Contra Costa County property record for 429 Brookside Ct, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,903 sqft · built 1992 |
| Lot Size | 0.186 acres (8,100 sqft) |
| Owner | Company Name on Record |
| Last Sale | $309,000 (Aug 2001) |
| Tax Bill | $5,384 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-621-033-7 |
| Primary APN | 068-621-033-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,903 sqft Living Area |
| 1st Floor Area | 1,031 sqft |
| 2nd Floor Area | 872 sqft |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Lot Area | 8,100 sqft (0.186 acres) |
| Garage Type | Attached |
| Garage Area | 521 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 429 BROOKSIDE CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6126 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7155 L159 |
| Legal Tract | 7155 |
| Legal Lot Number | 159 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2019 |
| Census Tract | 308001 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 330 WORRELL RD, ANTIOCH, CA 94509-5060 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 24, 2001 · Amount on Record |
| Deed Sale | Aug 24, 2001 · Amount on Record |
| Deed Document Number | 2001253207 |
| 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 | $465,588 (+2%) Land $105,466 Building $360,122 | |
| 2025 | $5,384.00 (+6.3%) | $456,460 (+4.04%) Land $103,399 Building $353,061 |
| 2023 | $5,065.00 (+1.58%) | $438,737 Land $99,385 Building $339,352 |
| 2022 | $4,986.00 |
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 | Low lower than 93% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 645 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 DSL | 100 / 20 |
May also be available: Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures