Contra Costa County property record for 4022 Boulder Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,092 sqft · built 1979 |
| Lot Size | 0.239 acres (10,400 sqft) |
| Owner | Company Name on File |
| Tax Bill | $3,421 (2025) |
| Deeds & Mortgages | Nov 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 072-101-003-1 |
| Primary APN | 072-101-003-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,092 sqft Living Area |
| Gross Area | 2,730 sqft |
| 1st Floor Area | 2,092 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 10,400 sqft (0.239 acres) |
| Garage Type | Attached |
| Garage Area | 638 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4022 BOULDER DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6233 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T04693 L0158 B EX 1/4 MR |
| Legal Subdivision | SUBDIVISION 4693 |
| Legal Tract | 04693 |
| Legal Lot Number | 158 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 355109 |
Source: Contra Costa County records, as of August 13, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 22 E 15TH ST, ANTIOCH, CA 94509-2453 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | May 23, 1996 |
| Transfer Doc | 0000101408 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 30, 2018 |
| Property Address | 4022 BOULDER DR, ANTIOCH, CA 94509-6233 |
| Document Number | 0000192419 |
| Instrument Date | Nov 1, 2018 |
| Instrument | 192419 |
| Transaction Type | Transfer |
| Record Updated | Dec 11, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 1345 ANTIOCH CA 945090134, ANTIOCH, CA 94509-0134 |
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 | $259,650 (+2%) Land $44,390 Building $215,260 | |
| 2025 | $3,421.00 (+8.26%) | $254,560 (+4.04%) Land $43,520 Building $211,040 |
| 2023 | $3,160.00 (+1.54%) Homeowner's exemption | $244,677 Land $41,831 Building $202,846 |
| 2022 | $3,112.00 |
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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 376 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 · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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