Contra Costa County property record for 239 Boulder Dr, Antioch, CA 94509 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,877 sqft · built 1967 |
| Lot Size | 0.208 acres (9,047 sqft) |
| Owner | Company Name on File |
| Last Sale | $190,000 (Nov 2008) |
| Tax Bill | $3,311 (2025) |
| Deeds & Mortgages | Nov 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 072-041-017-4 |
| Primary APN | 072-041-017-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,877 sqft Living Area |
| 1st Floor Area | 1,877 sqft |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Lot Area | 9,047 sqft (0.208 acres) |
| Garage Type | Attached |
| Garage Area | 456 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 239 BOULDER DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6205 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 3596 LOT 50 EX MR |
| Legal Subdivision | SUBDIVISON 3596 |
| Legal Tract | 3596 |
| Legal Lot Number | 50 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 355109 |
Source: Contra Costa County records · APN 072-041-017-4
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 76 PLAZA CT, PITTSBURG, CA 94565-5925 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Nov 24, 2008 · Amount on Record |
| Deed Sale | Nov 24, 2008 · Amount on Record |
| Prior Sale | Mar 24, 2008 · Amount on Record |
| Deed Document Number | 2008254904 |
| Last Transfer Date | Oct 25, 2023 |
| Transfer Doc | 0000118239 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 02, 2023 |
| Property Address | 239 BOULDER DR, ANTIOCH, CA 94509-6205 |
| Document Number | 0000118239 |
| Map Reference | MB 112 PG 27 |
| Instrument Date | Oct 25, 2023 |
| Instrument | 2023-118239 |
| Transaction Type | Transfer |
| Record Updated | Nov 13, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 76 PLAZA CT, PITTSBURG, CA 94565-5925 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $249,548 (+2%) Land $65,666 Building $183,882 | |
| 2025 | $3,311.00 (+8.42%) | $244,656 (+4.04%) Land $64,379 Building $180,277 |
| 2023 | $3,054.00 (+1.5%) Homeowner's exemption | $235,158 Land $61,880 Building $173,278 |
| 2022 | $3,009.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 645 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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