Contra Costa County property record for 503 Texas St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,126 sqft · built 1940 |
| Lot Size | 0.131 acres (5,700 sqft) |
| Owner | Individual Name on File |
| Last Sale | $210,000 (Sep 2015) |
| Tax Bill | $3,706 (2025) |
| Deeds & Mortgages | May 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 067-293-008-8 |
| Primary APN | 067-293-008-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,126 sqft Living Area |
| 1st Floor Area | 1,126 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 5,700 sqft (0.131 acres) |
| Garage Type | Attached |
| Garage Area | 280 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 503 TEXAS ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-3636 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | WM UREN ADDN #1 LOT 8 BLK 10 |
| Legal Subdivision | WM UREN ADD |
| Legal Block | 10 |
| Legal Lot Number | 8 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 307102 |
503 Texas St is owned and occupied by an individual who bought it in September 2015.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 503 TEXAS ST, ANTIOCH, CA 94509-3636 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 30, 2015 · Amount on File |
| Deed Sale | Sep 30, 2015 · Amount on File |
| Prior Sale | Nov 30, 2009 · Amount on File |
| Deed Document Number | 2015203243 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 14, 2026 |
| Property Address | 503 TEXAS ST, ANTIOCH, CA 94509-3636 |
| Document Number | 0000050666 |
| Instrument Date | May 4, 2026 |
| Instrument | 202650666 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | ORANGE COAST TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 503 TEXAS ST, ANTIOCH, CA 94509-3636 |
| Investor | Possibly a Property Investor |
| Document Number | 0000050666, |
|---|---|
| Date | May 14, 2026 |
| Instrument | 202650666 |
| Name | WINTRUST MORTGAGE |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jun 1, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 6.46% |
| Initial Type | Fixed Rate |
| Max Rate | -1% |
The 2025 property tax bill for 503 Texas St was $3,706.
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 | $285,419 (+2%) Land $182,083 Building $103,336 | |
| 2025 | $3,706.00 | $279,823 Land $178,513 Building $101,310 |
| 2023 | $3,511.00 (+1.5%) | $268,959 Land $171,582 Building $97,377 |
| 2022 | $3,459.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 503 Texas St in Zone X, an area of minimal flood risk.
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.
The area around 503 Texas St has no burnable land within ember reach, so its wildfire risk is not rated.
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 561 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
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