Contra Costa County property record for 5403 Sopra St, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,734 sqft · built 2021 |
| Lot Size | 0.141 acres (6,134 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $708,500 (Feb 2022) |
| Tax Bill | $9,849 (2025) |
| Deeds & Mortgages | Sep 2025 Mortgage Feb 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 057-170-025-1 |
| Primary APN | 057-170-025-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,734 sqft Living Area |
| 1st Floor Area | 1,566 sqft |
| 2nd Floor Area | 1,168 sqft |
| Year Built | Built 2021 |
|---|---|
| Effective Year Built | Effective 2022 |
| Lot Area | 6,134 sqft (0.141 acres) |
| Garage Type | Attached |
| Garage Area | 503 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5403 SOPRA ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-5036 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T9489 L522 |
| Legal Subdivision | AVIANO PH 3 SUB 9489 |
| Legal Tract | 9489 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 303207 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Shannon-Williamson Ranch listed 1987 · 12 contributing resources · NRIS 87000003 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
5403 Sopra St is owned and occupied by two individuals who bought it in February 2022.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 5403 SOPRA ST, ANTIOCH, CA 94531-5036 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Sep 30, 2025 | Deed of Trust, Mortgage · FHA Mortgage NEWREZ LLC |
| Feb 7, 2022 | Grant Deed, Transfer · FHA Mortgage CALIBER HOME LOANS INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 7, 2022 · Amount on File |
| Deed Sale | Feb 7, 2022 · Amount on File |
| Deed Document Number | 202223069 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5403 SOPRA ST, ANTIOCH, CA 94531-5036 |
| Transaction Type | Mortgage |
| Record Updated | Oct 8, 2025 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 5403 SOPRA ST, ANTIOCH, CA 94531-5036 |
| Document Number | 0000102140 |
|---|---|
| Date | Sep 30, 2025 |
| Instrument | 2025- 102140 |
| Name | NEWREZ LLC |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 318 Months |
| Due | Mar 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 7, 2022 |
| Property Address | 5403 SOPRA ST, ANTIOCH, CA 94531-5036 |
| Document Number | 0000023069 |
| Map Reference | MB 546 PG 9-25 |
| Instrument Date | Feb 2, 2022 |
| Instrument | 2022-023069 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 5403 SOPRA STREET, ANTIOCH, CA 94531-5036 |
| Document Number | 0000023070 |
|---|---|
| Date | Feb 7, 2022 |
| Instrument | 2022-023070 |
| Name | CALIBER HOME LOANS INC |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2052 |
The 2025 property tax bill for 5403 Sopra St was $9,849.
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 | $766,469 (+2%) Land $270,608 Building $495,861 | |
| 2025 | $9,849.00 | $751,441 Land $265,302 Building $486,139 |
| 2023 | $9,319.00 (+60.67%) | $722,262 Land $255,000 Building $467,262 |
| 2022 | $5,800.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5403 Sopra St in Zone X, an area of minimal flood risk.
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 | 2 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 5403 Sopra St is moderate, ranking above 61% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 61% of the US · lower than 63% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect 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 782 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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