Contra Costa County property record for 337 Boulder Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,562 sqft · built 1986 |
| Lot Size | 0.186 acres (8,120 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $350,000 (Mar 2008) |
| Tax Bill | $5,712 (2025) |
| Deeds & Mortgages | Sep 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 072-213-004-4 |
| Primary APN | 072-213-004-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,562 sqft Living Area |
| 1st Floor Area | 1,312 sqft |
| 2nd Floor Area | 1,250 sqft |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1987 |
| Lot Area | 8,120 sqft (0.186 acres) |
| Garage Type | Attached |
| Garage Area | 660 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 337 BOULDER DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6207 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T6387A L0026 B |
| Legal Subdivision | SUBDIVISION 6387 |
| Legal Tract | 6387A |
| Legal Lot Number | 0026 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 355109 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 1405 ASTER DR, ANTIOCH, CA 94509-1413 |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 10, 2008 · Amount on Record |
| Deed Sale | Mar 10, 2008 · Amount on Record |
| Prior Sale | Sep 24, 2007 · Amount on Record |
| Deed Document Number | 200850748 |
| Prior Transfer Date | Mar 4, 2008 |
| Prior Transfer Doc | 0000050747 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 337 BOULDER DR, ANTIOCH, CA 94509-6207 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 337 BOULDER DR, ANTIOCH, CA 94509-6207 |
| Document Number | 0000255692 |
|---|---|
| Date | Sep 14, 2021 |
| Instrument | 2021-255692 |
| Name | THE GOLDEN 1 CU |
|---|---|
| Type | Credit Union |
| Address | SACRAMENTO, CA 95826 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Oct 1, 2036 |
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 | $468,906 (+2%) Land $40,183 Building $428,723 | |
| 2025 | $5,712.00 (+5.12%) | $459,713 (+4.04%) Land $39,396 Building $420,317 |
| 2023 | $5,434.00 (+1.59%) | $441,864 Land $37,867 Building $403,997 |
| 2022 | $5,349.00 |
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 | 0.01% 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.
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