 (2025) |
| Deeds & Mortgages | Jul 2018 Mortgage Jun 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-245-027-5 |
| Primary APN | 068-245-027-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,403 sqft Living Area |
| 1st Floor Area | 1,403 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Lot Area | 4,928 sqft (0.113 acres) |
| Garage Type | Attached |
| Garage Area | 298 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 331 SWEENEY RD |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-5050 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | GARROW SUBN #1 LOT 25 |
| Legal Subdivision | GARROW SUB |
| Legal Lot Number | 25 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1021 |
| Census Tract | 308001 |
Source: Contra Costa County records · APN 068-245-027-5
Assessment roll updated July 14, 2026 · Last verified July 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 | 331 SWEENEY RD, ANTIOCH, CA 94509-5050 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Jul 13, 2018 | Deed of Trust, Mortgage · Conventional Mortgage PRIMARY RESIDENTIAL MORTGAGE INC |
| Jun 25, 2021 | Deed of Trust, Mortgage · Conventional Mortgage SUN WEST MORTGAGE COMPANY INC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Sep 12, 2016 · Amount on Record |
| Deed Sale | Sep 12, 2016 · Amount on Record |
| Deed Document Number | 2016186059 |
| Prior Transfer Date | May 30, 2016 |
| Prior Transfer Doc | 0000105830 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 331 SWEENEY RD, ANTIOCH, CA 94509-5050 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000111517 |
|---|---|
| Date | Jul 13, 2018 |
| Instrument | 2018-111517 |
| Name | PRIMARY RESIDENTIAL MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Address | SALT LAKE CITY, UT 84116 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2048 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 331 SWEENEY RD, ANTIOCH, CA 94509-5050 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 331 SWEENEY RD, ANTIOCH, CA 94509-5050 |
| Document Number | 0000183100 |
|---|---|
| Date | Jun 25, 2021 |
| Instrument | 2021-183100 |
| Name | SUN WEST MORTGAGE COMPANY INC |
|---|---|
| Type | Mortgage Company |
| Address | BUENA PARK, CA 90620 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 01, 2051 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $355,012 (+2%) Land $171,647 Building $183,365 | |
| 2025 | $4,389.00 (+5.43%) Homeowner's exemption | $348,052 (+4.04%) Land $168,282 Building $179,770 |
| 2023 | $4,163.00 (+1.59%) Homeowner's exemption | $334,540 Land $161,749 Building $172,791 |
| 2022 | $4,098.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 3 (1998–2004) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Nov 2004 · rainfall accumulation |
| Claims by Event |
|
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
Based on FCC filings for 597 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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