Contra Costa County property record for 420 Brookside Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,630 sqft · built 1976 |
| Lot Size | 0.171 acres (7,448 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $1,705 (2025) |
| Deeds & Mortgages | Oct 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-483-002-9 |
| Primary APN | 068-483-002-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,630 sqft Living Area |
| Gross Area | 2,113 sqft |
| 1st Floor Area | 1,630 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 7,448 sqft (0.171 acres) |
| Lot Dimensions | 90 ft deep x 76 ft wide |
| View / Lot | Canal |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 420 BROOKSIDE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6112 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T04661 L0194 B EX 1/2 MR |
| Legal Subdivision | 4661 AMD MOUNTAIRE MEADOWS 3 |
| Legal Tract | 04661 |
| Legal Lot Number | 194 |
| 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 October 22, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 420 BROOKSIDE DR, ANTIOCH, CA 94509-6112 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 14, 2026 |
| Property Address | 420 BROOKSIDE DR, ANTIOCH, CA 94509-6112 |
| Document Number | 0000110516 |
| Instrument Date | Oct 13, 2026 |
| Instrument | 2026110516 |
| Transaction Type | Transfer |
| Record Updated | Oct 21, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 420 BROOKSIDE DR, ANTIOCH, CA 94509-6112 |
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 | $110,134 (+2%) Land $37,865 Building $72,269 | |
| 2025 | $1,705.00 (+7.23%) Homeowner's exemption | $107,975 (+4.04%) Land $37,123 Building $70,852 |
| 2023 | $1,590.00 (+1.27%) Homeowner's exemption | $103,784 Land $35,683 Building $68,101 |
| 2022 | $1,570.00 |
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